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IDProjectCategoryView StatusLast Update
0008994ardourbugspublic2022-10-16 21:45
Reportermartibs Assigned To 
PrioritynoneSeveritycrashReproducibilityalways
Status newResolutionopen 
PlatformDebian GNUOSLinuxOS Version(any)
Product Version7.0 
Summary0008994: Freeze on track input or monitor select
DescriptionOpening an empty project in safe mode. Using ALSA with pretty low demand settings (48K, 1024 buffer). After adding an track, when enabling monitor input, or sometimes changing track input, the system freezes. Does not seem to happen at all when ALSA MIDI is disabled (set to None).
TagsNo tags attached.

Relationships

related to 0008993 new Adding track on empty project in safe mode crashes 

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martibs

2022-10-16 19:41

reporter  

gdb-221016-2.txt (56,208 bytes)   
Starting program: /opt/Ardour-7.0.pre0.2610-dbg/bin/ardour-7.0.pre0.2610 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe41f1700 (LWP 4623)]
[New Thread 0x7fffdffff700 (LWP 4624)]
[New Thread 0x7fffdf7fe700 (LWP 4625)]
[New Thread 0x7fffdeffd700 (LWP 4626)]
[New Thread 0x7fffde7fc700 (LWP 4627)]
[New Thread 0x7fffcefd5700 (LWP 4632)]
[Thread 0x7fffcefd5700 (LWP 4632) exited]
[New Thread 0x7fffcefd5700 (LWP 4633)]
[New Thread 0x7fffcd513700 (LWP 4634)]
[New Thread 0x7fffc3952700 (LWP 4635)]
[New Thread 0x7fffc2e65700 (LWP 4636)]
[New Thread 0x7fffc2de4700 (LWP 4637)]
[Thread 0x7fffc2de4700 (LWP 4637) exited]
[Thread 0x7fffc2e65700 (LWP 4636) exited]
[New Thread 0x7fffc2de4700 (LWP 4642)]
[New Thread 0x7fffc23d8700 (LWP 4643)]
[New Thread 0x7fffc1bd7700 (LWP 4644)]
[New Thread 0x7fffc13d6700 (LWP 4645)]
[New Thread 0x7fffc0bd5700 (LWP 4646)]
[New Thread 0x7fffa7fff700 (LWP 4647)]
[New Thread 0x7fffa77fe700 (LWP 4648)]
[Thread 0x7fffc13d6700 (LWP 4645) exited]
[Thread 0x7fffc3952700 (LWP 4635) exited]
[Thread 0x7fffa7fff700 (LWP 4647) exited]
[Thread 0x7fffc0bd5700 (LWP 4646) exited]
[Thread 0x7fffc1bd7700 (LWP 4644) exited]
[Thread 0x7fffc23d8700 (LWP 4643) exited]
[New Thread 0x7fffa7fff700 (LWP 4651)]
[Thread 0x7fffa77fe700 (LWP 4648) exited]
[Detaching after vfork from child process 4667]
[New Thread 0x7fffa77fe700 (LWP 4668)]
[New Thread 0x7fffc13af940 (LWP 4669)]
[New Thread 0x7fffc13a3940 (LWP 4670)]
[New Thread 0x7fffc1397940 (LWP 4671)]
[New Thread 0x7fffc138b940 (LWP 4672)]
[New Thread 0x7fffc137f940 (LWP 4673)]
[New Thread 0x7fffc1373940 (LWP 4674)]
[New Thread 0x7fffc1367940 (LWP 4675)]
[New Thread 0x7fffc135b940 (LWP 4676)]
[New Thread 0x7fffc134f940 (LWP 4677)]
[New Thread 0x7fffc1343940 (LWP 4678)]
[New Thread 0x7fffc1337940 (LWP 4679)]
[New Thread 0x7fffc132b940 (LWP 4680)]
[New Thread 0x7fffc131f940 (LWP 4681)]
[New Thread 0x7fffc23d8700 (LWP 4682)]
[New Thread 0x7fffc0bd5700 (LWP 4687)]
[New Thread 0x7fffc1bd7700 (LWP 4688)]
[New Thread 0x7fffa6ffd700 (LWP 4689)]
[New Thread 0x7fffa67fc700 (LWP 4690)]
[New Thread 0x7fffa5ffb700 (LWP 4691)]
[New Thread 0x7fffa57fa700 (LWP 4692)]
[Detaching after vfork from child process 4693]
[New Thread 0x7fffa4ff9700 (LWP 4694)]
[Thread 0x7fffa4ff9700 (LWP 4694) exited]
[Thread 0x7fffa57fa700 (LWP 4692) exited]
[Thread 0x7fffa5ffb700 (LWP 4691) exited]
[Thread 0x7fffa6ffd700 (LWP 4689) exited]
[Thread 0x7fffc1bd7700 (LWP 4688) exited]
[Thread 0x7fffa7fff700 (LWP 4651) exited]
[Thread 0x7fffc0bd5700 (LWP 4687) exited]
[Detaching after vfork from child process 4697]
[New Thread 0x7fffc0bd5700 (LWP 4698)]
[Thread 0x7fffc0bd5700 (LWP 4698) exited]
[New Thread 0x7fffc0bd5700 (LWP 4701)]
[New Thread 0x7fffa4ff9700 (LWP 4702)]
[New Thread 0x7fffa7fff700 (LWP 4703)]
[New Thread 0x7fffa5ffb700 (LWP 4704)]
[New Thread 0x7fffc1bd7700 (LWP 4705)]
[New Thread 0x7fffc0ef4940 (LWP 4706)]
[New Thread 0x7fffc0ee8940 (LWP 4707)]
[New Thread 0x7fffc0edc940 (LWP 4708)]
[New Thread 0x7fffc0ed0940 (LWP 4709)]
[New Thread 0x7fffc0ec4940 (LWP 4710)]
[New Thread 0x7fffc0eb8940 (LWP 4711)]
[New Thread 0x7fffc0e34940 (LWP 4712)]
[New Thread 0x7fffc0db0940 (LWP 4713)]
[New Thread 0x7fffc0d2c940 (LWP 4714)]
[New Thread 0x7fffc0ca8940 (LWP 4715)]
[New Thread 0x7fffc033b700 (LWP 4716)]
[New Thread 0x7fffa6ffd700 (LWP 4717)]
[New Thread 0x7fff2effd700 (LWP 4718)]
[New Thread 0x7fff2e7fc700 (LWP 4719)]
[New Thread 0x7fff2dffb700 (LWP 4720)]
[New Thread 0x7fff2d7fa700 (LWP 4721)]
[Thread 0x7fffc1bd7700 (LWP 4705) exited]
[Thread 0x7fffa7fff700 (LWP 4703) exited]
[Thread 0x7fffa4ff9700 (LWP 4702) exited]
[Thread 0x7fffc0bd5700 (LWP 4701) exited]
[Thread 0x7fffa67fc700 (LWP 4690) exited]
[Thread 0x7fffa5ffb700 (LWP 4704) exited]

Thread 1 "ArdourGUI" received signal SIGINT, Interrupt.
syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
38	../sysdeps/unix/sysv/linux/x86_64/syscall.S: No such file or directory.

Thread 64 (Thread 0x7fff2d7fa700 (LWP 4721) "AutomationWatch"):
#0  0x00007fffec936621 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fff2d7f9b40, rem=0x7fff2d7f9b50) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1  0x00007fffec93be03 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2c49a38 in g_usleep () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff699dbdf in ARDOUR::AutomationWatch::thread (this=0x55555915ac60) at ../libs/ardour/automation_watch.cc:205
#4  0x00007ffff69a30c9 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x55555d9f2970, p=0x55555915ac60) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff69a2d5a in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x55555d9f2980, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff69a24c7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x55555d9f2970) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff69a1e55 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#8  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x55555d9f2968) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x55555d9f2940) at ../libs/pbd/pthread_utils.cc:483
#10 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 63 (Thread 0x7fff2dffb700 (LWP 4720) "autoconnect"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555559a88cbc) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555559a88c68, cond=0x555559a88c90) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555559a88c90, mutex=0x555559a88c68) at pthread_cond_wait.c:638
#3  0x00007ffff70306e5 in ARDOUR::Session::auto_connect_thread_run (this=0x555559a86ce0) at ../libs/ardour/session.cc:7342
#4  0x00007ffff703020c in ARDOUR::Session::auto_connect_thread (arg=0x555559a86ce0) at ../libs/ardour/session.cc:7273
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 62 (Thread 0x7fff2e7fc700 (LWP 4719) "SessionSignals"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555559a88c48) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555559a88bf8, cond=0x555559a88c20) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555559a88c20, mutex=0x555559a88bf8) at pthread_cond_wait.c:638
#3  0x00007ffff70b0809 in ARDOUR::Session::emit_thread_run (this=0x555559a86ce0) at ../libs/ardour/session_process.cc:1210
#4  0x00007ffff70b07a6 in ARDOUR::Session::emit_thread (arg=0x555559a86ce0) at ../libs/ardour/session_process.cc:1199
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 61 (Thread 0x7fff2effd700 (LWP 4718) "Generic MIDI"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fff28194650, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2c18d66 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2c190f2 in g_main_loop_run () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff3c4f1b6 in BaseUI::main_thread (this=0x555559f57e00) at ../libs/pbd/base_ui.cc:102
#4  0x00007ffff3c5386d in boost::_mfi::mf0<void, BaseUI>::operator() (this=0x5555599e75a0, p=0x555559f57e00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff3c5353e in boost::_bi::list1<boost::_bi::value<BaseUI*> >::operator()<boost::_mfi::mf0<void, BaseUI>, boost::_bi::list0> (this=0x5555599e75b0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff3c5312d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >::operator() (this=0x5555599e75a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff3c52bec in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#8  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555599e7598) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555599e7570) at ../libs/pbd/pthread_utils.cc:483
#10 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 60 (Thread 0x7fffa6ffd700 (LWP 4717) "midiUI"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fff3417a830, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2c18d66 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2c190f2 in g_main_loop_run () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff3c4f1b6 in BaseUI::main_thread (this=0x55555958d200) at ../libs/pbd/base_ui.cc:102
#4  0x00007ffff3c5386d in boost::_mfi::mf0<void, BaseUI>::operator() (this=0x55555cea4620, p=0x55555958d200) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff3c5353e in boost::_bi::list1<boost::_bi::value<BaseUI*> >::operator()<boost::_mfi::mf0<void, BaseUI>, boost::_bi::list0> (this=0x55555cea4630, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff3c5312d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >::operator() (this=0x55555cea4620) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff3c52bec in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#8  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x55555cea4618) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x55555cea45f0) at ../libs/pbd/pthread_utils.cc:483
#10 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 59 (Thread 0x7fffc033b700 (LWP 4716) "butler"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fffc033a2c4, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3c6579e in CrossThreadChannel::poll_for_request (this=0x55555ca00ec8) at ../libs/pbd/crossthread.posix.cc:108
#2  0x00007ffff3c6580f in CrossThreadChannel::receive (this=0x55555ca00ec8, msg=@0x7fffc033a39f: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff69b2ea0 in ARDOUR::Butler::thread_work (this=0x55555ca00e30) at ../libs/ardour/butler.cc:188
#4  0x00007ffff69b2c21 in ARDOUR::Butler::_thread_work (arg=0x55555ca00e30) at ../libs/ardour/butler.cc:169
#5  0x00007ffff3c88e7e in fake_thread_start (arg=0x55555cc9cb60) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 58 (Thread 0x7fffc0ca8940 (LWP 4715) "RT-4-0x7fffc0ca"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555584e8410) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x5555584e8410, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x5555584e8410, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x5555584e8410) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae72d8 in ARDOUR::Graph::reached_terminal_node (this=0x5555584e8250) at ../libs/ardour/graph.cc:330
#5  0x00007ffff6aef9b7 in ARDOUR::GraphNode::finish (this=0x55555a0b9dc0, chain=1) at ../libs/ardour/graphnode.cc:74
#6  0x00007ffff6aea93e in ARDOUR::GraphNode::run (this=0x55555a0b9dc0, chain=1) at ../libs/ardour/ardour/graphnode.h:65
#7  0x00007ffff6ae811a in ARDOUR::Graph::run_one (this=0x5555584e8250) at ../libs/ardour/graph.cc:475
#8  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x5555584e8250) at ../libs/ardour/graph.cc:506
#9  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc0ca7ef8, p=0x5555584e8250) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#10 0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc0ca7f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#11 0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc0ca7ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#12 0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffc0ca7ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#14 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x5555592f2730) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#15 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#16 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 57 (Thread 0x7fffc0d2c940 (LWP 4714) "RT-3-0x7fffc0d2"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555584e83e8) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x5555584e83e8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x5555584e8250) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x5555584e8250) at ../libs/ardour/graph.cc:506
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc0d2bef8, p=0x5555584e8250) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc0d2bf08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc0d2bef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffc0d2bef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555849ec00) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 56 (Thread 0x7fffc0db0940 (LWP 4713) "RT-2-0x7fffc0db"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555584e83e8) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x5555584e83e8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x5555584e8250) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x5555584e8250) at ../libs/ardour/graph.cc:506
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc0dafef8, p=0x5555584e8250) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc0daff08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc0dafef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffc0dafef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x555558bc9ee0) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 55 (Thread 0x7fffc0e34940 (LWP 4712) "RT-1-0x7fffc0e3"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555584e83e8) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x5555584e83e8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x5555584e8250) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x5555584e8250) at ../libs/ardour/graph.cc:506
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc0e33ef8, p=0x5555584e8250) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc0e33f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc0e33ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffc0e33ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555e390d00) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 54 (Thread 0x7fffc0eb8940 (LWP 4711) "RT-main-0x7fffc"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555584e83e8) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x5555584e83e8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x5555584e83e8) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x5555584e8250) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae888c in ARDOUR::Graph::main_thread (this=0x5555584e8250) at ../libs/ardour/graph.cc:560
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc0eb7ef8, p=0x5555584e8250) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc0eb7f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc0eb7ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffc0eb7ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x555558f08990) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 53 (Thread 0x7fffc0ec4940 (LWP 4710) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff6c001f20) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff6c001f20) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 52 (Thread 0x7fffc0ed0940 (LWP 4709) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff6c001f20) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff6c001f20) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 51 (Thread 0x7fffc0edc940 (LWP 4708) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff6c001f20) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff6c001f20) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 50 (Thread 0x7fffc0ee8940 (LWP 4707) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff6c001f20) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff6c001f20) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 49 (Thread 0x7fffc0ef4940 (LWP 4706) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff6c001f20) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff6c001f20, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff6c001f20) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff6c001ef0) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7fffc23d8700 (LWP 4682) "ALSA-MIDI-LIST"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fff78000b80, nfds=1, timeout=200) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc1f93b0 in ARDOUR::AlsaAudioBackend::midi_device_thread (this=0x555557c4da90) at ../libs/backends/alsa/alsa_audiobackend.cc:1407
#2  0x00007fffcc1f9248 in ARDOUR::AlsaAudioBackend::_midi_device_thread (arg=0x555557c4da90) at ../libs/backends/alsa/alsa_audiobackend.cc:1370
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7fffc131f940 (LWP 4681) "audioengine"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69149 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff4f5212f in SerializedRCUManager<Temporal::TempoMap>::write_copy (this=0x5555572d9aa0 <Temporal::TempoMap::_map_mgr>) at ../libs/pbd/pbd/rcu.h:162
#3  0x00007ffff4f4440a in Temporal::TempoMap::write_copy () at ../libs/temporal/tempo.cc:3193
#4  0x00007ffff7030ab8 in ARDOUR::Session::maybe_update_tempo_from_midiclock_tempo (this=0x555559a86ce0, bpm=131.962112) at ../libs/ardour/session.cc:7380
#5  0x00007ffff6dc2330 in ARDOUR::MIDIClock_TransportMaster::update_midi_clock (this=0x5555579bbc90, timestamp=944111) at ../libs/ardour/midi_clock_slave.cc:293
#6  0x00007ffff6dc7e0e in boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>::operator() (this=0x7fff74027a28, p=0x5555579bbc90, a1=..., a2=944111) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:280
#7  0x00007ffff6dc6f4c in boost::_bi::list3<boost::_bi::value<ARDOUR::MIDIClock_TransportMaster*>, boost::arg<1>, boost::arg<2> >::operator()<boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>, boost::_bi::rrlist2<MIDI::Parser&, long> > (this=0x7fff74027a38, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:398
#8  0x00007ffff6dc5d7a in boost::_bi::bind_t<void, boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>, boost::_bi::list3<boost::_bi::value<ARDOUR::MIDIClock_TransportMaster*>, boost::arg<1>, boost::arg<2> > >::operator()<MIDI::Parser&, long> (this=0x7fff74027a28, a1=..., a2=@0x7fffc131df58: 944111) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1318
#9  0x00007ffff6dc5566 in boost::detail::function::void_function_obj_invoker2<boost::_bi::bind_t<void, boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>, boost::_bi::list3<boost::_bi::value<ARDOUR::MIDIClock_TransportMaster*>, boost::arg<1>, boost::arg<2> > >, void, MIDI::Parser&, long>::invoke (function_obj_ptr=..., a0=..., a1=944111) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x00007ffff55d7bb1 in boost::function2<void, MIDI::Parser&, long>::operator() (this=0x7fff74027a20, a0=..., a1=944111) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007ffff55d5751 in PBD::Signal2<void, MIDI::Parser&, long, PBD::OptionalLastValue<void> >::operator() (this=0x5555579c0460, a1=..., a2=944111) at libs/pbd/pbd/signals_generated.h:1136
#12 0x00007ffff55d10d6 in MIDI::Parser::realtime_msg (this=0x5555579bbf30, inbyte=248 '\370') at ../libs/midi++2/parser.cc:552
#13 0x00007ffff55d0b68 in MIDI::Parser::scanner (this=0x5555579bbf30, inbyte=248 '\370') at ../libs/midi++2/parser.cc:394
#14 0x00007ffff6df7d59 in ARDOUR::MidiPort::read_and_parse_entire_midi_buffer_with_no_speed_adjustment (this=0x555557a4e800, nframes=1024, parser=..., now=943104) at ../libs/ardour/midi_port.cc:219
#15 0x00007ffff6dc115e in ARDOUR::MIDIClock_TransportMaster::pre_process (this=0x5555579bbc90, nframes=1024, now=943104, session_pos=...) at ../libs/ardour/midi_clock_slave.cc:133
#16 0x00007ffff7185f78 in ARDOUR::TransportMasterManager::pre_process_transport_masters (this=0x5555573897c0, nframes=1024, now=943104) at ../libs/ardour/transport_master_manager.cc:172
#17 0x00007ffff6932d88 in ARDOUR::AudioEngine::process_callback (this=0x5555573da830, nframes=1024) at ../libs/ardour/audioengine.cc:491
#18 0x00007fffcc1fcb6e in ARDOUR::AlsaAudioBackend::main_process_thread (this=0x555557c4da90) at ../libs/backends/alsa/alsa_audiobackend.cc:1964
#19 0x00007fffcc1f5c0d in pthread_process (arg=0x555557c4da90) at ../libs/backends/alsa/alsa_audiobackend.cc:803
#20 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#21 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7fffc132b940 (LWP 4680) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x55555762a7e0, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x55555761c880) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x55555761c8a0) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7fffc1337940 (LWP 4679) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55555760ee10) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555760edc0, cond=0x55555760ede8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555760ede8, mutex=0x55555760edc0) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x55555760ed90) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x55555760edb0) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fffc1343940 (LWP 4678) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x55555777b3f0, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x55555777b580) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x55555777b5a0) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fffc134f940 (LWP 4677) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55555762a610) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555762a5c0, cond=0x55555762a5e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555762a5e8, mutex=0x55555762a5c0) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x55555762a590) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x55555762a5b0) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fffc135b940 (LWP 4676) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x55555777b410, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x555557731920) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x555557731940) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fffc1367940 (LWP 4675) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557a6b200) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557a6b1b0, cond=0x555557a6b1d8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557a6b1d8, mutex=0x555557a6b1b0) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557a6b180) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557a6b1a0) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fffc1373940 (LWP 4674) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x555557c4da40, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x555557b1dc50) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x555557b1dc70) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fffc137f940 (LWP 4673) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557be5990) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557be5940, cond=0x555557be5968) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557be5968, mutex=0x555557be5940) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557be5910) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557be5930) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fffc138b940 (LWP 4672) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x55555774f000, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x555557bef000) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x555557bef020) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fffc1397940 (LWP 4671) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557bf0380) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557bf0330, cond=0x555557bf0358) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557bf0358, mutex=0x555557bf0330) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557bf0300) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557bf0320) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fffc13a3940 (LWP 4670) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x5555577d0a50, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x5555575d6b70) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x5555575d6b90) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fffc13af940 (LWP 4669) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557a3f190) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557a3f140, cond=0x555557a3f168) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557a3f168, mutex=0x555557a3f140) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557a3f110) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557a3f130) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffa77fe700 (LWP 4668) "ExecStdOut"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fffa77fbc50, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3c9fd66 in PBD::SystemExec::output_interposer (this=0x555557750cc0) at ../libs/pbd/system_exec.cc:871
#2  0x00007ffff3c9eed0 in interposer_thread (arg=0x555557750cc0) at ../libs/pbd/system_exec.cc:282
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fffc2de4700 (LWP 4642) "gmain"):
#0  0x00007fffec963def in __GI___poll (fds=0x5555575f11f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2c18d66 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2c18e7c in g_main_context_iteration () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2c18ec1 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2c481e5 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffcd513700 (LWP 4634) "DeviceList"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6933ca2 in ARDOUR::AudioEngine::do_devicelist_update (this=0x5555573da830) at ../libs/ardour/audioengine.cc:750
#3  0x00007ffff6941c8f in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x555557426950, p=0x5555573da830) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69411ca in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x555557426960, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6940833 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x555557426950) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff693f9bb in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#7  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x555557426948) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x555557426920) at ../libs/pbd/pthread_utils.cc:483
#9  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffcefd5700 (LWP 4633) "EngineWatchdog"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6933a63 in ARDOUR::AudioEngine::do_reset_backend (this=0x5555573da830) at ../libs/ardour/audioengine.cc:714
#3  0x00007ffff6941c8f in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555573d9390, p=0x5555573da830) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69411ca in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555573d93a0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6940833 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555573d9390) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff693f9bb in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#7  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573d9388) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573d9360) at ../libs/pbd/pthread_utils.cc:483
#9  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fffde7fc700 (LWP 4627) "Analyzer"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff68e4104 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:95
#3  0x000055555644c22d in sigc::pointer_functor0<void>::operator() (this=0x5555573c9650) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00007ffff68e747c in boost::detail::function::void_function_obj_invoker0<sigc::pointer_functor0<void>, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#5  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573c9648) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#6  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573c9620) at ../libs/pbd/pthread_utils.cc:483
#7  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffdeffd700 (LWP 4626) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff714e712 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff7b3929f in boost::detail::function::void_function_invoker0<void (*)(), void>::invoke (function_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:118
#4  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573c9ec8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#5  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573c9ea0) at ../libs/pbd/pthread_utils.cc:483
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffdf7fe700 (LWP 4625) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff714e712 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff7b3929f in boost::detail::function::void_function_invoker0<void (*)(), void>::invoke (function_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:118
#4  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573cb688) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#5  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573cb660) at ../libs/pbd/pthread_utils.cc:483
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffdffff700 (LWP 4624) "LXVSTEventLoop"):
#0  0x00007fffec936621 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffdfffebb0, rem=0x7fffdfffebc0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1  0x00007fffec93be03 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2c49a38 in g_usleep () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00005555568eaea0 in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fffe41f1700 (LWP 4623) "Trigger Worker"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fffe41f0b84, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3c6579e in CrossThreadChannel::poll_for_request (this=0x55555734e0a8) at ../libs/pbd/crossthread.posix.cc:108
#2  0x00007ffff3c6580f in CrossThreadChannel::receive (this=0x55555734e0a8, msg=@0x7fffe41f0bef: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff71abbe3 in ARDOUR::TriggerBoxThread::thread_work (this=0x55555734e080) at ../libs/ardour/triggerbox.cc:4418
#4  0x00007ffff71abb79 in ARDOUR::TriggerBoxThread::_thread_work (arg=0x55555734e080) at ../libs/ardour/triggerbox.cc:4406
#5  0x00007ffff3c88e7e in fake_thread_start (arg=0x5555573850a0) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffe8a19dc0 (LWP 4613) "ArdourGUI"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69149 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x0000555555b16344 in Glib::Threads::Mutex::Lock::Lock (this=0x7fffffffbe10, mutex=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/glibmm-2.4/glibmm/threads.h:643
#3  0x00007ffff6b19003 in ARDOUR::IO::connect_ports_to_bundle (this=0x55555737b7f0, c=..., exclusive=true, allow_partial=false, src=0x55555de80b10) at ../libs/ardour/io.cc:1318
#4  0x00007ffff6b18f7d in ARDOUR::IO::connect_ports_to_bundle (this=0x55555737b7f0, c=..., exclusive=true, src=0x55555de80b10) at ../libs/ardour/io.cc:1311
#5  0x0000555556053d26 in IOButton::bundle_chosen (this=0x55555de80b10, c=...) at ../gtk2_ardour/io_button.cc:123
#6  0x00005555560614ea in sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> >::operator() (this=0x55555da3e3c0, _A_a1=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1856
#7  0x000055555606035b in sigc::adaptor_functor<sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> > >::operator()<boost::shared_ptr<ARDOUR::Bundle>&> (this=0x55555da3e3b8, _A_arg1=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#8  0x000055555605f0a0 in sigc::bind_functor<-1, sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> >, boost::shared_ptr<ARDOUR::Bundle>, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator() (this=0x55555da3e3b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1123
#9  0x000055555605d935 in sigc::internal::slot_call0<sigc::bind_functor<-1, sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> >, boost::shared_ptr<ARDOUR::Bundle>, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void>::call_it (rep=0x55555da3e380) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0x00007ffff31c1c88 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglibmm-2.4.so.1
#11 0x00007ffff2f27945 in g_closure_invoke () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#12 0x00007ffff2f3901b in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#13 0x00007ffff2f42c30 in g_signal_emit_valist () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#14 0x00007ffff2f43082 in g_signal_emit () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#15 0x00007ffff238f1fe in gtk_widget_activate () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#16 0x00007ffff22257a2 in gtk_menu_shell_activate_item () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#17 0x00007ffff2225bf6 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#18 0x00007ffff22177f6 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#19 0x00007ffff220bcac in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#20 0x00007ffff2f27945 in g_closure_invoke () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#21 0x00007ffff2f395a0 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#22 0x00007ffff2f4269b in g_signal_emit_valist () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#23 0x00007ffff2f43082 in g_signal_emit () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#24 0x00007ffff239064c in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#25 0x00007ffff220a29d in gtk_propagate_event () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#26 0x00007ffff220a723 in gtk_main_do_event () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#27 0x00007ffff1e26b4c in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgdk-x11-2.0.so.0
#28 0x00007ffff2c18b67 in g_main_context_dispatch () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#29 0x00007ffff2c18dd0 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#30 0x00007ffff2c190f2 in g_main_loop_run () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#31 0x00007ffff22093e7 in gtk_main () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#32 0x00007ffff4035c6e in Gtkmm2ext::UI::run (this=0x5555579ea9f0, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:309
#33 0x000055555614565c in main (argc=1, argv=0x7fffffffd068) at ../gtk2_ardour/main.cc:423
gdb-221016-2.txt (56,208 bytes)   
gdb-221016-3.txt (60,974 bytes)   
Starting program: /opt/Ardour-7.0.pre0.2610-dbg/bin/ardour-7.0.pre0.2610 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe41f1700 (LWP 5329)]
[New Thread 0x7fffdffff700 (LWP 5330)]
[New Thread 0x7fffdf7fe700 (LWP 5331)]
[New Thread 0x7fffdeffd700 (LWP 5332)]
[New Thread 0x7fffde7fc700 (LWP 5333)]
[New Thread 0x7fffcefd5700 (LWP 5342)]
[Thread 0x7fffcefd5700 (LWP 5342) exited]
[New Thread 0x7fffcefd5700 (LWP 5345)]
[New Thread 0x7fffcd513700 (LWP 5346)]
[New Thread 0x7fffc3952700 (LWP 5347)]
[New Thread 0x7fffc2e65700 (LWP 5348)]
[New Thread 0x7fffc2de4700 (LWP 5349)]
[Thread 0x7fffc2de4700 (LWP 5349) exited]
[Thread 0x7fffc2e65700 (LWP 5348) exited]
[New Thread 0x7fffc2de4700 (LWP 5352)]
[New Thread 0x7fffc23d8700 (LWP 5353)]
[New Thread 0x7fffc1bd7700 (LWP 5354)]
[New Thread 0x7fffc13d6700 (LWP 5355)]
[New Thread 0x7fffc0bd5700 (LWP 5356)]
[New Thread 0x7fffa7fff700 (LWP 5357)]
[New Thread 0x7fffa77fe700 (LWP 5358)]
[Thread 0x7fffc3952700 (LWP 5347) exited]
[Thread 0x7fffa77fe700 (LWP 5358) exited]
[Thread 0x7fffc23d8700 (LWP 5353) exited]
[Thread 0x7fffa7fff700 (LWP 5357) exited]
[Thread 0x7fffc13d6700 (LWP 5355) exited]
[Thread 0x7fffc1bd7700 (LWP 5354) exited]
[New Thread 0x7fffa7fff700 (LWP 5369)]
[New Thread 0x7fffc13d6700 (LWP 5370)]
[Thread 0x7fffc13d6700 (LWP 5370) exited]
[Thread 0x7fffa7fff700 (LWP 5369) exited]
[Detaching after vfork from child process 5381]
[New Thread 0x7fffc13d6700 (LWP 5382)]
[New Thread 0x7fffc0392940 (LWP 5383)]
[New Thread 0x7fffa7fff700 (LWP 5384)]
[New Thread 0x7fffc1bd7700 (LWP 5389)]
[New Thread 0x7fffc23d8700 (LWP 5390)]
[New Thread 0x7fffa77fe700 (LWP 5391)]
[New Thread 0x7fffa6ffd700 (LWP 5392)]
[New Thread 0x7fffa67fc700 (LWP 5393)]
[New Thread 0x7fffa5ffb700 (LWP 5394)]
[Detaching after vfork from child process 5395]
[New Thread 0x7fffa5741700 (LWP 5396)]
[Thread 0x7fffa5741700 (LWP 5396) exited]
[Thread 0x7fffa67fc700 (LWP 5393) exited]
[Thread 0x7fffa77fe700 (LWP 5391) exited]
[Thread 0x7fffc1bd7700 (LWP 5389) exited]
[Thread 0x7fffc0bd5700 (LWP 5356) exited]
[Thread 0x7fffa5ffb700 (LWP 5394) exited]
[Thread 0x7fffa6ffd700 (LWP 5392) exited]
[Detaching after vfork from child process 5399]
[New Thread 0x7fffa5ffb700 (LWP 5400)]
[Thread 0x7fffa5ffb700 (LWP 5400) exited]
[New Thread 0x7fffa5ffb700 (LWP 5406)]
[New Thread 0x7fffa6ffd700 (LWP 5407)]
[New Thread 0x7fffa5741700 (LWP 5408)]
[New Thread 0x7fffc1bd7700 (LWP 5409)]
[New Thread 0x7fffc0bd5700 (LWP 5410)]
[New Thread 0x7fffa77fe700 (LWP 5411)]
[New Thread 0x7fffa67fb940 (LWP 5414)]
[New Thread 0x7fffa67ef940 (LWP 5415)]
[New Thread 0x7fffa67e3940 (LWP 5416)]
[New Thread 0x7fffa67d7940 (LWP 5417)]
[New Thread 0x7fffa67cb940 (LWP 5418)]
[New Thread 0x7fffa67bf940 (LWP 5419)]
[New Thread 0x7fffa673b940 (LWP 5420)]
[New Thread 0x7fffa66b7940 (LWP 5421)]
[New Thread 0x7fffa6633940 (LWP 5422)]
[New Thread 0x7fffa65af940 (LWP 5423)]
[New Thread 0x7fffa64c7700 (LWP 5424)]
[New Thread 0x7fffa4f40700 (LWP 5425)]
[New Thread 0x7fff5a7fc700 (LWP 5426)]
[New Thread 0x7fff59ffb700 (LWP 5427)]
[New Thread 0x7fff597fa700 (LWP 5428)]
[New Thread 0x7fff58ff9700 (LWP 5429)]
[Thread 0x7fffa6ffd700 (LWP 5407) exited]
[Thread 0x7fffa77fe700 (LWP 5411) exited]
[Thread 0x7fffc0bd5700 (LWP 5410) exited]
[Thread 0x7fffc1bd7700 (LWP 5409) exited]
[Thread 0x7fffa5741700 (LWP 5408) exited]
[Thread 0x7fffc23d8700 (LWP 5390) exited]
[Thread 0x7fff597fa700 (LWP 5428) exited]
[Thread 0x7fffa64c7700 (LWP 5424) exited]
[Thread 0x7fffa65af940 (LWP 5423) exited]
[Thread 0x7fffa6633940 (LWP 5422) exited]
[Thread 0x7fffa66b7940 (LWP 5421) exited]
[Thread 0x7fffa673b940 (LWP 5420) exited]
[Thread 0x7fffa67bf940 (LWP 5419) exited]
[Thread 0x7fff58ff9700 (LWP 5429) exited]
[Thread 0x7fff59ffb700 (LWP 5427) exited]
[Thread 0x7fffa4f40700 (LWP 5425) exited]
[Thread 0x7fffa67cb940 (LWP 5418) exited]
[Thread 0x7fffa67d7940 (LWP 5417) exited]
[Thread 0x7fffa67e3940 (LWP 5416) exited]
[Thread 0x7fffa67ef940 (LWP 5415) exited]
[Thread 0x7fffa67fb940 (LWP 5414) exited]
[Thread 0x7fffa7fff700 (LWP 5384) exited]
[Thread 0x7fffc0392940 (LWP 5383) exited]
[Thread 0x7fffc13d6700 (LWP 5382) exited]
[Thread 0x7fffe41f1700 (LWP 5329) exited]
[Thread 0x7fffde7fc700 (LWP 5333) exited]
[Thread 0x7fffdeffd700 (LWP 5332) exited]
[Thread 0x7fffdf7fe700 (LWP 5331) exited]
[Thread 0x7fffcefd5700 (LWP 5345) exited]
[Thread 0x7fffcd513700 (LWP 5346) exited]
[Thread 0x7fffdffff700 (LWP 5330) exited]
[Thread 0x7fff5a7fc700 (LWP 5426) exited]
[Thread 0x7fffc2de4700 (LWP 5352) exited]
[Thread 0x7fffe8a19dc0 (LWP 5319) exited]
[Inferior 1 (process 5319) exited normally]
Starting program: /opt/Ardour-7.0.pre0.2610-dbg/bin/ardour-7.0.pre0.2610 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe41f1700 (LWP 5487)]
[New Thread 0x7fffdffff700 (LWP 5488)]
[New Thread 0x7fffdf7fe700 (LWP 5489)]
[New Thread 0x7fffdeffd700 (LWP 5490)]
[New Thread 0x7fffde7fc700 (LWP 5491)]
[New Thread 0x7fffcefd5700 (LWP 5496)]
[Thread 0x7fffcefd5700 (LWP 5496) exited]
[New Thread 0x7fffcefd5700 (LWP 5497)]
[New Thread 0x7fffcd513700 (LWP 5498)]
[New Thread 0x7fffc3952700 (LWP 5499)]
[New Thread 0x7fffc2e65700 (LWP 5500)]
[New Thread 0x7fffc2de4700 (LWP 5501)]
[Thread 0x7fffc2de4700 (LWP 5501) exited]
[Thread 0x7fffc2e65700 (LWP 5500) exited]
[New Thread 0x7fffc2de4700 (LWP 5506)]
[New Thread 0x7fffc23d8700 (LWP 5507)]
[New Thread 0x7fffc1bd7700 (LWP 5508)]
[New Thread 0x7fffc13d6700 (LWP 5509)]
[New Thread 0x7fffc0bd5700 (LWP 5510)]
[New Thread 0x7fffa7fff700 (LWP 5511)]
[New Thread 0x7fffa77fe700 (LWP 5512)]
[Thread 0x7fffc3952700 (LWP 5499) exited]
[Thread 0x7fffa77fe700 (LWP 5512) exited]
[Thread 0x7fffc13d6700 (LWP 5509) exited]
[Thread 0x7fffc0bd5700 (LWP 5510) exited]
[Thread 0x7fffc1bd7700 (LWP 5508) exited]
[Thread 0x7fffc23d8700 (LWP 5507) exited]
[New Thread 0x7fffc23d8700 (LWP 5523)]
[Thread 0x7fffc23d8700 (LWP 5523) exited]
[Detaching after vfork from child process 5532]
[New Thread 0x7fffc23d8700 (LWP 5533)]
[New Thread 0x7fffc0392940 (LWP 5534)]
[New Thread 0x7fffc0386940 (LWP 5535)]
[New Thread 0x7fffc037a940 (LWP 5536)]
[New Thread 0x7fffc036e940 (LWP 5537)]
[New Thread 0x7fffc0362940 (LWP 5538)]
[New Thread 0x7fffc0356940 (LWP 5539)]
[New Thread 0x7fffc034a940 (LWP 5540)]
[New Thread 0x7fffc033e940 (LWP 5541)]
[New Thread 0x7fffc0332940 (LWP 5542)]
[New Thread 0x7fffc0326940 (LWP 5543)]
[New Thread 0x7fffc031a940 (LWP 5544)]
[New Thread 0x7fffc030e940 (LWP 5545)]
[New Thread 0x7fffc027e940 (LWP 5546)]
[New Thread 0x7fffc1bd7700 (LWP 5547)]
[New Thread 0x7fffc0bd5700 (LWP 5552)]
[New Thread 0x7fffc13d6700 (LWP 5553)]
[New Thread 0x7fffa76c9700 (LWP 5554)]
[New Thread 0x7fffa6ec8700 (LWP 5555)]
[New Thread 0x7fffa66c7700 (LWP 5556)]
[New Thread 0x7fffa5ec6700 (LWP 5557)]
[Detaching after vfork from child process 5558]
[New Thread 0x7fffa5629700 (LWP 5559)]
[Thread 0x7fffa5629700 (LWP 5559) exited]
[Thread 0x7fffa5ec6700 (LWP 5557) exited]
[Thread 0x7fffa6ec8700 (LWP 5555) exited]
[Thread 0x7fffc13d6700 (LWP 5553) exited]
[Thread 0x7fffa66c7700 (LWP 5556) exited]
[Thread 0x7fffc0bd5700 (LWP 5552) exited]
[Thread 0x7fffa7fff700 (LWP 5511) exited]
[Detaching after vfork from child process 5562]
[New Thread 0x7fffa7fff700 (LWP 5563)]
[Thread 0x7fffa7fff700 (LWP 5563) exited]
[New Thread 0x7fffa7fff700 (LWP 5564)]
[New Thread 0x7fffa5629700 (LWP 5567)]
[New Thread 0x7fffc0bd5700 (LWP 5568)]
[New Thread 0x7fffa66c7700 (LWP 5569)]
[New Thread 0x7fffc13d6700 (LWP 5570)]
[New Thread 0x7fffa6ec8700 (LWP 5571)]
[New Thread 0x7fffa5ec5940 (LWP 5572)]
[New Thread 0x7fffa5eb9940 (LWP 5573)]
[New Thread 0x7fffa5ead940 (LWP 5574)]
[New Thread 0x7fffa5ea1940 (LWP 5575)]
[New Thread 0x7fffa5e95940 (LWP 5576)]
[New Thread 0x7fffa5e89940 (LWP 5577)]
[New Thread 0x7fffa5e05940 (LWP 5578)]
[New Thread 0x7fffa5d81940 (LWP 5579)]
[New Thread 0x7fffa5cfd940 (LWP 5580)]
[New Thread 0x7fffa5c79940 (LWP 5581)]
[New Thread 0x7fffa5b91700 (LWP 5582)]
[New Thread 0x7fffa4e28700 (LWP 5583)]
[New Thread 0x7fff2a7fc700 (LWP 5584)]
[New Thread 0x7fff29ffb700 (LWP 5585)]
[New Thread 0x7fff297fa700 (LWP 5586)]
[New Thread 0x7fff28ff9700 (LWP 5587)]
[Thread 0x7fffa7fff700 (LWP 5564) exited]
[Thread 0x7fffa76c9700 (LWP 5554) exited]
[Thread 0x7fffc13d6700 (LWP 5570) exited]
[Thread 0x7fffa66c7700 (LWP 5569) exited]
[Thread 0x7fffc0bd5700 (LWP 5568) exited]
[Thread 0x7fffa5629700 (LWP 5567) exited]
[Thread 0x7fffa6ec8700 (LWP 5571) exited]

Thread 1 "ArdourGUI" received signal SIGINT, Interrupt.
syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
38	../sysdeps/unix/sysv/linux/x86_64/syscall.S: No such file or directory.

Thread 65 (Thread 0x7fff28ff9700 (LWP 5587) "AutomationWatch"):
#0  0x00007fffec936621 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fff28ff8b40, rem=0x7fff28ff8b50) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1  0x00007fffec93be03 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2c49a38 in g_usleep () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff699dbdf in ARDOUR::AutomationWatch::thread (this=0x55555c874b70) at ../libs/ardour/automation_watch.cc:205
#4  0x00007ffff69a30c9 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x55555dd233f0, p=0x55555c874b70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff69a2d5a in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x55555dd23400, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff69a24c7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x55555dd233f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff69a1e55 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#8  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x55555dd233e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x55555dd233c0) at ../libs/pbd/pthread_utils.cc:483
#10 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 64 (Thread 0x7fff297fa700 (LWP 5586) "autoconnect"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55555df2e7dc) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555df2e788, cond=0x55555df2e7b0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555df2e7b0, mutex=0x55555df2e788) at pthread_cond_wait.c:638
#3  0x00007ffff70306e5 in ARDOUR::Session::auto_connect_thread_run (this=0x55555df2c800) at ../libs/ardour/session.cc:7342
#4  0x00007ffff703020c in ARDOUR::Session::auto_connect_thread (arg=0x55555df2c800) at ../libs/ardour/session.cc:7273
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 63 (Thread 0x7fff29ffb700 (LWP 5585) "SessionSignals"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55555df2e768) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555df2e718, cond=0x55555df2e740) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555df2e740, mutex=0x55555df2e718) at pthread_cond_wait.c:638
#3  0x00007ffff70b0809 in ARDOUR::Session::emit_thread_run (this=0x55555df2c800) at ../libs/ardour/session_process.cc:1210
#4  0x00007ffff70b07a6 in ARDOUR::Session::emit_thread (arg=0x55555df2c800) at ../libs/ardour/session_process.cc:1199
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 62 (Thread 0x7fff2a7fc700 (LWP 5584) "Generic MIDI"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fff24194650, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2c18d66 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2c190f2 in g_main_loop_run () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff3c4f1b6 in BaseUI::main_thread (this=0x5555599db6f0) at ../libs/pbd/base_ui.cc:102
#4  0x00007ffff3c5386d in boost::_mfi::mf0<void, BaseUI>::operator() (this=0x55555c2a41f0, p=0x5555599db6f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff3c5353e in boost::_bi::list1<boost::_bi::value<BaseUI*> >::operator()<boost::_mfi::mf0<void, BaseUI>, boost::_bi::list0> (this=0x55555c2a4200, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff3c5312d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >::operator() (this=0x55555c2a41f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff3c52bec in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#8  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x55555c2a41e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x55555c2a41c0) at ../libs/pbd/pthread_utils.cc:483
#10 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 61 (Thread 0x7fffa4e28700 (LWP 5583) "midiUI"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fff3017a830, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2c18d66 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2c190f2 in g_main_loop_run () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff3c4f1b6 in BaseUI::main_thread (this=0x555557ec1ee0) at ../libs/pbd/base_ui.cc:102
#4  0x00007ffff3c5386d in boost::_mfi::mf0<void, BaseUI>::operator() (this=0x55555ce27170, p=0x555557ec1ee0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff3c5353e in boost::_bi::list1<boost::_bi::value<BaseUI*> >::operator()<boost::_mfi::mf0<void, BaseUI>, boost::_bi::list0> (this=0x55555ce27180, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff3c5312d in boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >::operator() (this=0x55555ce27170) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff3c52bec in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#8  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x55555ce27168) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x55555ce27140) at ../libs/pbd/pthread_utils.cc:483
#10 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 60 (Thread 0x7fffa5b91700 (LWP 5582) "butler"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fffa5b902c4, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3c6579e in CrossThreadChannel::poll_for_request (this=0x55555df9eec8) at ../libs/pbd/crossthread.posix.cc:108
#2  0x00007ffff3c6580f in CrossThreadChannel::receive (this=0x55555df9eec8, msg=@0x7fffa5b9039f: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff69b2ea0 in ARDOUR::Butler::thread_work (this=0x55555df9ee30) at ../libs/ardour/butler.cc:188
#4  0x00007ffff69b2c21 in ARDOUR::Butler::_thread_work (arg=0x55555df9ee30) at ../libs/ardour/butler.cc:169
#5  0x00007ffff3c88e7e in fake_thread_start (arg=0x55555cc2dca0) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 59 (Thread 0x7fffa5c79940 (LWP 5581) "RT-4-0x7fffa5c7"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555829e578) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x55555829e578) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x55555829e3e0) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x55555829e3e0) at ../libs/ardour/graph.cc:506
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa5c78ef8, p=0x55555829e3e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa5c78f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa5c78ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffa5c78ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555bb4ff70) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 58 (Thread 0x7fffa5cfd940 (LWP 5580) "RT-3-0x7fffa5cf"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555829e5a0) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x55555829e5a0, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x55555829e5a0, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x55555829e5a0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae72d8 in ARDOUR::Graph::reached_terminal_node (this=0x55555829e3e0) at ../libs/ardour/graph.cc:330
#5  0x00007ffff6aef9b7 in ARDOUR::GraphNode::finish (this=0x55555a109aa0, chain=1) at ../libs/ardour/graphnode.cc:74
#6  0x00007ffff6aea93e in ARDOUR::GraphNode::run (this=0x55555a109aa0, chain=1) at ../libs/ardour/ardour/graphnode.h:65
#7  0x00007ffff6ae811a in ARDOUR::Graph::run_one (this=0x55555829e3e0) at ../libs/ardour/graph.cc:475
#8  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x55555829e3e0) at ../libs/ardour/graph.cc:506
#9  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa5cfcef8, p=0x55555829e3e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#10 0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa5cfcf08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#11 0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa5cfcef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#12 0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffa5cfcef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#14 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555e0829c0) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#15 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#16 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 57 (Thread 0x7fffa5d81940 (LWP 5579) "RT-2-0x7fffa5d8"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555829e578) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x55555829e578) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x55555829e3e0) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x55555829e3e0) at ../libs/ardour/graph.cc:506
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa5d80ef8, p=0x55555829e3e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa5d80f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa5d80ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffa5d80ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x555559366680) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 56 (Thread 0x7fffa5e05940 (LWP 5578) "RT-1-0x7fffa5e0"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555829e578) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x55555829e578) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x55555829e3e0) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae8485 in ARDOUR::Graph::helper_thread (this=0x55555829e3e0) at ../libs/ardour/graph.cc:506
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa5e04ef8, p=0x55555829e3e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa5e04f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa5e04ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffa5e04ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555e083700) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 55 (Thread 0x7fffa5e89940 (LWP 5577) "RT-main-0x7fffa"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555829e578) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x55555829e578, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x55555829e578) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6ae7f8e in ARDOUR::Graph::run_one (this=0x55555829e3e0) at ../libs/ardour/graph.cc:455
#5  0x00007ffff6ae888c in ARDOUR::Graph::main_thread (this=0x55555829e3e0) at ../libs/ardour/graph.cc:560
#6  0x00007ffff6aef2dd in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa5e88ef8, p=0x55555829e3e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#7  0x00007ffff6aeea92 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa5e88f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#8  0x00007ffff6aedeef in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa5e88ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#9  0x00007ffff6aed793 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 0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x7fffa5e88ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007fffcc1f81e1 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555e1517d0) at ../libs/backends/alsa/alsa_audiobackend.cc:1209
#12 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 54 (Thread 0x7fffa5e95940 (LWP 5576) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff74001eb0) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff74001eb0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 53 (Thread 0x7fffa5ea1940 (LWP 5575) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff74001eb0) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff74001eb0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 52 (Thread 0x7fffa5ead940 (LWP 5574) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff74001eb0) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff74001eb0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 51 (Thread 0x7fffa5eb9940 (LWP 5573) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff74001eb0) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff74001eb0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 50 (Thread 0x7fffa5ec5940 (LWP 5572) "RTTaskList"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fff74001eb0) at ../sysdeps/nptl/futex-internal.h:323
#1  do_futex_wait (sem=sem@entry=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:112
#2  0x00007fffeed3d278 in __new_sem_wait_slow (sem=0x7fff74001eb0, abstime=0x0, clockid=0) at sem_waitcommon.c:184
#3  0x00007ffff6aea8d4 in PBD::Semaphore::wait (this=0x7fff74001eb0) at ../libs/pbd/pbd/semutils.h:64
#4  0x00007ffff6feb105 in ARDOUR::RTTaskList::run (this=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:112
#5  0x00007ffff6feaef4 in ARDOUR::RTTaskList::_thread_run (arg=0x7fff74001e80) at ../libs/ardour/rt_tasklist.cc:68
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7fffc1bd7700 (LWP 5547) "ALSA-MIDI-LIST"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fff70000b80, nfds=1, timeout=200) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc1f93b0 in ARDOUR::AlsaAudioBackend::midi_device_thread (this=0x555557c50980) at ../libs/backends/alsa/alsa_audiobackend.cc:1407
#2  0x00007fffcc1f9248 in ARDOUR::AlsaAudioBackend::_midi_device_thread (arg=0x555557c50980) at ../libs/backends/alsa/alsa_audiobackend.cc:1370
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7fffc027e940 (LWP 5546) "audioengine"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69149 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff4f5212f in SerializedRCUManager<Temporal::TempoMap>::write_copy (this=0x5555572d9aa0 <Temporal::TempoMap::_map_mgr>) at ../libs/pbd/pbd/rcu.h:162
#3  0x00007ffff4f4440a in Temporal::TempoMap::write_copy () at ../libs/temporal/tempo.cc:3193
#4  0x00007ffff7030ab8 in ARDOUR::Session::maybe_update_tempo_from_midiclock_tempo (this=0x55555df2c800, bpm=132.521133) at ../libs/ardour/session.cc:7380
#5  0x00007ffff6dc2330 in ARDOUR::MIDIClock_TransportMaster::update_midi_clock (this=0x5555579bd220, timestamp=1007433) at ../libs/ardour/midi_clock_slave.cc:293
#6  0x00007ffff6dc7e0e in boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>::operator() (this=0x7fff7c0133e8, p=0x5555579bd220, a1=..., a2=1007433) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:280
#7  0x00007ffff6dc6f4c in boost::_bi::list3<boost::_bi::value<ARDOUR::MIDIClock_TransportMaster*>, boost::arg<1>, boost::arg<2> >::operator()<boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>, boost::_bi::rrlist2<MIDI::Parser&, long> > (this=0x7fff7c0133f8, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:398
#8  0x00007ffff6dc5d7a in boost::_bi::bind_t<void, boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>, boost::_bi::list3<boost::_bi::value<ARDOUR::MIDIClock_TransportMaster*>, boost::arg<1>, boost::arg<2> > >::operator()<MIDI::Parser&, long> (this=0x7fff7c0133e8, a1=..., a2=@0x7fffc027cf58: 1007433) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1318
#9  0x00007ffff6dc5566 in boost::detail::function::void_function_obj_invoker2<boost::_bi::bind_t<void, boost::_mfi::mf2<void, ARDOUR::MIDIClock_TransportMaster, MIDI::Parser&, long>, boost::_bi::list3<boost::_bi::value<ARDOUR::MIDIClock_TransportMaster*>, boost::arg<1>, boost::arg<2> > >, void, MIDI::Parser&, long>::invoke (function_obj_ptr=..., a0=..., a1=1007433) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#10 0x00007ffff55d7bb1 in boost::function2<void, MIDI::Parser&, long>::operator() (this=0x7fff7c0133e0, a0=..., a1=1007433) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#11 0x00007ffff55d5751 in PBD::Signal2<void, MIDI::Parser&, long, PBD::OptionalLastValue<void> >::operator() (this=0x5555579c19f0, a1=..., a2=1007433) at libs/pbd/pbd/signals_generated.h:1136
#12 0x00007ffff55d10d6 in MIDI::Parser::realtime_msg (this=0x5555579bd4c0, inbyte=248 '\370') at ../libs/midi++2/parser.cc:552
#13 0x00007ffff55d0b68 in MIDI::Parser::scanner (this=0x5555579bd4c0, inbyte=248 '\370') at ../libs/midi++2/parser.cc:394
#14 0x00007ffff6df7d59 in ARDOUR::MidiPort::read_and_parse_entire_midi_buffer_with_no_speed_adjustment (this=0x555557a63030, nframes=1024, parser=..., now=1006592) at ../libs/ardour/midi_port.cc:219
#15 0x00007ffff6dc115e in ARDOUR::MIDIClock_TransportMaster::pre_process (this=0x5555579bd220, nframes=1024, now=1006592, session_pos=...) at ../libs/ardour/midi_clock_slave.cc:133
#16 0x00007ffff7185f78 in ARDOUR::TransportMasterManager::pre_process_transport_masters (this=0x55555738dc00, nframes=1024, now=1006592) at ../libs/ardour/transport_master_manager.cc:172
#17 0x00007ffff6932d88 in ARDOUR::AudioEngine::process_callback (this=0x5555573dcfe0, nframes=1024) at ../libs/ardour/audioengine.cc:491
#18 0x00007fffcc1fcb6e in ARDOUR::AlsaAudioBackend::main_process_thread (this=0x555557c50980) at ../libs/backends/alsa/alsa_audiobackend.cc:1964
#19 0x00007fffcc1f5c0d in pthread_process (arg=0x555557c50980) at ../libs/backends/alsa/alsa_audiobackend.cc:803
#20 0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#21 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7fffc030e940 (LWP 5545) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x555557f2c340, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x5555577624d0) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x5555577624f0) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7fffc031a940 (LWP 5544) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5555577460b0) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557746060, cond=0x555557746088) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557746088, mutex=0x555557746060) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557746030) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557746050) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fffc0326940 (LWP 5543) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x55555777b680, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x55555765d6e0) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x55555765d700) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fffc0332940 (LWP 5542) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557730150) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557730100, cond=0x555557730128) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557730128, mutex=0x555557730100) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x5555577300d0) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x5555577300f0) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fffc033e940 (LWP 5541) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x5555577fcd60, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x555557607e00) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x555557607e20) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fffc034a940 (LWP 5540) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557bd7190) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557bd7140, cond=0x555557bd7168) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557bd7168, mutex=0x555557bd7140) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557bd7110) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557bd7130) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fffc0356940 (LWP 5539) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x555557750790, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x555557b20990) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x555557b209b0) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fffc0362940 (LWP 5538) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557bea190) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557bea140, cond=0x555557bea168) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557bea168, mutex=0x555557bea140) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557bea110) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557bea130) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fffc036e940 (LWP 5537) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x55555774de90, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x555557bec000) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x555557bec020) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fffc037a940 (LWP 5536) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557be7f90) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557be7f40, cond=0x555557be7f68) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557be7f68, mutex=0x555557be7f40) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557be7f10) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557be7f30) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fffc0386940 (LWP 5535) "AlsaMidiIO"):
#0  0x00007fffec963def in __GI___poll (fds=0x555557614cd0, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffcc225780 in ARDOUR::AlsaSeqMidiIn::main_process_thread (this=0x555557634800) at ../libs/backends/alsa/alsa_sequencer.cc:246
#2  0x00007fffcc22165d in pthread_process (arg=0x555557634820) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fffc0392940 (LWP 5534) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555557649880) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555557649830, cond=0x555557649858) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555557649858, mutex=0x555557649830) at pthread_cond_wait.c:638
#3  0x00007fffcc2251ac in ARDOUR::AlsaSeqMidiOut::main_process_thread (this=0x555557649800) at ../libs/backends/alsa/alsa_sequencer.cc:162
#4  0x00007fffcc22165d in pthread_process (arg=0x555557649820) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffc23d8700 (LWP 5533) "ExecStdOut"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fffc23d5c50, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3c9fd66 in PBD::SystemExec::output_interposer (this=0x55555786b010) at ../libs/pbd/system_exec.cc:871
#2  0x00007ffff3c9eed0 in interposer_thread (arg=0x55555786b010) at ../libs/pbd/system_exec.cc:282
#3  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fffc2de4700 (LWP 5506) "gmain"):
#0  0x00007fffec963def in __GI___poll (fds=0x55555761b940, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2c18d66 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2c18e7c in g_main_context_iteration () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2c18ec1 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2c481e5 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#5  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffcd513700 (LWP 5498) "DeviceList"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6933ca2 in ARDOUR::AudioEngine::do_devicelist_update (this=0x5555573dcfe0) at ../libs/ardour/audioengine.cc:750
#3  0x00007ffff6941c8f in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x555557402520, p=0x5555573dcfe0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69411ca in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x555557402530, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6940833 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x555557402520) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff693f9bb in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#7  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x555557402518) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555574024f0) at ../libs/pbd/pthread_utils.cc:483
#9  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffcefd5700 (LWP 5497) "EngineWatchdog"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6933a63 in ARDOUR::AudioEngine::do_reset_backend (this=0x5555573dcfe0) at ../libs/ardour/audioengine.cc:714
#3  0x00007ffff6941c8f in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555573dbb40, p=0x5555573dcfe0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff69411ca in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555573dbb50, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6940833 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555573dbb40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff693f9bb in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#7  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573dbb38) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573dbb10) at ../libs/pbd/pthread_utils.cc:483
#9  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fffde7fc700 (LWP 5491) "Analyzer"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff68e4104 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:95
#3  0x000055555644c22d in sigc::pointer_functor0<void>::operator() (this=0x5555573c96b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00007ffff68e747c in boost::detail::function::void_function_obj_invoker0<sigc::pointer_functor0<void>, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#5  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573c96a8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#6  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573c9680) at ../libs/pbd/pthread_utils.cc:483
#7  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffdeffd700 (LWP 5490) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff714e712 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff7b3929f in boost::detail::function::void_function_invoker0<void (*)(), void>::invoke (function_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:118
#4  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573c9f78) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#5  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573c9f50) at ../libs/pbd/pthread_utils.cc:483
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffdf7fe700 (LWP 5489) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69e4c in g_cond_wait () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff714e712 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff7b3929f in boost::detail::function::void_function_invoker0<void (*)(), void>::invoke (function_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:118
#4  0x0000555555b2fdf4 in boost::function0<void>::operator() (this=0x5555573cb568) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#5  0x00007ffff3c89917 in PBD::Thread::_run (arg=0x5555573cb540) at ../libs/pbd/pthread_utils.cc:483
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffdffff700 (LWP 5488) "LXVSTEventLoop"):
#0  0x00007fffec936621 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffdfffebb0, rem=0x7fffdfffebc0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1  0x00007fffec93be03 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff2c49a38 in g_usleep () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#3  0x00005555568eaea0 in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fffe41f1700 (LWP 5487) "Trigger Worker"):
#0  0x00007fffec963def in __GI___poll (fds=0x7fffe41f0b84, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3c6579e in CrossThreadChannel::poll_for_request (this=0x5555573474b8) at ../libs/pbd/crossthread.posix.cc:108
#2  0x00007ffff3c6580f in CrossThreadChannel::receive (this=0x5555573474b8, msg=@0x7fffe41f0bef: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff71abbe3 in ARDOUR::TriggerBoxThread::thread_work (this=0x555557347490) at ../libs/ardour/triggerbox.cc:4418
#4  0x00007ffff71abb79 in ARDOUR::TriggerBoxThread::_thread_work (arg=0x555557347490) at ../libs/ardour/triggerbox.cc:4406
#5  0x00007ffff3c88e7e in fake_thread_start (arg=0x555557385110) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007fffeed33ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fffec96faef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffe8a19dc0 (LWP 5480) "ArdourGUI"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2c69149 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#2  0x0000555555b16344 in Glib::Threads::Mutex::Lock::Lock (this=0x7fffffffbe10, mutex=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/glibmm-2.4/glibmm/threads.h:643
#3  0x00007ffff6b19003 in ARDOUR::IO::connect_ports_to_bundle (this=0x55555def3dd0, c=..., exclusive=true, allow_partial=false, src=0x55555c3828c0) at ../libs/ardour/io.cc:1318
#4  0x00007ffff6b18f7d in ARDOUR::IO::connect_ports_to_bundle (this=0x55555def3dd0, c=..., exclusive=true, src=0x55555c3828c0) at ../libs/ardour/io.cc:1311
#5  0x0000555556053d26 in IOButton::bundle_chosen (this=0x55555c3828c0, c=...) at ../gtk2_ardour/io_button.cc:123
#6  0x00005555560614ea in sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> >::operator() (this=0x5555579da780, _A_a1=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1856
#7  0x000055555606035b in sigc::adaptor_functor<sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> > >::operator()<boost::shared_ptr<ARDOUR::Bundle>&> (this=0x5555579da778, _A_arg1=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#8  0x000055555605f0a0 in sigc::bind_functor<-1, sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> >, boost::shared_ptr<ARDOUR::Bundle>, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator() (this=0x5555579da770) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1123
#9  0x000055555605d935 in sigc::internal::slot_call0<sigc::bind_functor<-1, sigc::bound_mem_functor1<void, IOButton, boost::shared_ptr<ARDOUR::Bundle> >, boost::shared_ptr<ARDOUR::Bundle>, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void>::call_it (rep=0x5555579da740) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#10 0x00007ffff31c1c88 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglibmm-2.4.so.1
#11 0x00007ffff2f27945 in g_closure_invoke () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#12 0x00007ffff2f3901b in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#13 0x00007ffff2f42c30 in g_signal_emit_valist () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#14 0x00007ffff2f43082 in g_signal_emit () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#15 0x00007ffff238f1fe in gtk_widget_activate () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#16 0x00007ffff22257a2 in gtk_menu_shell_activate_item () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#17 0x00007ffff2225bf6 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#18 0x00007ffff22177f6 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#19 0x00007ffff220bcac in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#20 0x00007ffff2f27945 in g_closure_invoke () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#21 0x00007ffff2f395a0 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#22 0x00007ffff2f4269b in g_signal_emit_valist () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#23 0x00007ffff2f43082 in g_signal_emit () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgobject-2.0.so.0
#24 0x00007ffff239064c in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#25 0x00007ffff220a29d in gtk_propagate_event () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#26 0x00007ffff220a723 in gtk_main_do_event () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#27 0x00007ffff1e26b4c in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgdk-x11-2.0.so.0
#28 0x00007ffff2c18b67 in g_main_context_dispatch () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#29 0x00007ffff2c18dd0 in ?? () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#30 0x00007ffff2c190f2 in g_main_loop_run () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libglib-2.0.so.0
#31 0x00007ffff22093e7 in gtk_main () from /opt/Ardour-7.0.pre0.2610-dbg/lib/libgtk-x11-2.0.so.0
#32 0x00007ffff4035c6e in Gtkmm2ext::UI::run (this=0x5555579ec090, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:309
#33 0x000055555614565c in main (argc=1, argv=0x7fffffffd068) at ../gtk2_ardour/main.cc:423
gdb-221016-3.txt (60,974 bytes)   

x42

2022-10-16 21:13

administrator   ~0026612

I have not been able to reproduce this with 7.0

Lock (this=0x7fffffffbe10, mutex=...) looks like memory corruption. This will be hard to debug.

Issue History

Date Modified Username Field Change
2022-10-16 19:41 martibs New Issue
2022-10-16 19:41 martibs File Added: gdb-221016-2.txt
2022-10-16 19:41 martibs File Added: gdb-221016-3.txt
2022-10-16 21:13 x42 Note Added: 0026612
2022-10-16 21:45 x42 Relationship added related to 0008993