Thread 1 "ardour-5.12.0" received signal SIGTRAP, Trace/breakpoint trap. 0x00007ffff4dc7ea1 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (gdb) thread apply all bt Thread 36 (Thread 0x7fff7cdda700 (LWP 3674)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff79a2edc in ArdourWaveView::WaveViewDrawRequestQueue::dequeue(bool) () at /usr/lib/ardour5/libwaveview.so.0 #3 0x00007ffff79a32e0 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /usr/lib/ardour5/libwaveview.so.0 #4 0x00007ffff79a3343 in ArdourWaveView::WaveViewDrawingThread::run() () at /usr/lib/ardour5/libwaveview.so.0 #5 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #6 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 0x00007ffff1d3b6db in start_thread (arg=0x7fff7cdda700) at pthread_create.c:463 #8 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 35 (Thread 0x7fff7d5db700 (LWP 3673)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 ---Type to continue, or q to quit--- #2 0x00007ffff79a2edc in ArdourWaveView::WaveViewDrawRequestQueue::dequeue(bool) () at /usr/lib/ardour5/libwaveview.so.0 #3 0x00007ffff79a32e0 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /usr/lib/ardour5/libwaveview.so.0 #4 0x00007ffff79a3343 in ArdourWaveView::WaveViewDrawingThread::run() () at /usr/lib/ardour5/libwaveview.so.0 #5 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #6 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 0x00007ffff1d3b6db in start_thread (arg=0x7fff7d5db700) at pthread_create.c:463 #8 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 34 (Thread 0x7fffb67fc700 (LWP 3672)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff79a2edc in ArdourWaveView::WaveViewDrawRequestQueue::dequeue(bool) () at /usr/lib/ardour5/libwaveview.so.0 #3 0x00007ffff79a32e0 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /usr/lib/ardour5/libwaveview.so.0 #4 0x00007ffff79a3343 in ArdourWaveView::WaveViewDrawingThread::run() () at /usr/lib/ardour5/libwaveview.so.0 #5 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 ---Type to continue, or q to quit--- #6 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 0x00007ffff1d3b6db in start_thread (arg=0x7fffb67fc700) at pthread_create.c:463 #8 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 33 (Thread 0x7fffb77fe700 (LWP 3671)): #0 0x00007ffff1d45d50 in __GI___nanosleep (requested_time=0x7fffb77fdaf0, remaining=0x7fffb77fdb00) at ../sysdeps/unix/sysv/linux/nanosleep.c:28 #1 0x00007ffff4deb84f in g_usleep () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff6e92318 in ARDOUR::AutomationWatch::thread() () at /usr/lib/ardour5/libardour.so.3 #3 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffb77fe700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 32 (Thread 0x7fffb7fff700 (LWP 3670)): #0 0x00007ffff1d41ad3 in futex_wait_cancelable (private=, expected=0, futex_word=0x555557062140) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 ---Type to continue, or q to quit--- #1 0x00007ffff1d41ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5555570620f0, cond=0x555557062118) at pthread_cond_wait.c:502 #2 0x00007ffff1d41ad3 in __pthread_cond_wait (cond=0x555557062118, mutex=0x5555570620f0) at pthread_cond_wait.c:655 #3 0x00007ffff7256328 in ARDOUR::Session::auto_connect_thread_run() () at /usr/lib/ardour5/libardour.so.3 #4 0x00007ffff7256439 in ARDOUR::Session::auto_connect_thread(void*) () at /usr/lib/ardour5/libardour.so.3 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffb7fff700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 31 (Thread 0x7fffc4e01700 (LWP 3669)): #0 0x00007ffff1d41ad3 in futex_wait_cancelable (private=, expected=0, futex_word=0x5555570620d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 0x00007ffff1d41ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555557062080, cond=0x5555570620a8) at pthread_cond_wait.c:502 #2 0x00007ffff1d41ad3 in __pthread_cond_wait (cond=0x5555570620a8, mutex=0x555557062080) at pthread_cond_wait.c:655 #3 0x00007ffff72c50e3 in ARDOUR::Session::emit_thread_run() () at /usr/lib/ardour5/libardour.so.3 #4 0x00007ffff72c5109 in ARDOUR::Session::emit_thread(void*) () at /usr/lib/ardour5/libardour.so.3 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffc4e01700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 ---Type to continue, or q to quit--- Thread 30 (Thread 0x7fff7ffff700 (LWP 3668)): #0 0x00007ffff0603cb9 in __GI___poll (fds=0x7fff740ca7d0, nfds=5, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff4dc25c9 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff4dc2962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff59d30c8 in BaseUI::main_thread() () at /usr/lib/ardour5/libpbd.so.4 #4 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #5 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x00007ffff1d3b6db in start_thread (arg=0x7fff7ffff700) at pthread_create.c:463 #7 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 29 (Thread 0x7fff94703800 (LWP 3667)): #0 0x00007ffff0603cb9 in __GI___poll (fds=0x7fff947025d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff59ddb8d in CrossThreadChannel::poll_for_request() () at /usr/lib/ardour5/libpbd.so.4 #2 0x00007ffff59ddc0a in CrossThreadChannel::receive(char&, bool) () at /usr/lib/ardour5/libpbd.so.4 ---Type to continue, or q to quit--- #3 0x00007ffff6ea2c8b in ARDOUR::Butler::thread_work() () at /usr/lib/ardour5/libardour.so.3 #4 0x00007ffff6ea340f in ARDOUR::Butler::_thread_work(void*) () at /usr/lib/ardour5/libardour.so.3 #5 0x00007ffff5a06666 in () at /usr/lib/ardour5/libpbd.so.4 #6 0x00007ffff1d3b6db in start_thread (arg=0x7fff94703800) at pthread_create.c:463 #7 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 28 (Thread 0x7fffb484e700 (LWP 3666)): #0 0x00007ffff1d447c6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x5555582826f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205 #1 0x00007ffff1d447c6 in do_futex_wait (sem=sem@entry=0x5555582826f8, abstime=0x0) at sem_waitcommon.c:111 #2 0x00007ffff1d448b8 in __new_sem_wait_slow (sem=0x5555582826f8, abstime=0x0) at sem_waitcommon.c:181 #3 0x00007ffff6f60989 in ARDOUR::Graph::restart_cycle() () at /usr/lib/ardour5/libardour.so.3 #4 0x00007ffff6f60aec in ARDOUR::Graph::run_one() () at /usr/lib/ardour5/libardour.so.3 #5 0x00007ffff6f60b68 in ARDOUR::Graph::helper_thread() () at /usr/lib/ardour5/libardour.so.3 #6 0x00007fffccd7c38e in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /usr/lib/ardour5/backends/libjack_audiobackend.so #7 0x00007ffff1d3b6db in start_thread (arg=0x7fffb484e700) at pthread_create.c:463 ---Type to continue, or q to quit--- #8 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 27 (Thread 0x7fffb48cf700 (LWP 3665)): #0 0x00007ffff1d447c6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x5555582826d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205 #1 0x00007ffff1d447c6 in do_futex_wait (sem=sem@entry=0x5555582826d8, abstime=0x0) at sem_waitcommon.c:111 #2 0x00007ffff1d448b8 in __new_sem_wait_slow (sem=0x5555582826d8, abstime=0x0) at sem_waitcommon.c:181 #3 0x00007ffff6f60a97 in ARDOUR::Graph::run_one() () at /usr/lib/ardour5/libardour.so.3 #4 0x00007ffff6f60b68 in ARDOUR::Graph::helper_thread() () at /usr/lib/ardour5/libardour.so.3 #5 0x00007fffccd7c38e in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /usr/lib/ardour5/backends/libjack_audiobackend.so #6 0x00007ffff1d3b6db in start_thread (arg=0x7fffb48cf700) at pthread_create.c:463 #7 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 26 (Thread 0x7fffb4950700 (LWP 3664)): #0 0x00007ffff1d447c6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x5555582826d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205 #1 0x00007ffff1d447c6 in do_futex_wait (sem=sem@entry=0x5555582826d8, abstime=0x0) at sem_waitcommon.c:111 ---Type to continue, or q to quit--- #2 0x00007ffff1d448b8 in __new_sem_wait_slow (sem=0x5555582826d8, abstime=0x0) at sem_waitcommon.c:181 #3 0x00007ffff6f60a97 in ARDOUR::Graph::run_one() () at /usr/lib/ardour5/libardour.so.3 #4 0x00007ffff6f60c40 in ARDOUR::Graph::main_thread() () at /usr/lib/ardour5/libardour.so.3 #5 0x00007fffccd7c38e in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /usr/lib/ardour5/backends/libjack_audiobackend.so #6 0x00007ffff1d3b6db in start_thread (arg=0x7fffb4950700) at pthread_create.c:463 #7 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 23 (Thread 0x7fffb6ffd700 (LWP 3661)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0887a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff4d95571 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff4d95b2c in g_async_queue_timeout_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007ffff4deac1e in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x00007ffff1d3b6db in start_thread (arg=0x7fffb6ffd700) at pthread_create.c:463 ---Type to continue, or q to quit--- #7 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 21 (Thread 0x7fffb5cb9700 (LWP 3659)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007fffe7a4e437 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #2 0x00007fffe7a35e25 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #3 0x00007fffe7a34799 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #4 0x00007fffccd7b812 in ARDOUR::JACKAudioBackend::process_thread() () at /usr/lib/ardour5/backends/libjack_audiobackend.so #5 0x00007fffe7a346fa in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #6 0x00007fffe7a4c626 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #7 0x00007ffff1d3b6db in start_thread (arg=0x7fffb5cb9700) at pthread_create.c:463 #8 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 20 (Thread 0x7fffc78da700 (LWP 3658)): #0 0x00007ffff1d45474 in __libc_read (fd=20, buf=0x7fffc78d99c0, nbytes=4) at ../sysdeps/unix/sysv/linux/read.c:27 ---Type to continue, or q to quit--- #1 0x00007fffe7a4d88e in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #2 0x00007fffe7a50e91 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #3 0x00007fffe7a4c626 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #4 0x00007ffff1d3b6db in start_thread (arg=0x7fffc78da700) at pthread_create.c:463 #5 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 19 (Thread 0x7fffcc09c700 (LWP 3657)): #0 0x00007ffff1d41ad3 in futex_wait_cancelable (private=, expected=0, futex_word=0x5555579f9bb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 0x00007ffff1d41ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5555579f9b60, cond=0x5555579f9b90) at pthread_cond_wait.c:502 #2 0x00007ffff1d41ad3 in __pthread_cond_wait (cond=0x5555579f9b90, mutex=0x5555579f9b60) at pthread_cond_wait.c:655 #3 0x00007fffe7a4cfec in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #4 0x00007fffe7a44c65 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #5 0x00007fffe7a4c626 in () at /usr/lib/x86_64-linux-gnu/libjack.so.0 #6 0x00007ffff1d3b6db in start_thread (arg=0x7fffcc09c700) at pthread_create.c:463 #7 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 ---Type to continue, or q to quit--- Thread 13 (Thread 0x7fffc6be7700 (LWP 3651)): #0 0x00007ffff0603cb9 in __GI___poll (fds=0x555556bda600, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff4dc25c9 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff4dc2962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fffed1cc276 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffc6be7700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7fffc73e8700 (LWP 3650)): #0 0x00007ffff0603cb9 in __GI___poll (fds=0x555556bcf830, nfds=2, timeout=5101) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007ffff4dc25c9 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff4dc26dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff4dc2721 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 ---Type to continue, or q to quit--- #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffc73e8700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7fffc5602700 (LWP 3645)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff6e4b47b in ARDOUR::AudioEngine::do_devicelist_update() () at /usr/lib/ardour5/libardour.so.3 #3 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffc5602700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7fffcde03700 (LWP 3644)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 ---Type to continue, or q to quit--- #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff6e4d197 in ARDOUR::AudioEngine::do_reset_backend() () at /usr/lib/ardour5/libardour.so.3 #3 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffcde03700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7fffdcca9700 (LWP 3643)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff6dfd5cf in ARDOUR::Analyser::work() () at /usr/lib/ardour5/libardour.so.3 #3 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffdcca9700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 ---Type to continue, or q to quit--- Thread 4 (Thread 0x7fffdd4aa700 (LWP 3642)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff733493f in () at /usr/lib/ardour5/libardour.so.3 #3 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffdd4aa700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7fffddcab700 (LWP 3641)): #0 0x00007ffff060a639 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007ffff4e0875f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff733493f in () at /usr/lib/ardour5/libardour.so.3 #3 0x00007ffff532e69d in () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 ---Type to continue, or q to quit--- #4 0x00007ffff4dea175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff1d3b6db in start_thread (arg=0x7fffddcab700) at pthread_create.c:463 #6 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7fffde4ac700 (LWP 3640)): #0 0x00007ffff1d45d50 in __GI___nanosleep (requested_time=0x7fffde4ab990, remaining=0x7fffde4ab9a0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28 #1 0x00007ffff4deb84f in g_usleep () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x0000555556177dfb in () #3 0x00007ffff1d3b6db in start_thread (arg=0x7fffde4ac700) at pthread_create.c:463 #4 0x00007ffff061071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7ffff7f90ac0 (LWP 3636)): #0 0x00007ffff4dc7ea1 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007ffff4dc8f3c in g_log_default_handler () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff4dc91c2 in g_logv () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 ---Type to continue, or q to quit--- #3 0x00007ffff4dc931f in g_log () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007ffff5336e2f in Glib::exception_handlers_invoke() () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #5 0x00007ffff3343439 in Gtk::Widget_Class::expose_event_callback(_GtkWidget*, _GdkEventExpose*) () at /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1 #6 0x00007ffff466038b in () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #7 0x00007ffff509d10d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #8 0x00007ffff50afde8 in () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #9 0x00007ffff50b80af in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #10 0x00007ffff50b912f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #11 0x00007ffff47762bc in () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #12 0x00007ffff465ec68 in gtk_main_do_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #13 0x00007ffff42bab9f in () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #14 0x00007ffff42bab45 in () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #15 0x00007ffff42bab45 in () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #16 0x00007ffff42bab45 in () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #17 0x00007ffff42b7623 in () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 ---Type to continue, or q to quit--- #18 0x00007ffff42b7fb0 in gdk_window_process_all_updates () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #19 0x00007ffff45e5061 in () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #20 0x00007ffff4296c1c in () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #21 0x00007ffff4dc2285 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #22 0x00007ffff4dc2650 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #23 0x00007ffff4dc26dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #24 0x00007ffff465dc41 in gtk_main_iteration () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #25 0x00007ffff5c9e913 in Gtkmm2ext::UI::flush_pending(float) () at /usr/lib/ardour5/libgtkmm2ext.so.0 #26 0x00005555559662b5 in () #27 0x0000555555977485 in () #28 0x0000555555978621 in () #29 0x00007ffff5c9d0a6 in Gtkmm2ext::UI::run(Receiver&) () at /usr/lib/ardour5/libgtkmm2ext.so.0 #30 0x000055555592d61d in main ()