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IDProjectCategoryView StatusLast Update
0008757ardourbugspublic2021-08-20 10:09
Reporteral f Assigned Topaul  
PrioritynormalSeverityminorReproducibilitysometimes
Status closedResolutionfixed 
PlatformUbuntuOSLinuxOS Version(any)
Product Version6.7 
Summary0008757: Ardour crashing
DescriptionSudden crashes where Ardour abruptly exits with no error message
Steps To ReproduceOpen existing project
Import file(s) to new tracks

Solo new track, start playback from start / home of track
Do multiple placements of playhead while playing back (to find the correct edit point)

Crash happens here, or sometimes after I repeat the procedure with another track.

Possibly after small edits like cutting and moving regions between tracks. Not sure since the crash is 'sometimes'.

After crash Studio controls show a count of several xruns
Additional InformationOn next start, Ardour is aware of the crash:

"This session appears to have been modified without save, or in middle of recording when Ardour or the computer was shutdown"

This is followed by a choice whether to "ignore crash data" or "Recover from crash"
Tags6.7, 6.8, Editor, Import

Activities

Hans Flikkema

2021-06-24 16:49

reporter   ~0026004

Hi

I have the same problems with Ardour 6.7 running on W10. I tried 6.7.0, 6.7.12 and 6.7.52
They all crash after one tot 10 minutes, with no recovery, no messages when I open existing projects. All these projects run smoothly without any problems using 6.6.346 and 6.5.51
I have to finish 2 important projects in the next 2 month so I re installed 6.6.346
I'm getting a bit worried for 6.5.0, also a official release had also major issues. I had to wiat for nightly build version 5.5.50 for smooth runnings.

al f

2021-07-20 12:54

reporter   ~0026066

I have been experiencing crashes with Ardour 6.8 as well.

I am editing an interview which means extensive splitting, combining and moving of regions. I believe my work is not heavy on resources as the audio lasts less than an hour and I am working with at most three tracks (hardware is 32 GB RAM with an Intel Core i7 processor).

There is a sudden burst of xruns (or the crash causes them, I can't determine which) and Ardour just exits without any message.

I am not sure how to reproduce the crash, but it happens often - four or five times today during some two or three hours of editing. The crash changes at least one setting: on restart of Ardour, the transport does not follow the playhead and I have to manually set Transport > Folllow Playhead.

Thankfully, there is usually not much work lost, partly because of saving frequently and partly because Ardours "recover from crash" option at restart leaves out just the few last operations.

al f

2021-07-20 12:57

reporter   ~0026067

Also, the interview files are directly recorded into Ardour, not imported as the tag from my original post implies.

al f

2021-07-21 06:10

reporter   ~0026068

I've been reading https://ardour.org/debugging_ardour and understand I should provide a backtrace. The guide tells me to use gdb, directing me to https://www.gnu.org/software/gdb/ for downloading.

I would prefer running something from the repositories of my (K)Ubuntu Studio install. Could I get some pointer for that, or is gdb required?

al f

2021-07-21 11:33

reporter   ~0026069

From the debugging guide I followed option 2, typing $ ulimit -c unlimited after which i started Ardour

I did NOT download Ardour with debugging symbols (if that's a requirement, let me know). The core dump is more than 600 MB and can't be uploaded here, so I put it at https://mega.nz/folder/NThzWCAJ#hBluhOmOunCziKDUfpKDvA

Do I need to "undo" ulimit -c unlimited - if so, how?

al f

2021-07-21 15:38

reporter   ~0026071

I uploaded two new core dumps to the location given above. On both occasions Ardour crashed when scrolling in the navigation field at the bottom of the scren to zoom in for editing.

al f

2021-07-21 21:01

reporter   ~0026072

These crashes does not seem to happen with Ardour 6.6, which I've been running for the last few hours.

I've been using the new "Region Cue Markers" extensively, otherwise I don't think I'm using functions in 6.8 not present in 6.6.

Sorry if I'm posting too many times here...

al f

2021-07-22 20:34

reporter   ~0026073

After reading the reporting guide more closely, I see I didn't do it right. Attached here is the log from gdb, hope I got it right this time...
Ardour exits with segmentation fault
ardour-gdb.log (61,237 bytes)   
Thread 31 (Thread 0x7efbefc30700 (LWP 61383)):
#0  0x00007efc18db7aff in __GI___poll (fds=0x7efbefc2fae8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efc20230017 in CrossThreadChannel::poll_for_request() () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#2  0x00007efc20230076 in CrossThreadChannel::receive(char&, bool) () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#3  0x00007efc219ea026 in ARDOUR::Butler::thread_work() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc219eb1d2 in ARDOUR::Butler::_thread_work(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc202589e6 in ?? () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7efc1449c700 (LWP 61114)):
#0  0x00007efc18d823bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7efc1449bb40, rem=0x7efc1449bb50) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007efc18d88047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007efc1f0d9a38 in g_usleep () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00005582655488fb in ?? ()
#4  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7efc0069c700 (LWP 61138)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5582689a2458) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5582689a2400, cond=0x5582689a2430) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5582689a2430, mutex=0x5582689a2400) at pthread_cond_wait.c:638
#3  0x00007efc01441382 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007efc01438dfd in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007efc01440870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7efc13c9b700 (LWP 61115)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efc1f0f9e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc21f18e67 in ?? () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007efc1f642c4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7efc10c5e700 (LWP 61119)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efc1f0f9e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc219989bd in ARDOUR::AudioEngine::do_reset_backend() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007efc1f642c4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7efbcd9a0700 (LWP 61388)):
#0  0x00007efc18d823bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7efbcd99fcc0, rem=0x7efbcd99fcd0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007efc18d88047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007efc1f0d9a38 in g_usleep () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00007efc219dc8a0 in ARDOUR::AutomationWatch::thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc1f642c4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#5  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7efc02d0f700 (LWP 61120)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efc1f0f9e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc21996863 in ARDOUR::AudioEngine::do_devicelist_update() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007efc1f642c4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7efbefcb1700 (LWP 61382)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270c46c58) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21abfcc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21abff38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc01482d81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7efbcd19f700 (LWP 61384)):
#0  0x00007efc18db7aff in __GI___poll (fds=0x7efba400fa50, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efc1f0a8d66 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc1f0a90f2 in g_main_loop_run () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00007efc20225b52 in BaseUI::main_thread() () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#4  0x00007efc1f642c4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#5  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7efbedf8a700 (LWP 61140)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efc014425bc in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007efc014426c5 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007efc01428b79 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007efc01427463 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007efc01482280 in ARDOUR::JACKAudioBackend::process_thread() () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007efc014273c7 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#7  0x00007efc01440870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#8  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7efbef7fe700 (LWP 61128)):
#0  0x00007efc18db7aff in __GI___poll (fds=0x558267941c20, nfds=2, timeout=1404) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efc1f0a8d66 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc1f0a8e7c in g_main_context_iteration () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00007efc1f0a8ec1 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#4  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7efb8ebb4700 (LWP 61387)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558278a909a8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x558278a90958, cond=0x558278a90980) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x558278a90980, mutex=0x558278a90958) at pthread_cond_wait.c:638
#3  0x00007efc21e2f6e3 in ARDOUR::Session::auto_connect_thread_run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e2f8b8 in ARDOUR::Session::auto_connect_thread(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7efbefd32700 (LWP 61381)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270c46c58) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21abfcc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21abff38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc01482d81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7efbeffc2900 (LWP 61375)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270be9d40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21e15d09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e16128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7efbeeffd700 (LWP 61386)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558278a9093c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x558278a908e8, cond=0x558278a90910) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x558278a90910, mutex=0x558278a908e8) at pthread_cond_wait.c:638
#3  0x00007efc21ea5ce3 in ARDOUR::Session::emit_thread_run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21ea5d18 in ARDOUR::Session::emit_thread(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7efbeffce900 (LWP 61374)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270be9d40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21e15d09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e16128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7efbefeb5700 (LWP 61378)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270c46c58) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21abfcc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21abff38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc01482d81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7efc00012900 (LWP 61369)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270be9d40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21e15d09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e16128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7efbeffda900 (LWP 61373)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270be9d40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21e15d09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e16128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7efc1349a700 (LWP 61116)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efc1f0f9e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc21f18e67 in ?? () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007efc1f642c4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7efbefe34700 (LWP 61379)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270c46c80) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270c46c80, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270c46c80, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21abfb06 in ARDOUR::Graph::reached_terminal_node() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21abfc78 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc21abff38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#6  0x00007efc01482d81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#7  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7efbefff2900 (LWP 61371)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270be9d40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21e15d09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e16128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7efbeffe6900 (LWP 61372)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270be9d40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21e15d09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e16128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7efc004a7700 (LWP 61139)):
#0  __libc_read (nbytes=4, buf=0x7efc004a6b80, fd=17) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __libc_read (fd=17, buf=0x7efc004a6b80, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007efc01441b12 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007efc014469ed in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007efc01440870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7efc12c99700 (LWP 61117)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efc1f0f9e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc21957a07 in ARDOUR::Analyser::work() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007efc1f642c4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7efbeffb7700 (LWP 61376)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270c46c58) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21abfcc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21ac0220 in ARDOUR::Graph::main_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc01482d81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7efbcc99e700 (LWP 61357)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efc1f0f9f61 in g_cond_wait_until () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007efc1f0743fb in g_async_queue_timeout_pop () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00007efc1f0d8a14 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#4  0x00007efc1f0d81e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7efbefdb3700 (LWP 61380)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270c46c58) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21abfcc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21abff38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc01482d81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7efbefffe900 (LWP 61370)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270be9d40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270be9d40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21e15d09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21e16128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7efbeff36700 (LWP 61377)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x558270c46c58) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007efc1b1d34e8 in __new_sem_wait_slow (sem=0x558270c46c58, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007efc21abfcc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007efc21abff38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007efc01482d81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007efc1b1c9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007efc18dc4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7efc1507bd40 (LWP 61108)):
#0  0x00007efc20a7a94c in ArdourCanvas::Item::position_offset() const () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
#1  0x00007efc20a7aad9 in ArdourCanvas::Item::item_to_canvas(ArdourCanvas::Duple const&) const () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
#2  0x00007efc20a7ab64 in ArdourCanvas::Item::canvas_origin() const () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
#3  0x000055826504d14e in ?? ()
#4  0x0000558264d36b0a in ?? ()
#5  0x0000558264d36d60 in ?? ()
#6  0x0000558264d36f7c in ?? ()
#7  0x00007efc1f0a8a2a in g_main_context_dispatch () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#8  0x00007efc1f0a8dd0 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#9  0x00007efc1f0a8e7c in g_main_context_iteration () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#10 0x00007efc1e699601 in gtk_main_iteration () from /opt/Ardour-6.8.0/lib/libgtk-x11-2.0.so.0
#11 0x00007efc204f77e5 in Gtkmm2ext::UI::flush_pending(float) () from /opt/Ardour-6.8.0/lib/libgtkmm2ext.so.0
#12 0x0000558264c88b0c in ?? ()
#13 0x0000558264c89b02 in ?? ()
#14 0x0000558264c8b5b4 in ?? ()
#15 0x00007efc1c7fc5f5 in ?? () from /opt/Ardour-6.8.0/lib/libgtkmm-2.4.so.1
#16 0x00007efc1f3b7945 in g_closure_invoke () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#17 0x00007efc1f3c901b in ?? () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#18 0x00007efc1f3d2c30 in g_signal_emit_valist () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#19 0x00007efc1f3d3082 in g_signal_emit () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#20 0x00007efc1e5f780c in gtk_dialog_response () from /opt/Ardour-6.8.0/lib/libgtk-x11-2.0.so.0
#21 0x00005582653adfbc in ?? ()
#22 0x00007efc1f651c88 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#23 0x00007efc1f3b7b74 in ?? () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#24 0x00007efc1f3d2904 in g_signal_emit_valist () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#25 0x00007efc1f3d3082 in g_signal_emit () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#26 0x00007efc1f3b7945 in g_closure_invoke () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#27 0x00007efc1f3c8bf2 in ?? () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#28 0x00007efc1f3d2c30 in g_signal_emit_valist () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#29 0x00007efc1f3d3082 in g_signal_emit () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#30 0x00007efc1e5f60d4 in ?? () from /opt/Ardour-6.8.0/lib/libgtk-x11-2.0.so.0
#31 0x00007efc1f3b7b74 in ?? () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#32 0x00007efc1f3d2904 in g_signal_emit_valist () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#33 0x00007efc1f3d3082 in g_signal_emit () from /opt/Ardour-6.8.0/lib/libgobject-2.0.so.0
#34 0x00007efc1e5b4ad2 in ?? () from /opt/Ardour-6.8.0/lib/libgtk-x11-2.0.so.0
#35 0x00007efc1e263807 in ?? () from /opt/Ardour-6.8.0/lib/libgdk-x11-2.0.so.0
#36 0x00007efc1f0a95a9 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#37 0x00007efc1f0a8a2a in g_main_context_dispatch () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#38 0x00007efc1f0a8dd0 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#39 0x00007efc1f0a90f2 in g_main_loop_run () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#40 0x00007efc1e6993e7 in gtk_main () from /opt/Ardour-6.8.0/lib/libgtk-x11-2.0.so.0
#41 0x00007efc204f5a55 in Gtkmm2ext::UI::run(Receiver&) () from /opt/Ardour-6.8.0/lib/libgtkmm2ext.so.0
#42 0x0000558264be13fb in ?? ()
#43 0x00007efc18cc90b3 in __libc_start_main (main=0x558264be1000, argc=1, argv=0x7ffd203af9f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd203af9e8) at ../csu/libc-start.c:308
#44 0x0000558264be7fda in ?? ()
[New LWP 62301]
[New LWP 62360]
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[New LWP 62312]
[New LWP 62346]
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[New LWP 62358]
[New LWP 62342]
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[New LWP 62310]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/opt/Ardour-6.8.0/bin/ardour-6.8.0'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f3ac5335e00 in ArdourCanvas::Item::add_child_bounding_boxes(bool) const () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
[Current thread is 1 (Thread 0x7f3ab9935d40 (LWP 62301))]

Thread 37 (Thread 0x7f3ab37fe700 (LWP 62310)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac6211a07 in ARDOUR::Analyser::work() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 36 (Thread 0x7f3a7499e700 (LWP 62355)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55791bf30e8c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55791bf30e38, cond=0x55791bf30e60) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55791bf30e60, mutex=0x55791bf30e38) at pthread_cond_wait.c:638
#3  0x00007f3ac66e96e3 in ARDOUR::Session::auto_connect_thread_run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66e98b8 in ARDOUR::Session::auto_connect_thread(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7f3aa8562700 (LWP 62328)):
#0  __libc_read (nbytes=4, buf=0x7f3aa8561b80, fd=17) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __libc_read (fd=17, buf=0x7f3aa8561b80, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f3aa9cfdb12 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007f3aa9d029ed in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007f3aa9cfc870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7f3a5cbf9700 (LWP 62362)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac6d7e68d in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#3  0x00007f3ac6d7e743 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#4  0x00007f3ac6d7e9eb in ArdourWaveView::WaveViewThreads::_thread_proc() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#5  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#6  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#7  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7f3ab3fff700 (LWP 62308)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac67d2e67 in ?? () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7f3a27fff700 (LWP 62363)):
#0  0x00007f3abc09f4bb in ?? () from /opt/Ardour-6.8.0/lib/libpixman-1.so.0
#1  0x00007f3abbff2a37 in pixman_image_composite32 () from /opt/Ardour-6.8.0/lib/libpixman-1.so.0
#2  0x00007f3ac23af3cc in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#3  0x00007f3ac2406a49 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#4  0x00007f3ac2406e9e in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#5  0x00007f3ac23a11f9 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#6  0x00007f3ac240c83c in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#7  0x00007f3ac23aa4cc in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#8  0x00007f3ac2399f66 in cairo_mask_surface () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#9  0x00007f3ac01d1274 in Cairo::Context::mask(Cairo::RefPtr<Cairo::Surface const> const&, double, double) () from /opt/Ardour-6.8.0/lib/libcairomm-1.0.so.1
#10 0x00007f3ac6d77da4 in ArdourWaveView::WaveView::draw_image(Cairo::RefPtr<Cairo::ImageSurface>&, ARDOUR::PeakData*, int, boost::shared_ptr<ArdourWaveView::WaveViewDrawRequest>) () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#11 0x00007f3ac6d78def in ArdourWaveView::WaveView::process_draw_request(boost::shared_ptr<ArdourWaveView::WaveViewDrawRequest>) () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#12 0x00007f3ac6d7ea24 in ArdourWaveView::WaveViewThreads::_thread_proc() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#13 0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#14 0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#15 0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#16 0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7f3aa3fff700 (LWP 62321)):
#0  0x00007f3abd671aff in __GI___poll (fds=0x557916d2c170, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3ac3962d66 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac3962e7c in g_main_context_iteration () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00007f3ac3962ec1 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#4  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7f3aa37fe700 (LWP 62353)):
#0  0x00007f3abd671aff in __GI___poll (fds=0x7f3a3417a820, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3ac3962d66 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac39630f2 in g_main_loop_run () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00007f3ac4adfb52 in BaseUI::main_thread() () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#4  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#5  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7f3aa096e700 (LWP 62352)):
#0  0x00007f3abd671aff in __GI___poll (fds=0x7f3aa096dae8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3ac4aea017 in CrossThreadChannel::poll_for_request() () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#2  0x00007f3ac4aea076 in CrossThreadChannel::receive(char&, bool) () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#3  0x00007f3ac62a4026 in ARDOUR::Butler::thread_work() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac62a51d2 in ARDOUR::Butler::_thread_work(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3ac4b129e6 in ?? () from /opt/Ardour-6.8.0/lib/libpbd.so.4
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f3aa8757700 (LWP 62327)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557916f11e48) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x557916f11df0, cond=0x557916f11e20) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x557916f11e20, mutex=0x557916f11df0) at pthread_cond_wait.c:638
#3  0x00007f3aa9cfd382 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007f3aa9cf4dfd in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007f3aa9cfc870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f3a5ffff700 (LWP 62356)):
#0  0x00007f3abd63c3bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7f3a5fffecc0, rem=0x7f3a5fffecd0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007f3abd642047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007f3ac3993a38 in g_usleep () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x00007f3ac62968a0 in ARDOUR::AutomationWatch::thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#5  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f3aa8ff4700 (LWP 62354)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55791bf30e1c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55791bf30dc8, cond=0x55791bf30df0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55791bf30df0, mutex=0x55791bf30dc8) at pthread_cond_wait.c:638
#3  0x00007f3ac675fce3 in ARDOUR::Session::emit_thread_run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac675fd18 in ARDOUR::Session::emit_thread(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f3a5f3fe700 (LWP 62357)):
#0  0x00007f3ac238df4d in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#1  0x00007f3ac238ee07 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#2  0x00007f3ac23903ea in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#3  0x00007f3ac23d7574 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#4  0x00007f3ac2407050 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#5  0x00007f3ac23a132e in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#6  0x00007f3ac23beb22 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#7  0x00007f3ac240cad3 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#8  0x00007f3ac23aa84a in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#9  0x00007f3ac23a3299 in ?? () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#10 0x00007f3ac239a02a in cairo_stroke () from /opt/Ardour-6.8.0/lib/libcairo.so.2
#11 0x00007f3ac01d129d in Cairo::Context::stroke() () from /opt/Ardour-6.8.0/lib/libcairomm-1.0.so.1
#12 0x00007f3ac6d77ad7 in ArdourWaveView::WaveView::draw_image(Cairo::RefPtr<Cairo::ImageSurface>&, ARDOUR::PeakData*, int, boost::shared_ptr<ArdourWaveView::WaveViewDrawRequest>) () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#13 0x00007f3ac6d78def in ArdourWaveView::WaveView::process_draw_request(boost::shared_ptr<ArdourWaveView::WaveViewDrawRequest>) () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#14 0x00007f3ac6d7ea24 in ArdourWaveView::WaveViewThreads::_thread_proc() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#15 0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#16 0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#17 0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#18 0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f3aa0d00900 (LWP 62344)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x557917aea030) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac66cfd09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66d0128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f3aa0cf5700 (LWP 62345)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55791c411f68) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac6379cc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac637a220 in ARDOUR::Graph::main_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3aa9d3ed81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f3aa27fc700 (LWP 62329)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3aa9cfe5bc in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007f3aa9cfe6c5 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007f3aa9ce4b79 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007f3aa9ce3463 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007f3aa9d3e280 in ARDOUR::JACKAudioBackend::process_thread() () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007f3aa9ce33c7 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#7  0x00007f3aa9cfc870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#8  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f3aa0af1700 (LWP 62349)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55791c411f68) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac6379cc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac6379f38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3aa9d3ed81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f3aa0d24900 (LWP 62341)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x557917aea030) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac66cfd09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66d0128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f3aa0d30900 (LWP 62340)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x557917aea030) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac66cfd09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66d0128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f3aa0d18900 (LWP 62342)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x557917aea030) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac66cfd09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66d0128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f3a5ebfd700 (LWP 62358)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac6d7e68d in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#3  0x00007f3ac6d7e743 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#4  0x00007f3ac6d7e9eb in ArdourWaveView::WaveViewThreads::_thread_proc() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#5  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#6  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#7  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f3aab7fe700 (LWP 62309)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac67d2e67 in ?? () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f3aa0d48900 (LWP 62338)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x557917aea030) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac66cfd09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66d0128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f3aaaffd700 (LWP 62313)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac6250863 in ARDOUR::AudioEngine::do_devicelist_update() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f3aa0bf3700 (LWP 62347)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55791c411f68) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac6379cc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac6379f38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3aa9d3ed81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f3aa09ef700 (LWP 62351)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55791c411f90) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55791c411f90, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x55791c411f90, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac6379b06 in ARDOUR::Graph::reached_terminal_node() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac6379c78 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3ac6379f38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#6  0x00007f3aa9d3ed81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#7  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f3ab8d56700 (LWP 62307)):
#0  0x00007f3abd63c3bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7f3ab8d55b40, rem=0x7f3ab8d55b50) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007f3abd642047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007f3ac3993a38 in g_usleep () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#3  0x000055791620b8a4 in ?? ()
#4  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f3aa0b72700 (LWP 62348)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55791c411f68) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac6379cc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac6379f38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3aa9d3ed81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f3a5d3fa700 (LWP 62361)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac6d7e68d in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#3  0x00007f3ac6d7e743 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#4  0x00007f3ac6d7e9eb in ArdourWaveView::WaveViewThreads::_thread_proc() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#5  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#6  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#7  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3aa0d0c900 (LWP 62343)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x557917aea030) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac66cfd09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66d0128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3aa0d3c900 (LWP 62339)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x557917aea030) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x557917aea030, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac66cfd09 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac66d0128 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3aa0a70700 (LWP 62350)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55791c411f68) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac6379cc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac6379f38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3aa9d3ed81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3aa0c74700 (LWP 62346)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55791c411f68) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007f3abfa8d4e8 in __new_sem_wait_slow (sem=0x55791c411f68, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007f3ac6379cc4 in ARDOUR::Graph::run_one() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#4  0x00007f3ac6379f38 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#5  0x00007f3aa9d3ed81 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/Ardour-6.8.0/lib/backends/libjack_audiobackend.so
#6  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3ab1c7f700 (LWP 62312)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac62529bd in ARDOUR::AudioEngine::do_reset_backend() () from /opt/Ardour-6.8.0/lib/libardour.so.3
#3  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#4  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#5  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3a5e3fc700 (LWP 62359)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac6d7e68d in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#3  0x00007f3ac6d7e743 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#4  0x00007f3ac6d7e9eb in ArdourWaveView::WaveViewThreads::_thread_proc() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#5  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#6  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#7  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3a5dbfb700 (LWP 62360)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3ac39b3e4c in g_cond_wait () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#2  0x00007f3ac6d7e68d in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#3  0x00007f3ac6d7e743 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#4  0x00007f3ac6d7e9eb in ArdourWaveView::WaveViewThreads::_thread_proc() () from /opt/Ardour-6.8.0/lib/libwaveview.so.0
#5  0x00007f3ac3efcc4d in ?? () from /opt/Ardour-6.8.0/lib/libglibmm-2.4.so.1
#6  0x00007f3ac39921e5 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#7  0x00007f3abfa83609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f3abd67e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3ab9935d40 (LWP 62301)):
#0  0x00007f3ac5335e00 in ArdourCanvas::Item::add_child_bounding_boxes(bool) const () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
#1  0x00007f3ac533604b in ArdourCanvas::Item::bounding_box(bool) const () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
#2  0x00007f3ac53362c5 in ArdourCanvas::Item::begin_change() () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
#3  0x00007f3ac53421c3 in ArdourCanvas::Line::set_x0(double) () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
#4  0x0000557915d101a1 in ?? ()
#5  0x00005579159f9b0a in ?? ()
#6  0x00005579159f9d60 in ?? ()
#7  0x00005579159f9f7c in ?? ()
#8  0x00007f3ac3962a2a in g_main_context_dispatch () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#9  0x00007f3ac3962dd0 in ?? () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#10 0x00007f3ac39630f2 in g_main_loop_run () from /opt/Ardour-6.8.0/lib/libglib-2.0.so.0
#11 0x00007f3ac2f533e7 in gtk_main () from /opt/Ardour-6.8.0/lib/libgtk-x11-2.0.so.0
#12 0x00007f3ac4dafa55 in Gtkmm2ext::UI::run(Receiver&) () from /opt/Ardour-6.8.0/lib/libgtkmm2ext.so.0
#13 0x00005579158a43fb in ?? ()
#14 0x00007f3abd5830b3 in __libc_start_main (main=0x5579158a4000, argc=1, argv=0x7fff5fde2c38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5fde2c28) at ../csu/libc-start.c:308
#15 0x00005579158aafda in ?? ()
Already logging to /home/alfh/MEGA/Ardour/ardour-gdb.log.
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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/opt/Ardour-6.8.0/bin/ardour-6.8.0'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007ff8a391f03e in ArdourCanvas::Item::bounding_box(bool) const () from /opt/Ardour-6.8.0/lib/libcanvas.so.0
[Current thread is 1 (Thread 0x7ff897f1ed40 (LWP 70022))]
ardour-gdb.log (61,237 bytes)   

paul

2021-07-22 21:42

administrator   ~0026074

It would be (more) useful if you could get a backtrace from a build with debugging symbols. This doesn't offer much context.

Also, some clue about what you were doing when the crash happened. If we can't reproduce it, it's hard to fix it.

al f

2021-07-22 21:55

reporter   ~0026075

Is there a binary with debugging symbols, or dpo I have to bulid?

I am editing when the crash happens: splitting, cutting, moving and combining regions. Also removing or inserting time and using / editing markers, both normal markers on the timeline and the newer region cue markers. I am quite sure the crash does not happen at the same action each time. Sometimes it will be after closing one session and opening the next, other times when moving a region or opening the menu to insert or remove time.

I also experience strange and erratic behaviour when inserting time (it is inserted at some random place to the left of the edit point (I am considering a separate bug report for this, though I have a feeling they have the same cause).

When crashing there are multiiple xruns counted by studio controls, but I haven't been able to determine if the xruns are caused by the crash or causing it.

paul

2021-07-22 22:12

administrator   ~0026076

You can grab one from nightly.ardour.org (there are free/demo copies which are fine for this purpose. They can be installed in parallel with any other version of Ardour whether from ardour.org or a distro.

xruns do not cause crashes.

al f

2021-07-22 22:45

reporter   ~0026077

Ok, so I tested with the debug version. Ardour crashes on opening a session after opening and closing several.
gdb-ardour-03.txt (60,983 bytes)   
Signal        Stop	Print	Pass to program	Description
SIG32         No	No	Yes		Real-time event 32
Starting program: /opt/Ardour-6.8.209-dbg/bin/ardour-6.8.209 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe824f700 (LWP 11771)]
[New Thread 0x7fffe7a4e700 (LWP 11772)]
[New Thread 0x7fffe724d700 (LWP 11773)]
[New Thread 0x7fffe6a4c700 (LWP 11774)]
[New Thread 0x7fffd3de5700 (LWP 11775)]
[Thread 0x7fffd3de5700 (LWP 11775) exited]
[New Thread 0x7fffd3de5700 (LWP 11776)]
[New Thread 0x7fffd1601700 (LWP 11777)]
[New Thread 0x7fffcb97d700 (LWP 11778)]
[New Thread 0x7fffcaeca700 (LWP 11779)]
[New Thread 0x7fffcae49700 (LWP 11780)]
[New Thread 0x7fffca648700 (LWP 11781)]
[New Thread 0x7fffca453700 (LWP 11782)]
[Thread 0x7fffca453700 (LWP 11782) exited]
[Thread 0x7fffca648700 (LWP 11781) exited]
[New Thread 0x7fffca648700 (LWP 11783)]
[New Thread 0x7fffca453700 (LWP 11784)]
[Thread 0x7fffca453700 (LWP 11784) exited]
[Thread 0x7fffca648700 (LWP 11783) exited]
[Thread 0x7fffcae49700 (LWP 11780) exited]
[New Thread 0x7fffcae49700 (LWP 11785)]
[New Thread 0x7fffca3d2700 (LWP 11786)]
[New Thread 0x7fffc9bd1700 (LWP 11787)]
[Thread 0x7fffcaeca700 (LWP 11779) exited]
[Thread 0x7fffc9bd1700 (LWP 11787) exited]
[Thread 0x7fffcb97d700 (LWP 11778) exited]
[New Thread 0x7fffca648700 (LWP 11788)]
[New Thread 0x7fffca453700 (LWP 11789)]
[New Thread 0x7fffc8f82700 (LWP 11790)]
[New Thread 0x7fffc9bd1700 (LWP 11791)]
[Detaching after vfork from child process 11792]
[Thread 0x7fffca3d2700 (LWP 11786) exited]
[New Thread 0x7fffca3d2700 (LWP 11796)]
[Thread 0x7fffca3d2700 (LWP 11796) exited]
[Detaching after vfork from child process 11797]
[New Thread 0x7fffca3d2700 (LWP 11798)]
[Thread 0x7fffca3d2700 (LWP 11798) exited]
[New Thread 0x7fffca3d2700 (LWP 11799)]
[New Thread 0x7fffd000e900 (LWP 11800)]
[New Thread 0x7fffc87bd900 (LWP 11801)]
[New Thread 0x7fffc87b1900 (LWP 11802)]
[New Thread 0x7fffc87a5900 (LWP 11803)]
[New Thread 0x7fffc8799900 (LWP 11804)]
[New Thread 0x7fffc878d900 (LWP 11805)]
[New Thread 0x7fffc8781900 (LWP 11806)]
[New Thread 0x7fffc8776700 (LWP 11807)]
[New Thread 0x7fffc86f5700 (LWP 11808)]
[New Thread 0x7fffc8674700 (LWP 11809)]
[New Thread 0x7fffc85f3700 (LWP 11810)]
[New Thread 0x7fffc8572700 (LWP 11811)]
[New Thread 0x7fffc84f1700 (LWP 11812)]
[New Thread 0x7fffc8470700 (LWP 11813)]
[New Thread 0x7fffc83ef700 (LWP 11815)]
[New Thread 0x7fff67fff700 (LWP 11816)]
[Thread 0x7fffca3d2700 (LWP 11799) exited]
[New Thread 0x7fffca3d2700 (LWP 11817)]
[New Thread 0x7fff65633700 (LWP 11818)]
[New Thread 0x7fff64e32700 (LWP 11819)]
[New Thread 0x7fff57fff700 (LWP 11820)]
[New Thread 0x7fff577fe700 (LWP 11821)]
[New Thread 0x7fff56ffd700 (LWP 11822)]
[New Thread 0x7fff567fc700 (LWP 11823)]
[New Thread 0x7fff55ffb700 (LWP 11824)]
[New Thread 0x7fff557fa700 (LWP 11825)]
[New Thread 0x7fff54ff9700 (LWP 11826)]
[Thread 0x7fffc9bd1700 (LWP 11791) exited]
[Thread 0x7fff65633700 (LWP 11818) exited]
[Thread 0x7fffc83ef700 (LWP 11815) exited]
[Thread 0x7fffc84f1700 (LWP 11812) exited]
[Thread 0x7fffc8470700 (LWP 11813) exited]
[Thread 0x7fffc8572700 (LWP 11811) exited]
[Thread 0x7fffc85f3700 (LWP 11810) exited]
[Thread 0x7fffc8674700 (LWP 11809) exited]
[Thread 0x7fffc86f5700 (LWP 11808) exited]
[Thread 0x7fffc8776700 (LWP 11807) exited]
[Thread 0x7fff64e32700 (LWP 11819) exited]
[Thread 0x7fff54ff9700 (LWP 11826) exited]
[Thread 0x7fff557fa700 (LWP 11825) exited]
[Thread 0x7fff55ffb700 (LWP 11824) exited]
[Thread 0x7fff567fc700 (LWP 11823) exited]
[Thread 0x7fff56ffd700 (LWP 11822) exited]
[Thread 0x7fff577fe700 (LWP 11821) exited]
[Thread 0x7fff57fff700 (LWP 11820) exited]
[Thread 0x7fffca3d2700 (LWP 11817) exited]
[Thread 0x7fff67fff700 (LWP 11816) exited]
[Thread 0x7fffc8781900 (LWP 11806) exited]
[Thread 0x7fffc878d900 (LWP 11805) exited]
[Thread 0x7fffc8799900 (LWP 11804) exited]
[Thread 0x7fffc87a5900 (LWP 11803) exited]
[Thread 0x7fffc87b1900 (LWP 11802) exited]
[Thread 0x7fffc87bd900 (LWP 11801) exited]
[Thread 0x7fffd000e900 (LWP 11800) exited]
[New Thread 0x7fff67fff700 (LWP 11848)]
[New Thread 0x7fffca3d2700 (LWP 11849)]
[Thread 0x7fff67fff700 (LWP 11848) exited]
[New Thread 0x7fffc8781900 (LWP 11853)]
[New Thread 0x7fffc878d900 (LWP 11854)]
[New Thread 0x7fffc8799900 (LWP 11855)]
[New Thread 0x7fffc87a5900 (LWP 11856)]
[New Thread 0x7fffc87b1900 (LWP 11857)]
[New Thread 0x7fffc87bd900 (LWP 11858)]
[New Thread 0x7fffd000e900 (LWP 11859)]
[New Thread 0x7fffc9bd1700 (LWP 11860)]
[New Thread 0x7fffc9b50700 (LWP 11861)]
[New Thread 0x7fffc9acf700 (LWP 11862)]
[New Thread 0x7fffc9a4e700 (LWP 11863)]
[New Thread 0x7fffc99cd700 (LWP 11864)]
[New Thread 0x7fffc994c700 (LWP 11865)]
[New Thread 0x7fffc98cb700 (LWP 11866)]
[New Thread 0x7fffc984a700 (LWP 11867)]
[New Thread 0x7fff67fff700 (LWP 11868)]
[New Thread 0x7fff54ff9700 (LWP 11869)]
[New Thread 0x7fff557fa700 (LWP 11870)]
[New Thread 0x7fff677fe700 (LWP 11871)]
[New Thread 0x7fff66ffd700 (LWP 11872)]
[New Thread 0x7fff667fc700 (LWP 11873)]
[New Thread 0x7fff65633700 (LWP 11874)]
[New Thread 0x7fff64e32700 (LWP 11875)]
[New Thread 0x7fff57fff700 (LWP 11876)]
[New Thread 0x7fff577fe700 (LWP 11877)]
[New Thread 0x7fff56ffd700 (LWP 11878)]
[Thread 0x7fffca3d2700 (LWP 11849) exited]
[Thread 0x7fff557fa700 (LWP 11870) exited]
[Thread 0x7fffc984a700 (LWP 11867) exited]
[Thread 0x7fffc98cb700 (LWP 11866) exited]
[Thread 0x7fffc994c700 (LWP 11865) exited]
[Thread 0x7fffc99cd700 (LWP 11864) exited]
[Thread 0x7fffc9a4e700 (LWP 11863) exited]
[Thread 0x7fffc9acf700 (LWP 11862) exited]
[Thread 0x7fffc9b50700 (LWP 11861) exited]
[Thread 0x7fffc9bd1700 (LWP 11860) exited]
[Thread 0x7fff677fe700 (LWP 11871) exited]
[Thread 0x7fff56ffd700 (LWP 11878) exited]
[Thread 0x7fff577fe700 (LWP 11877) exited]
[Thread 0x7fff57fff700 (LWP 11876) exited]
[Thread 0x7fff64e32700 (LWP 11875) exited]
[Thread 0x7fff65633700 (LWP 11874) exited]
[Thread 0x7fff667fc700 (LWP 11873) exited]
[Thread 0x7fff66ffd700 (LWP 11872) exited]
[Thread 0x7fff54ff9700 (LWP 11869) exited]
[Thread 0x7fff67fff700 (LWP 11868) exited]
[Thread 0x7fffd000e900 (LWP 11859) exited]
[Thread 0x7fffc87bd900 (LWP 11858) exited]
[Thread 0x7fffc87b1900 (LWP 11857) exited]
[Thread 0x7fffc87a5900 (LWP 11856) exited]
[Thread 0x7fffc8799900 (LWP 11855) exited]
[Thread 0x7fffc878d900 (LWP 11854) exited]
[Thread 0x7fffc8781900 (LWP 11853) exited]
[New Thread 0x7fff67fff700 (LWP 11901)]
[New Thread 0x7fff54ff9700 (LWP 11902)]
[Thread 0x7fff54ff9700 (LWP 11902) exited]
[New Thread 0x7fffd000e900 (LWP 11906)]
[New Thread 0x7fffc87bd900 (LWP 11907)]
[New Thread 0x7fffc87b1900 (LWP 11908)]
[New Thread 0x7fffc87a5900 (LWP 11909)]
[New Thread 0x7fffc8799900 (LWP 11910)]
[New Thread 0x7fffc878d900 (LWP 11911)]
[New Thread 0x7fffc8781900 (LWP 11912)]
[New Thread 0x7fffca3d2700 (LWP 11913)]
[New Thread 0x7fffca351700 (LWP 11914)]
[New Thread 0x7fffca2d0700 (LWP 11915)]
[New Thread 0x7fffca24f700 (LWP 11916)]
[New Thread 0x7fffca1ce700 (LWP 11917)]
[New Thread 0x7fffca14d700 (LWP 11918)]
[New Thread 0x7fffca0cc700 (LWP 11919)]
[New Thread 0x7fffca04b700 (LWP 11920)]
[New Thread 0x7fff54ff9700 (LWP 11921)]
[New Thread 0x7fff56ffd700 (LWP 11922)]
[New Thread 0x7fff577fe700 (LWP 11923)]
[New Thread 0x7fffc9fca700 (LWP 11924)]
[New Thread 0x7fff677fe700 (LWP 11925)]
[New Thread 0x7fff66ffd700 (LWP 11926)]
[New Thread 0x7fff667fc700 (LWP 11927)]
[New Thread 0x7fff65633700 (LWP 11928)]
[New Thread 0x7fff64e32700 (LWP 11929)]
[New Thread 0x7fff57fff700 (LWP 11930)]
[New Thread 0x7fff567fc700 (LWP 11931)]
[Thread 0x7fff67fff700 (LWP 11901) exited]
[Thread 0x7fff577fe700 (LWP 11923) exited]
[Thread 0x7fffca04b700 (LWP 11920) exited]
[Thread 0x7fff567fc700 (LWP 11931) exited]
[Thread 0x7fff57fff700 (LWP 11930) exited]
[Thread 0x7fff64e32700 (LWP 11929) exited]
[Thread 0x7fff65633700 (LWP 11928) exited]
[Thread 0x7fff667fc700 (LWP 11927) exited]
[Thread 0x7fff66ffd700 (LWP 11926) exited]
[Thread 0x7fff677fe700 (LWP 11925) exited]
[Thread 0x7fffc9fca700 (LWP 11924) exited]
[Thread 0x7fffca0cc700 (LWP 11919) exited]
[Thread 0x7fffca14d700 (LWP 11918) exited]
[Thread 0x7fffca1ce700 (LWP 11917) exited]
[Thread 0x7fffca24f700 (LWP 11916) exited]
[Thread 0x7fffca2d0700 (LWP 11915) exited]
[Thread 0x7fffca351700 (LWP 11914) exited]
[Thread 0x7fffca3d2700 (LWP 11913) exited]
[Thread 0x7fff56ffd700 (LWP 11922) exited]
[Thread 0x7fff54ff9700 (LWP 11921) exited]
[Thread 0x7fffc8781900 (LWP 11912) exited]
[Thread 0x7fffc878d900 (LWP 11911) exited]
[Thread 0x7fffc8799900 (LWP 11910) exited]
[Thread 0x7fffc87a5900 (LWP 11909) exited]
[Thread 0x7fffc87b1900 (LWP 11908) exited]
[Thread 0x7fffc87bd900 (LWP 11907) exited]
[Thread 0x7fffd000e900 (LWP 11906) exited]
[New Thread 0x7fff54ff9700 (LWP 11934)]
[New Thread 0x7fff56ffd700 (LWP 11935)]
[Thread 0x7fff56ffd700 (LWP 11935) exited]
[New Thread 0x7fffc8781900 (LWP 11936)]
[New Thread 0x7fffc878d900 (LWP 11937)]
[New Thread 0x7fffc8799900 (LWP 11938)]
[New Thread 0x7fffc87a5900 (LWP 11939)]
[New Thread 0x7fffc87b1900 (LWP 11940)]
[New Thread 0x7fffc87bd900 (LWP 11941)]
[New Thread 0x7fffd000e900 (LWP 11942)]
[New Thread 0x7fffca0cc700 (LWP 11943)]
[New Thread 0x7fffca14d700 (LWP 11944)]
[New Thread 0x7fffca1ce700 (LWP 11945)]
[New Thread 0x7fffca24f700 (LWP 11946)]
[New Thread 0x7fffca2d0700 (LWP 11947)]
[New Thread 0x7fffca351700 (LWP 11948)]
[New Thread 0x7fffca3d2700 (LWP 11949)]
[New Thread 0x7fffca04b700 (LWP 11950)]
[New Thread 0x7fff56ffd700 (LWP 11951)]
[New Thread 0x7fffc9fca700 (LWP 11952)]
[New Thread 0x7fff567fc700 (LWP 11953)]
[New Thread 0x7fff67fff700 (LWP 11954)]
[New Thread 0x7fff677fe700 (LWP 11955)]
[New Thread 0x7fff66ffd700 (LWP 11956)]
[New Thread 0x7fff667fc700 (LWP 11957)]
[New Thread 0x7fff65633700 (LWP 11958)]
[New Thread 0x7fff64e32700 (LWP 11959)]
[New Thread 0x7fff57fff700 (LWP 11960)]
[New Thread 0x7fff577fe700 (LWP 11961)]
[Thread 0x7fff54ff9700 (LWP 11934) exited]
[Thread 0x7fff567fc700 (LWP 11953) exited]
[Thread 0x7fffca04b700 (LWP 11950) exited]
[Thread 0x7fff577fe700 (LWP 11961) exited]
[Thread 0x7fff57fff700 (LWP 11960) exited]
[Thread 0x7fff64e32700 (LWP 11959) exited]
[Thread 0x7fff65633700 (LWP 11958) exited]
[Thread 0x7fff667fc700 (LWP 11957) exited]
[Thread 0x7fff66ffd700 (LWP 11956) exited]
[Thread 0x7fff677fe700 (LWP 11955) exited]
[Thread 0x7fff67fff700 (LWP 11954) exited]
[Thread 0x7fffca3d2700 (LWP 11949) exited]
[Thread 0x7fffca351700 (LWP 11948) exited]
[Thread 0x7fffca2d0700 (LWP 11947) exited]
[Thread 0x7fffca24f700 (LWP 11946) exited]
[Thread 0x7fffca1ce700 (LWP 11945) exited]
[Thread 0x7fffca14d700 (LWP 11944) exited]
[Thread 0x7fffca0cc700 (LWP 11943) exited]
[Thread 0x7fffc9fca700 (LWP 11952) exited]
[Thread 0x7fff56ffd700 (LWP 11951) exited]
[Thread 0x7fffd000e900 (LWP 11942) exited]
[Thread 0x7fffc87bd900 (LWP 11941) exited]
[Thread 0x7fffc87b1900 (LWP 11940) exited]
[Thread 0x7fffc87a5900 (LWP 11939) exited]
[Thread 0x7fffc8799900 (LWP 11938) exited]
[Thread 0x7fffc878d900 (LWP 11937) exited]
[Thread 0x7fffc8781900 (LWP 11936) exited]
[New Thread 0x7fff56ffd700 (LWP 11977)]
[New Thread 0x7fffc9fca700 (LWP 11979)]
[Thread 0x7fff56ffd700 (LWP 11977) exited]
[New Thread 0x7fffd000e900 (LWP 11980)]
[New Thread 0x7fffc87bd900 (LWP 11981)]
[New Thread 0x7fffc87b1900 (LWP 11982)]
[New Thread 0x7fffc87a5900 (LWP 11983)]
[New Thread 0x7fffc8799900 (LWP 11984)]
[New Thread 0x7fffc878d900 (LWP 11985)]
[New Thread 0x7fffc8781900 (LWP 11986)]
[New Thread 0x7fffca3d2700 (LWP 11987)]
[New Thread 0x7fffca351700 (LWP 11988)]
[New Thread 0x7fffca2d0700 (LWP 11989)]
[New Thread 0x7fffca24f700 (LWP 11990)]
[New Thread 0x7fffca1ce700 (LWP 11991)]
[New Thread 0x7fffca14d700 (LWP 11992)]
[New Thread 0x7fffca0cc700 (LWP 11993)]
[New Thread 0x7fffca04b700 (LWP 11994)]
[New Thread 0x7fff56ffd700 (LWP 11995)]
[New Thread 0x7fff67fff700 (LWP 11996)]
[New Thread 0x7fff577fe700 (LWP 11997)]
[New Thread 0x7fff677fe700 (LWP 11998)]

Thread 1 "ArdourGUI" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()

Thread 156 (Thread 0x7fff677fe700 (LWP 11998)):
#0  0x00007fffecb623bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fff677fdbb0, rem=0x7fff677fdbc0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007fffecb68047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2e8ba38 in g_usleep () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff6a3cfa9 in ARDOUR::AutomationWatch::thread (this=0x55555ff34000) at ../libs/ardour/automation_watch.cc:195
#4  0x00007ffff6a4277d in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x55555f9931a0, p=0x55555ff34000) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6a423c2 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x55555f9931b0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff6a41ae3 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x55555f9931a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff6a41a64 in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator() (this=0x55555f9931a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00007ffff6a412c2 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it (rep=0x55555f993170) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 155 (Thread 0x7fff577fe700 (LWP 11997)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555559ef8798) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555559ef8748, cond=0x555559ef8770) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555559ef8770, mutex=0x555559ef8748) at pthread_cond_wait.c:638
#3  0x00007ffff70a1837 in ARDOUR::Session::auto_connect_thread_run (this=0x555559ef67c0) at ../libs/ardour/session.cc:7207
#4  0x00007ffff70a135e in ARDOUR::Session::auto_connect_thread (arg=0x555559ef67c0) at ../libs/ardour/session.cc:7138
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 154 (Thread 0x7fff67fff700 (LWP 11996)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555559ef872c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555559ef86d8, cond=0x555559ef8700) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555559ef8700, mutex=0x555559ef86d8) at pthread_cond_wait.c:638
#3  0x00007ffff711cc07 in ARDOUR::Session::emit_thread_run (this=0x555559ef67c0) at ../libs/ardour/session_process.cc:1137
#4  0x00007ffff711cba4 in ARDOUR::Session::emit_thread (arg=0x555559ef67c0) at ../libs/ardour/session_process.cc:1126
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 153 (Thread 0x7fff56ffd700 (LWP 11995)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x7fff88001c30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2e5ad66 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2e5b0f2 in g_main_loop_run () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4094db4 in BaseUI::main_thread (this=0x555559581de0) at ../libs/pbd/base_ui.cc:101
#4  0x00007ffff4098f46 in sigc::bound_mem_functor0<void, BaseUI>::operator() (this=0x555565763478) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff4098b86 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x555565763470) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff40985c7 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x555565763440) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#9  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 152 (Thread 0x7fffca04b700 (LWP 11994)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x7fffca04a318, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff40aacee in CrossThreadChannel::poll_for_request (this=0x5555650039d8) at ../libs/pbd/crossthread.posix.cc:102
#2  0x00007ffff40aad57 in CrossThreadChannel::receive (this=0x5555650039d8, msg=@0x7fffca04a3ef: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:123
#3  0x00007ffff6a52abe in ARDOUR::Butler::thread_work (this=0x555565003940) at ../libs/ardour/butler.cc:185
#4  0x00007ffff6a5283f in ARDOUR::Butler::_thread_work (arg=0x555565003940) at ../libs/ardour/butler.cc:166
#5  0x00007ffff40ce0c4 in fake_thread_start (arg=0x55555ad35bc0) at ../libs/pbd/pthread_utils.cc:100
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 151 (Thread 0x7fffca0cc700 (LWP 11993)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555578432d8) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x5555578432d8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x555557843140) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x555557843140) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffca0cbcf8, p=0x555557843140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffca0cbd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffca0cbcf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffca0cbcf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555565064bd0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 150 (Thread 0x7fffca14d700 (LWP 11992)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555578432d8) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x5555578432d8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x555557843140) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x555557843140) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffca14ccf8, p=0x555557843140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffca14cd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffca14ccf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffca14ccf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555fe33510) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 149 (Thread 0x7fffca1ce700 (LWP 11991)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555578432d8) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x5555578432d8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x555557843140) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x555557843140) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffca1cdcf8, p=0x555557843140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffca1cdd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffca1cdcf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffca1cdcf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555565ba4fc0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 148 (Thread 0x7fffca24f700 (LWP 11990)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555578432d8) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x5555578432d8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x555557843140) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x555557843140) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffca24ecf8, p=0x555557843140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffca24ed08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffca24ecf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffca24ecf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555565069b50) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 147 (Thread 0x7fffca2d0700 (LWP 11989)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555557843300) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555557843300, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555557843300, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555557843300) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b82f54 in ARDOUR::Graph::reached_terminal_node (this=0x555557843140) at ../libs/ardour/graph.cc:301
#5  0x00007ffff6b8b15b in ARDOUR::GraphNode::finish (this=0x5555583aae10, chain=0) at ../libs/ardour/graphnode.cc:74
#6  0x00007ffff6b864f6 in ARDOUR::GraphNode::run (this=0x5555583aae10, chain=0) at ../libs/ardour/ardour/graphnode.h:65
#7  0x00007ffff6b83d34 in ARDOUR::Graph::run_one (this=0x555557843140) at ../libs/ardour/graph.cc:442
#8  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x555557843140) at ../libs/ardour/graph.cc:470
#9  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffca2cfcf8, p=0x555557843140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#10 0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffca2cfd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#11 0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffca2cfcf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#12 0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#13 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffca2cfcf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#14 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555565069c90) at ../libs/backends/jack/jack_audiobackend.cc:953
#15 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#16 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 146 (Thread 0x7fffca351700 (LWP 11988)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555578432d8) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x5555578432d8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x555557843140) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x555557843140) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffca350cf8, p=0x555557843140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffca350d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffca350cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffca350cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55556508ba20) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 145 (Thread 0x7fffca3d2700 (LWP 11987)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555578432d8) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x5555578432d8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x5555578432d8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x555557843140) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b84460 in ARDOUR::Graph::main_thread (this=0x555557843140) at ../libs/ardour/graph.cc:523
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffca3d1cf8, p=0x555557843140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffca3d1d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffca3d1cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffca3d1cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555ad7b350) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 144 (Thread 0x7fffc8781900 (LWP 11986)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555559f77890) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555559f77890) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 143 (Thread 0x7fffc878d900 (LWP 11985)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555559f77890) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555559f77890) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 142 (Thread 0x7fffc8799900 (LWP 11984)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555559f77890) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555559f77890) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 141 (Thread 0x7fffc87a5900 (LWP 11983)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555559f77890) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555559f77890) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 140 (Thread 0x7fffc87b1900 (LWP 11982)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555559f77890) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555559f77890) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 139 (Thread 0x7fffc87bd900 (LWP 11981)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555559f77890) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555559f77890) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 138 (Thread 0x7fffd000e900 (LWP 11980)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555559f77890) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555559f77890, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555559f77890) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555559f77860) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 137 (Thread 0x7fffc9fca700 (LWP 11979)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabf61 in g_cond_wait_until () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2e263fb in g_async_queue_timeout_pop () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2e8aa14 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffc8f82700 (LWP 11790)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffd00ee5bc in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd00ee6c5 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd00d4b79 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd00d3463 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffcbbcef06 in WJACK_cycle_wait (client=0x5555575e5cd0) at ../libs/backends/jack/weak_libjack.def:95
#6  0x00007fffcbbaa8a8 in ARDOUR::JACKAudioBackend::process_thread (this=0x555557b9c000) at ../libs/backends/jack/jack_audiobackend.cc:982
#7  0x00007fffcbbaa830 in ARDOUR::JACKAudioBackend::_process_thread (arg=0x555557b9c000) at ../libs/backends/jack/jack_audiobackend.cc:961
#8  0x00007fffd00d33c7 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#9  0x00007fffd00ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fffca453700 (LWP 11789)):
#0  __libc_read (nbytes=4, buf=0x7fffca452b80, fd=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __libc_read (fd=16, buf=0x7fffca452b80, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fffd00edb12 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd00f29ed in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd00ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fffca648700 (LWP 11788)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5555584c7018) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555584c6fc0, cond=0x5555584c6ff0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5555584c6ff0, mutex=0x5555584c6fc0) at pthread_cond_wait.c:638
#3  0x00007fffd00ed382 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd00e4dfd in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffd00ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fffcae49700 (LWP 11785)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x5555576c63c0, nfds=2, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2e5ad66 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2e5ae7c in g_main_context_iteration () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2e5aec1 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffd1601700 (LWP 11777)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69dca8a in ARDOUR::AudioEngine::do_devicelist_update (this=0x555557aab480) at ../libs/ardour/audioengine.cc:720
#3  0x00007ffff69eaf45 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555579dbea0, p=0x555557aab480) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69ea8ec in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555579dbeb0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff69e9f59 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555579dbea0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff69e95ec in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x5555579dbea0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff69e8668 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it (rep=0x5555579dbe70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fffd3de5700 (LWP 11776)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69dc84b in ARDOUR::AudioEngine::do_reset_backend (this=0x555557aab480) at ../libs/ardour/audioengine.cc:684
#3  0x00007ffff69eaf45 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555579dbf40, p=0x555557aab480) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69ea8ec in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555579dbf50, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff69e9f59 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555579dbf40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff69e95ec in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x5555579dbf40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff69e8668 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it (rep=0x5555579dbf10) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffe6a4c700 (LWP 11774)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69901cc in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:93
#3  0x00007ffff698ffb8 in analyser_work () at ../libs/ardour/analyser.cc:58
#4  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555557391788) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555557391780) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555557391750) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#9  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffe724d700 (LWP 11773)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71b3134 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x5555573803d8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555573803d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555573803a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#8  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffe7a4e700 (LWP 11772)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71b3134 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555557380508) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555557380500) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555573804d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#8  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fffe824f700 (LWP 11771)):
#0  0x00007fffecb623bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffe824ebf0, rem=0x7fffe824ec00) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007fffecb68047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2e8ba38 in g_usleep () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00005555568e303c in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffe8e2c900 (LWP 11767)):
#0  0x0000000000000000 in ?? ()
#1  0x00007ffff4ba7581 in ArdourCanvas::Item::bounding_box (this=0x555560221af0, for_own_purposes=false) at ../libs/canvas/item.cc:585
#2  0x00007ffff4ba6b89 in ArdourCanvas::Item::set_position (this=0x555560221af0, p=...) at ../libs/canvas/item.cc:262
#3  0x00007ffff4ba6cc2 in ArdourCanvas::Item::set_x_position (this=0x555560221af0, x=-3) at ../libs/canvas/item.cc:291
#4  0x000055555620a514 in ArdourMarker::set_position (this=0x555565e83c90, sample=0) at ../gtk2_ardour/marker.cc:536
#5  0x000055555620a558 in ArdourMarker::reposition (this=0x555565e83c90) at ../gtk2_ardour/marker.cc:544
#6  0x000055555620db52 in sigc::bound_mem_functor0<void, ArdourMarker>::operator() (this=0x55555fa0b288) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#7  0x000055555620d484 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourMarker> >::operator() (this=0x55555fa0b280) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x000055555620c9df in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourMarker>, void>::call_it (rep=0x55555fa0b250) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x0000555555c2b3fe in sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0x55555a3326d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:772
#10 0x0000555555c35de6 in sigc::signal0<void, sigc::nil>::emit (this=0x5555581147d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2679
#11 0x0000555555c2f444 in sigc::signal0<void, sigc::nil>::operator() (this=0x5555581147d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2687
#12 0x0000555555dc7725 in Editor::on_samples_per_pixel_changed (this=0x5555581144f0) at ../gtk2_ardour/editor.cc:4637
#13 0x0000555555dc7a6e in Editor::visual_changer (this=0x5555581144f0, vc=...) at ../gtk2_ardour/editor.cc:4761
#14 0x0000555555dc797e in Editor::idle_visual_changer (this=0x5555581144f0) at ../gtk2_ardour/editor.cc:4726
#15 0x0000555555dc7896 in Editor::_idle_visual_changer (arg=0x5555581144f0) at ../gtk2_ardour/editor.cc:4684
#16 0x00007ffff2e5aa2a in g_main_context_dispatch () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#17 0x00007ffff2e5add0 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#18 0x00007ffff2e5ae7c in g_main_context_iteration () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#19 0x00007ffff244b601 in gtk_main_iteration () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#20 0x00007ffff447a929 in Gtkmm2ext::UI::flush_pending (this=0x555557ae2700, timeout=10) at ../libs/gtkmm2ext/gtk_ui.cc:781
#21 0x0000555555cb6fe0 in ARDOUR_UI::load_session_stage_two (this=0x555557ae2700, path="/home/alfh/Radio/Kirken som tilfluktssted/Radioserie lydklipp/1994-02-17 Dagsnytt 18", snap_name="1994-02-17 Dagsnytt 18", mix_template="") at ../gtk2_ardour/ardour_ui_session.cc:529
#22 0x0000555555cb6577 in ARDOUR_UI::load_session (this=0x555557ae2700, path="/home/alfh/Radio/Kirken som tilfluktssted/Radioserie lydklipp/1994-02-17 Dagsnytt 18", snap_name="1994-02-17 Dagsnytt 18", mix_template="") at ../gtk2_ardour/ardour_ui_session.cc:360
#23 0x0000555555cb5e8d in ARDOUR_UI::session_dialog_response_handler (this=0x555557ae2700, response=-3, session_dialog=0x55556019d290) at ../gtk2_ardour/ardour_ui_session.cc:293
#24 0x0000555555cc22b6 in sigc::bound_mem_functor2<void, ARDOUR_UI, int, SessionDialog*>::operator() (this=0x55555c6267c0, _A_a1=@0x7fffffffc0cc: -3, _A_a2=@0x55555c6267e0: 0x55556019d290) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1927
#25 0x0000555555cc1679 in sigc::adaptor_functor<sigc::bound_mem_functor2<void, ARDOUR_UI, int, SessionDialog*> >::operator()<int const&, SessionDialog*&> (this=0x55555c6267b8, _A_arg1=@0x7fffffffc0cc: -3, _A_arg2=@0x55555c6267e0: 0x55556019d290) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#26 0x0000555555cc0898 in sigc::bind_functor<-1, sigc::bound_mem_functor2<void, ARDOUR_UI, int, SessionDialog*>, SessionDialog*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<int const&> (this=0x55555c6267b0, _A_arg1=@0x7fffffffc0cc: -3) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1135
#27 0x0000555555cbfde4 in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, ARDOUR_UI, int, SessionDialog*>, SessionDialog*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void, int>::call_it (rep=0x55555c626780, a_1=@0x7fffffffc0cc: -3) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:137
#28 0x00007ffff05ae5f5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libgtkmm-2.4.so.1
#29 0x00007ffff3169945 in g_closure_invoke () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#30 0x00007ffff317b01b in ?? () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#31 0x00007ffff3184c30 in g_signal_emit_valist () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#32 0x00007ffff3185082 in g_signal_emit () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#33 0x00007ffff23a980c in gtk_dialog_response () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#34 0x00005555566d3716 in SessionDialog::open_button_pressed (this=0x55556019d290, ev=0x55555bb18350) at ../gtk2_ardour/session_dialog.cc:540
#35 0x00005555566dddc4 in sigc::bound_mem_functor1<bool, SessionDialog, _GdkEventButton*>::operator() (this=0x55555ff10938, _A_a1=@0x7fffffffc5e8: 0x55555bb18350) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1856
#36 0x00005555566dc495 in sigc::adaptor_functor<sigc::bound_mem_functor1<bool, SessionDialog, _GdkEventButton*> >::operator()<_GdkEventButton* const&> (this=0x55555ff10930, _A_arg1=@0x7fffffffc5e8: 0x55555bb18350) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#37 0x00005555566db15c in sigc::internal::slot_call1<sigc::bound_mem_functor1<bool, SessionDialog, _GdkEventButton*>, bool, _GdkEventButton*>::call_it (rep=0x55555ff10900, a_1=@0x7fffffffc5e8: 0x55555bb18350) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:137
#38 0x00007ffff0633a9b in ?? () from /opt/Ardour-6.8.209-dbg/lib/libgtkmm-2.4.so.1
#39 0x00007ffff244dcac in ?? () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#40 0x00007ffff3169945 in g_closure_invoke () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#41 0x00007ffff317abf2 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#42 0x00007ffff318469b in g_signal_emit_valist () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#43 0x00007ffff3185082 in g_signal_emit () from /opt/Ardour-6.8.209-dbg/lib/libgobject-2.0.so.0
#44 0x00007ffff25d264c in ?? () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#45 0x00007ffff244c29d in gtk_propagate_event () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#46 0x00007ffff244c723 in gtk_main_do_event () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#47 0x00007ffff2068b4c in ?? () from /opt/Ardour-6.8.209-dbg/lib/libgdk-x11-2.0.so.0
#48 0x00007ffff2e5ab67 in g_main_context_dispatch () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#49 0x00007ffff2e5add0 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#50 0x00007ffff2e5b0f2 in g_main_loop_run () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#51 0x00007ffff244b3e7 in gtk_main () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#52 0x00007ffff447811c in Gtkmm2ext::UI::run (this=0x555557ae2700, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:310
#53 0x00005555562051a1 in main (argc=1, argv=0x7fffffffd118) at ../gtk2_ardour/main.cc:422
gdb-ardour-03.txt (60,983 bytes)   

al f

2021-07-26 11:26

reporter   ~0026080

I also got crashes on SCROLL-TO-ZOOM in the navigator panel at the bottom of the screen.

I reproduced the crash by splitting a region in track 2, moving the left part of the split region to track 1 (drag and drop) and then using the scroll wheel (UP) to zoom in for editing.

Attached here is the gdb output for that.
gdb-ardour-06-scroll-to-zoom.txt (58,039 bytes)   
Starting program: /opt/Ardour-6.8.209-dbg/bin/ardour-6.8.209 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe824f700 (LWP 7560)]
[New Thread 0x7fffe7a4e700 (LWP 7561)]
[New Thread 0x7fffe724d700 (LWP 7562)]
[New Thread 0x7fffe6a4c700 (LWP 7563)]
[New Thread 0x7fffd7de5700 (LWP 7564)]
[Thread 0x7fffd7de5700 (LWP 7564) exited]
[New Thread 0x7fffd7de5700 (LWP 7565)]
[New Thread 0x7fffd5601700 (LWP 7566)]
[New Thread 0x7fffcb97d700 (LWP 7567)]
[New Thread 0x7fffcaeca700 (LWP 7568)]
[New Thread 0x7fffcae49700 (LWP 7569)]
[New Thread 0x7fffca648700 (LWP 7570)]
[New Thread 0x7fffca453700 (LWP 7571)]
[Thread 0x7fffca453700 (LWP 7571) exited]
[Thread 0x7fffca648700 (LWP 7570) exited]
[New Thread 0x7fffca648700 (LWP 7572)]
[New Thread 0x7fffca453700 (LWP 7573)]
[Thread 0x7fffca453700 (LWP 7573) exited]
[Thread 0x7fffca648700 (LWP 7572) exited]
[New Thread 0x7fffca3d2700 (LWP 7574)]
[New Thread 0x7fffc9bd1700 (LWP 7575)]
[New Thread 0x7fffc93d0700 (LWP 7576)]
[Thread 0x7fffcae49700 (LWP 7569) exited]
[Thread 0x7fffcaeca700 (LWP 7568) exited]
[Thread 0x7fffc9bd1700 (LWP 7575) exited]
[Thread 0x7fffcb97d700 (LWP 7567) exited]
[New Thread 0x7fffca648700 (LWP 7578)]
[New Thread 0x7fffca453700 (LWP 7579)]
[New Thread 0x7fffc8781700 (LWP 7580)]
[New Thread 0x7fffc9bd1700 (LWP 7581)]
[Detaching after vfork from child process 7582]
[Thread 0x7fffc9bd1700 (LWP 7581) exited]
[New Thread 0x7fffc9bd1700 (LWP 7583)]
[Thread 0x7fffc9bd1700 (LWP 7583) exited]
[Detaching after vfork from child process 7584]
[New Thread 0x7fffc9bd1700 (LWP 7585)]
[Thread 0x7fffc9bd1700 (LWP 7585) exited]
[New Thread 0x7fffc9bd1700 (LWP 7586)]
[New Thread 0x7fffd400e900 (LWP 7587)]
[New Thread 0x7fffc803d900 (LWP 7588)]
[New Thread 0x7fffc8031900 (LWP 7589)]
[New Thread 0x7fffc8025900 (LWP 7590)]
[New Thread 0x7fffc8019900 (LWP 7591)]
[New Thread 0x7fffc800d900 (LWP 7592)]
[New Thread 0x7fffaec19900 (LWP 7593)]
[New Thread 0x7fffaec0e700 (LWP 7594)]
[New Thread 0x7fffaeb8d700 (LWP 7595)]
[New Thread 0x7fffaeb0c700 (LWP 7596)]
[New Thread 0x7fffaea8b700 (LWP 7597)]
[New Thread 0x7fffaea0a700 (LWP 7598)]
[New Thread 0x7fffae989700 (LWP 7599)]
[New Thread 0x7fffae908700 (LWP 7600)]
[New Thread 0x7fffae887700 (LWP 7601)]
[New Thread 0x7fffcae49700 (LWP 7602)]
[Thread 0x7fffc93d0700 (LWP 7576) exited]
[New Thread 0x7fffc93d0700 (LWP 7603)]
[New Thread 0x7fffa19a0700 (LWP 7604)]
[New Thread 0x7fffa119f700 (LWP 7605)]
[New Thread 0x7fff5bfff700 (LWP 7606)]
[New Thread 0x7fff5b7fe700 (LWP 7607)]
[New Thread 0x7fff5affd700 (LWP 7608)]
[New Thread 0x7fff5a7fc700 (LWP 7609)]
[New Thread 0x7fff59ffb700 (LWP 7610)]
[New Thread 0x7fff597fa700 (LWP 7611)]
[New Thread 0x7fff58ff9700 (LWP 7612)]
[Thread 0x7fffc9bd1700 (LWP 7586) exited]

Thread 1 "ArdourGUI" received signal SIGSEGV, Segmentation fault.
0x0000555555e52fe8 in ArdourCanvas::Item::position (this=0x4052c80000000000) at ../libs/canvas/canvas/item.h:140
140	../libs/canvas/canvas/item.h: No such file or directory.

Thread 51 (Thread 0x7fff58ff9700 (LWP 7612)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x5555601434d8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555601434d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555601434a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 50 (Thread 0x7fff597fa700 (LWP 7611)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55556013a248) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55556013a240) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55556013a210) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 49 (Thread 0x7fff59ffb700 (LWP 7610)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x5555601431a8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555601431a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555560143170) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 48 (Thread 0x7fff5a7fc700 (LWP 7609)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555565472b48) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555565472b40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555565472b10) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 47 (Thread 0x7fff5affd700 (LWP 7608)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55556013a088) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55556013a080) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55556013a050) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 46 (Thread 0x7fff5b7fe700 (LWP 7607)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555565eabf08) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555565eabf00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555565eabed0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 45 (Thread 0x7fff5bfff700 (LWP 7606)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556016cfb0) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555565c60ed8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555565c60ed0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555565c60ea0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 44 (Thread 0x7fffa119f700 (LWP 7605)):
#0  0x00007fffecb623bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffa119ebb0, rem=0x7fffa119ebc0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007fffecb68047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2e8ba38 in g_usleep () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff6a3cfa9 in ARDOUR::AutomationWatch::thread (this=0x55555730c470) at ../libs/ardour/automation_watch.cc:195
#4  0x00007ffff6a4277d in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x55555c76f8e0, p=0x55555730c470) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6a423c2 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x55555c76f8f0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff6a41ae3 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x55555c76f8e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff6a41a64 in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator() (this=0x55555c76f8e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00007ffff6a412c2 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it (rep=0x55555c76f8b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 43 (Thread 0x7fffa19a0700 (LWP 7604)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5555584edfe8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555584edf98, cond=0x5555584edfc0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5555584edfc0, mutex=0x5555584edf98) at pthread_cond_wait.c:638
#3  0x00007ffff70a1837 in ARDOUR::Session::auto_connect_thread_run (this=0x5555584ec010) at ../libs/ardour/session.cc:7207
#4  0x00007ffff70a135e in ARDOUR::Session::auto_connect_thread (arg=0x5555584ec010) at ../libs/ardour/session.cc:7138
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 42 (Thread 0x7fffc93d0700 (LWP 7603)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5555584edf7c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555584edf28, cond=0x5555584edf50) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5555584edf50, mutex=0x5555584edf28) at pthread_cond_wait.c:638
#3  0x00007ffff711cc07 in ARDOUR::Session::emit_thread_run (this=0x5555584ec010) at ../libs/ardour/session_process.cc:1137
#4  0x00007ffff711cba4 in ARDOUR::Session::emit_thread (arg=0x5555584ec010) at ../libs/ardour/session_process.cc:1126
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 41 (Thread 0x7fffcae49700 (LWP 7602)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x7fff5c17a830, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2e5ad66 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2e5b0f2 in g_main_loop_run () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4094db4 in BaseUI::main_thread (this=0x555558a51010) at ../libs/pbd/base_ui.cc:101
#4  0x00007ffff4098f46 in sigc::bound_mem_functor0<void, BaseUI>::operator() (this=0x555559c9eaa8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff4098b86 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x555559c9eaa0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff40985c7 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x555559c9ea70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#9  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 40 (Thread 0x7fffae887700 (LWP 7601)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x7fffae886318, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff40aacee in CrossThreadChannel::poll_for_request (this=0x555558243738) at ../libs/pbd/crossthread.posix.cc:102
#2  0x00007ffff40aad57 in CrossThreadChannel::receive (this=0x555558243738, msg=@0x7fffae8863ef: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:123
#3  0x00007ffff6a52abe in ARDOUR::Butler::thread_work (this=0x5555582436a0) at ../libs/ardour/butler.cc:185
#4  0x00007ffff6a5283f in ARDOUR::Butler::_thread_work (arg=0x5555582436a0) at ../libs/ardour/butler.cc:166
#5  0x00007ffff40ce0c4 in fake_thread_start (arg=0x555559c9e100) at ../libs/pbd/pthread_utils.cc:100
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 39 (Thread 0x7fffae908700 (LWP 7600)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555cd5cf18) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555cd5cf18) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffae907cf8, p=0x55555cd5cd80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffae907d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffae907cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffae907cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555584de550) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 38 (Thread 0x7fffae989700 (LWP 7599)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555cd5cf18) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555cd5cf18) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffae988cf8, p=0x55555cd5cd80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffae988d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffae988cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffae988cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555584de3a0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 37 (Thread 0x7fffaea0a700 (LWP 7598)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555cd5cf18) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555cd5cf18) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaea09cf8, p=0x55555cd5cd80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaea09d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaea09cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaea09cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555558769870) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 36 (Thread 0x7fffaea8b700 (LWP 7597)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555cd5cf18) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555cd5cf18) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaea8acf8, p=0x55555cd5cd80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaea8ad08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaea8acf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaea8acf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555558a18a40) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7fffaeb0c700 (LWP 7596)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555cd5cf18) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555cd5cf18) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaeb0bcf8, p=0x55555cd5cd80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaeb0bd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaeb0bcf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaeb0bcf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555584e6ca0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7fffaeb8d700 (LWP 7595)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555cd5cf18) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555cd5cf18, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555cd5cf18) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaeb8ccf8, p=0x55555cd5cd80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaeb8cd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaeb8ccf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaeb8ccf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555558aa5f40) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7fffaec0e700 (LWP 7594)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555cd5cf40) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555cd5cf40, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555cd5cf40, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555cd5cf40) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b82f54 in ARDOUR::Graph::reached_terminal_node (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:301
#5  0x00007ffff6b8b15b in ARDOUR::GraphNode::finish (this=0x55555f928430, chain=0) at ../libs/ardour/graphnode.cc:74
#6  0x00007ffff6b864f6 in ARDOUR::GraphNode::run (this=0x55555f928430, chain=0) at ../libs/ardour/ardour/graphnode.h:65
#7  0x00007ffff6b83d34 in ARDOUR::Graph::run_one (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:442
#8  0x00007ffff6b84460 in ARDOUR::Graph::main_thread (this=0x55555cd5cd80) at ../libs/ardour/graph.cc:523
#9  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaec0dcf8, p=0x55555cd5cd80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#10 0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaec0dd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#11 0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaec0dcf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#12 0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#13 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaec0dcf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#14 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555587679a0) at ../libs/backends/jack/jack_audiobackend.cc:953
#15 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#16 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7fffaec19900 (LWP 7593)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fffbc003850) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x7fffbc003850) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fffc800d900 (LWP 7592)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fffbc003850) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x7fffbc003850) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fffc8019900 (LWP 7591)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fffbc003850) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x7fffbc003850) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fffc8025900 (LWP 7590)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fffbc003850) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x7fffbc003850) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fffc8031900 (LWP 7589)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fffbc003850) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x7fffbc003850) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fffc803d900 (LWP 7588)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fffbc003850) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x7fffbc003850) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fffd400e900 (LWP 7587)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fffbc003850) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x7fffbc003850, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x7fffbc003850) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x7fffbc003820) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffc8781700 (LWP 7580)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffd40ee5bc in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd40ee6c5 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd40d4b79 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd40d3463 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffcbbcef06 in WJACK_cycle_wait (client=0x555557686800) at ../libs/backends/jack/weak_libjack.def:95
#6  0x00007fffcbbaa8a8 in ARDOUR::JACKAudioBackend::process_thread (this=0x555557be3040) at ../libs/backends/jack/jack_audiobackend.cc:982
#7  0x00007fffcbbaa830 in ARDOUR::JACKAudioBackend::_process_thread (arg=0x555557be3040) at ../libs/backends/jack/jack_audiobackend.cc:961
#8  0x00007fffd40d33c7 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#9  0x00007fffd40ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fffca453700 (LWP 7579)):
#0  __libc_read (nbytes=4, buf=0x7fffca452b80, fd=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __libc_read (fd=16, buf=0x7fffca452b80, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fffd40edb12 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd40f29ed in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd40ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fffca648700 (LWP 7578)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5555578b1e28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555578b1dd0, cond=0x5555578b1e00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5555578b1e00, mutex=0x5555578b1dd0) at pthread_cond_wait.c:638
#3  0x00007fffd40ed382 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd40e4dfd in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffd40ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fffca3d2700 (LWP 7574)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x5555576c6730, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2e5ad66 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2e5ae7c in g_main_context_iteration () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2e5aec1 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffd5601700 (LWP 7566)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69dca8a in ARDOUR::AudioEngine::do_devicelist_update (this=0x555557aab7b0) at ../libs/ardour/audioengine.cc:720
#3  0x00007ffff69eaf45 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555579dc870, p=0x555557aab7b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69ea8ec in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555579dc880, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff69e9f59 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555579dc870) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff69e95ec in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x5555579dc870) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff69e8668 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it (rep=0x5555579dc840) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fffd7de5700 (LWP 7565)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69dc84b in ARDOUR::AudioEngine::do_reset_backend (this=0x555557aab7b0) at ../libs/ardour/audioengine.cc:684
#3  0x00007ffff69eaf45 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555579dcc10, p=0x555557aab7b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69ea8ec in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555579dcc20, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff69e9f59 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555579dcc10) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff69e95ec in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x5555579dcc10) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff69e8668 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it (rep=0x5555579dcbe0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffe6a4c700 (LWP 7563)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69901cc in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:93
#3  0x00007ffff698ffb8 in analyser_work () at ../libs/ardour/analyser.cc:58
#4  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555557381738) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555557381730) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555557381700) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#9  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffe724d700 (LWP 7562)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71b3134 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55555739f5a8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55555739f5a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55555739f570) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#8  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffe7a4e700 (LWP 7561)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71b3134 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555557381868) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555557381860) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555557381830) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#8  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fffe824f700 (LWP 7560)):
#0  0x00007fffecb623bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffe824ebf0, rem=0x7fffe824ec00) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007fffecb68047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2e8ba38 in g_usleep () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00005555568e303c in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffe8e2c900 (LWP 7556)):
#0  0x0000555555e52fe8 in ArdourCanvas::Item::position (this=0x4052c80000000000) at ../libs/canvas/canvas/item.h:140
#1  0x00007ffff4ba64e1 in ArdourCanvas::Item::position_offset (this=0x55556046a720) at ../libs/canvas/item.cc:164
#2  0x00007ffff4ba65b6 in ArdourCanvas::Item::item_to_canvas (this=0x55556046a720, d=...) at ../libs/canvas/item.cc:180
#3  0x00007ffff4ba6339 in ArdourCanvas::Item::canvas_origin (this=0x55556046a720) at ../libs/canvas/item.cc:125
#4  0x0000555556209b60 in ArdourMarker::setup_line (this=0x55556036f000) at ../gtk2_ardour/marker.cc:407
#5  0x000055555620a520 in ArdourMarker::set_position (this=0x55556036f000, sample=279427) at ../gtk2_ardour/marker.cc:537
#6  0x000055555620a558 in ArdourMarker::reposition (this=0x55556036f000) at ../gtk2_ardour/marker.cc:544
#7  0x000055555620db52 in sigc::bound_mem_functor0<void, ArdourMarker>::operator() (this=0x55556046f3e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#8  0x000055555620d484 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourMarker> >::operator() (this=0x55556046f3e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#9  0x000055555620c9df in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourMarker>, void>::call_it (rep=0x55556046f3b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0x0000555555c2b3fe in sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0x55555bd1d430) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:772
#11 0x0000555555c35de6 in sigc::signal0<void, sigc::nil>::emit (this=0x5555582269f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2679
#12 0x0000555555c2f444 in sigc::signal0<void, sigc::nil>::operator() (this=0x5555582269f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2687
#13 0x0000555555dc7725 in Editor::on_samples_per_pixel_changed (this=0x555558226710) at ../gtk2_ardour/editor.cc:4637
#14 0x0000555555dc7a6e in Editor::visual_changer (this=0x555558226710, vc=...) at ../gtk2_ardour/editor.cc:4761
#15 0x0000555555dc797e in Editor::idle_visual_changer (this=0x555558226710) at ../gtk2_ardour/editor.cc:4726
#16 0x0000555555dc7896 in Editor::_idle_visual_changer (arg=0x555558226710) at ../gtk2_ardour/editor.cc:4684
#17 0x00007ffff2e5aa2a in g_main_context_dispatch () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#18 0x00007ffff2e5add0 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#19 0x00007ffff2e5b0f2 in g_main_loop_run () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#20 0x00007ffff244b3e7 in gtk_main () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#21 0x00007ffff447811c in Gtkmm2ext::UI::run (this=0x555557ae26f0, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:310
#22 0x00005555562051a1 in main (argc=1, argv=0x7fffffffd158) at ../gtk2_ardour/main.cc:422

paul

2021-07-26 13:51

administrator   ~0026082

You had already used some region cue markers?

al f

2021-07-26 14:47

reporter   ~0026083

Yes, I've used a few - less than five I think (I am away from session right now, so can't check exact number [is there a way to do that?])

al f

2021-08-01 09:54

reporter   ~0026085

I was working on a new session that didn't have any crashing problems, when I added some region cue markers and removed one track. The removed track was empty.

After that, Ardour started crashing on navigation in the summary (navigation bar at the bottom of the screen).

 I'm adding the debug info from reproducing the crash. I'm no programmer, but it seems to me that that introducing region cue markers to the session induced the crashes.
gdb-ardour-06.txt (57,922 bytes)   
Starting program: /opt/Ardour-6.8.209-dbg/bin/ardour-6.8.209 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe824f700 (LWP 33823)]
[New Thread 0x7fffe7a4e700 (LWP 33824)]
[New Thread 0x7fffe724d700 (LWP 33825)]
[New Thread 0x7fffe6a4c700 (LWP 33826)]
[New Thread 0x7fffd7de5700 (LWP 33827)]
[Thread 0x7fffd7de5700 (LWP 33827) exited]
[New Thread 0x7fffd7de5700 (LWP 33828)]
[New Thread 0x7fffd5601700 (LWP 33829)]
[New Thread 0x7fffcb97d700 (LWP 33830)]
[New Thread 0x7fffcaeca700 (LWP 33831)]
[New Thread 0x7fffcae49700 (LWP 33832)]
[New Thread 0x7fffca648700 (LWP 33833)]
[New Thread 0x7fffca453700 (LWP 33834)]
[Thread 0x7fffca453700 (LWP 33834) exited]
[Thread 0x7fffca648700 (LWP 33833) exited]
[New Thread 0x7fffca648700 (LWP 33835)]
[New Thread 0x7fffca453700 (LWP 33836)]
[Thread 0x7fffca453700 (LWP 33836) exited]
[Thread 0x7fffca648700 (LWP 33835) exited]
[New Thread 0x7fffca3d2700 (LWP 33837)]
[New Thread 0x7fffc9bd1700 (LWP 33838)]
[New Thread 0x7fffc93d0700 (LWP 33839)]
[Thread 0x7fffcae49700 (LWP 33832) exited]
[Thread 0x7fffc93d0700 (LWP 33839) exited]
[Thread 0x7fffcaeca700 (LWP 33831) exited]
[Thread 0x7fffcb97d700 (LWP 33830) exited]
[New Thread 0x7fffca648700 (LWP 33840)]
[New Thread 0x7fffca453700 (LWP 33841)]
[New Thread 0x7fffc8781700 (LWP 33842)]
[New Thread 0x7fffc93d0700 (LWP 33843)]
[Detaching after vfork from child process 33844]
[Thread 0x7fffc9bd1700 (LWP 33838) exited]
[New Thread 0x7fffc9bd1700 (LWP 33845)]
[Thread 0x7fffc9bd1700 (LWP 33845) exited]
[Detaching after vfork from child process 33846]
[New Thread 0x7fffc9bd1700 (LWP 33847)]
[Thread 0x7fffc9bd1700 (LWP 33847) exited]
[New Thread 0x7fffc9bd1700 (LWP 33851)]
[New Thread 0x7fffd4011900 (LWP 33852)]
[New Thread 0x7fffc803d900 (LWP 33853)]
[New Thread 0x7fffc8031900 (LWP 33854)]
[New Thread 0x7fffc8025900 (LWP 33855)]
[New Thread 0x7fffc8019900 (LWP 33856)]
[New Thread 0x7fffc800d900 (LWP 33857)]
[New Thread 0x7fffaec19900 (LWP 33858)]
[New Thread 0x7fffaec0e700 (LWP 33859)]
[New Thread 0x7fffaeb8d700 (LWP 33860)]
[New Thread 0x7fffaeb0c700 (LWP 33861)]
[New Thread 0x7fffaea8b700 (LWP 33862)]
[New Thread 0x7fffaea0a700 (LWP 33863)]
[New Thread 0x7fffae989700 (LWP 33864)]
[New Thread 0x7fffae908700 (LWP 33865)]
[New Thread 0x7fffae887700 (LWP 33866)]
[New Thread 0x7fffcae49700 (LWP 33867)]
[Thread 0x7fffc93d0700 (LWP 33843) exited]
[New Thread 0x7fffc93d0700 (LWP 33868)]
[New Thread 0x7fffad003700 (LWP 33869)]
[New Thread 0x7fffac802700 (LWP 33870)]
[New Thread 0x7fffa15a0700 (LWP 33871)]
[New Thread 0x7fffa0d9f700 (LWP 33872)]
[New Thread 0x7fff53fff700 (LWP 33873)]
[New Thread 0x7fff537fe700 (LWP 33874)]
[New Thread 0x7fff52ffd700 (LWP 33875)]
[New Thread 0x7fff527fc700 (LWP 33876)]
[New Thread 0x7fff51ffb700 (LWP 33877)]
[Thread 0x7fffc9bd1700 (LWP 33851) exited]

Thread 1 "ArdourGUI" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()

Thread 51 (Thread 0x7fff51ffb700 (LWP 33877)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555560fbcc58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555560fbcc50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555560fbcc20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 50 (Thread 0x7fff527fc700 (LWP 33876)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555560c763e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555560c763e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555560c763b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 49 (Thread 0x7fff52ffd700 (LWP 33875)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x555560cab5f8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555560cab5f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555560cab5c0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 48 (Thread 0x7fff537fe700 (LWP 33874)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x5555599e3eb8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555599e3eb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555599e3e80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 47 (Thread 0x7fff53fff700 (LWP 33873)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x5555599fb208) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555599fb200) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555599fb1d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 46 (Thread 0x7fffa0d9f700 (LWP 33872)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55555fd88d88) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55555fd88d80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55555fd88d50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 45 (Thread 0x7fffa15a0700 (LWP 33871)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b3967f in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7b39603 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff7b39a85 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x555557797530) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff7b39a2c in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55555fc30d08) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55555fc30d00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55555fc30cd0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 44 (Thread 0x7fffac802700 (LWP 33870)):
#0  0x00007fffecb623bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffac801bb0, rem=0x7fffac801bc0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007fffecb68047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2e8ba38 in g_usleep () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff6a3cfa9 in ARDOUR::AutomationWatch::thread (this=0x55555ccf5120) at ../libs/ardour/automation_watch.cc:195
#4  0x00007ffff6a4277d in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x55555b4ea3d0, p=0x55555ccf5120) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6a423c2 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x55555b4ea3e0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff6a41ae3 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x55555b4ea3d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff6a41a64 in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator() (this=0x55555b4ea3d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00007ffff6a412c2 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it (rep=0x55555b4ea3a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#11 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 43 (Thread 0x7fffad003700 (LWP 33869)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55555c771fd8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555c771f88, cond=0x55555c771fb0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555c771fb0, mutex=0x55555c771f88) at pthread_cond_wait.c:638
#3  0x00007ffff70a1837 in ARDOUR::Session::auto_connect_thread_run (this=0x55555c770000) at ../libs/ardour/session.cc:7207
#4  0x00007ffff70a135e in ARDOUR::Session::auto_connect_thread (arg=0x55555c770000) at ../libs/ardour/session.cc:7138
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 42 (Thread 0x7fffc93d0700 (LWP 33868)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55555c771f68) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555c771f18, cond=0x55555c771f40) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555c771f40, mutex=0x55555c771f18) at pthread_cond_wait.c:638
#3  0x00007ffff711cc07 in ARDOUR::Session::emit_thread_run (this=0x55555c770000) at ../libs/ardour/session_process.cc:1137
#4  0x00007ffff711cba4 in ARDOUR::Session::emit_thread (arg=0x55555c770000) at ../libs/ardour/session_process.cc:1126
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 41 (Thread 0x7fffcae49700 (LWP 33867)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x7fff5c17a830, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2e5ad66 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2e5b0f2 in g_main_loop_run () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4094db4 in BaseUI::main_thread (this=0x555559b76540) at ../libs/pbd/base_ui.cc:101
#4  0x00007ffff4098f46 in sigc::bound_mem_functor0<void, BaseUI>::operator() (this=0x5555586a29d8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff4098b86 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x5555586a29d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff40985c7 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x5555586a29a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#9  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 40 (Thread 0x7fffae887700 (LWP 33866)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x7fffae886318, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff40aacee in CrossThreadChannel::poll_for_request (this=0x5555584f22c8) at ../libs/pbd/crossthread.posix.cc:102
#2  0x00007ffff40aad57 in CrossThreadChannel::receive (this=0x5555584f22c8, msg=@0x7fffae8863ef: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:123
#3  0x00007ffff6a52abe in ARDOUR::Butler::thread_work (this=0x5555584f2230) at ../libs/ardour/butler.cc:185
#4  0x00007ffff6a5283f in ARDOUR::Butler::_thread_work (arg=0x5555584f2230) at ../libs/ardour/butler.cc:166
#5  0x00007ffff40ce0c4 in fake_thread_start (arg=0x5555586a2030) at ../libs/pbd/pthread_utils.cc:100
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 39 (Thread 0x7fffae908700 (LWP 33865)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555ce5ef30) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555ce5ef30, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555ce5ef30, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555ce5ef30) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b82f54 in ARDOUR::Graph::reached_terminal_node (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:301
#5  0x00007ffff6b8b15b in ARDOUR::GraphNode::finish (this=0x55555f569320, chain=1) at ../libs/ardour/graphnode.cc:74
#6  0x00007ffff6b864f6 in ARDOUR::GraphNode::run (this=0x55555f569320, chain=1) at ../libs/ardour/ardour/graphnode.h:65
#7  0x00007ffff6b83d34 in ARDOUR::Graph::run_one (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:442
#8  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:470
#9  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffae907cf8, p=0x55555ce5ed70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#10 0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffae907d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#11 0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffae907cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#12 0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#13 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffae907cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#14 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555c761ad0) at ../libs/backends/jack/jack_audiobackend.cc:953
#15 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#16 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 38 (Thread 0x7fffae989700 (LWP 33864)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555ce5ef08) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555ce5ef08) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffae988cf8, p=0x55555ce5ed70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffae988d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffae988cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffae988cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555c761920) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 37 (Thread 0x7fffaea0a700 (LWP 33863)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555ce5ef08) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555ce5ef08) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaea09cf8, p=0x55555ce5ed70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaea09d08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaea09cf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaea09cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555590d2ad0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 36 (Thread 0x7fffaea8b700 (LWP 33862)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555ce5ef08) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555ce5ef08) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaea8acf8, p=0x55555ce5ed70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaea8ad08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaea8acf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaea8acf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555558d62fd0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7fffaeb0c700 (LWP 33861)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555ce5ef08) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555ce5ef08) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaeb0bcf8, p=0x55555ce5ed70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaeb0bd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaeb0bcf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaeb0bcf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555584e74e0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7fffaeb8d700 (LWP 33860)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555ce5ef08) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555ce5ef08) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b8407e in ARDOUR::Graph::helper_thread (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:470
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaeb8ccf8, p=0x55555ce5ed70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaeb8cd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaeb8ccf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaeb8ccf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555cedef50) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7fffaec0e700 (LWP 33859)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555ce5ef08) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x55555ce5ef08, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x55555ce5ef08) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6b83bc6 in ARDOUR::Graph::run_one (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:426
#5  0x00007ffff6b84460 in ARDOUR::Graph::main_thread (this=0x55555ce5ed70) at ../libs/ardour/graph.cc:523
#6  0x00007ffff6b8aa81 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffaec0dcf8, p=0x55555ce5ed70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6b8a236 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffaec0dd08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6b89693 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffaec0dcf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6b88f37 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x0000555555c110e2 in boost::function0<void>::operator() (this=0x7fffaec0dcf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcbbaa7e1 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555bd108d0) at ../libs/backends/jack/jack_audiobackend.cc:953
#12 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7fffaec19900 (LWP 33858)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555558335330) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555558335330) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555558335300) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555558335300) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fffc800d900 (LWP 33857)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555558335330) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555558335330) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555558335300) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555558335300) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fffc8019900 (LWP 33856)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555558335330) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555558335330) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555558335300) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555558335300) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fffc8025900 (LWP 33855)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555558335330) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555558335330) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555558335300) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555558335300) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fffc8031900 (LWP 33854)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555558335330) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555558335330) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555558335300) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555558335300) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fffc803d900 (LWP 33853)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555558335330) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555558335330) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555558335300) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555558335300) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fffd4011900 (LWP 33852)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x555558335330) at ../sysdeps/nptl/futex-internal.h:320
#1  do_futex_wait (sem=sem@entry=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeef854e8 in __new_sem_wait_slow (sem=0x555558335330, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6b8648c in PBD::Semaphore::wait (this=0x555558335330) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff70630a1 in ARDOUR::RTTaskList::run (this=0x555558335300) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff7062e90 in ARDOUR::RTTaskList::_thread_run (arg=0x555558335300) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffc8781700 (LWP 33842)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffd40ee5bc in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd40ee6c5 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd40d4b79 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd40d3463 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffcbbcef06 in WJACK_cycle_wait (client=0x5555577d8160) at ../libs/backends/jack/weak_libjack.def:95
#6  0x00007fffcbbaa8a8 in ARDOUR::JACKAudioBackend::process_thread (this=0x555557b9e000) at ../libs/backends/jack/jack_audiobackend.cc:982
#7  0x00007fffcbbaa830 in ARDOUR::JACKAudioBackend::_process_thread (arg=0x555557b9e000) at ../libs/backends/jack/jack_audiobackend.cc:961
#8  0x00007fffd40d33c7 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#9  0x00007fffd40ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fffca453700 (LWP 33841)):
#0  __libc_read (nbytes=4, buf=0x7fffca452b80, fd=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __libc_read (fd=16, buf=0x7fffca452b80, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fffd40edb12 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd40f29ed in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd40ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fffca648700 (LWP 33840)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5555578ac828) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555578ac7d0, cond=0x5555578ac800) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5555578ac800, mutex=0x5555578ac7d0) at pthread_cond_wait.c:638
#3  0x00007fffd40ed382 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffd40e4dfd in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#5  0x00007fffd40ec870 in ?? () from /lib/x86_64-linux-gnu/libjack.so.0
#6  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fffca3d2700 (LWP 33837)):
#0  0x00007fffecb97aff in __GI___poll (fds=0x5555576c6570, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2e5ad66 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2e5ae7c in g_main_context_iteration () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2e5aec1 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#5  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffd5601700 (LWP 33829)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69dca8a in ARDOUR::AudioEngine::do_devicelist_update (this=0x555557aace70) at ../libs/ardour/audioengine.cc:720
#3  0x00007ffff69eaf45 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x555557379d20, p=0x555557aace70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69ea8ec in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x555557379d30, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff69e9f59 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x555557379d20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff69e95ec in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x555557379d20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff69e8668 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it (rep=0x555557379cf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fffd7de5700 (LWP 33828)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69dc84b in ARDOUR::AudioEngine::do_reset_backend (this=0x555557aace70) at ../libs/ardour/audioengine.cc:684
#3  0x00007ffff69eaf45 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555579acc70, p=0x555557aace70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69ea8ec in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555579acc80, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff69e9f59 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555579acc70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff69e95ec in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x5555579acc70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff69e8668 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it (rep=0x5555579acc40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#10 0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffe6a4c700 (LWP 33826)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69901cc in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:93
#3  0x00007ffff698ffb8 in analyser_work () at ../libs/ardour/analyser.cc:58
#4  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55555737f638) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55555737f630) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55555737f600) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#9  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffe724d700 (LWP 33825)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71b3134 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55555737f358) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55555737f350) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55555737f320) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#8  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffe7a4e700 (LWP 33824)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2eabe4c in g_cond_wait () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71b3134 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x00005555564f3321 in sigc::pointer_functor0<void>::operator() (this=0x55555737f728) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00005555564f0454 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x55555737f720) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ec2dd in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x55555737f6f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff33f4c4d in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2e8a1e5 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#8  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fffe824f700 (LWP 33823)):
#0  0x00007fffecb623bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffe824ebf0, rem=0x7fffe824ec00) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007fffecb68047 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2e8ba38 in g_usleep () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#3  0x00005555568e303c in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007fffeef7b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007fffecba4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffe8e2c900 (LWP 33818)):
#0  0x0000000000000000 in ?? ()
#1  0x00007ffff4ba7581 in ArdourCanvas::Item::bounding_box (this=0x555560f23430, for_own_purposes=false) at ../libs/canvas/item.cc:585
#2  0x00007ffff4ba77d7 in ArdourCanvas::Item::begin_change (this=0x555560f23430) at ../libs/canvas/item.cc:633
#3  0x00007ffff4bbd7dd in ArdourCanvas::Line::set_x1 (this=0x555560f23430, x1=3) at ../libs/canvas/line.cc:140
#4  0x0000555556209ca1 in ArdourMarker::setup_line (this=0x555560ca72d0) at ../gtk2_ardour/marker.cc:419
#5  0x000055555620a520 in ArdourMarker::set_position (this=0x555560ca72d0, sample=189919) at ../gtk2_ardour/marker.cc:537
#6  0x000055555620a558 in ArdourMarker::reposition (this=0x555560ca72d0) at ../gtk2_ardour/marker.cc:544
#7  0x000055555620db52 in sigc::bound_mem_functor0<void, ArdourMarker>::operator() (this=0x555560f23278) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#8  0x000055555620d484 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourMarker> >::operator() (this=0x555560f23270) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#9  0x000055555620c9df in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourMarker>, void>::call_it (rep=0x555560f23240) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0x0000555555c2b3fe in sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0x5555599b66f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:772
#11 0x0000555555c35de6 in sigc::signal0<void, sigc::nil>::emit (this=0x55555912bf90) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2679
#12 0x0000555555c2f444 in sigc::signal0<void, sigc::nil>::operator() (this=0x55555912bf90) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2687
#13 0x0000555555dc7725 in Editor::on_samples_per_pixel_changed (this=0x55555912bcb0) at ../gtk2_ardour/editor.cc:4637
#14 0x0000555555dc7a6e in Editor::visual_changer (this=0x55555912bcb0, vc=...) at ../gtk2_ardour/editor.cc:4761
#15 0x0000555555dc797e in Editor::idle_visual_changer (this=0x55555912bcb0) at ../gtk2_ardour/editor.cc:4726
#16 0x0000555555dc7896 in Editor::_idle_visual_changer (arg=0x55555912bcb0) at ../gtk2_ardour/editor.cc:4684
#17 0x00007ffff2e5aa2a in g_main_context_dispatch () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#18 0x00007ffff2e5add0 in ?? () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#19 0x00007ffff2e5b0f2 in g_main_loop_run () from /opt/Ardour-6.8.209-dbg/lib/libglib-2.0.so.0
#20 0x00007ffff244b3e7 in gtk_main () from /opt/Ardour-6.8.209-dbg/lib/libgtk-x11-2.0.so.0
#21 0x00007ffff447811c in Gtkmm2ext::UI::run (this=0x555557ae41e0, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:310
#22 0x00005555562051a1 in main (argc=1, argv=0x7fffffffd158) at ../gtk2_ardour/main.cc:422
gdb-ardour-06.txt (57,922 bytes)   

al f

2021-08-01 10:06

reporter   ~0026086

Some regions containing cue markers were moved or deleted, or trimmed so that the cue markers were not visible anymore.

It seems to me that these steps will reproduce crashes:

1. start using region cue marks (I am naming them like "N some text" where N is a number. The text may contain ! or ? or .
2. moving along the timeline using the summary, setting cue markers and splitting, trimming, moving, cutting and pasting regions as needed.
3. Ardour will eventually crash on "click and drag" or "scroll" when the mouse pointer is in the summary.

paul

2021-08-03 18:56

administrator   ~0026088

this is now fixed as of commit b8bb5e6bd15eb0

Thanks for your help with this.

al f

2021-08-06 19:00

reporter   ~0026091

Wonderful news - thanks a lot for the effort and for a fantastic piece of software!

al f

2021-08-07 12:23

reporter   ~0026095

What does this mean for when the fix will be available - will there be a 6.9 release or should I wait for 7.0?

paul

2021-08-07 14:09

administrator   ~0026097

You could pick up a nightly build from nightly.ardour.org if you're a subscriber or paid at least US$45 for ardour from ardour.org

anonymous

2021-08-20 10:09

viewer   ~0026119

Issue has been closed automatically, by Trigger Close Plugin.
Feel free to re-open with additional information if you think the issue is not resolved.

Issue History

Date Modified Username Field Change
2021-06-21 10:09 al f New Issue
2021-06-21 10:09 al f Tag Attached: 6.7
2021-06-21 10:09 al f Tag Attached: Editor
2021-06-21 10:09 al f Tag Attached: Import
2021-06-24 16:49 Hans Flikkema Note Added: 0026004
2021-07-20 12:54 al f Note Added: 0026066
2021-07-20 12:54 al f Tag Attached: 6.8
2021-07-20 12:57 al f Note Added: 0026067
2021-07-21 06:10 al f Note Added: 0026068
2021-07-21 11:33 al f Note Added: 0026069
2021-07-21 15:38 al f Note Added: 0026071
2021-07-21 21:01 al f Note Added: 0026072
2021-07-22 20:34 al f File Added: ardour-gdb.log
2021-07-22 20:34 al f Note Added: 0026073
2021-07-22 21:42 paul Note Added: 0026074
2021-07-22 21:55 al f Note Added: 0026075
2021-07-22 22:12 paul Note Added: 0026076
2021-07-22 22:45 al f File Added: gdb-ardour-03.txt
2021-07-22 22:45 al f Note Added: 0026077
2021-07-26 11:26 al f File Added: gdb-ardour-06-scroll-to-zoom.txt
2021-07-26 11:26 al f Note Added: 0026080
2021-07-26 13:51 paul Note Added: 0026082
2021-07-26 14:47 al f Note Added: 0026083
2021-08-01 09:54 al f File Added: gdb-ardour-06.txt
2021-08-01 09:54 al f Note Added: 0026085
2021-08-01 10:06 al f Note Added: 0026086
2021-08-03 18:56 paul Assigned To => paul
2021-08-03 18:56 paul Status new => resolved
2021-08-03 18:56 paul Resolution open => fixed
2021-08-03 18:56 paul Note Added: 0026088
2021-08-06 19:00 al f Note Added: 0026091
2021-08-07 12:23 al f Note Added: 0026095
2021-08-07 14:09 paul Note Added: 0026097
2021-08-20 10:09 anonymous Note Added: 0026119
2021-08-20 10:09 anonymous Status resolved => closed