rich@Huxtable:~$ /opt/Ardour-6.2.0/bin/ardour6 --gdb GNU gdb (Ubuntu 9.1-0ubuntu1) 9.1 Copyright (C) 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /opt/Ardour-6.2.0/bin/ardour-6.2.0... (No debugging symbols found in /opt/Ardour-6.2.0/bin/ardour-6.2.0) (gdb) run Starting program: /opt/Ardour-6.2.0/bin/ardour-6.2.0 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Ardour6.2.0 (built using 6.2 and GCC version 6.3.0 20170516) Ardour: [INFO]: Your system is configured to limit Ardour to 1048576 open files Ardour: [INFO]: Loading system configuration file /opt/Ardour-6.2.0/etc/system_config Ardour: [INFO]: Loading user configuration file /home/rich/.config/ardour6/config [New Thread 0x7fffe92db700 (LWP 2744)] Ardour: [INFO]: CPU vendor: GenuineIntel Ardour: [INFO]: CPU brand: Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz Ardour: [INFO]: Using SSE optimized routines [New Thread 0x7fffe8ada700 (LWP 2745)] [New Thread 0x7fffe3fff700 (LWP 2746)] [New Thread 0x7fffe37fe700 (LWP 2747)] Ardour: [INFO]: Loading plugin meta data file /opt/Ardour-6.2.0/share/plugin_metadata/plugin_tags [New Thread 0x7fffe2624700 (LWP 2750)] [Thread 0x7fffe2624700 (LWP 2750) exited] [New Thread 0x7fffe2624700 (LWP 2751)] [New Thread 0x7fffd7bdc700 (LWP 2752)] [New Thread 0x7fffd6281700 (LWP 2753)] Cannot xinstall SIGPIPE error handler Ardour: [INFO]: Loading default ui configuration file /opt/Ardour-6.2.0/etc/default_ui_config Ardour: [INFO]: Loading user ui configuration file /home/rich/.config/ardour6/ui_config Ardour: [INFO]: Loading 449 MIDI patches from /opt/Ardour-6.2.0/share/patchfiles Ardour: [INFO]: Loading colour file /opt/Ardour-6.2.0/share/themes/dark-ardour.colors Ardour: [INFO]: Loading ui configuration file /opt/Ardour-6.2.0/etc/clearlooks.rc Ardour: [INFO]: Loading bindings from /opt/Ardour-6.2.0/etc/ardour.keys Loading ui configuration file /opt/Ardour-6.2.0/etc/clearlooks.rc [New Thread 0x7fffd56f8700 (LWP 2754)] [New Thread 0x7fffd5677700 (LWP 2755)] [Thread 0x7fffd5677700 (LWP 2755) exited] [New Thread 0x7fffd5677700 (LWP 2756)] [New Thread 0x7fffd4947700 (LWP 2757)] [New Thread 0x7fffbbfff700 (LWP 2758)] [New Thread 0x7fffbb7fe700 (LWP 2759)] [New Thread 0x7fffbaffd700 (LWP 2760)] [New Thread 0x7fffba7fc700 (LWP 2761)] Found nothing along /home/rich/.config/ardour6/templates:/opt/Ardour-6.2.0/share/templates [Thread 0x7fffba7fc700 (LWP 2761) exited] [Thread 0x7fffbaffd700 (LWP 2760) exited] [Thread 0x7fffbb7fe700 (LWP 2759) exited] [Thread 0x7fffd4947700 (LWP 2757) exited] [Thread 0x7fffd56f8700 (LWP 2754) exited] [New Thread 0x7fffba7fc700 (LWP 2762)] [New Thread 0x7fffbaffd700 (LWP 2763)] [Thread 0x7fffbaffd700 (LWP 2763) exited] [Thread 0x7fffba7fc700 (LWP 2762) exited] [Thread 0x7fffd6281700 (LWP 2753) exited] [Detaching after vfork from child process 2764] [New Thread 0x7fffbaffd700 (LWP 2765)] [New Thread 0x7fffd4038900 (LWP 2766)] [New Thread 0x7fffba7fc700 (LWP 2767)] protocol Wiimote not found no more csLADSPA plugins error: failed to open file /usr/lib/lv2/gx_colwah.lv2/manifest.ttl (No such file or directory) lilv_world_load_file(): error: Error loading file `file:///usr/lib/lv2/gx_colwah.lv2/manifest.ttl' lilv_world_load_bundle(): error: Error reading file:///usr/lib/lv2/gx_colwah.lv2/manifest.ttl Scanning folders for bundled LV2s: /opt/Ardour-6.2.0/lib/LV2 error: failed to open file /usr/lib/lv2/gx_colwah.lv2/manifest.ttl (No such file or directory) lilv_world_load_file(): error: Error loading file `file:///usr/lib/lv2/gx_colwah.lv2/manifest.ttl' lilv_world_load_bundle(): error: Error reading file:///usr/lib/lv2/gx_colwah.lv2/manifest.ttl error: failed to open file /usr/lib/lv2/gx_wah.lv2/gx_colwah.ttl (No such file or directory) lilv_world_load_file(): error: Error loading file `file:///usr/lib/lv2/gx_wah.lv2/gx_colwah.ttl' lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name [Thread 0x7fffbbfff700 (LWP 2758) exited] [New Thread 0x7fffbbfff700 (LWP 2768)] [New Thread 0x7fffd4947700 (LWP 2769)] [New Thread 0x7fffbb7fe700 (LWP 2770)] [New Thread 0x7fffb9c06700 (LWP 2771)] [Thread 0x7fffb9c06700 (LWP 2771) exited] [Thread 0x7fffbb7fe700 (LWP 2770) exited] [Thread 0x7fffd4947700 (LWP 2769) exited] [Detaching after vfork from child process 2772] [New Thread 0x7fffb9c06700 (LWP 2773)] [Thread 0x7fffb9c06700 (LWP 2773) exited] [Detaching after vfork from child process 2774] [New Thread 0x7fffb9c06700 (LWP 2775)] [Thread 0x7fffb9c06700 (LWP 2775) exited] Set cursor set to default loading from /home/rich/Attwood-ComeHolyGhost as Attwood-ComeHolyGhost templ is_new 0 bp 0 [New Thread 0x7fffd4014900 (LWP 2777)] [New Thread 0x7fffb9404900 (LWP 2778)] [New Thread 0x7fffb93f8900 (LWP 2779)] [New Thread 0x7fffb93ec900 (LWP 2780)] [New Thread 0x7fffb93c8900 (LWP 2781)] [New Thread 0x7fffb93a4900 (LWP 2782)] [New Thread 0x7fffb9381700 (LWP 2783)] [New Thread 0x7fffb9c06700 (LWP 2784)] [New Thread 0x7fffd4947700 (LWP 2785)] [New Thread 0x7fffbb7fe700 (LWP 2786)] [New Thread 0x7fff8ebea700 (LWP 2787)] locate took 38234 usecs for 26 tracks = 1471 per track Reading Piano-Soprano took 1225 microseconds, final size = 442 Reading Piano-Alto took 773 microseconds, final size = 270 Reading Piano-Tenor took 718 microseconds, final size = 254 Reading Piano-Bass took 722 microseconds, final size = 262 Reading Organ - RH took 866 microseconds, final size = 394 Reading Organ - LH took 592 microseconds, final size = 258 Reading Organ - Pedal took 240 microseconds, final size = 86 locate took 678064 usecs for 26 tracks = 26079 per track [New Thread 0x7fff8e1e9700 (LWP 2788)] [New Thread 0x7fff8d9e8700 (LWP 2789)] [New Thread 0x7fff8d1e7700 (LWP 2790)] [Thread 0x7fffbbfff700 (LWP 2768) exited] --Type for more, q to quit, c to continue without paging-- Thread 21 "audioengine" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffd4038900 (LWP 2766)] 0x00007fffee88eee2 in __dynamic_cast () from /lib/x86_64-linux-gnu/libstdc++.so.6 (gdb) thread apply all bt Thread 42 (Thread 0x7fff8d1e7700 (LWP 2790)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff7b9a21c in ArdourWaveView::WaveViewDrawRequestQueue::dequeue(bool) () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #3 0x00007ffff7b9a5cc in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #4 0x00007ffff7b9a61b in ArdourWaveView::WaveViewDrawingThread::run() () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #5 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #6 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #7 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #8 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 41 (Thread 0x7fff8d9e8700 (LWP 2789)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff7b9a21c in ArdourWaveView::WaveViewDrawRequestQueue::dequeue(bool--Type for more, q to quit, c to continue without paging-- ) () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #3 0x00007ffff7b9a5cc in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #4 0x00007ffff7b9a61b in ArdourWaveView::WaveViewDrawingThread::run() () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #5 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #6 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #7 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #8 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 40 (Thread 0x7fff8e1e9700 (LWP 2788)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff7b9a21c in ArdourWaveView::WaveViewDrawRequestQueue::dequeue(bool) () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #3 0x00007ffff7b9a5cc in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #4 0x00007ffff7b9a61b in ArdourWaveView::WaveViewDrawingThread::run() () from /opt/Ardour-6.2.0/lib/libwaveview.so.0 #5 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 --Type for more, q to quit, c to continue without paging-- #6 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #7 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #8 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 39 (Thread 0x7fff8ebea700 (LWP 2787)): #0 0x00007fffee53c361 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fff8ebe9cc0, rem=0x7fff8ebe9cd0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48 #1 0x00007fffee541eb7 in __GI___nanosleep (requested_time=, remaining=) at nanosleep.c:27 #2 0x00007ffff488da38 in g_usleep () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #3 0x00007ffff712ecb0 in ARDOUR::AutomationWatch::thread() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #5 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #6 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #7 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 --Type for more, q to quit, c to continue without paging-- Thread 38 (Thread 0x7fffbb7fe700 (LWP 2786)): #0 futex_wait_cancelable (private=, expected=0, futex_word=0x555558703cd0) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555558703c80, cond=0x555558703ca8) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x555558703ca8, mutex=0x555558703c80) at pthread_cond_wait.c:638 #3 0x00007ffff7551b68 in ARDOUR::Session::auto_connect_thread_run() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff7551cc8 in ARDOUR::Session::auto_connect_thread(void*) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 37 (Thread 0x7fffd4947700 (LWP 2785)): #0 futex_wait_cancelable (private=, expected=0, futex_word=0x555558703c60) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555558703c10, cond=0x555558703c38) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x555558703c38, mutex=0x555558703c10) at pthread_cond_wait.c:638 --Type for more, q to quit, c to continue without paging-- #3 0x00007ffff75c5583 in ARDOUR::Session::emit_thread_run() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff75c55b8 in ARDOUR::Session::emit_thread(void*) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 36 (Thread 0x7fffb9c06700 (LWP 2784)): #0 0x00007fffee57196f in __GI___poll (fds=0x7fff9417a800, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff485cd66 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff485d0f2 in g_main_loop_run () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #3 0x00007ffff59d88a8 in BaseUI::main_thread() () from /opt/Ardour-6.2.0/lib/libpbd.so.4 #4 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #5 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #6 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #7 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 --Type for more, q to quit, c to continue without paging-- Thread 35 (Thread 0x7fffb9381700 (LWP 2783)): #0 0x00007fffee57196f in __GI___poll (fds=0x7fffb9380ae8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff59e2967 in CrossThreadChannel::poll_for_request() () from /opt/Ardour-6.2.0/lib/libpbd.so.4 #2 0x00007ffff59e29c6 in CrossThreadChannel::receive(char&, bool) () from /opt/Ardour-6.2.0/lib/libpbd.so.4 #3 0x00007ffff713c460 in ARDOUR::Butler::thread_work() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff713d5c2 in ARDOUR::Butler::_thread_work(void*) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007ffff5a0b086 in ?? () from /opt/Ardour-6.2.0/lib/libpbd.so.4 #6 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #7 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 34 (Thread 0x7fffb93a4900 (LWP 2782)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555769d5e0) at ../sysdeps/nptl/futex-internal.h:320 #1 do_futex_wait (sem=sem@entry=0x55555769d5e0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 --Type for more, q to quit, c to continue without paging-- #2 0x00007ffff098b4e8 in __new_sem_wait_slow (sem=0x55555769d5e0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007ffff720757c in ARDOUR::Graph::run_one() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff7207898 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007fffd682ca51 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) () from /opt/Ardour-6.2.0/lib/backends/libalsa_audiobackend.so #6 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #7 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 33 (Thread 0x7fffb93c8900 (LWP 2781)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555769d5e0) at ../sysdeps/nptl/futex-internal.h:320 #1 do_futex_wait (sem=sem@entry=0x55555769d5e0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007ffff098b4e8 in __new_sem_wait_slow (sem=0x55555769d5e0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007ffff720757c in ARDOUR::Graph::run_one() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff7207898 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-6.2--Type for more, q to quit, c to continue without paging-- .0/lib/libardour.so.3 #5 0x00007fffd682ca51 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) () from /opt/Ardour-6.2.0/lib/backends/libalsa_audiobackend.so #6 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #7 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 32 (Thread 0x7fffb93ec900 (LWP 2780)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555769d608) at ../sysdeps/nptl/futex-internal.h:320 #1 do_futex_wait (sem=sem@entry=0x55555769d608, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007ffff098b4e8 in __new_sem_wait_slow (sem=0x55555769d608, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007ffff7207496 in ARDOUR::Graph::reached_terminal_node() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff7207b80 in ARDOUR::Graph::main_thread() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007fffd682ca51 in ARDOUR::AlsaAudioBackend::alsa_process_thread(void*) () from /opt/Ardour-6.2.0/lib/backends/libalsa_audiobackend.so #6 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 --Type for more, q to quit, c to continue without paging-- #7 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 31 (Thread 0x7fffb93f8900 (LWP 2779)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555827e3a0) at ../sysdeps/nptl/futex-internal.h:320 #1 do_futex_wait (sem=sem@entry=0x55555827e3a0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007ffff098b4e8 in __new_sem_wait_slow (sem=0x55555827e3a0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007ffff7538c49 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff7539068 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 30 (Thread 0x7fffb9404900 (LWP 2778)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555827e3a0) at ../sysdeps/nptl/futex-internal.h:320 #1 do_futex_wait (sem=sem@entry=0x55555827e3a0, abstime=0x0, clockid=0) at sem_--Type for more, q to quit, c to continue without paging-- waitcommon.c:112 #2 0x00007ffff098b4e8 in __new_sem_wait_slow (sem=0x55555827e3a0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007ffff7538c49 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff7539068 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 29 (Thread 0x7fffd4014900 (LWP 2777)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555827e3a0) at ../sysdeps/nptl/futex-internal.h:320 #1 do_futex_wait (sem=sem@entry=0x55555827e3a0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007ffff098b4e8 in __new_sem_wait_slow (sem=0x55555827e3a0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007ffff7538c49 in ARDOUR::RTTaskList::run() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff7539068 in ARDOUR::RTTaskList::_thread_run(void*) () from /opt/Ardour-6.2.0/lib/libardour.so.3 --Type for more, q to quit, c to continue without paging-- #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 22 (Thread 0x7fffba7fc700 (LWP 2767)): #0 0x00007fffee57196f in __GI___poll (fds=0x7fffbc0016f0, nfds=1, timeout=200) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fffd6831e14 in ARDOUR::AlsaAudioBackend::midi_device_thread() () from /opt/Ardour-6.2.0/lib/backends/libalsa_audiobackend.so #2 0x00007fffd6831e69 in ARDOUR::AlsaAudioBackend::_midi_device_thread(void*) () from /opt/Ardour-6.2.0/lib/backends/libalsa_audiobackend.so #3 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #4 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 21 (Thread 0x7fffd4038900 (LWP 2766)): #0 0x00007fffee88eee2 in __dynamic_cast () from /lib/x86_64-linux-gnu/libstdc++.so.6 #1 0x00007ffff71131fc in ARDOUR::Automatable::automation_run(long, unsigned int, bool) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #2 0x00007ffff750bf22 in ARDOUR::Route::silence_unlocked(long) () from /opt/Ard--Type for more, q to quit, c to continue without paging-- our-6.2.0/lib/libardour.so.3 #3 0x00007ffff750c053 in ARDOUR::Route::silence(long) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #4 0x00007ffff75c3ecb in ARDOUR::Session::process_with_events(unsigned int) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #5 0x00007ffff75c504a in ARDOUR::Session::process(unsigned int) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #6 0x00007ffff70e9348 in ARDOUR::AudioEngine::process_callback(unsigned int) () from /opt/Ardour-6.2.0/lib/libardour.so.3 #7 0x00007fffd683376a in ARDOUR::AlsaAudioBackend::main_process_thread() () from /opt/Ardour-6.2.0/lib/backends/libalsa_audiobackend.so #8 0x00007fffd68340b9 in ?? () from /opt/Ardour-6.2.0/lib/backends/libalsa_audiobackend.so #9 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #10 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 20 (Thread 0x7fffbaffd700 (LWP 2765)): #0 0x00007fffee573f9b in __GI___select (nfds=1, readfds=0x7fffbaffac70, writefds=0x0, exceptfds=0x0, timeout=0x7fffbaffac50) at ../sysdeps/unix/sysv/linux/select.c:41 #1 0x00007ffff5a1bb76 in PBD::SystemExec::output_interposer() () from /opt/Ardo--Type for more, q to quit, c to continue without paging-- ur-6.2.0/lib/libpbd.so.4 #2 0x00007ffff5a1bcf8 in ?? () from /opt/Ardour-6.2.0/lib/libpbd.so.4 #3 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #4 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7fffd5677700 (LWP 2756)): #0 0x00007fffee57196f in __GI___poll (fds=0x55555700e050, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff485cd66 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff485ce7c in g_main_context_iteration () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #3 0x00007ffff485cec1 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #4 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7fffd7bdc700 (LWP 2752)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.--Type for more, q to quit, c to continue without paging-- so.0 #2 0x00007ffff70e88a5 in ARDOUR::AudioEngine::do_devicelist_update() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #3 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #4 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7fffe2624700 (LWP 2751)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff70ea656 in ARDOUR::AudioEngine::do_reset_backend() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #3 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #4 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 --Type for more, q to quit, c to continue without paging-- Thread 5 (Thread 0x7fffe37fe700 (LWP 2747)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff70a8df7 in ARDOUR::Analyser::work() () from /opt/Ardour-6.2.0/lib/libardour.so.3 #3 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #4 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7fffe3fff700 (LWP 2746)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff7635357 in ?? () from /opt/Ardour-6.2.0/lib/libardour.so.3 #3 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #4 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:--Type for more, q to quit, c to continue without paging-- 95 Thread 3 (Thread 0x7fffe8ada700 (LWP 2745)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff48ade4c in g_cond_wait () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff7635357 in ?? () from /opt/Ardour-6.2.0/lib/libardour.so.3 #3 0x00007ffff4df6c4d in ?? () from /opt/Ardour-6.2.0/lib/libglibmm-2.4.so.1 #4 0x00007ffff488c1e5 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #5 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #6 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7fffe92db700 (LWP 2744)): #0 0x00007fffee53c361 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffe92dab40, rem=0x7fffe92dab50) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48 #1 0x00007fffee541eb7 in __GI___nanosleep (requested_time=, remaining=) at nanosleep.c:27 #2 0x00007ffff488da38 in g_usleep () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #3 0x00005555561fc99b in ?? () --Type for more, q to quit, c to continue without paging-- #4 0x00007ffff0981609 in start_thread (arg=) at pthread_create.c:477 #5 0x00007fffee57e103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7fffea604d40 (LWP 2739)): #0 0x00007fffee57196f in __GI___poll (fds=0x555556bf3d00, nfds=4, timeout=27) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff485cd66 in ?? () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #2 0x00007ffff485d0f2 in g_main_loop_run () from /opt/Ardour-6.2.0/lib/libglib-2.0.so.0 #3 0x00007ffff3e4d3e7 in gtk_main () from /opt/Ardour-6.2.0/lib/libgtk-x11-2.0.so.0 #4 0x00007ffff5ca7806 in Gtkmm2ext::UI::run(Receiver&) () from /opt/Ardour-6.2.0/lib/libgtkmm2ext.so.0 #5 0x00005555559068b8 in ?? () #6 0x00007fffee4830b3 in __libc_start_main (main=0x5555559064d0, argc=1, argv=0x7fffffffd4f8, init=, fini=, rtld_fini=, stack_end=0x7fffffffd4e8) at ../csu/libc-start.c:308 #7 0x000055555590cbba in ?? () (gdb)