[New Thread 0x7fff657fc6c0 (LWP 8775)]
[New Thread 0x7fff65ffd6c0 (LWP 8776)]
[New Thread 0x7fff667fe6c0 (LWP 8777)]
[New Thread 0x7fff66fff6c0 (LWP 8778)]
[New Thread 0x7fff60bff6c0 (LWP 8779)]
[New Thread 0x7fff56bff6c0 (LWP 8780)]
[New Thread 0x7fff563fe6c0 (LWP 8781)]
[New Thread 0x7fff55bfd6c0 (LWP 8782)]
[New Thread 0x7fff61bff6c0 (LWP 8783)]
[New Thread 0x7fff3ffff6c0 (LWP 8784)]
[Thread 0x7fff61bff6c0 (LWP 8783) exited]
[New Thread 0x7fff61bff6c0 (LWP 8785)]
[New Thread 0x7fff3f7fe6c0 (LWP 8786)]
[Thread 0x7fff3ffff6c0 (LWP 8784) exited]
[Thread 0x7fff61bff6c0 (LWP 8785) exited]
[Thread 0x7fff3f7fe6c0 (LWP 8786) exited]
WARNING: OnsetDetector::initialise: Possibly sub-optimal step size for this sample rate: 512 (wanted 557)
WARNING: OnsetDetector::initialise: Possibly sub-optimal block size for this sample rate: 1024 (wanted 1114)
WARNING: OnsetDetector::initialise: Possibly sub-optimal step size for this sample rate: 512 (wanted 557)
WARNING: OnsetDetector::initialise: Possibly sub-optimal block size for this sample rate: 1024 (wanted 1114)
WARNING: OnsetDetector::initialise: Possibly sub-optimal step size for this sample rate: 512 (wanted 557)
WARNING: OnsetDetector::initialise: Possibly sub-optimal block size for this sample rate: 1024 (wanted 1114)
[New Thread 0x7fff3f7fe6c0 (LWP 8795)]
[Thread 0x7fff3f7fe6c0 (LWP 8795) exited]

Thread 1 "ArdourGUI" received signal SIGSEGV, Segmentation fault.
0x000055555651e84d in StreamView::set_selected_regionviews(RegionSelection&) ()
(gdb) thread apply all bt

Thread 129 (Thread 0x7fff55bfd6c0 (LWP 8782) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 128 (Thread 0x7fff563fe6c0 (LWP 8781) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 127 (Thread 0x7fff56bff6c0 (LWP 8780) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 126 (Thread 0x7fff60bff6c0 (LWP 8779) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
--Type <RET> for more, q to quit, c to continue without paging--c
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 125 (Thread 0x7fff66fff6c0 (LWP 8778) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 124 (Thread 0x7fff667fe6c0 (LWP 8777) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 123 (Thread 0x7fff65ffd6c0 (LWP 8776) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 122 (Thread 0x7fff657fc6c0 (LWP 8775) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557058318, mutex=0x555557058310) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff7f8a545 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#3  0x00007ffff7f8a759 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#4  0x00007ffff7f8a7d7 in ArdourWaveView::WaveViewThreads::_thread_proc() () at /opt/ardour/8.1-23/lib/ardour8/libwaveview.so.0
#5  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 105 (Thread 0x7fff79f066c0 (LWP 8671) "AutomationWatch"):
#0  0x00007ffff4edcea1 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=req@entry=0x7fff79f05940, rem=rem@entry=0x7fff79f05930) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff4ee1c97 in __GI___nanosleep (req=req@entry=0x7fff79f05940, rem=rem@entry=0x7fff79f05930) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffff67bd14f in g_usleep (microseconds=<optimized out>) at ../../../glib/gtimer.c:279
#3  0x00007ffff7372205 in ARDOUR::AutomationWatch::thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 104 (Thread 0x7fff7a7076c0 (LWP 8670) "autoconnect"):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555af344a0) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555af344a0) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555af344a0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff4e8e5f8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555af34450, cond=0x55555af34478) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55555af34478, mutex=0x55555af34450) at ./nptl/pthread_cond_wait.c:627
#5  0x00007ffff778e912 in ARDOUR::Session::auto_connect_thread_run() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#6  0x00007ffff778e9bc in ARDOUR::Session::auto_connect_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#7  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#8  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 103 (Thread 0x7fff9bf7e6c0 (LWP 8669) "SessionSignals"):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555af34434) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x55555af34434) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555af34434, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff4e8e5f8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555af343e0, cond=0x55555af34408) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55555af34408, mutex=0x55555af343e0) at ./nptl/pthread_cond_wait.c:627
#5  0x00007ffff7806133 in ARDOUR::Session::emit_thread_run() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#6  0x00007ffff780616c in ARDOUR::Session::emit_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#7  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#8  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 102 (Thread 0x7fff911d86c0 (LWP 8668) "ArdourGUI"):
#0  0x00007ffff4f1027f in __GI___poll (fds=fds@entry=0x7fff80000b70, nfds=nfds@entry=2, timeout=timeout@entry=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5ab306e in poll (__timeout=60000, __nfds=2, __fds=0x7fff80000b70) at /usr/include/x86_64-linux-gnu/bits/poll2.h:39
#2  usbi_wait_for_events (timeout_ms=60000, reported_events=0x7fff911d78e0, ctx=0x55555faaa420) at ../../libusb/os/events_posix.c:226
#3  handle_events (ctx=ctx@entry=0x55555faaa420, tv=tv@entry=0x7fff911d7940) at ../../libusb/io.c:2244
#4  0x00007ffff5ab4cd8 in libusb_handle_events_timeout_completed (ctx=0x55555faaa420, tv=tv@entry=0x7fff911d79a0, completed=completed@entry=0x0) at ../../libusb/io.c:2361
#5  0x00007ffff5ab4d43 in libusb_handle_events (ctx=<optimized out>) at ../../libusb/io.c:2436
#6  0x00007ffff73903fd in usb_hotplug_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#7  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#8  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 101 (Thread 0x7fff909d76c0 (LWP 8667) "libusb_event"):
#0  0x00007ffff4f1027f in __GI___poll (fds=fds@entry=0x7fff909d69a0, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff5aaf4c2 in poll (__timeout=-1, __nfds=2, __fds=0x7fff909d69a0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:39
#2  linux_udev_event_thread_main (arg=<optimized out>) at ../../libusb/os/linux_udev.c:183
#3  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#4  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 100 (Thread 0x7fff7bfff6c0 (LWP 8666) "Generic MIDI"):
#0  0x00007ffff4f1027f in __GI___poll (fds=0x7fff740342e0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff67ee0ee in g_main_context_poll (priority=<optimized out>, n_fds=3, fds=0x7fff740342e0, timeout=<optimized out>, context=0x55555faa7120) at ../../../glib/gmain.c:4584
#2  g_main_context_iterate.constprop.0 (context=0x55555faa7120, block=<optimized out>, dispatch=1, self=<optimized out>) at ../../../glib/gmain.c:4271
#3  0x00007ffff6792bdf in g_main_loop_run (loop=0x55555faa6980) at ../../../glib/gmain.c:4479
#4  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 99 (Thread 0x7fff7b7fe6c0 (LWP 8665) "midiUI"):
#0  0x00007ffff4f1027f in __GI___poll (fds=0x7fff70033870, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff67ee0ee in g_main_context_poll (priority=<optimized out>, n_fds=4, fds=0x7fff70033870, timeout=<optimized out>, context=0x55555e1d2900) at ../../../glib/gmain.c:4584
#2  g_main_context_iterate.constprop.0 (context=0x55555e1d2900, block=<optimized out>, dispatch=1, self=<optimized out>) at ../../../glib/gmain.c:4271
#3  0x00007ffff6792bdf in g_main_loop_run (loop=0x55555e1d2aa0) at ../../../glib/gmain.c:4479
#4  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 98 (Thread 0x7fff9bfff6c0 (LWP 8664) "butler"):
#0  0x00007ffff4f1027f in __GI___poll (fds=0x7fff9bffe5e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6a1f24c in CrossThreadChannel::poll_for_request() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff6a1f2d2 in CrossThreadChannel::receive(char&, bool) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#3  0x00007ffff737ee59 in ARDOUR::Butler::thread_work() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007ffff6a476c4 in fake_thread_start(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 91 (Thread 0x7fff99f4a6c0 (LWP 8657) "RT-7-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff748089d in ARDOUR::Graph::run_one() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7480c50 in ARDOUR::Graph::helper_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 90 (Thread 0x7fff9a74b6c0 (LWP 8656) "RT-6-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff748089d in ARDOUR::Graph::run_one() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7480c50 in ARDOUR::Graph::helper_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 89 (Thread 0x7fff9af4c6c0 (LWP 8655) "RT-5-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff748089d in ARDOUR::Graph::run_one() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7480c50 in ARDOUR::Graph::helper_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 88 (Thread 0x7fff93fff6c0 (LWP 8654) "RT-4-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff748089d in ARDOUR::Graph::run_one() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7480c50 in ARDOUR::Graph::helper_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 87 (Thread 0x7fff9b74d6c0 (LWP 8653) "RT-3-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff748089d in ARDOUR::Graph::run_one() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7480c50 in ARDOUR::Graph::helper_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 86 (Thread 0x7fffb4bfc6c0 (LWP 8652) "RT-2-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff748089d in ARDOUR::Graph::run_one() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7480c50 in ARDOUR::Graph::helper_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 85 (Thread 0x7fffb63ff6c0 (LWP 8651) "RT-1-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff748089d in ARDOUR::Graph::run_one() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7480c50 in ARDOUR::Graph::helper_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 84 (Thread 0x7fffb5bfe6c0 (LWP 8650) "RT-main-(nil)"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff6a4c1da in PBD::Semaphore::wait() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff747f926 in ARDOUR::Graph::reached_terminal_node() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff7481070 in ARDOUR::Graph::main_thread() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007fffe8544bb6 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 52 (Thread 0x7fffb7fff6c0 (LWP 8603) "AudioEngine 1"):
#0  0x00007ffff4f1e4f6 in epoll_wait (epfd=21, events=events@entry=0x7fffb7ffe170, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fffe83f94a8 in impl_pollfd_wait (object=<optimized out>, pfd=<optimized out>, ev=0x7fffb7ffe3d0, n_ev=<optimized out>, timeout=<optimized out>) at ../spa/plugins/support/system.c:137
#2  0x00007fffe83e9de1 in loop_iterate_cancel (object=0x55555925d748, timeout=-1) at ../spa/plugins/support/loop.c:424
#3  0x00007fffe84428c9 in pw_data_loop_wait () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#4  0x00007fffe84fe2ef in jack_cycle_wait () at /usr/lib/x86_64-linux-gnu/pipewire-0.3/jack/libjack.so.0
#5  0x00007fffe8542faf in ARDOUR::JACKAudioBackend::process_thread() () at /opt/ardour/8.1-23/lib/ardour8/backends/libjack_audiobackend.so
#6  0x00007fffe83e9f4e in loop_iterate_cancel (object=0x55555925d748, timeout=-1) at ../spa/plugins/support/loop.c:454
#7  0x00007fffe84484ec in  () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#8  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#9  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 51 (Thread 0x7fffd14c06c0 (LWP 8602) "pw-ardour"):
#0  0x00007ffff4f1e4f6 in epoll_wait (epfd=17, events=events@entry=0x7fffd14bf5c0, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fffe83f94a8 in impl_pollfd_wait (object=<optimized out>, pfd=<optimized out>, ev=0x7fffd14bf780, n_ev=<optimized out>, timeout=<optimized out>) at ../spa/plugins/support/system.c:137
#2  0x00007fffe83ea0cd in loop_iterate (object=0x5555592555d8, timeout=-1) at ../spa/plugins/support/loop.c:471
#3  0x00007fffe8489b79 in  () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#4  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#5  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 17 (Thread 0x7fffd24c26c0 (LWP 8474) "gdbus"):
#0  0x00007ffff4f1027f in __GI___poll (fds=0x7fffc4000b90, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff67ee0ee in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fffc4000b90, timeout=<optimized out>, context=0x555557441460) at ../../../glib/gmain.c:4584
#2  g_main_context_iterate.constprop.0 (context=0x555557441460, block=<optimized out>, dispatch=1, self=<optimized out>) at ../../../glib/gmain.c:4271
#3  0x00007ffff6792bdf in g_main_loop_run (loop=0x555557441550) at ../../../glib/gmain.c:4479
#4  0x00007ffff45e601a in gdbus_shared_thread_func (user_data=0x555557441430) at ../../../gio/gdbusprivate.c:284
#5  0x00007ffff67bf361 in g_thread_proxy (data=0x55555740cc30) at ../../../glib/gthread.c:831
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 16 (Thread 0x7fffd36e16c0 (LWP 8473) "gmain"):
#0  0x00007ffff4f1027f in __GI___poll (fds=0x555557438300, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff67ee0ee in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x555557438300, timeout=<optimized out>, context=0x5555574380d0) at ../../../glib/gmain.c:4584
#2  g_main_context_iterate.constprop.0 (context=0x5555574380d0, block=<optimized out>, dispatch=1, self=<optimized out>) at ../../../glib/gmain.c:4271
#3  0x00007ffff67921b0 in g_main_context_iteration (context=0x5555574380d0, may_block=may_block@entry=1) at ../../../glib/gmain.c:4343
#4  0x00007ffff6792201 in glib_worker_main (data=<optimized out>) at ../../../glib/gmain.c:6455
#5  0x00007ffff67bf361 in g_thread_proxy (data=0x55555740b4f0) at ../../../glib/gthread.c:831
#6  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#7  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 15 (Thread 0x7fffd2ee06c0 (LWP 8472) "pool-spawner"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x555557437f68, mutex=0x555557437f60) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff675ea7b in g_async_queue_pop_intern_unlocked (queue=0x555557437f60, wait=1, end_time=-1) at ../../../glib/gasyncqueue.c:425
#3  0x00007ffff67c3b4a in g_thread_pool_spawn_thread (data=<optimized out>) at ../../../glib/gthreadpool.c:311
#4  0x00007ffff67bf361 in g_thread_proxy (data=0x555557408040) at ../../../glib/gthread.c:831
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 10 (Thread 0x7fffe8f0d6c0 (LWP 8431) "DeviceList"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x5555572ba490, mutex=0x5555572ba4a0) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff73153ff in ARDOUR::AudioEngine::do_devicelist_update() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#4  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#5  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 9 (Thread 0x7fffe9ec76c0 (LWP 8430) "EngineWatchdog"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x5555572ba460, mutex=0x5555572ba470) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff73172a9 in ARDOUR::AudioEngine::do_reset_backend() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#4  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#5  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 6 (Thread 0x7fffea7fc6c0 (LWP 8427) "Analyzer"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x7ffff7ebe1e0 <ARDOUR::Analyser::SourcesToAnalyse>, mutex=0x7ffff7ebe1f0 <ARDOUR::Analyser::analysis_queue_lock>) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff72c8897 in ARDOUR::Analyser::work() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#4  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#5  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 5 (Thread 0x7fffeaffd6c0 (LWP 8426) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x7ffff7ec0c70 <ARDOUR::SourceFactory::PeaksToBuild>, mutex=0x7ffff7ec0c68 <ARDOUR::SourceFactory::peak_building_lock>) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff78a74dd in peak_thread_work() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#4  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#5  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 4 (Thread 0x7fffeb7fe6c0 (LWP 8425) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff67e7983 in g_cond_wait (cond=0x7ffff7ec0c70 <ARDOUR::SourceFactory::PeaksToBuild>, mutex=0x7ffff7ec0c68 <ARDOUR::SourceFactory::peak_building_lock>) at ../../../glib/gthread-posix.c:1475
#2  0x00007ffff78a74dd in peak_thread_work() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#3  0x00007ffff6a4869a in PBD::Thread::_run(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#4  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#5  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 3 (Thread 0x7fffebfff6c0 (LWP 8424) "LXVSTEventLoop"):
#0  0x00007ffff4edcea1 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=req@entry=0x7fffebffe7f0, rem=rem@entry=0x7fffebffe7e0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff4ee1c97 in __GI___nanosleep (req=req@entry=0x7fffebffe7f0, rem=rem@entry=0x7fffebffe7e0) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffff67bd14f in g_usleep (microseconds=<optimized out>) at ../../../glib/gtimer.c:279
#3  0x00005555566ad5a4 in gui_event_loop(void*) ()
#4  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#5  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7ffff0c9e6c0 (LWP 8423) "Trigger Worker"):
#0  0x00007ffff4f1027f in __GI___poll (fds=0x7ffff0c9d8d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6a1f24c in CrossThreadChannel::poll_for_request() () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#2  0x00007ffff6a1f2d2 in CrossThreadChannel::receive(char&, bool) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#3  0x00007ffff7909133 in ARDOUR::TriggerBoxThread::thread_work() () at /opt/ardour/8.1-23/lib/ardour8/libardour.so.3
#4  0x00007ffff6a476c4 in fake_thread_start(void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#5  0x00007ffff4e8f6ba in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
#6  0x00007ffff4f1e0d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7ffff2c78c40 (LWP 8415) "ArdourGUI"):
#0  0x000055555651e84d in StreamView::set_selected_regionviews(RegionSelection&) ()
#1  0x00005555563f809f in non-virtual thunk to RouteTimeAxisView::set_selected_regionviews(RegionSelection&) ()
#2  0x0000555555e09078 in Editor::region_selection_changed() ()
#3  0x0000555555bda83a in sigc::internal::signal_emit0<void, sigc::nil>::emit(sigc::internal::signal_impl*) ()
#4  0x00007ffff6afab86 in AbstractUI<Gtkmm2ext::UIRequest>::call_slot(PBD::EventLoop::InvalidationRecord*, boost::function<void ()> const&) () at /opt/ardour/8.1-23/lib/ardour8/libgtkmm2ext.so.0
#5  0x0000555555ccf832 in PBD::Signal1<void, RegionView*, PBD::OptionalLastValue<void> >::compositor(boost::function<void (RegionView*)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, RegionView*) ()
#6  0x0000555555ccc7b7 in boost::detail::function::void_function_obj_invoker1<boost::_bi::bind_t<void, void (*)(boost::function<void (RegionView*)>, PBD::EventLoop*, PBD::EventLoop::InvalidationRecord*, RegionView*), boost::_bi::list4<boost::_bi::value<boost::function<void (RegionView*)> >, boost::_bi::value<PBD::EventLoop*>, boost::_bi::value<PBD::EventLoop::InvalidationRecord*>, boost::arg<1> > >, void, RegionView*>::invoke(boost::detail::function::function_buffer&, RegionView*) ()
#7  0x0000555555bfe16f in PBD::Signal1<void, RegionView*, PBD::OptionalLastValue<void> >::operator()(RegionView*) ()
#8  0x0000555555bf3098 in AudioRegionView::~AudioRegionView() ()
#9  0x0000555555bf331d in AudioRegionView::~AudioRegionView() ()
#10 0x000055555652198e in StreamView::playlist_switched(std::weak_ptr<ARDOUR::Track>) ()
#11 0x0000555556524944 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf1<void, StreamView, std::weak_ptr<ARDOUR::Track> >, boost::_bi::list2<boost::_bi::value<StreamView*>, boost::_bi::value<std::weak_ptr<ARDOUR::Track> > > >, void>::invoke(boost::detail::function::function_buffer&) ()
#12 0x00007ffff6afb545 in AbstractUI<Gtkmm2ext::UIRequest>::handle_ui_requests() () at /opt/ardour/8.1-23/lib/ardour8/libgtkmm2ext.so.0
#13 0x00007ffff6a10ace in BaseUI::request_handler(Glib::IOCondition) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#14 0x00007ffff6a1eb1b in cross_thread_channel_call_receive_slot(_GIOChannel*, GIOCondition, void*) () at /opt/ardour/8.1-23/lib/ardour8/libpbd.so.4
#15 0x00007ffff679336f in g_main_dispatch (context=0x5555573331e0) at ../../../glib/gmain.c:3460
#16 g_main_context_dispatch (context=0x5555573331e0) at ../../../glib/gmain.c:4200
#17 0x00007ffff67ee178 in g_main_context_iterate.constprop.0 (context=0x5555573331e0, block=<optimized out>, dispatch=1, self=<optimized out>) at ../../../glib/gmain.c:4276
#18 0x00007ffff6792bdf in g_main_loop_run (loop=0x555558dd6440) at ../../../glib/gmain.c:4479
#19 0x00007ffff63402d2 in IA__gtk_main () at ../../../../gtk/gtkmain.c:1284
#20 0x00007ffff6af35da in Gtkmm2ext::UI::run(Receiver&) () at /opt/ardour/8.1-23/lib/ardour8/libgtkmm2ext.so.0
#21 0x0000555555b08703 in main ()