Thread 76 (Thread 0x7fff377fe6c0 (LWP 132061) "AutomationWatch"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31e2fba in clock_nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff31ee3d3 in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff3ef842f in g_usleep () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#5  0x00007ffff6c359e4 in ARDOUR::AutomationWatch::thread (this=0x7fff9800c6d0) at ../libs/ardour/automation_watch.cc:206
#6  0x00007ffff6c3abcb in std::__invoke_impl<void, void (ARDOUR::AutomationWatch::*&)(), ARDOUR::AutomationWatch*&> (__f=@0x55555804a620: (void (ARDOUR::AutomationWatch::*)(ARDOUR::AutomationWatch * const)) 0x7ffff6c3594a <ARDOUR::AutomationWatch::thread()>, __t=@0x55555804a630: 0x7fff9800c6d0) at /usr/include/c++/10/bits/invoke.h:73
#7  0x00007ffff6c3a924 in std::__invoke<void (ARDOUR::AutomationWatch::*&)(), ARDOUR::AutomationWatch*&> (__fn=@0x55555804a620: (void (ARDOUR::AutomationWatch::*)(ARDOUR::AutomationWatch * const)) 0x7ffff6c3594a <ARDOUR::AutomationWatch::thread()>) at /usr/include/c++/10/bits/invoke.h:95
#8  0x00007ffff6c3a714 in std::_Bind<void (ARDOUR::AutomationWatch::*(ARDOUR::AutomationWatch*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55555804a620, __args=...) at /usr/include/c++/10/functional:416
#9  0x00007ffff6c3a204 in std::_Bind<void (ARDOUR::AutomationWatch::*(ARDOUR::AutomationWatch*))()>::operator()<, void>() (this=0x55555804a620) at /usr/include/c++/10/functional:499
#10 0x00007ffff6c39d50 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::AutomationWatch::*(ARDOUR::AutomationWatch*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::AutomationWatch::*(ARDOUR::AutomationWatch*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#11 0x00007ffff6c38e4e in std::__invoke_r<void, std::_Bind<void (ARDOUR::AutomationWatch::*(ARDOUR::AutomationWatch*))()>&>(std::_Bind<void (ARDOUR::AutomationWatch::*(ARDOUR::AutomationWatch*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#12 0x00007ffff6c37881 in std::_Function_handler<void (), std::_Bind<void (ARDOUR::AutomationWatch::*(ARDOUR::AutomationWatch*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#13 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x55555b4510c8) at /usr/include/c++/10/bits/std_function.h:622
#14 0x00007ffff4d191dd in PBD::Thread::_run (arg=0x55555b4510a0) at ../libs/pbd/pthread_utils.cc:594
#15 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#16 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 75 (Thread 0x7fff37fff6c0 (LWP 132060) "AutoConnect"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff3196c8c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff3199158 in pthread_cond_wait () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff719e514 in ARDOUR::Session::auto_connect_thread_run (this=0x55555a140800) at ../libs/ardour/session.cc:8131
#5  0x00007ffff719df54 in ARDOUR::Session::auto_connect_thread (arg=0x55555a140800) at ../libs/ardour/session.cc:8063
#6  0x00007ffff4d17ef1 in fake_thread_start (arg=0x55555cc44e40) at ../libs/pbd/pthread_utils.cc:199
#7  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 74 (Thread 0x7fff44ff96c0 (LWP 132059) "SessionSignals"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff3196c8c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff3199158 in pthread_cond_wait () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff722d4bb in ARDOUR::Session::emit_thread_run (this=0x55555a140800) at ../libs/ardour/session_process.cc:1232
#5  0x00007ffff722d45a in ARDOUR::Session::emit_thread (arg=0x55555a140800) at ../libs/ardour/session_process.cc:1222
#6  0x00007ffff4d17ef1 in fake_thread_start (arg=0x55555cc44e80) at ../libs/pbd/pthread_utils.cc:199
#7  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 73 (Thread 0x7fff457fa6c0 (LWP 132058) "Ctrl USB Hotplu"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31966ad in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff320aa06 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff30f52e5 in ?? () from /opt/Ardour-9.7.90-dbg/lib/libusb-1.0.so.0
#5  0x00007ffff30f6262 in libusb_handle_events_timeout_completed () from /opt/Ardour-9.7.90-dbg/lib/libusb-1.0.so.0
#6  0x00007ffff30f63ea in libusb_handle_events () from /opt/Ardour-9.7.90-dbg/lib/libusb-1.0.so.0
#7  0x00007ffff6c653f0 in usb_hotplug_thread (user_data=0x5555577bb1c0) at ../libs/ardour/control_protocol_manager.cc:90
#8  0x00007ffff4d17ef1 in fake_thread_start (arg=0x55555ff84850) at ../libs/pbd/pthread_utils.cc:199
#9  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 72 (Thread 0x7fff45ffb6c0 (LWP 132057) "ArdourGUI"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31966ad in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff320aa06 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff30fcd00 in ?? () from /opt/Ardour-9.7.90-dbg/lib/libusb-1.0.so.0
#5  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 71 (Thread 0x7fff467fc6c0 (LWP 132056) "midiUI"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31966ad in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff320aa06 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff3ec9c8e in ?? () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#5  0x00007ffff3eca023 in g_main_loop_run () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#6  0x00007ffff4cb1743 in BaseUI::main_thread (this=0x555558c18170) at ../libs/pbd/base_ui.cc:101
#7  0x00007ffff4cb6849 in std::__invoke_impl<void, void (BaseUI::*&)(), BaseUI*&> (__f=@0x55555d66fc60: (void (BaseUI::*)(BaseUI * const)) 0x7ffff4cb153a <BaseUI::main_thread()>, __t=@0x55555d66fc70: 0x555558c18170) at /usr/include/c++/10/bits/invoke.h:73
#8  0x00007ffff4cb666d in std::__invoke<void (BaseUI::*&)(), BaseUI*&> (__fn=@0x55555d66fc60: (void (BaseUI::*)(BaseUI * const)) 0x7ffff4cb153a <BaseUI::main_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#9  0x00007ffff4cb64d2 in std::_Bind<void (BaseUI::*(BaseUI*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55555d66fc60, __args=...) at /usr/include/c++/10/functional:416
#10 0x00007ffff4cb61b2 in std::_Bind<void (BaseUI::*(BaseUI*))()>::operator()<, void>() (this=0x55555d66fc60) at /usr/include/c++/10/functional:499
#11 0x00007ffff4cb5c2a in std::__invoke_impl<void, std::_Bind<void (BaseUI::*(BaseUI*))()>&>(std::__invoke_other, std::_Bind<void (BaseUI::*(BaseUI*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#12 0x00007ffff4cb53ba in std::__invoke_r<void, std::_Bind<void (BaseUI::*(BaseUI*))()>&>(std::_Bind<void (BaseUI::*(BaseUI*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#13 0x00007ffff4cb4901 in std::_Function_handler<void (), std::_Bind<void (BaseUI::*(BaseUI*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#14 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x55555ff845b8) at /usr/include/c++/10/bits/std_function.h:622
#15 0x00007ffff4d191dd in PBD::Thread::_run (arg=0x55555ff84590) at ../libs/pbd/pthread_utils.cc:594
#16 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#17 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 70 (Thread 0x7fffd8696940 (LWP 132055) "butler"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31966ad in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff320aa06 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff4cc9cc6 in CrossThreadChannel::poll_for_request (this=0x55555a2426c8) at ../libs/pbd/crossthread.posix.cc:108
#5  0x00007ffff4cc9d37 in CrossThreadChannel::receive (this=0x55555a2426c8, msg=@0x7fffd86954ef: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#6  0x00007ffff6c4aea9 in ARDOUR::Butler::thread_work (this=0x55555a2425b0) at ../libs/ardour/butler.cc:208
#7  0x00007ffff6c4a76d in ARDOUR::Butler::_thread_work (arg=0x55555a2425b0) at ../libs/ardour/butler.cc:178
#8  0x00007ffff4d17ef1 in fake_thread_start (arg=0x55555d66fa90) at ../libs/pbd/pthread_utils.cc:199
#9  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 69 (Thread 0x7fff5cff96c0 (LWP 132054) "IO-37-0x7fff5cf"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 68 (Thread 0x7fff567fc6c0 (LWP 132053) "IO-36-0x7fff567"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 67 (Thread 0x7fff6cff96c0 (LWP 132052) "IO-35-0x7fff6cf"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 66 (Thread 0x7fff6effd6c0 (LWP 132051) "IO-34-0x7fff6ef"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 65 (Thread 0x7fff75ffb6c0 (LWP 132050) "IO-33-0x7fff75f"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 64 (Thread 0x7fff6f7fe6c0 (LWP 132049) "IO-32-0x7fff6f7"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 63 (Thread 0x7fffadffb6c0 (LWP 132048) "IO-31-0x7fffadf"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 62 (Thread 0x7fffb57fa6c0 (LWP 132047) "IO-30-0x7fffb57"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 61 (Thread 0x7fffb7fff6c0 (LWP 132046) "IO-29-0x7fffb7f"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 60 (Thread 0x7fffb67fc6c0 (LWP 132045) "IO-28-0x7fffb67"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555a0edebc) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e0e633 in ARDOUR::IOTaskList::io_thread (this=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e0e560 in ARDOUR::IOTaskList::_worker_thread (me=0x55555a0ede80) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 59 (Thread 0x7fffd871a940 (LWP 132044) "RT-10-0x7fffd87"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff80000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fff80000b80: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff80000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff80000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff80000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd8719f10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x55556042dbf0) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 58 (Thread 0x7fffd879e940 (LWP 132043) "RT-9-0x7fffd879"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff8c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fff8c000b80: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff8c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff8c000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff8c000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd879df10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555559633fc0) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 57 (Thread 0x7fffd8822940 (LWP 132042) "RT-8-0x7fffd882"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff88000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fff88000b80: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff88000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff88000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff88000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd8821f10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555557b55900) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 56 (Thread 0x7fffd88a6940 (LWP 132041) "RT-7-0x7fffd88a"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff94000fa0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fff94000fb0: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff94000fa0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff94000fa0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff94000fa0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd88a5f10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555559404930) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 55 (Thread 0x7fffd892a940 (LWP 132040) "RT-6-0x7fffd892"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36da0) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99945 in ARDOUR::Graph::reached_terminal_node (this=0x55555dd36c40) at ../libs/ardour/graph.cc:267
#3  0x00007ffff6da5c8f in ARDOUR::GraphNode::finish (this=0x55555d7e84e0, chain=0x7fff9801efb0) at ../libs/ardour/graphnode.cc:107
#4  0x00007ffff6da5b74 in ARDOUR::GraphNode::run (this=0x55555d7e84e0, chain=0x7fff9801efb0) at ../libs/ardour/graphnode.cc:74
#5  0x00007ffff6d9a0bc in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:344
#6  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#7  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff9c004150: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fff9c004160: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#8  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff9c004150: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#9  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff9c004150, __args=...) at /usr/include/c++/10/functional:416
#10 0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff9c004150) at /usr/include/c++/10/functional:499
#11 0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#12 0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#13 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#14 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd8929f10) at /usr/include/c++/10/bits/std_function.h:622
#15 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555559d524e0) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#16 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#17 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 54 (Thread 0x7fffd89ae940 (LWP 132039) "RT-5-0x7fffd89a"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fffa4001390: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fffa40013a0: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fffa4001390: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fffa4001390, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fffa4001390) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd89adf10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x5555596f3010) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 53 (Thread 0x7fffd8a32940 (LWP 132038) "RT-4-0x7fffd8a3"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fffb00012f0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fffb0001300: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fffb00012f0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fffb00012f0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fffb00012f0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd8a31f10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555557c0c870) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 52 (Thread 0x7fffd8ab6940 (LWP 132037) "RT-3-0x7fffd8ab"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff900046d0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fff900046e0: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff900046d0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff900046d0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff900046d0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd8ab5f10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555557c41ae0) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 51 (Thread 0x7fffd8b3a940 (LWP 132036) "RT-2-0x7fffd8b3"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fffbc0021c0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fffbc0021d0: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fffbc0021c0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fffbc0021c0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fffbc0021c0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd8b39f10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555557d8d4a0) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 50 (Thread 0x7fffd8bbe940 (LWP 132035) "RT-1-0x7fffd8bb"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a49f in ARDOUR::Graph::helper_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fffc0003920: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>, __t=@0x7fffc0003930: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fffc0003920: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a2b4 <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fffc0003920, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fffc0003920) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd8bbdf10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555559d44eb0) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 49 (Thread 0x7fffd94ae940 (LWP 132034) "RT-main-0x7fffd"):
#0  0x00007ffff32157b9 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4d2100c in PBD::Semaphore::wait (this=0x55555dd36d94) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6d99f0c in ARDOUR::Graph::run_one (this=0x55555dd36c40) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6d9a90b in ARDOUR::Graph::main_thread (this=0x55555dd36c40) at ../libs/ardour/graph.cc:425
#4  0x00007ffff6da5337 in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fffa80013a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a556 <ARDOUR::Graph::main_thread()>, __t=@0x7fffa80013b0: 0x55555dd36c40) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6da5013 in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fffa80013a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6d9a556 <ARDOUR::Graph::main_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6da47c6 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fffa80013a0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6da3b52 in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fffa80013a0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6da2785 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff6da0b07 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&>(std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff6d9fa9e in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x7fffd94adf10) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffdb730710 in ARDOUR::DummyAudioBackend::dummy_process_thread (arg=0x555559d52520) at ../libs/backends/dummy/dummy_audiobackend.cc:524
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 35 (Thread 0x7fffd9afa940 (LWP 132013) "AudioEngine 1"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31e2fba in clock_nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff31ee3d3 in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff3ef842f in g_usleep () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#5  0x00007fffdb733347 in ARDOUR::DummyAudioBackend::main_process_thread (this=0x55555791f080) at ../libs/backends/dummy/dummy_audiobackend.cc:976
#6  0x00007fffdb7300d3 in pthread_process (arg=0x55555791f080) at ../libs/backends/dummy/dummy_audiobackend.cc:403
#7  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7fffd93c06c0 (LWP 131919) "gmain"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31966ad in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff320aa06 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff3ec9c8e in ?? () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#5  0x00007ffff3ec9d9f in g_main_context_iteration () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#6  0x00007ffff3ec9df1 in ?? () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#7  0x00007ffff3ef6c35 in ?? () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#8  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7fffdbfa66c0 (LWP 131893) "DeviceList"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff3196c8c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff3199158 in pthread_cond_wait () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff34cb647 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x0000555556c3090a in std::_V2::condition_variable_any::wait<PBD::Mutex> (this=0x555557f1a4c0, __lock=...) at /usr/include/c++/10/condition_variable:321
#6  0x0000555556c305fd in PBD::Cond::wait (this=0x555557f1a4c0, mutex=...) at ../libs/pbd/pbd/mutex.h:124
#7  0x00007ffff6bbc956 in ARDOUR::AudioEngine::do_devicelist_update (this=0x555557f196e0) at ../libs/ardour/audioengine.cc:757
#8  0x00007ffff6bc990e in std::__invoke_impl<void, void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__f=@0x555557f2f240: (void (ARDOUR::AudioEngine::*)(ARDOUR::AudioEngine * const)) 0x7ffff6bbc7f6 <ARDOUR::AudioEngine::do_devicelist_update()>, __t=@0x555557f2f250: 0x555557f196e0) at /usr/include/c++/10/bits/invoke.h:73
#9  0x00007ffff6bc97b5 in std::__invoke<void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__fn=@0x555557f2f240: (void (ARDOUR::AudioEngine::*)(ARDOUR::AudioEngine * const)) 0x7ffff6bbc7f6 <ARDOUR::AudioEngine::do_devicelist_update()>) at /usr/include/c++/10/bits/invoke.h:95
#10 0x00007ffff6bc95d4 in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x555557f2f240, __args=...) at /usr/include/c++/10/functional:416
#11 0x00007ffff6bc902c in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::operator()<, void>() (this=0x555557f2f240) at /usr/include/c++/10/functional:499
#12 0x00007ffff6bc887c in std::__invoke_impl<void, std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#13 0x00007ffff6bc7756 in std::__invoke_r<void, std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&>(std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#14 0x00007ffff6bc5f5b in std::_Function_handler<void (), std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#15 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x555557f17148) at /usr/include/c++/10/bits/std_function.h:622
#16 0x00007ffff4d191dd in PBD::Thread::_run (arg=0x555557f17120) at ../libs/pbd/pthread_utils.cc:594
#17 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#18 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7fffe25f56c0 (LWP 131892) "EngineWatchdog"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff3196c8c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff3199158 in pthread_cond_wait () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff34cb647 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x0000555556c3090a in std::_V2::condition_variable_any::wait<PBD::Mutex> (this=0x555557f1a440, __lock=...) at /usr/include/c++/10/condition_variable:321
#6  0x0000555556c305fd in PBD::Cond::wait (this=0x555557f1a440, mutex=...) at ../libs/pbd/pbd/mutex.h:124
#7  0x00007ffff6bbc6fe in ARDOUR::AudioEngine::do_reset_backend (this=0x555557f196e0) at ../libs/ardour/audioengine.cc:722
#8  0x00007ffff6bc990e in std::__invoke_impl<void, void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__f=@0x555557f2f220: (void (ARDOUR::AudioEngine::*)(ARDOUR::AudioEngine * const)) 0x7ffff6bbc33a <ARDOUR::AudioEngine::do_reset_backend()>, __t=@0x555557f2f230: 0x555557f196e0) at /usr/include/c++/10/bits/invoke.h:73
#9  0x00007ffff6bc97b5 in std::__invoke<void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__fn=@0x555557f2f220: (void (ARDOUR::AudioEngine::*)(ARDOUR::AudioEngine * const)) 0x7ffff6bbc33a <ARDOUR::AudioEngine::do_reset_backend()>) at /usr/include/c++/10/bits/invoke.h:95
#10 0x00007ffff6bc95d4 in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x555557f2f220, __args=...) at /usr/include/c++/10/functional:416
#11 0x00007ffff6bc902c in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::operator()<, void>() (this=0x555557f2f220) at /usr/include/c++/10/functional:499
#12 0x00007ffff6bc887c in std::__invoke_impl<void, std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#13 0x00007ffff6bc7756 in std::__invoke_r<void, std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&>(std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#14 0x00007ffff6bc5f5b in std::_Function_handler<void (), std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#15 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x555557f195a8) at /usr/include/c++/10/bits/std_function.h:622
#16 0x00007ffff4d191dd in PBD::Thread::_run (arg=0x555557f19580) at ../libs/pbd/pthread_utils.cc:594
#17 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#18 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fffe37fe6c0 (LWP 131889) "Analyzer"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff3196c8c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff3199158 in pthread_cond_wait () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff34cb647 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x0000555556c3090a in std::_V2::condition_variable_any::wait<PBD::Mutex> (this=0x7ffff7e70ca0 <ARDOUR::Analyser::SourcesToAnalyse>, __lock=...) at /usr/include/c++/10/condition_variable:321
#6  0x0000555556c305fd in PBD::Cond::wait (this=0x7ffff7e70ca0 <ARDOUR::Analyser::SourcesToAnalyse>, mutex=...) at ../libs/pbd/pbd/mutex.h:124
#7  0x00007ffff6b84684 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:96
#8  0x0000555555e78037 in sigc::pointer_functor0<void>::operator() (this=0x555557854478) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#9  0x00007ffff6b87f62 in std::__invoke_impl<void, sigc::pointer_functor0<void>&> (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#10 0x00007ffff6b877f5 in std::__invoke_r<void, sigc::pointer_functor0<void>&> (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#11 0x00007ffff6b86a32 in std::_Function_handler<void(), sigc::pointer_functor0<void> >::_M_invoke (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#12 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x555557854478) at /usr/include/c++/10/bits/std_function.h:622
#13 0x00007ffff4d191dd in PBD::Thread::_run (arg=0x555557854450) at ../libs/pbd/pthread_utils.cc:594
#14 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#15 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fffe3fff6c0 (LWP 131888) "PeakFileBuilder"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff3196c8c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff3199158 in pthread_cond_wait () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff34cb647 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x0000555556c3090a in std::_V2::condition_variable_any::wait<PBD::Mutex> (this=0x7ffff7e753e0 <ARDOUR::SourceFactory::PeaksToBuild>, __lock=...) at /usr/include/c++/10/condition_variable:321
#6  0x0000555556c305fd in PBD::Cond::wait (this=0x7ffff7e753e0 <ARDOUR::SourceFactory::PeaksToBuild>, mutex=...) at ../libs/pbd/pbd/mutex.h:124
#7  0x00007ffff72da605 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#8  0x00007ffff7f249bd in std::__invoke_impl<void, void (*&)()> (__f=@0x555557854418: 0x7ffff72da557 <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff7f23ec9 in std::__invoke_r<void, void (*&)()> (__fn=@0x555557854418: 0x7ffff72da557 <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff7f22dad in std::_Function_handler<void(), void (*)()>::_M_invoke (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x555557854418) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007ffff4d191dd in PBD::Thread::_run (arg=0x5555578543f0) at ../libs/pbd/pthread_utils.cc:594
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7ffff0da06c0 (LWP 131887) "PeakFileBuilder"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff3196c8c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff3199158 in pthread_cond_wait () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff34cb647 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x0000555556c3090a in std::_V2::condition_variable_any::wait<PBD::Mutex> (this=0x7ffff7e753e0 <ARDOUR::SourceFactory::PeaksToBuild>, __lock=...) at /usr/include/c++/10/condition_variable:321
#6  0x0000555556c305fd in PBD::Cond::wait (this=0x7ffff7e753e0 <ARDOUR::SourceFactory::PeaksToBuild>, mutex=...) at ../libs/pbd/pbd/mutex.h:124
#7  0x00007ffff72da605 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#8  0x00007ffff7f249bd in std::__invoke_impl<void, void (*&)()> (__f=@0x555557854ad8: 0x7ffff72da557 <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:60
#9  0x00007ffff7f23ec9 in std::__invoke_r<void, void (*&)()> (__fn=@0x555557854ad8: 0x7ffff72da557 <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:110
#10 0x00007ffff7f22dad in std::_Function_handler<void(), void (*)()>::_M_invoke (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#11 0x0000555555dd07b6 in std::function<void()>::operator() (this=0x555557854ad8) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007ffff4d191dd in PBD::Thread::_run (arg=0x555557854ab0) at ../libs/pbd/pthread_utils.cc:594
#13 0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7ffff15a16c0 (LWP 131886) "LXVSTEventLoop"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31e2fba in clock_nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff31ee3d3 in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff3ef842f in g_usleep () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#5  0x0000555556e2a21e in gui_event_loop () at ../gtk2_ardour/linux_vst_gui_support.cc:463
#6  0x00007ffff4d17ef1 in fake_thread_start (arg=0x555557851a20) at ../libs/pbd/pthread_utils.cc:199
#7  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7ffff172d940 (LWP 131885) "TriggerBox Work"):
#0  0x00007ffff31a19ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff3196668 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff31966ad in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff320aa06 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff4cc9cc6 in CrossThreadChannel::poll_for_request (this=0x555557807c80) at ../libs/pbd/crossthread.posix.cc:108
#5  0x00007ffff4cc9d37 in CrossThreadChannel::receive (this=0x555557807c80, msg=@0x7ffff172cd6f: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#6  0x00007ffff735f117 in ARDOUR::TriggerBoxThread::thread_work (this=0x555557807c50) at ../libs/ardour/triggerbox.cc:5857
#7  0x00007ffff735f0bb in ARDOUR::TriggerBoxThread::_thread_work (arg=0x555557807c50) at ../libs/ardour/triggerbox.cc:5847
#8  0x00007ffff4d17ef1 in fake_thread_start (arg=0x5555577c9510) at ../libs/pbd/pthread_utils.cc:199
#9  0x00007ffff3199b7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x00007ffff32177f8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7ffff1c6d940 (LWP 131882) "ArdourGUI"):
#0  0x0000555555f7f6ee in ArdourCanvas::Rect::height (this=0x1000001d1) at ../libs/canvas/canvas/types.h:196
#1  0x00005555560f49c8 in ArdourCanvas::Rectangle::height (this=0x100000001) at ../libs/canvas/canvas/rectangle.h:63
#2  0x00005555567351bd in PianorollMidiView::partition_height (this=0x555565828750) at ../gtk2_ardour/pianoroll_midi_view.cc:411
#3  0x000055555670ae35 in Pianoroll::partition_height (this=0x5555656fab90) at ../gtk2_ardour/pianoroll.cc:892
#4  0x0000555556712e32 in Pianoroll::add_automation_lane (this=0x5555656fab90, param=...) at ../gtk2_ardour/pianoroll.cc:2181
#5  0x0000555556706acd in Pianoroll::toggle_automation (this=0x5555656fab90, param=...) at ../gtk2_ardour/pianoroll.cc:314
#6  0x0000555556706b13 in operator() (__closure=0x5555658780c0) at ../gtk2_ardour/pianoroll.cc:337
#7  0x00005555567230d4 in sigc::adaptor_functor<Pianoroll::add_single_controller_item(Gtk::Menu_Helpers::MenuList&, int, const string&)::<lambda()> >::operator()(void) const (this=0x5555658780c0) at ../../gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x0000555556721fbe in sigc::internal::slot_call0<Pianoroll::add_single_controller_item(Gtk::Menu_Helpers::MenuList&, int, const string&)::<lambda()>, void>::call_it(sigc::internal::slot_rep *) (rep=0x555565878090) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff3e1afa8 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /opt/Ardour-9.7.90-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff3ce77d2 in g_closure_invoke () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#11 0x00007ffff3cf924a in ?? () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#12 0x00007ffff3d034ce in g_signal_emit_valist () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#13 0x00007ffff3d03b22 in g_signal_emit () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#14 0x00007ffff4288949 in IA__gtk_check_menu_item_toggled (check_menu_item=0x5555658ff280) at ../libs/tk/ytk/gtkcheckmenuitem.c:299
#15 0x00007ffff4288d6e in gtk_check_menu_item_activate (menu_item=0x5555658ff280) at ../libs/tk/ytk/gtkcheckmenuitem.c:419
#16 0x00007ffff499cdd6 in Gtk::MenuItem_Class::activate_callback (self=0x5555658ff280) at ../libs/tk/ytkmm/menuitem.cc:295
#17 0x00007ffff3ce77d2 in g_closure_invoke () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#18 0x00007ffff3cf9a39 in ?? () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#19 0x00007ffff3d034ce in g_signal_emit_valist () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#20 0x00007ffff3d03b22 in g_signal_emit () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#21 0x00007ffff44c639b in IA__gtk_widget_activate (widget=0x5555658ff280) at ../libs/tk/ytk/gtkwidget.c:5089
#22 0x00007ffff4368b64 in IA__gtk_menu_shell_activate_item (menu_shell=0x55556571ca40, menu_item=0x5555658ff280, force_deactivate=1) at ../libs/tk/ytk/gtkmenushell.c:1278
#23 0x00007ffff4367765 in gtk_menu_shell_button_release (widget=0x55556571ca40, event=0x55555a0f8da0) at ../libs/tk/ytk/gtkmenushell.c:703
#24 0x00007ffff435a969 in gtk_menu_button_release (widget=0x55556571ca40, event=0x55555a0f8da0) at ../libs/tk/ytk/gtkmenu.c:3019
#25 0x00007ffff4a216c9 in Gtk::Widget_Class::button_release_event_callback (self=0x55556571ca40, p0=0x55555a0f8da0) at ../libs/tk/ytkmm/widget.cc:4345
#26 0x00007ffff434e90a in _gtk_marshal_BOOLEAN__BOXED (closure=0x555557fd8750, return_value=0x7fffffffbfa0, n_param_values=2, param_values=0x7fffffffc050, invocation_hint=0x7fffffffbff0, marshal_data=0x7ffff4a215de <Gtk::Widget_Class::button_release_event_callback(_GtkWidget*, _GdkEventButton*)>) at ../libs/tk/ytk/gtkmarshalers.c:84
#27 0x00007ffff3ce77d2 in g_closure_invoke () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#28 0x00007ffff3cf8e29 in ?? () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#29 0x00007ffff3d02bb5 in g_signal_emit_valist () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#30 0x00007ffff3d03b22 in g_signal_emit () from /opt/Ardour-9.7.90-dbg/lib/libgobject-2.0.so.0
#31 0x00007ffff44c627d in gtk_widget_event_internal (widget=0x55556571ca40, event=0x55555a0f8da0) at ../libs/tk/ytk/gtkwidget.c:5058
#32 0x00007ffff44c5d7f in IA__gtk_widget_event (widget=0x55556571ca40, event=0x55555a0f8da0) at ../libs/tk/ytk/gtkwidget.c:4846
#33 0x00007ffff434c971 in IA__gtk_propagate_event (widget=0x55556571ca40, event=0x55555a0f8da0) at ../libs/tk/ytk/gtkmain.c:2465
#34 0x00007ffff434b3ff in IA__gtk_main_do_event (event=0x55555a0f8da0) at ../libs/tk/ytk/gtkmain.c:1654
#35 0x00007ffff417a198 in gdk_event_dispatch (source=0x555557f69680, callback=0x0, user_data=0x0) at ../libs/tk/ydk/x11/gdkevents-x11.c:2541
#36 0x00007ffff3ec9a73 in g_main_context_dispatch () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#37 0x00007ffff3ec9cf8 in ?? () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#38 0x00007ffff3eca023 in g_main_loop_run () from /opt/Ardour-9.7.90-dbg/lib/libglib-2.0.so.0
#39 0x00007ffff434a994 in IA__gtk_main () at ../libs/tk/ytk/gtkmain.c:1221
#40 0x00007ffff499743d in Gtk::Main::run_impl (this=0x555557f61cd0) at ../libs/tk/ytkmm/main.cc:537
#41 0x00007ffff4997245 in Gtk::Main::run () at ../libs/tk/ytkmm/main.cc:480
#42 0x00007ffff4f06252 in Gtkmm2ext::UI::run (this=0x555557f6a330, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:319
#43 0x00005555564faf90 in main (argc=1, argv=0x7fffffffcb88) at ../gtk2_ardour/main.cc:502