Recording Crash

(gdb) thread apply all bt

Thread 62 (Thread 0x7fff2ffff700 (LWP 6911) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7844c65 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7844be9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff78450f9 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff78450a0 in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00007ffff7848925 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
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555563eaf4c8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555563eaf4a0) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 61 (Thread 0x7fff3ca0c700 (LWP 6910) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7844c65 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:323
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#3  0x00007ffff7844be9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff78450f9 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff78450a0 in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00007ffff7848925 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
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555563e8daf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555563e8dad0) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 60 (Thread 0x7fff3d20d700 (LWP 6909) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7844c65 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7844be9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff78450f9 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff78450a0 in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
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#6  0x00007ffff7848925 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
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555563e6da08) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555563e6d9e0) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 59 (Thread 0x7fff83fff700 (LWP 6908) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7844c65 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7844be9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff78450f9 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff78450a0 in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00007ffff7848925 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
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555563e07a28) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555563e07a00) at ../libs/pbd/pthread_utils.cc:48--Type <RET> for more, q to quit, c to continue without paging--

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8
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 58 (Thread 0x7fffaabfe700 (LWP 6907) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7844c65 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7844be9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff78450f9 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff78450a0 in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00007ffff7848925 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
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555563e4ab08) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555563e4aae0) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 57 (Thread 0x7fffa93fb700 (LWP 6906) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
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#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7844c65 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7844be9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff78450f9 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:501
#5  0x00007ffff78450a0 in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00007ffff7848925 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
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555565ab58b8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555565ab5890) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 56 (Thread 0x7fffaa3fd700 (LWP 6905) "WaveViewDrawing"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7844c65 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request (this=0x55556524b380) at ../libs/waveview/wave_view_private.cc:323
#3  0x00007ffff7844be9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:312
#4  0x00007ffff78450f9 in ArdourWaveView::WaveViewThreads::_thread_proc (this=0x55556524b380) at ..--Type <RET> for more, q to quit, c to continue without paging--

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/libs/waveview/wave_view_private.cc:501
#5  0x00007ffff78450a0 in ArdourWaveView::WaveViewThreads::thread_proc () at ../libs/waveview/wave_view_private.cc:415
#6  0x00007ffff7848925 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
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555563de5698) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555563de5670) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 55 (Thread 0x7fff3f7fe700 (LWP 6902) "AutomationWatch"):
#0  0x00007ffff38ee1a1 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fff3f7fdb80, rem=0x7fff3f7fdb90) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1  0x00007ffff38f3983 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff1488d48 in g_usleep () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff64fd5bb in ARDOUR::AutomationWatch::thread (this=0x55555df75300) at ../libs/ardour/automation_watch.cc:207
#4  0x00007ffff6502af3 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x555561ae5e30, p=0x55555df75300) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6502784 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x555561ae5e40, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
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#6  0x00007ffff6501ef1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x555561ae5e30) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff650187f 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x555561ae5e28) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x555561ae5e00) at ../libs/pbd/pthread_utils.cc:488
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 54 (Thread 0x7fff3ffff700 (LWP 6901) "autoconnect"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55555c7fdda4) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555c7fdd50, cond=0x55555c7fdd78) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555c7fdd78, mutex=0x55555c7fdd50) at pthread_cond_wait.c:638
#3  0x00007ffff69b6fc8 in ARDOUR::Session::auto_connect_thread_run (this=0x55555c7fbc90) at ../libs/ardour/session.cc:7580
#4  0x00007ffff69b6a14 in ARDOUR::Session::auto_connect_thread (arg=0x55555c7fbc90) at ../libs/ardour/session.cc:7511
#5  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

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Thread 53 (Thread 0x7fff4ca2d700 (LWP 6900) "SessionSignals"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55555c7fdd34) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55555c7fdce0, cond=0x55555c7fdd08) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55555c7fdd08, mutex=0x55555c7fdce0) at pthread_cond_wait.c:638
#3  0x00007ffff6a44941 in ARDOUR::Session::emit_thread_run (this=0x55555c7fbc90) at ../libs/ardour/session_process.cc:1232
#4  0x00007ffff6a448de in ARDOUR::Session::emit_thread (arg=0x55555c7fbc90) at ../libs/ardour/session_process.cc:1221
#5  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 52 (Thread 0x7fff4d22e700 (LWP 6899) "ArdourGUI"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7fff40000b60, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffe8008af7 in ?? () from /opt/Ardour-7.4.211-dbg/lib/libusb-1.0.so.0
#2  0x00007fffe8009c19 in libusb_handle_events_timeout_completed () from /opt/Ardour-7.4.211-dbg/lib/libusb-1.0.so.0
#3  0x00007fffe8009d9a in libusb_handle_events () from /opt/Ardour-7.4.211-dbg/lib/libusb-1.0.so.0
#4  0x00007ffff652980a in usb_hotplug_thread (user_data=0x55555748bc00) at ../libs/ardour/control_protocol_manager.cc:87
#5  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 51 (Thread 0x7fff4da2f700 (LWP 6898) "ArdourGUI"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7fff4da2ed10, nfds=2, timeout=-1) at ../sysdeps/unix/s--Type <RET> for more, q to quit, c to continue without paging--

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ysv/linux/poll.c:29
#1  0x00007fffe801162d in ?? () from /opt/Ardour-7.4.211-dbg/lib/libusb-1.0.so.0
#2  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#3  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 50 (Thread 0x7fff4e230700 (LWP 6897) "Generic MIDI"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7fff4805a450, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff1456c76 in ?? () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff1457002 in g_main_loop_run () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2cf3336 in BaseUI::main_thread (this=0x55555af7edf8) at ../libs/pbd/base_ui.cc:102
#4  0x00007ffff2cf7b01 in boost::_mfi::mf0<void, BaseUI>::operator() (this=0x55555bef7840, p=0x55555af7edf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff2cf77d2 in boost::_bi::list1<boost::_bi::value<BaseUI*> >::operator()<boost::_mfi::mf0<void, BaseUI>, boost::_bi::list0> (this=0x55555bef7850, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff2cf73c1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >::operator() (this=0x55555bef7840) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff2cf6e80 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x55555bef7838) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x55555bef7810) at ../libs/pbd/pthread_utils.cc:488
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#8  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x55555bef7838) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x55555bef7810) at ../libs/pbd/pthread_utils.cc:488
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#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 49 (Thread 0x7fff817fa700 (LWP 6896) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2d374b8 in PBD::Semaphore::wait (this=0x55555d948760) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6b7930e in ARDOUR::Worker::run (this=0x55555d948740) at ../libs/ardour/worker.cc:145
#3  0x00007ffff6b7a681 in boost::_mfi::mf0<void, ARDOUR::Worker>::operator() (this=0x55555d94a3f0, p=0x55555d948740) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6b7a4ae in boost::_bi::list1<boost::_bi::value<ARDOUR::Worker*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Worker>, boost::_bi::list0> (this=0x55555d94a400, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6b7a3a5 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Worker>, boost::_bi::list1<boost::_bi::value<ARDOUR::Worker*> > >::operator() (this=0x55555d94a3f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff6b7a2f3 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Worker>, boost::_bi::list1<boost::_bi::value<ARDOUR::Worker*> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#7  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x55555d94a3e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x55555d94a3c0) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
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#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 48 (Thread 0x7fffa8bfa700 (LWP 6895) "midiUI"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7fff50041a50, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff1456c76 in ?? () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff1457002 in g_main_loop_run () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2cf3336 in BaseUI::main_thread (this=0x55555dfa2a30) at ../libs/pbd/base_ui.cc:102
#4  0x00007ffff2cf7b01 in boost::_mfi::mf0<void, BaseUI>::operator() (this=0x55555a122120, p=0x55555dfa2a30) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff2cf77d2 in boost::_bi::list1<boost::_bi::value<BaseUI*> >::operator()<boost::_mfi::mf0<void, BaseUI>, boost::_bi::list0> (this=0x55555a122130, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff2cf73c1 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, BaseUI>, boost::_bi::list1<boost::_bi::value<BaseUI*> > >::operator() (this=0x55555a122120) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff2cf6e80 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x55555a122118) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x55555a1220f0) at ../libs/pbd/pthread_utils.cc:488
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

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Thread 47 (Thread 0x7fffef37b700 (LWP 6894) "butler"):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007ffff384e537 in __GI_abort () at abort.c:79
#2  0x00007ffff384e40f in __assert_fail_base (fmt=0x7ffff39c5688 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7ffff6f6ddb8 "!source->used ()", file=0x7ffff6f6ce2f "../libs/ardour/session.cc", line=4669, function=<optimized out>) at assert.c:92
#3  0x00007ffff385d662 in __GI___assert_fail (assertion=0x7ffff6f6ddb8 "!source->used ()", file=0x7ffff6f6ce2f "../libs/ardour/session.cc", line=4669, function=0x7ffff6f6fb80 <ARDOUR::Session::remove_source(std::weak_ptr<ARDOUR::Source>, bool)::__PRETTY_FUNCTION__> "void ARDOUR::Session::remove_source(std::weak_ptr<ARDOUR::Source>, bool)") at assert.c:101
#4  0x00007ffff69a7605 in ARDOUR::Session::remove_source (this=0x55555c7fbc90, src=std::weak_ptr<ARDOUR::Source> (use count 2, weak count 6) = {...}, drop_references=false) at ../libs/ardour/session.cc:4669
#5  0x00007ffff69ed668 in boost::_mfi::mf2<void, ARDOUR::Session, std::weak_ptr<ARDOUR::Source>, bool>::operator() (this=0x7fff5c08da10, p=0x55555c7fbc90, a1=std::weak_ptr<ARDOUR::Source> (use count 2, weak count 6) = {...}, a2=false) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:280
#6  0x00007ffff69ea03d in boost::_bi::list3<boost::_bi::value<ARDOUR::Session*>, boost::_bi::value<std::weak_ptr<ARDOUR::Source> >, boost::_bi::value<bool> >::operator()<boost::_mfi::mf2<void, ARDOUR::Session, std::weak_ptr<ARDOUR::Source>, bool>, boost::_bi::list0> (this=0x7fff5c08da20, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:398
#7  0x00007ffff69e463b in boost::_bi::bind_t<void, boost::_mfi::mf2<void, ARDOUR::Session, std::weak_ptr<ARDOUR::Source>, bool>, boost::_bi::list3<boost::_bi::value<ARDOUR::Session*>, boost::_bi::value<std::weak_ptr<ARDOUR::Source> >, boost::_bi::value<bool> > >::operator() (this=0x7fff5c08da10) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff69dd1c5 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf2<void, ARDOUR::Session, std::weak_ptr<ARDOUR::Source>, bool>, boost::_bi::list3--Type <RET> for more, q to quit, c to continue without paging--


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<boost::_bi::value<ARDOUR::Session*>, boost::_bi::value<std::weak_ptr<ARDOUR::Source> >, boost::_bi::value<bool> > >, void>::invoke (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x7fff5c08dbc0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x0000555555b725ae in PBD::Signal0<void, PBD::OptionalLastValue<void> >::operator() (this=0x55555b1d26b8) at libs/pbd/pbd/signals_generated.h:340
#11 0x0000555555b8e6e2 in PBD::Destructible::drop_references (this=0x55555b1d2668) at ../libs/pbd/pbd/destructible.h:34
#12 0x00007ffff6564607 in ARDOUR::DiskWriter::transport_stopped_wallclock (this=0x55555b0fd260, when=..., twhen=1686309788, abort_capture=true) at ../libs/ardour/disk_writer.cc:1225
#13 0x00007ffff6b095d5 in ARDOUR::Track::transport_stopped_wallclock (this=0x55555b0bdd90, n=..., t=1686309788, g=true) at ../libs/ardour/track.cc:586
#14 0x00007ffff6ab4da9 in ARDOUR::Session::non_realtime_stop (this=0x55555c7fbc90, abort=true, on_entry=1, finished=@0x7fffef37a0ef: true, will_locate=false) at ../libs/ardour/session_transport.cc:1394
#15 0x00007ffff6ab39d2 in ARDOUR::Session::butler_transport_work (this=0x55555c7fbc90, have_process_lock=false) at ../libs/ardour/session_transport.cc:1180
#16 0x00007ffff65132ae in ARDOUR::Butler::thread_work (this=0x55555e266220) at ../libs/ardour/butler.cc:223
#17 0x00007ffff6512b43 in ARDOUR::Butler::_thread_work (arg=0x55555e266220) at ../libs/ardour/butler.cc:170
#18 0x00007ffff2d30547 in fake_thread_start (arg=0x55555a252260) at ../libs/pbd/pthread_utils.cc:101
#19 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#20 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

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Thread 46 (Thread 0x7fffef3fe900 (LWP 6893) "RT-6-0x7fffef3f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2d374b8 in PBD::Semaphore::wait (this=0x55555863dc30) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff66548cc in ARDOUR::Graph::reached_terminal_node (this=0x55555863daf0) at ../libs/ardour/graph.cc:267
#3  0x00007ffff66612bf in ARDOUR::GraphNode::finish (this=0x55555c1a9000, chain=0x7fff44003990) at ../libs/ardour/graphnode.cc:101
#4  0x00007ffff66611a2 in ARDOUR::GraphNode::run (this=0x55555c1a9000, chain=0x7fff44003990) at ../libs/ardour/graphnode.cc:68
#5  0x00007ffff665505c in ARDOUR::Graph::run_one (this=0x55555863daf0) at ../libs/ardour/graph.cc:344
#6  0x00007ffff6655445 in ARDOUR::Graph::helper_thread (this=0x55555863daf0) at ../libs/ardour/graph.cc:372
#7  0x00007ffff6660717 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffef3fdef8, p=0x55555863daf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#8  0x00007ffff665fad4 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffef3fdf08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#9  0x00007ffff665eb0b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffef3fdef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#10 0x00007ffff665d55b 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
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on/function_template.hpp:159
#8  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x7fffef7fdef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007fffc28822f9 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555e498f90) at ../libs/backends/alsa/alsa_audiobackend.cc:1214
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 44 (Thread 0x7fffefaf6900 (LWP 6891) "RT-4-0x7fffefaf"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2d374b8 in PBD::Semaphore::wait (this=0x55555863dc24) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6654ea5 in ARDOUR::Graph::run_one (this=0x55555863daf0) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6655445 in ARDOUR::Graph::helper_thread (this=0x55555863daf0) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6660717 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffefaf5ef8, p=0x55555863daf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff665fad4 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffefaf5f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff665eb0b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffefaf5ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff665d55b 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
#8  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x7fffefaf5ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007fffc28822f9 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x555559250a10) at ../libs/backends/als--Type <RET> for more, q to quit, c to continue without paging--

a/alsa_audiobackend.cc:1214
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 43 (Thread 0x7fffefb7a900 (LWP 6890) "RT-3-0x7fffefb7"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2d374b8 in PBD::Semaphore::wait (this=0x55555863dc24) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6654ea5 in ARDOUR::Graph::run_one (this=0x55555863daf0) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6655445 in ARDOUR::Graph::helper_thread (this=0x55555863daf0) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6660717 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffefb79ef8, p=0x55555863daf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff665fad4 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffefb79f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff665eb0b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffefb79ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff665d55b 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
#8  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x7fffefb79ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007fffc28822f9 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x555558d304d0) at ../libs/backends/alsa/alsa_audiobackend.cc:1214
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

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Thread 42 (Thread 0x7fffefbfe900 (LWP 6889) "RT-2-0x7fffefbf"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2d374b8 in PBD::Semaphore::wait (this=0x55555863dc24) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6654ea5 in ARDOUR::Graph::run_one (this=0x55555863daf0) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6655445 in ARDOUR::Graph::helper_thread (this=0x55555863daf0) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6660717 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffefbfdef8, p=0x55555863daf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff665fad4 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffefbfdf08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff665eb0b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffefbfdef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff665d55b 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
#8  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x7fffefbfdef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007fffc28822f9 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555cb3a600) at ../libs/backends/alsa/alsa_audiobackend.cc:1214
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 41 (Thread 0x7fffeff09900 (LWP 6888) "RT-1-0x7fffeff0"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2d374b8 in PBD::Semaphore::wait (this=0x55555863dc24) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6654ea5 in ARDOUR::Graph::run_one (this=0x55555863daf0) at ../libs/ardour/graph.cc:320
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#3  0x00007ffff6655445 in ARDOUR::Graph::helper_thread (this=0x55555863daf0) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6660717 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffeff08ef8, p=0x55555863daf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff665fad4 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffeff08f08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff665eb0b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffeff08ef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff665d55b 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
#8  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x7fffeff08ef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007fffc28822f9 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x5555595cf6f0) at ../libs/backends/alsa/alsa_audiobackend.cc:1214
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 40 (Thread 0x7fffeff8d900 (LWP 6887) "RT-main-0x7fffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff2d374b8 in PBD::Semaphore::wait (this=0x55555863dc24) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6654ea5 in ARDOUR::Graph::run_one (this=0x55555863daf0) at ../libs/ardour/graph.cc:320
#3  0x00007ffff66558a7 in ARDOUR::Graph::main_thread (this=0x55555863daf0) at ../libs/ardour/graph.cc:425
#4  0x00007ffff6660717 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffeff8cef8, p=0x55555863daf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff665fad4 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, A--Type <RET> for more, q to quit, c to continue without paging--


RDOUR::Graph>, boost::_bi::list0> (this=0x7fffeff8cf08, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff665eb0b in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffeff8cef8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff665d55b 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
#8  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x7fffeff8cef0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#9  0x00007fffc28822f9 in ARDOUR::AlsaAudioBackend::alsa_process_thread (arg=0x55555e28d740) at ../libs/backends/alsa/alsa_audiobackend.cc:1214
#10 0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fffab3ff700 (LWP 6843) "ALSA-MIDI-LIST"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7fff8c000b80, nfds=1, timeout=200) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffc28834a8 in ARDOUR::AlsaAudioBackend::midi_device_thread (this=0x555557d5e4c0) at ../libs/backends/alsa/alsa_audiobackend.cc:1412
#2  0x00007fffc2883340 in ARDOUR::AlsaAudioBackend::_midi_device_thread (arg=0x555557d5e4c0) at ../libs/backends/alsa/alsa_audiobackend.cc:1375
#3  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7ffff039e900 (LWP 6842) "AudioEngine 1"):
#0  0x00007ffff391ba66 in __ppoll (fds=0x555557fb97ac, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/u--Type <RET> for more, q to quit, c to continue without paging--

-Type <RET> for more, q to quit, c to continue without paging--<RET>
nix/sysv/linux/ppoll.c:44
#1  0x00007fffc28b3858 in Alsa_pcmi::pcm_wait (this=0x555557fb9720) at ../libs/backends/alsa/zita-alsa-pcmi.cc:178
#2  0x00007fffc2885ea9 in ARDOUR::AlsaAudioBackend::main_process_thread (this=0x555557d5e4c0) at ../libs/backends/alsa/alsa_audiobackend.cc:1862
#3  0x00007fffc287fc81 in pthread_process (arg=0x555557d5e4c0) at ../libs/backends/alsa/alsa_audiobackend.cc:806
#4  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7ffff176f900 (LWP 6841) "AlsaMidiIO"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x5555577d7b60, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffc28add28 in ARDOUR::AlsaRawMidiIn::main_process_thread (this=0x5555578d96d0) at ../libs/backends/alsa/alsa_rawmidi.cc:255
#2  0x00007fffc28ab643 in pthread_process (arg=0x5555578d9b28) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7ffff177b900 (LWP 6840) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5555587d9e18) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555587d9dc8, cond=0x5555587d9df0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5555587d9df0, mutex=0x5555587d9dc8) at pthread_cond_wait.c:638
#3  0x00007fffc28ad60c in ARDOUR::AlsaRawMidiOut::main_process_thread (this=0x5555587d9da0) at ../libs/backends/alsa/alsa_rawmidi.cc:150
#4  0x00007fffc28ab643 in pthread_process (arg=0x5555587d9db8) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
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#6  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7ffff1e98900 (LWP 6839) "AlsaMidiIO"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x5555577cd4b0, nfds=1, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffc28add28 in ARDOUR::AlsaRawMidiIn::main_process_thread (this=0x5555578e3280) at ../libs/backends/alsa/alsa_rawmidi.cc:255
#2  0x00007fffc28ab643 in pthread_process (arg=0x5555578e36d8) at ../libs/backends/alsa/alsa_midi.cc:68
#3  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7ffff22be900 (LWP 6838) "AlsaMidiIO"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5555587dfc08) at ../sysdeps/nptl/futex-internal.h:186
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555587dfbb8, cond=0x5555587dfbe0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5555587dfbe0, mutex=0x5555587dfbb8) at pthread_cond_wait.c:638
#3  0x00007fffc28ad60c in ARDOUR::AlsaRawMidiOut::main_process_thread (this=0x5555587dfb90) at ../libs/backends/alsa/alsa_rawmidi.cc:150
#4  0x00007fffc28ab643 in pthread_process (arg=0x5555587dfba8) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffc0fff700 (LWP 6837) "ExecStdOut"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7fffc0ffcc90, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2d47b9e in PBD::SystemExec::output_interposer (this=0x555557fcc6c0) at ../libs/pbd/system_exec.cc:890--Type <RET> for more, q to quit, c to continue without paging--Quit
(gdb) 



--Type <RET> for more, q to quit, c to continue without paging--<RET>
#3  0x00007fffc28ad60c in ARDOUR::AlsaRawMidiOut::main_process_thread (this=0x5555587dfb90) at ../libs/backends/alsa/alsa_rawmidi.cc:150
#4  0x00007fffc28ab643 in pthread_process (arg=0x5555587dfba8) at ../libs/backends/alsa/alsa_midi.cc:68
#5  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fffc0fff700 (LWP 6837) "ExecStdOut"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7fffc0ffcc90, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2d47b9e in PBD::SystemExec::output_interposer (this=0x555557fcc6c0) at ../libs/pbd/system_exec.cc:890
#2  0x00007ffff2d46cc4 in interposer_thread (arg=0x555557fcc6c0) at ../libs/pbd/system_exec.cc:282
#3  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fffabfff700 (LWP 6826) "gmain"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x5555576d88e0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff1456c76 in ?? () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff1456d8c in g_main_context_iteration () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff1456dd1 in ?? () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff14874a5 in ?? () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#5  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fffc37ff700 (LWP 6801) "DeviceList"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
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#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff64916d1 in ARDOUR::AudioEngine::do_devicelist_update (this=0x5555574ea450) at ../libs/ardour/audioengine.cc:760
#3  0x00007ffff649fe13 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555574e61f0, p=0x5555574ea450) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff649f34e in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555574e6200, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff649e9b7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555574e61f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff649db3f 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x5555574e61e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x5555574e61c0) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffcbfff700 (LWP 6800) "EngineWatchdog"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6491453 in ARDOUR::AudioEngine::do_reset_backend (this=0x5555574ea450) at ../libs/ardour/audioengine.cc:724
#3  0x00007ffff649fe13 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555574e6670, p=0x5555574ea450) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
--Type <RET> for more, q to quit, c to continue without paging--

#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff64916d1 in ARDOUR::AudioEngine::do_devicelist_update (this=0x5555574ea450) at ../libs/ardour/audioengine.cc:760
#3  0x00007ffff649fe13 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555574e61f0, p=0x5555574ea450) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff649f34e in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555574e6200, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff649e9b7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555574e61f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff649db3f 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x5555574e61e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x5555574e61c0) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffcbfff700 (LWP 6800) "EngineWatchdog"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6491453 in ARDOUR::AudioEngine::do_reset_backend (this=0x5555574ea450) at ../libs/ardour/audioengine.cc:724
#3  0x00007ffff649fe13 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555574e6670, p=0x5555574ea450) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
--Type <RET> for more, q to quit, c to continue without paging--

--Type <RET> for more, q to quit, c to continue without paging--<RET>
#4  0x00007ffff649f34e in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555574e6680, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff649e9b7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555574e6670) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff649db3f 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x5555574e6668) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#8  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x5555574e6640) at ../libs/pbd/pthread_utils.cc:488
#9  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fffde7fc700 (LWP 6797) "Analyzer"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff643f756 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:95
#3  0x00005555564ec26d in sigc::pointer_functor0<void>::operator() (this=0x5555574c9ee0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00007ffff6442aca 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x5555574c9ed8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#6  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x5555574c9eb0) at ../libs/pbd/pthread_utils.cc:488
--Type <RET> for more, q to quit, c to continue without paging--

#7  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffdeffd700 (LWP 6796) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6aeb0a5 in peak_thread_work () at ../libs/ardour/source_factory.cc:75
#3  0x00007ffff7848925 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x5555574ca7a8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#5  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x5555574ca780) at ../libs/pbd/pthread_utils.cc:488
#6  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffdf7fe700 (LWP 6795) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff14aa47f in g_cond_wait () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6aeb0a5 in peak_thread_work () at ../libs/ardour/source_factory.cc:75
#3  0x00007ffff7848925 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  0x0000555555b728c8 in boost::function0<void>::operator() (this=0x5555574ca498) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#5  0x00007ffff2d30ff3 in PBD::Thread::_run (arg=0x5555574ca470) at ../libs/pbd/pthread_utils.cc:488
#6  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

--Type <RET> for more, q to quit, c to continue without paging--

Thread 3 (Thread 0x7fffdffff700 (LWP 6794) "LXVSTEventLoop"):
#0  0x00007ffff38ee1a1 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7fffdfffebf0, rem=0x7fffdfffec00) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1  0x00007ffff38f3983 in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2  0x00007ffff1488d48 in g_usleep () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#3  0x00005555569d4a07 in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ffff49ff700 (LWP 6793) "Trigger Worker"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7ffff49febc4, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2d0b1f0 in CrossThreadChannel::poll_for_request (this=0x55555747f7e0) at ../libs/pbd/crossthread.posix.cc:108
#2  0x00007ffff2d0b261 in CrossThreadChannel::receive (this=0x55555747f7e0, msg=@0x7ffff49fec2f: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff6b4ae47 in ARDOUR::TriggerBoxThread::thread_work (this=0x55555747f7b0) at ../libs/ardour/triggerbox.cc:4854
#4  0x00007ffff6b4addd in ARDOUR::TriggerBoxThread::_thread_work (arg=0x55555747f7b0) at ../libs/ardour/triggerbox.cc:4842
#5  0x00007ffff2d30547 in fake_thread_start (arg=0x5555574492d0) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffff7aa2080 (LWP 6786) "ArdourGUI"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x5555578eced0, nfds=4, timeout=8) at ../sysdeps/unix/sysv/linux/poll.c:2--Type <RET> for more, q to quit, c to continue without paging--

#5  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ffff49ff700 (LWP 6793) "Trigger Worker"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x7ffff49febc4, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff2d0b1f0 in CrossThreadChannel::poll_for_request (this=0x55555747f7e0) at ../libs/pbd/crossthread.posix.cc:108
#2  0x00007ffff2d0b261 in CrossThreadChannel::receive (this=0x55555747f7e0, msg=@0x7ffff49fec2f: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff6b4ae47 in ARDOUR::TriggerBoxThread::thread_work (this=0x55555747f7b0) at ../libs/ardour/triggerbox.cc:4854
#4  0x00007ffff6b4addd in ARDOUR::TriggerBoxThread::_thread_work (arg=0x55555747f7b0) at ../libs/ardour/triggerbox.cc:4842
#5  0x00007ffff2d30547 in fake_thread_start (arg=0x5555574492d0) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007ffff7f79ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007ffff3927a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffff7aa2080 (LWP 6786) "ArdourGUI"):
#0  0x00007ffff391b96f in __GI___poll (fds=0x5555578eced0, nfds=4, timeout=8) at ../sysdeps/unix/sysv/linux/poll.c:2--Type <RET> for more, q to quit, c to continue without paging--<RET>
9
#1  0x00007ffff1456c76 in ?? () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff1457002 in g_main_loop_run () from /opt/Ardour-7.4.211-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff05834c7 in gtk_main () from /opt/Ardour-7.4.211-dbg/lib/libgtk-x11-2.0.so.0
#4  0x00007ffff313f2f4 in Gtkmm2ext::UI::run (this=0x555557adc8f0, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:305
#5  0x00005555561d003f in main (argc=1, argv=0x7fffffffd5b8) at ../gtk2_ardour/main.cc:471
(gdb)