Thread 163 (Thread 0x7ffe437fe6c0 (LWP 15512) "AutoConnect"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555597ea464) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5555597ea464) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555597ea464, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555597ea410, cond=0x5555597ea438) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5555597ea438, mutex=0x5555597ea410) at ./nptl/pthread_cond_wait.c:627
#5  0x00007ffff7190303 in ARDOUR::Session::auto_connect_thread_run (this=0x5555597e8000) at ../libs/ardour/session.cc:8004
#6  0x00007ffff718fd52 in ARDOUR::Session::auto_connect_thread (arg=0x5555597e8000) at ../libs/ardour/session.cc:7936
#7  0x00007ffff4bbec48 in fake_thread_start (arg=0x55555845eae0) at ../libs/pbd/pthread_utils.cc:199
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 162 (Thread 0x7ffe43fff6c0 (LWP 15511) "SessionSignals"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=149750788, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555597ea3f0) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=149750788, abstime=0x0, clockid=0, expected=0, futex_word=0x5555597ea3f0) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555597ea3f0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5555597ea3a0, cond=0x5555597ea3c8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5555597ea3c8, mutex=0x5555597ea3a0) at ./nptl/pthread_cond_wait.c:627
#5  0x00007ffff721da29 in ARDOUR::Session::emit_thread_run (this=0x5555597e8000) at ../libs/ardour/session_process.cc:1234
#6  0x00007ffff721d9c8 in ARDOUR::Session::emit_thread (arg=0x5555597e8000) at ../libs/ardour/session_process.cc:1224
#7  0x00007ffff4bbec48 in fake_thread_start (arg=0x55555e1fea20) at ../libs/pbd/pthread_utils.cc:199
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 161 (Thread 0x7ffe5cff96c0 (LWP 15510) "Ctrl USB Hotplu"):
#0  0x00007ffff311b4fd in __GI___poll (fds=0x7ffe3c000b90, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff36c22e5 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libusb-1.0.so.0
#2  0x00007ffff36c3262 in libusb_handle_events_timeout_completed () from /opt/Ardour-9.0.rc2.38-dbg/lib/libusb-1.0.so.0
#3  0x00007ffff36c33ea in libusb_handle_events () from /opt/Ardour-9.0.rc2.38-dbg/lib/libusb-1.0.so.0
#4  0x00007ffff6c8ea10 in usb_hotplug_thread (user_data=0x5555577259f0) at ../libs/ardour/control_protocol_manager.cc:87
#5  0x00007ffff4bbec48 in fake_thread_start (arg=0x55557cbdc940) at ../libs/pbd/pthread_utils.cc:199
#6  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 160 (Thread 0x7ffe5d7fa6c0 (LWP 15509) "ArdourGUI"):
#0  0x00007ffff311b4fd in __GI___poll (fds=0x7ffe5d7f9ce0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff36c9d00 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libusb-1.0.so.0
#2  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#3  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 159 (Thread 0x7ffe5dffb6c0 (LWP 15508) "UI:Mackie"):
#0  0x00007ffff311b4fd in __GI___poll (fds=0x7ffe48000b90, nfds=3, timeout=5) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff42fdc8e in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff42fe023 in g_main_loop_run () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4b59cd3 in BaseUI::main_thread (this=0x55557ca9a768) at ../libs/pbd/base_ui.cc:101
#4  0x00007ffff4b5e673 in std::__invoke_impl<void, void (BaseUI::*&)(), BaseUI*&> (__f=@0x55557ca83b70: (void (BaseUI::*)(class BaseUI * const)) 0x7ffff4b59aca <BaseUI::main_thread()>, __t=@0x55557ca83b80: 0x55557ca9a768) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff4b5e497 in std::__invoke<void (BaseUI::*&)(), BaseUI*&> (__fn=@0x55557ca83b70: (void (BaseUI::*)(class BaseUI * const)) 0x7ffff4b59aca <BaseUI::main_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff4b5e2fc in std::_Bind<void (BaseUI::*(BaseUI*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55557ca83b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff4b5dfdc in std::_Bind<void (BaseUI::*(BaseUI*))()>::operator()<, void>() (this=0x55557ca83b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff4b5da54 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
#9  0x00007ffff4b5d1e4 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
#10 0x00007ffff4b5c7e9 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
#11 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557ca83d88) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557ca83d60) at ../libs/pbd/pthread_utils.cc:594
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 158 (Thread 0x7ffe5e7fc6c0 (LWP 15507) "UI:Generic MIDI"):
#0  0x00007ffff311b4fd in __GI___poll (fds=0x7ffe44038c30, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff42fdc8e in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff42fe023 in g_main_loop_run () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4b59cd3 in BaseUI::main_thread (this=0x55557c9c5388) at ../libs/pbd/base_ui.cc:101
#4  0x00007ffff4b5e673 in std::__invoke_impl<void, void (BaseUI::*&)(), BaseUI*&> (__f=@0x55557caa0930: (void (BaseUI::*)(class BaseUI * const)) 0x7ffff4b59aca <BaseUI::main_thread()>, __t=@0x55557caa0940: 0x55557c9c5388) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff4b5e497 in std::__invoke<void (BaseUI::*&)(), BaseUI*&> (__fn=@0x55557caa0930: (void (BaseUI::*)(class BaseUI * const)) 0x7ffff4b59aca <BaseUI::main_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff4b5e2fc in std::_Bind<void (BaseUI::*(BaseUI*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55557caa0930, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff4b5dfdc in std::_Bind<void (BaseUI::*(BaseUI*))()>::operator()<, void>() (this=0x55557caa0930) at /usr/include/c++/10/functional:499
#8  0x00007ffff4b5da54 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
#9  0x00007ffff4b5d1e4 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
#10 0x00007ffff4b5c7e9 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
#11 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557ca95388) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557ca95360) at ../libs/pbd/pthread_utils.cc:594
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 157 (Thread 0x7ffe5effd6c0 (LWP 15506) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x5555a9390c30) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x5555a9390c10) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555a938c260: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555a938c270: 0x5555a9390c10) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555a938c260: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555a938c260, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555a938c260) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x5555a9390bd8) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x5555a9390bb0) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 156 (Thread 0x7ffe5f7fe6c0 (LWP 15505) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x5555a90d28a0) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x5555a90d2880) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555a90d1d20: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555a90d1d30: 0x5555a90d2880) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555a90d1d20: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555a90d1d20, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555a90d1d20) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x5555a90d21b8) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x5555a90d2190) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 155 (Thread 0x7ffe5ffff6c0 (LWP 15504) "ArdourGUI"):
#0  0x00007ffff30ecadf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7ffe5fffec70, rem=0x7ffe5fffec80) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff30f9a27 in __GI___nanosleep (req=<optimized out>, rem=<optimized out>) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffe64c16b9e in ?? () from /usr/lib/lv2/lsp-plugins.lv2/lsp-plugins-lv2.so
#3  0x0000000000000000 in ?? ()

Thread 154 (Thread 0x7ffe65d316c0 (LWP 15503) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x5555a8e11ba0) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x5555a8e11b80) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555a8e10840: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555a8e10850: 0x5555a8e11b80) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555a8e10840: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555a8e10840, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555a8e10840) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x5555a8e1a9e8) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x5555a8e1a9c0) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 153 (Thread 0x7ffe6cbff6c0 (LWP 15502) "ArdourGUI"):
#0  0x00007fffbc33a400 in ?? () from /home/martin/.lv2/Ratatouille.lv2/Ratatouille.so
#1  0x00007fffbc33a6ff in ?? () from /home/martin/.lv2/Ratatouille.lv2/Ratatouille.so
#2  0x00007fffbc37a1c4 in ?? () from /home/martin/.lv2/Ratatouille.lv2/Ratatouille.so
#3  0x00007fffbc334107 in ?? () from /home/martin/.lv2/Ratatouille.lv2/Ratatouille.so
#4  0x00007fffbc3355a0 in ?? () from /home/martin/.lv2/Ratatouille.lv2/Ratatouille.so
#5  0x00007fffbc365589 in ?? () from /home/martin/.lv2/Ratatouille.lv2/Ratatouille.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x5555a7918aa0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 152 (Thread 0x7ffe78bf96c0 (LWP 15501) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x5555a79198a0) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x5555a7919880) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555a7919ef0: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555a7919f00: 0x5555a7919880) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555a7919ef0: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555a7919ef0, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555a7919ef0) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x5555a7918d68) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x5555a7918d40) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 151 (Thread 0x7ffe793fa6c0 (LWP 15500) "ArdourGUI"):
#0  0x00007ffff30ecadf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7ffe793f9be0, rem=0x0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff30f9a27 in __GI___nanosleep (req=<optimized out>, rem=<optimized out>) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffe6d0b4ef9 in juce::Thread::sleep(int) () from /usr/lib/lv2/Surge XT.lv2/libSurge XT.so
#3  0x00007ffe6cdd900a in juce::MessageThread::run() () from /usr/lib/lv2/Surge XT.lv2/libSurge XT.so
#4  0x00007ffe6d0b7b44 in juce::Thread::threadEntryPoint() () from /usr/lib/lv2/Surge XT.lv2/libSurge XT.so
#5  0x00007ffe6d0b7cd9 in juce::Thread::createNativeThread(juce::Thread::Priority)::{lambda(void*)#1}::_FUN(void*) () from /usr/lib/lv2/Surge XT.lv2/libSurge XT.so
#6  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 150 (Thread 0x7ffe79bfb6c0 (LWP 15499) "ZynMiddleWare"):
#0  0x00007ffff30ecadf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=req@entry=0x7ffe79bfacc0, rem=rem@entry=0x0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff30f9a27 in __GI___nanosleep (req=req@entry=0x7ffe79bfacc0, rem=rem@entry=0x0) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffff312975c in usleep (useconds=<optimized out>) at ../sysdeps/posix/usleep.c:31
#3  0x00007fff1423ed56 in ?? () from /usr/lib/lv2/ZynAddSubFX.lv2/ZynAddSubFX.so
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 148 (Thread 0x7ffe7b7fe6c0 (LWP 15497) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x5555a43abb70) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x5555a43abb50) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555a43a87d0: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555a43a87e0: 0x5555a43abb50) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555a43a87d0: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555a43a87d0, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555a43a87d0) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x5555a43abf58) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x5555a43abf30) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 147 (Thread 0x7ffe7bfff6c0 (LWP 15495) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555a2e5ffc8) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x5555a2e5ffc8) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555a2e5ffc8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x5555a2e5ffc8, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x5555a2e5ffc8, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff4024d3ea in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x5555a2e7bc10) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 146 (Thread 0x7ffe80ff96c0 (LWP 15494) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555a2e5ffa0) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x5555a2e5ffa0) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555a2e5ffa0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x5555a2e5ffa0, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x5555a2e5ffa0, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff40255f52 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x5555a2e4fb30) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 145 (Thread 0x7ffe817fa6c0 (LWP 15493) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x5555a2daf6c0) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x5555a2daf6a0) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555a2e0f800: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555a2e0f810: 0x5555a2daf6a0) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555a2e0f800: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555a2e0f800, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555a2e0f800) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x555559724568) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x555559724540) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 144 (Thread 0x7ffe81ffb6c0 (LWP 15492) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555765a7e88) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x5555765a7e88) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555765a7e88, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x5555765a7e88, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x5555765a7e88, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff4024d3ea in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x555576db3c10) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 143 (Thread 0x7ffe827fc6c0 (LWP 15491) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555765a7e60) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x5555765a7e60) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555765a7e60, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x5555765a7e60, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x5555765a7e60, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff40255f52 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x555575992130) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 142 (Thread 0x7ffe82ffd6c0 (LWP 15490) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555575991d10) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x555575991cf0) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x555575991e20: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x555575991e30: 0x555575991cf0) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x555575991e20: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x555575991e20, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x555575991e20) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55556a2c6d38) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55556a2c6d10) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 141 (Thread 0x7ffe837fe6c0 (LWP 15489) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555afb54b8) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55555afb54b8) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555afb54b8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55555afb54b8, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55555afb54b8, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff4024d3ea in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55555fc2c6d0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 140 (Thread 0x7ffe83fff6c0 (LWP 15488) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555afb5490) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55555afb5490) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555afb5490, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55555afb5490, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55555afb5490, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff40255f52 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55555c3489b0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 139 (Thread 0x7ffe90ff96c0 (LWP 15487) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55555c348590) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x55555c348570) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x55555c3486a0: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x55555c3486b0: 0x55555c348570) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x55555c3486a0: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55555c3486a0, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x55555c3486a0) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55555ce383d8) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55555ce383b0) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 138 (Thread 0x7ffe917fa6c0 (LWP 15486) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555dd573b8) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55555dd573b8) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555dd573b8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55555dd573b8, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55555dd573b8, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff4024d3ea in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55555fc44610) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 137 (Thread 0x7ffe91ffb6c0 (LWP 15485) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55555dd57390) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55555dd57390) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55555dd57390, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55555dd57390, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55555dd57390, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff40255f52 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x5555586c4d10) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 136 (Thread 0x7ffe927fc6c0 (LWP 15484) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x5555586c48f0) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x5555586c48d0) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555586c4a00: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555586c4a10: 0x5555586c48d0) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555586c4a00: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555586c4a00, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555586c4a00) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557e29c118) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557e29c0f0) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 135 (Thread 0x7ffe92ffd6c0 (LWP 15483) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555809fac48) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x5555809fac48) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555809fac48, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x5555809fac48, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x5555809fac48, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff4024d3ea in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x555580a16890) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 134 (Thread 0x7ffe937fe6c0 (LWP 15482) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5555809fac20) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x5555809fac20) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5555809fac20, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x5555809fac20, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x5555809fac20, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff40255f52 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x5555809ea7b0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 133 (Thread 0x7ffe93fff6c0 (LWP 15481) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55558094a340) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x55558094a320) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555809aa480: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555809aa490: 0x55558094a320) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555809aa480: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555809aa480, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555809aa480) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55558033a6b8) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55558033a690) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 132 (Thread 0x7ffe98ff16c0 (LWP 15480) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55558042e898) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55558042e898) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55558042e898, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55558042e898, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55558042e898, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff4024d3ea in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x555580448970) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 131 (Thread 0x7ffe997f26c0 (LWP 15479) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55558042e870) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55558042e870) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55558042e870, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55558042e870, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55558042e870, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff40255f52 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55558041e400) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 130 (Thread 0x7ffe99ff36c0 (LWP 15478) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55558037df90) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x55558037df70) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x5555803de0d0: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x5555803de0e0: 0x55558037df70) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x5555803de0d0: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x5555803de0d0, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x5555803de0d0) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557e9411d8) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557e9411b0) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 129 (Thread 0x7ffe9a7f46c0 (LWP 15477) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb2a130) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 128 (Thread 0x7ffe9aff56c0 (LWP 15476) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb29f50) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 127 (Thread 0x7ffe9b7f66c0 (LWP 15475) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb29d70) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 126 (Thread 0x7ffe9bff76c0 (LWP 15474) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb29b90) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 125 (Thread 0x7ffe9c7f86c0 (LWP 15473) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb299b0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 124 (Thread 0x7ffe9cff96c0 (LWP 15472) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb297d0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 123 (Thread 0x7ffe9d7fa6c0 (LWP 15471) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb295f0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 122 (Thread 0x7ffe9dffb6c0 (LWP 15470) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb29410) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 121 (Thread 0x7ffe9e7fc6c0 (LWP 15469) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb29230) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 120 (Thread 0x7ffe9effd6c0 (LWP 15468) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb29050) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 119 (Thread 0x7ffe9f7fe6c0 (LWP 15467) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb28e70) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 118 (Thread 0x7ffe9ffff6c0 (LWP 15466) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb28c90) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 117 (Thread 0x7ffea4ff96c0 (LWP 15465) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb28ab0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 116 (Thread 0x7ffea57fa6c0 (LWP 15464) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb288d0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 115 (Thread 0x7ffea5ffb6c0 (LWP 15463) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb286f0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 114 (Thread 0x7ffea67fc6c0 (LWP 15462) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb28510) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 113 (Thread 0x7ffea6ffd6c0 (LWP 15461) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb28330) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 112 (Thread 0x7ffea77fe6c0 (LWP 15460) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb28150) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 111 (Thread 0x7ffea7fff6c0 (LWP 15459) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb27b50) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 110 (Thread 0x7ffeb0ff96c0 (LWP 15458) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb27950) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 109 (Thread 0x7ffeb17fa6c0 (LWP 15457) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=32766, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=32766, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb27b70) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 108 (Thread 0x7ffeb1ffb6c0 (LWP 15456) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=858008608, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=858008608, abstime=0x0, clockid=0, expected=0, futex_word=0x55557e9b0628) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557e9b0628, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007ffff309b7ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55557e9b05d8, cond=0x55557e9b0600) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55557e9b0600, mutex=0x55557e9b05d8) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fff40258d2b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb27970) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#7  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 107 (Thread 0x7ffeb27fc6c0 (LWP 15455) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557eb0ba88) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55557eb0ba88) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557eb0ba88, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55557eb0ba88, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55557eb0ba88, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff4024d3ea in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557eb27710) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 106 (Thread 0x7ffeb2ffd6c0 (LWP 15454) "ArdourGUI"):
#0  0x00007ffff3098d71 in __futex_abstimed_wait_common64 (private=<optimized out>, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55557eb0ba60) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=<optimized out>, abstime=0x0, clockid=0, expected=0, futex_word=0x55557eb0ba60) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55557eb0ba60, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=<optimized out>) at ./nptl/futex-internal.c:139
#3  0x00007ffff30a4f1f in do_futex_wait (sem=sem@entry=0x55557eb0ba60, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:111
#4  0x00007ffff30a4fb8 in __new_sem_wait_slow64 (sem=0x55557eb0ba60, abstime=0x0, clockid=0) at ./nptl/sem_waitcommon.c:183
#5  0x00007fff402b5b84 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#6  0x00007fff40255f52 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#7  0x00007ffff34ecdb4 in std::execute_native_thread_routine (__p=0x55557e9af3a0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 105 (Thread 0x7ffeb37fe6c0 (LWP 15453) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55557e9ae370) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x55557e9ae350) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x55557e9ad070: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x55557e9ad080: 0x55557e9ae350) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x55557e9ad070: (void (ARDOUR::Worker::*)(class ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55557e9ad070, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x55557e9ad070) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557e9b0b98) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557e9b0b70) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 104 (Thread 0x7fffbd7fa6c0 (LWP 15452) "LV2Worker"):
#0  0x00007ffff3aa3d44 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libfftw3f.so.3
#1  0x00007ffff3a4fc56 in fftwf_plan_awake () from /opt/Ardour-9.0.rc2.38-dbg/lib/libfftw3f.so.3
#2  0x00007ffff3a4fc56 in fftwf_plan_awake () from /opt/Ardour-9.0.rc2.38-dbg/lib/libfftw3f.so.3
#3  0x00007ffff3b37852 in fftwf_destroy_plan () from /opt/Ardour-9.0.rc2.38-dbg/lib/libfftw3f.so.3
#4  0x00007fffd814cdbf in Convlevel::cleanup (this=this@entry=0x55557e6e7460) at /build/zita-convolver-KNKkys/zita-convolver-4.0.3/source/zita-convolver.cc:670
#5  0x00007fffd814ce35 in Convlevel::~Convlevel (this=<optimized out>, this=<optimized out>) at /build/zita-convolver-KNKkys/zita-convolver-4.0.3/source/zita-convolver.cc:433
#6  0x00007fffd814cf25 in Convproc::cleanup (this=0x55557e6e8540) at /build/zita-convolver-KNKkys/zita-convolver-4.0.3/source/zita-convolver.cc:369
#7  0x00007fffd9383fc0 in ?? () from /usr/lib/lv2/gx_cabinet.lv2/gx_cabinet.so
#8  0x00007fffd938376d in ?? () from /usr/lib/lv2/gx_cabinet.lv2/gx_cabinet.so
#9  0x00007ffff7392b70 in ARDOUR::LV2Plugin::work (this=0x55557e6b5830, worker=..., size=1, data=0x7fffb0001830) at ../libs/ardour/lv2_plugin.cc:2305
#10 0x00007ffff7384775 in ARDOUR::Worker::run (this=0x55557e6e7300) at ../libs/ardour/worker.cc:183
#11 0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x55557e6e3db0: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x55557e6e3dc0: 0x55557e6e7300) at /usr/include/c++/10/bits/invoke.h:73
#12 0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x55557e6e3db0: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#13 0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55557e6e3db0, __args=...) at /usr/include/c++/10/functional:416
#14 0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x55557e6e3db0) at /usr/include/c++/10/functional:499
#15 0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#16 0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#17 0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#18 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557e6e78f8) at /usr/include/c++/10/bits/std_function.h:622
#19 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557e6e78d0) at ../libs/pbd/pthread_utils.cc:594
#20 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#21 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 103 (Thread 0x7fffbe7fc6c0 (LWP 15451) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55557e4ad010) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x55557e4acff0) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x55557e50d150: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x55557e50d160: 0x55557e4acff0) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x55557e50d150: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55557e50d150, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x55557e50d150) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557e50d288) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557e50d260) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 102 (Thread 0x7ffeb3fff6c0 (LWP 15448) "LV2Worker"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55557e09fd90) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff7384556 in ARDOUR::Worker::run (this=0x55557e09fd70) at ../libs/ardour/worker.cc:142
#3  0x00007ffff7385984 in std::__invoke_impl<void, void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__f=@0x55557e09fc60: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>, __t=@0x55557e09fc70: 0x55557e09fd70) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff73858e1 in std::__invoke<void (ARDOUR::Worker::*&)(), ARDOUR::Worker*&> (__fn=@0x55557e09fc60: (void (ARDOUR::Worker::*)(ARDOUR::Worker * const)) 0x7ffff738452a <ARDOUR::Worker::run()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff738586a in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55557e09fc60, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff73857f6 in std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>::operator()<, void>() (this=0x55557e09fc60) at /usr/include/c++/10/functional:499
#7  0x00007ffff73856fa in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#8  0x00007ffff7385588 in std::__invoke_r<void, std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&>(std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#9  0x00007ffff73853cd in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Worker::*(ARDOUR::Worker*))()> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557e09e068) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557e09e040) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 101 (Thread 0x7ffebcff96c0 (LWP 15447) "midiUI"):
#0  0x00007ffff311b4fd in __GI___poll (fds=0x7ffeac041940, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff42fdc8e in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff42fe023 in g_main_loop_run () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4b59cd3 in BaseUI::main_thread (this=0x55555a61acc0) at ../libs/pbd/base_ui.cc:101
#4  0x00007ffff4b5e673 in std::__invoke_impl<void, void (BaseUI::*&)(), BaseUI*&> (__f=@0x55557d833cc0: (void (BaseUI::*)(BaseUI * const)) 0x7ffff4b59aca <BaseUI::main_thread()>, __t=@0x55557d833cd0: 0x55555a61acc0) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff4b5e497 in std::__invoke<void (BaseUI::*&)(), BaseUI*&> (__fn=@0x55557d833cc0: (void (BaseUI::*)(BaseUI * const)) 0x7ffff4b59aca <BaseUI::main_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff4b5e2fc in std::_Bind<void (BaseUI::*(BaseUI*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x55557d833cc0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff4b5dfdc in std::_Bind<void (BaseUI::*(BaseUI*))()>::operator()<, void>() (this=0x55557d833cc0) at /usr/include/c++/10/functional:499
#8  0x00007ffff4b5da54 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
#9  0x00007ffff4b5d1e4 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
#10 0x00007ffff4b5c7e9 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
#11 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x55557d8a4a28) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x55557d8a4a00) at ../libs/pbd/pthread_utils.cc:594
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 100 (Thread 0x7fffd9459900 (LWP 15446) "butler"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc944) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f19c in ARDOUR::IOTaskList::process (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:120
#3  0x00007ffff728f4db in ARDOUR::Session::non_realtime_locate (this=0x5555597e8000) at ../libs/ardour/session_transport.cc:1339
#4  0x00007ffff728e82a in ARDOUR::Session::butler_transport_work (this=0x5555597e8000, have_process_lock=false) at ../libs/ardour/session_transport.cc:1245
#5  0x00007ffff6c7882b in ARDOUR::Butler::thread_work (this=0x55555dee72f0) at ../libs/ardour/butler.cc:243
#6  0x00007ffff6c77c19 in ARDOUR::Butler::_thread_work (arg=0x55555dee72f0) at ../libs/ardour/butler.cc:178
#7  0x00007ffff4bbec48 in fake_thread_start (arg=0x55557d864b60) at ../libs/pbd/pthread_utils.cc:199
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 99 (Thread 0x7ffeca7fc6c0 (LWP 15444) "IO-32788-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 98 (Thread 0x7ffed0ff96c0 (LWP 15443) "IO-32787-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 97 (Thread 0x7ffed2ffd6c0 (LWP 15442) "IO-32786-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 96 (Thread 0x7ffee17fa6c0 (LWP 15441) "IO-32785-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 95 (Thread 0x7ffee37fe6c0 (LWP 15440) "IO-32784-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 94 (Thread 0x7ffeea7fc6c0 (LWP 15439) "IO-32783-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 93 (Thread 0x7ffee3fff6c0 (LWP 15438) "IO-32782-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 92 (Thread 0x7ffef67fc6c0 (LWP 15437) "IO-32781-0x7ffe"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 91 (Thread 0x7fff00ff96c0 (LWP 15436) "IO-32780-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 90 (Thread 0x7fff02ffd6c0 (LWP 15435) "IO-32779-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 89 (Thread 0x7fff0d7fa6c0 (LWP 15434) "IO-32778-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 88 (Thread 0x7fff0f7fe6c0 (LWP 15433) "IO-32777-0x7fff"):
#0  0x0000555555eb1274 in std::_List_const_iterator<Evoral::ControlEvent*>::operator++ (this=0x7fff0f7fbca8) at /usr/include/c++/10/bits/stl_list.h:305
#1  0x00007ffff6c4eb9c in std::__distance<Evoral::ControlEvent*> (__first=0x55557df307b0, __last=0x21) at /usr/include/c++/10/bits/stl_list.h:2117
#2  0x00007ffff6c4db1e in std::distance<std::_List_const_iterator<Evoral::ControlEvent*> > (__first=0x55557df30670, __last=0x21) at /usr/include/c++/10/bits/stl_iterator_base_funcs.h:141
#3  0x00007ffff55e5d03 in std::__equal_range<std::_List_const_iterator<Evoral::ControlEvent*>, Evoral::ControlEvent*, __gnu_cxx::__ops::_Iter_comp_val<bool (*)(Evoral::ControlEvent const*, Evoral::ControlEvent const*)>, __gnu_cxx::__ops::_Val_comp_iter<bool (*)(Evoral::ControlEvent const*, Evoral::ControlEvent const*)> > (__first=0x55557df30670, __last=0x21, __val=@0x7fff0f7fbe68: 0x7fff0f7fbe00, __comp_it_val=..., __comp_val_it=...) at /usr/include/c++/10/bits/stl_algo.h:2143
#4  0x00007ffff55e5907 in std::equal_range<std::_List_const_iterator<Evoral::ControlEvent*>, Evoral::ControlEvent*, bool (*)(Evoral::ControlEvent const*, Evoral::ControlEvent const*)> (__first=0x55557df30670, __last=0x21, __val=@0x7fff0f7fbe68: 0x7fff0f7fbe00, __comp=0x7ffff6c48ab2 <Evoral::ControlList::time_comparator(Evoral::ControlEvent const*, Evoral::ControlEvent const*)>) at /usr/include/c++/10/bits/stl_algo.h:2242
#5  0x00007ffff55e506f in Evoral::Curve::multipoint_eval (this=0x55557df2e2a0, x=...) at ../libs/evoral/Curve.cc:401
#6  0x00007ffff55e4e87 in Evoral::Curve::_get_vector (this=0x55557df2e2a0, x0=..., x1=..., vec=0x7ffefd009520, veclen=64) at ../libs/evoral/Curve.cc:383
#7  0x00007ffff55e4261 in Evoral::Curve::get_vector (this=0x55557df2e2a0, x0=..., x1=..., vec=0x7ffefd009520, veclen=64) at ../libs/evoral/Curve.cc:199
#8  0x00007ffff6c110a8 in ARDOUR::AudioRegion::read_at (this=0x55557df2c720, buf=0x7ffefc009500, mixdown_buffer=0x7ffefc809510, gain_buffer=0x7ffefd009520, pos=0, cnt=65, chan_n=0) at ../libs/ardour/audioregion.cc:988
#9  0x00007ffff6bcada3 in ARDOUR::AudioPlaylist::read (this=0x55557df2bf80, buf=0x7ffefc009500, mixdown_buffer=0x7ffefc809510, gain_buffer=0x7ffefd009520, start=..., cnt=..., chan_n=0) at ../libs/ardour/audio_playlist.cc:293
#10 0x00007ffff6cb9aff in ARDOUR::DiskReader::audio_read (this=0x55557e2fd5c0, sum_buffer=0x7ffefc009500, mixdown_buffer=0x7ffefc809510, gain_buffer=0x7ffefd009520, start=@0x7fff0f7fd3f8: 0, cnt=1040384, rci=0x55557e3150c0, channel=0, reversed=false) at ../libs/ardour/disk_reader.cc:1072
#11 0x00007ffff6cbad32 in ARDOUR::DiskReader::refill_audio (this=0x55557e2fd5c0, sum_buffer=0x7ffefc009500, mixdown_buffer=0x7ffefc809510, gain_buffer=0x7ffefd009520, fill_level=0, reversed=false) at ../libs/ardour/disk_reader.cc:1333
#12 0x00007ffff6cba05d in ARDOUR::DiskReader::do_refill_with_alloc (this=0x55557e2fd5c0, partial_fill=false, reversed=false) at ../libs/ardour/disk_reader.cc:1146
#13 0x00007ffff6cb9408 in ARDOUR::DiskReader::seek (this=0x55557e2fd5c0, sample=0, complete_refill=true) at ../libs/ardour/disk_reader.cc:914
#14 0x00007ffff6cad400 in ARDOUR::DiskIOProcessor::non_realtime_locate (this=0x55557e2fd5c0, location=0) at ../libs/ardour/disk_io.cc:212
#15 0x00007ffff71151b0 in ARDOUR::Route::non_realtime_locate (this=0x55557e2af760, pos=0) at ../libs/ardour/route.cc:6012
#16 0x00007ffff7304379 in ARDOUR::Track::non_realtime_locate (this=0x55557e2af760, p=0) at ../libs/ardour/track.cc:659
#17 0x00007ffff728f065 in operator() (__closure=0x7ffefc006fb0) at ../libs/ardour/session_transport.cc:1337
#18 0x00007ffff7294006 in std::__invoke_impl<void, ARDOUR::Session::non_realtime_locate()::<lambda()>&>(std::__invoke_other, struct {...} &) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#19 0x00007ffff7293c48 in std::__invoke_r<void, ARDOUR::Session::non_realtime_locate()::<lambda()>&>(struct {...} &) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#20 0x00007ffff7293850 in std::_Function_handler<void(), ARDOUR::Session::non_realtime_locate()::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#21 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff0f7fdbc0) at /usr/include/c++/10/bits/std_function.h:622
#22 0x00007ffff6e2f688 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:183
#23 0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#24 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#25 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 87 (Thread 0x7fff15ffb6c0 (LWP 15432) "IO-32776-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 86 (Thread 0x7fff17fff6c0 (LWP 15431) "IO-32775-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 85 (Thread 0x7fff227fc6c0 (LWP 15430) "IO-32774-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 84 (Thread 0x7fff2cff96c0 (LWP 15429) "IO-32773-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 83 (Thread 0x7fff2effd6c0 (LWP 15428) "IO-32772-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 82 (Thread 0x7fff397fa6c0 (LWP 15427) "IO-32771-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 81 (Thread 0x7fff3b7fe6c0 (LWP 15426) "IO-32770-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 80 (Thread 0x7fff41ffb6c0 (LWP 15425) "IO-32769-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 79 (Thread 0x7fff43fff6c0 (LWP 15424) "IO-32768-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 78 (Thread 0x7fff90ff96c0 (LWP 15423) "IO-32767-0x7fff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x555557adc93c) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6e2f5d7 in ARDOUR::IOTaskList::io_thread (this=0x555557adc900) at ../libs/ardour/io_tasklist.cc:166
#3  0x00007ffff6e2f504 in ARDOUR::IOTaskList::_worker_thread (me=0x555557adc900) at ../libs/ardour/io_tasklist.cc:154
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 77 (Thread 0x7fff917fa6c0 (LWP 15422) "RT-22-0x7fff917"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff48000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff48000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff48000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff48000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff48000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff917f9cc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597e2bd0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 76 (Thread 0x7fff91ffb6c0 (LWP 15421) "RT-21-0x7fff91f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff44000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff44000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff44000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff44000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff44000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff91ffacc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597df0a0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 75 (Thread 0x7fff927fc6c0 (LWP 15420) "RT-20-0x7fff927"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff50000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff50000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff50000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff50000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff50000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff927fbcc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597df000) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 74 (Thread 0x7fff92ffd6c0 (LWP 15419) "RT-19-0x7fff92f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff4c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff4c000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff4c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff4c000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff4c000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff92ffccc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597dedb0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 73 (Thread 0x7fff937fe6c0 (LWP 15418) "RT-18-0x7fff937"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff58000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff58000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff58000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff58000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff58000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff937fdcc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555559378270) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 72 (Thread 0x7fff93fff6c0 (LWP 15417) "RT-17-0x7fff93f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff54000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff54000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff54000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff54000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff54000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff93ffecc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597d3db0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 71 (Thread 0x7fff98ff96c0 (LWP 15416) "RT-16-0x7fff98f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff60000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff60000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff60000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff60000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff60000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff98ff8cc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597d4dc0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 70 (Thread 0x7fff997fa6c0 (LWP 15415) "RT-15-0x7fff997"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff5c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff5c000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff5c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff5c000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff5c000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff997f9cc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597de1c0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 69 (Thread 0x7fff99ffb6c0 (LWP 15414) "RT-14-0x7fff99f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff68000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff68000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff68000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff68000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff68000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff99ffacc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597e7610) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 68 (Thread 0x7fff9a7fc6c0 (LWP 15413) "RT-13-0x7fff9a7"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff64000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff64000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff64000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff64000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff64000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff9a7fbcc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597e4220) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 67 (Thread 0x7fff9affd6c0 (LWP 15412) "RT-12-0x7fff9af"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff70000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff70000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff70000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff70000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff70000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff9affccc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597d8e80) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 66 (Thread 0x7fff9b7fe6c0 (LWP 15411) "RT-11-0x7fff9b7"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff6c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff6c000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff6c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff6c000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff6c000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff9b7fdcc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597d7620) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 65 (Thread 0x7fff9bfff6c0 (LWP 15410) "RT-10-0x7fff9bf"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff78000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff78000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff78000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff78000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff78000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fff9bffecc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597d9a40) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 64 (Thread 0x7fffa0ff96c0 (LWP 15409) "RT-9-0x7fffa0ff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff74000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff74000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff74000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff74000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff74000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffa0ff8cc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597dca50) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 63 (Thread 0x7fffa17fa6c0 (LWP 15408) "RT-8-0x7fffa17f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffd0) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbe5ff in ARDOUR::Graph::reached_terminal_node (this=0x55556068fe90) at ../libs/ardour/graph.cc:267
#3  0x00007ffff6dca937 in ARDOUR::GraphNode::finish (this=0x55557dfe1208, chain=0x7fffa801c9a0) at ../libs/ardour/graphnode.cc:107
#4  0x00007ffff6dca81c in ARDOUR::GraphNode::run (this=0x55557dfe1208, chain=0x7fffa801c9a0) at ../libs/ardour/graphnode.cc:74
#5  0x00007ffff6dbed76 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:344
#6  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#7  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff80000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff80000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#8  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff80000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#9  0x00007ffff6dc946e 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
#10 0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff80000b70) at /usr/include/c++/10/functional:499
#11 0x00007ffff6dc742d 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 0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffa17f9cc0) at /usr/include/c++/10/bits/std_function.h:622
#15 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597dda50) at ../libs/backends/jack/jack_audiobackend.cc:895
#16 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#17 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 62 (Thread 0x7fffa1ffb6c0 (LWP 15407) "RT-7-0x7fffa1ff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff7c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff7c000b80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff7c000b70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff7c000b70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff7c000b70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffa1ffacc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597dd9d0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 61 (Thread 0x7fffa27fc6c0 (LWP 15406) "RT-6-0x7fffa27f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff88000f90: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff88000fa0: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff88000f90: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff88000f90, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff88000f90) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffa27fbcc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555597d2370) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 60 (Thread 0x7fffa37fe6c0 (LWP 15405) "RT-5-0x7fffa37f"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fffa40026a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fffa40026b0: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fffa40026a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fffa40026a0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fffa40026a0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffa37fdcc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555559998030) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 59 (Thread 0x7fffa3fff6c0 (LWP 15404) "RT-4-0x7fffa3ff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff9c0022b0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff9c0022c0: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff9c0022b0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff9c0022b0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff9c0022b0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffa3ffecc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555604f3d50) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 58 (Thread 0x7fffbcff96c0 (LWP 15403) "RT-3-0x7fffbcff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff840021a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff840021b0: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff840021a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff840021a0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff840021a0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffbcff8cc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555559998460) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 57 (Thread 0x7fffbeffd6c0 (LWP 15402) "RT-2-0x7fffbeff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff94002180: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff94002190: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff94002180: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff94002180, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff94002180) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffbeffccc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555557ac4670) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 56 (Thread 0x7fffbdffb6c0 (LWP 15401) "RT-1-0x7fffbdff"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf159 in ARDOUR::Graph::helper_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:372
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fff8c0021a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>, __t=@0x7fff8c0021b0: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fff8c0021a0: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbef6e <ARDOUR::Graph::helper_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fff8c0021a0, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fff8c0021a0) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffbdffacc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555593781f0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 55 (Thread 0x7fffbf7fe6c0 (LWP 15400) "RT-main-0x7fffb"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff4bc778a in PBD::Semaphore::wait (this=0x55556068ffc4) at ../libs/pbd/semutils.cc:120
#2  0x00007ffff6dbebc6 in ARDOUR::Graph::run_one (this=0x55556068fe90) at ../libs/ardour/graph.cc:320
#3  0x00007ffff6dbf5c5 in ARDOUR::Graph::main_thread (this=0x55556068fe90) at ../libs/ardour/graph.cc:425
#4  0x00007ffff6dc9fdf in std::__invoke_impl<void, void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__f=@0x7fffb8002a70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbf210 <ARDOUR::Graph::main_thread()>, __t=@0x7fffb8002a80: 0x55556068fe90) at /usr/include/c++/10/bits/invoke.h:73
#5  0x00007ffff6dc9cbb in std::__invoke<void (ARDOUR::Graph::*&)(), ARDOUR::Graph*&> (__fn=@0x7fffb8002a70: (void (ARDOUR::Graph::*)(ARDOUR::Graph * const)) 0x7ffff6dbf210 <ARDOUR::Graph::main_thread()>) at /usr/include/c++/10/bits/invoke.h:95
#6  0x00007ffff6dc946e in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x7fffb8002a70, __args=...) at /usr/include/c++/10/functional:416
#7  0x00007ffff6dc87fa in std::_Bind<void (ARDOUR::Graph::*(ARDOUR::Graph*))()>::operator()<, void>() (this=0x7fffb8002a70) at /usr/include/c++/10/functional:499
#8  0x00007ffff6dc742d 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  0x00007ffff6dc57af 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 0x00007ffff6dc474c 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 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffbf7fdcc0) at /usr/include/c++/10/bits/std_function.h:622
#12 0x00007fffe0218812 in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555559dcf6d0) at ../libs/backends/jack/jack_audiobackend.cc:895
#13 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 53 (Thread 0x7fffa2ffd6c0 (LWP 15398) "pool"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff434da0a in g_cond_wait_until () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff42cb50e in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff42cbbfb in g_async_queue_timeout_pop () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff432b509 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#5  0x00007ffff432ac35 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#6  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 41 (Thread 0x7fffd92746c0 (LWP 15343) "AudioEngine 1"):
#0  0x00007ffff312a072 in epoll_wait (epfd=17, events=0x7fffd9273420, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fffe10a3138 in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#2  0x00007fffe10964cc in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#3  0x00007fffdbf604cc in pw_data_loop_wait () from /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#4  0x00007fffe18b0eb0 in jack_cycle_wait () from /usr/lib/x86_64-linux-gnu/pipewire-0.3/jack/libjack.so.0
#5  0x00007fffe023d6dd in WJACK_cycle_wait (client=0x555557afec00) at ../libs/backends/jack/weak_libjack.def:95
#6  0x00007fffe02188d5 in ARDOUR::JACKAudioBackend::process_thread (this=0x555557976bd0) at ../libs/backends/jack/jack_audiobackend.cc:924
#7  0x00007fffe0218860 in ARDOUR::JACKAudioBackend::_process_thread (arg=0x555557976bd0) at ../libs/backends/jack/jack_audiobackend.cc:903
#8  0x00007fffe109664d in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#9  0x00007fffdbf657b6 in ?? () from /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#10 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#11 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 40 (Thread 0x7fffbffff6c0 (LWP 15342) "pw-ardour"):
#0  std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_local_data (this=<optimized out>) at /build/gcc-14-ig5ci0/gcc-14-14.2.0/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:243
#1  std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_is_local (this=0x7fffbfffc600) at /build/gcc-14-ig5ci0/gcc-14-14.2.0/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:269
#2  std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_dispose (this=0x7fffbfffc600) at /build/gcc-14-ig5ci0/gcc-14-14.2.0/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:287
#3  std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string (this=0x7fffbfffc600, __in_chrg=<optimized out>) at /build/gcc-14-ig5ci0/gcc-14-14.2.0/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:809
#4  0x00007ffff6e0452e in ARDOUR::IO::connected_to (this=0x55555ecc7a20, other=std::shared_ptr<const ARDOUR::IO> (use count 3, weak count 1) = {...}) at ../libs/ardour/io.cc:1599
#5  0x00007ffff7117f34 in ARDOUR::IOVector::fed_by (this=0x7fffbfffc740, other=std::shared_ptr<const ARDOUR::IO> (use count 4, weak count 0) = {...}) at ../libs/ardour/ardour/io_vector.h:59
#6  0x00007ffff710959b in ARDOUR::Route::direct_feeds_according_to_reality (this=0x55555cb0d3b0, node=std::shared_ptr<ARDOUR::GraphNode> (use count 41, weak count 3) = {...}, via_send_only=0x7fffbfffcc7f) at ../libs/ardour/route.cc:3977
#7  0x00007ffff6dcf9d9 in ARDOUR::topological_sort (nodes=std::__cxx11::list = {...}, edges=...) at ../libs/ardour/graph_edges.cc:297
#8  0x00007ffff716ecbc in ARDOUR::Session::rechain_process_graph (this=0x5555597e8000, g=std::__cxx11::list = {...}) at ../libs/ardour/session.cc:2592
#9  0x00007ffff716e425 in ARDOUR::Session::resort_routes_using (this=0x5555597e8000, r=std::shared_ptr<std::__cxx11::list<std::shared_ptr<ARDOUR::Route>, std::allocator<std::shared_ptr<ARDOUR::Route> > >> (use count 3, weak count 0) = {...}) at ../libs/ardour/session.cc:2514
#10 0x00007ffff716dcd2 in ARDOUR::Session::resort_routes (this=0x5555597e8000) at ../libs/ardour/session.cc:2477
#11 0x00007ffff7184416 in ARDOUR::Session::graph_reordered (this=0x5555597e8000, called_from_backend=true) at ../libs/ardour/session.cc:5844
#12 0x00007ffff72802e5 in std::__invoke_impl<void, void (ARDOUR::Session::*&)(bool), ARDOUR::Session*&, bool&> (__f=@0x7fffa8014e70: (void (ARDOUR::Session::*)(class ARDOUR::Session * const, bool)) 0x7ffff71843ac <ARDOUR::Session::graph_reordered(bool)>, __t=@0x7fffa8014e88: 0x5555597e8000) at /usr/include/c++/10/bits/invoke.h:73
#13 0x00007ffff727d213 in std::__invoke<void (ARDOUR::Session::*&)(bool), ARDOUR::Session*&, bool&> (__fn=@0x7fffa8014e70: (void (ARDOUR::Session::*)(class ARDOUR::Session * const, bool)) 0x7ffff71843ac <ARDOUR::Session::graph_reordered(bool)>) at /usr/include/c++/10/bits/invoke.h:95
#14 0x00007ffff7278ce7 in std::_Bind<void (ARDOUR::Session::*(ARDOUR::Session*, bool))(bool)>::__call<void, , 0ul, 1ul>(std::tuple<>&&, std::_Index_tuple<0ul, 1ul>) (this=0x7fffa8014e70, __args=...) at /usr/include/c++/10/functional:416
#15 0x00007ffff7273212 in std::_Bind<void (ARDOUR::Session::*(ARDOUR::Session*, bool))(bool)>::operator()<, void>() (this=0x7fffa8014e70) at /usr/include/c++/10/functional:499
#16 0x00007ffff726c270 in std::__invoke_impl<void, std::_Bind<void (ARDOUR::Session::*(ARDOUR::Session*, bool))(bool)>&>(std::__invoke_other, std::_Bind<void (ARDOUR::Session::*(ARDOUR::Session*, bool))(bool)>&) (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#17 0x00007ffff72642dc in std::__invoke_r<void, std::_Bind<void (ARDOUR::Session::*(ARDOUR::Session*, bool))(bool)>&>(std::_Bind<void (ARDOUR::Session::*(ARDOUR::Session*, bool))(bool)>&) (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#18 0x00007ffff725d9c2 in std::_Function_handler<void (), std::_Bind<void (ARDOUR::Session::*(ARDOUR::Session*, bool))(bool)> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#19 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x7fffbfffd780) at /usr/include/c++/10/bits/std_function.h:622
#20 0x0000555555dabea8 in PBD::SignalWithCombiner<PBD::OptionalLastValue<void>, void ()>::operator()() (this=0x555557e13770) at ../libs/pbd/pbd/signals.h:508
#21 0x00007ffff7058dc2 in ARDOUR::PortManager::graph_order_callback (this=0x555557e13690) at ../libs/ardour/port_manager.cc:1265
#22 0x00007fffe022d5a1 in ARDOUR::JACKAudioBackend::_graph_order_callback (arg=0x555557976bd0) at ../libs/backends/jack/jack_portengine.cc:301
#23 0x00007fffe18a7a42 in ?? () from /usr/lib/x86_64-linux-gnu/pipewire-0.3/jack/libjack.so.0
#24 0x00007fffe1093437 in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#25 0x00007fffe1094d16 in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#26 0x00007fffdbfb1c67 in ?? () from /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#27 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#28 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 39 (Thread 0x7fffd8a736c0 (LWP 15341) "pw-ardour"):
#0  0x00007ffff312a072 in epoll_wait (epfd=13, events=0x7fffd8a728c0, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fffe10a3138 in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#2  0x00007fffe1094c59 in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#3  0x00007fffdbfb1c67 in ?? () from /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#4  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#5  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 20 (Thread 0x7fffda5296c0 (LWP 15319) "gmain"):
#0  0x00007ffff311b4fd in __GI___poll (fds=0x555557a4c130, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff42fdc8e in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff42fdd9f in g_main_context_iteration () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff42fddf1 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff432ac35 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#5  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#6  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 10 (Thread 0x7fffdbbff6c0 (LWP 15308) "DeviceList"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff434d8ff in g_cond_wait () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6be9ee7 in ARDOUR::AudioEngine::do_devicelist_update (this=0x555557e13690) at ../libs/ardour/audioengine.cc:757
#3  0x00007ffff6bf6e3e in std::__invoke_impl<void, void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__f=@0x555557e37150: (void (ARDOUR::AudioEngine::*)(class ARDOUR::AudioEngine * const)) 0x7ffff6be9d8c <ARDOUR::AudioEngine::do_devicelist_update()>, __t=@0x555557e37160: 0x555557e13690) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff6bf6ce5 in std::__invoke<void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__fn=@0x555557e37150: (void (ARDOUR::AudioEngine::*)(class ARDOUR::AudioEngine * const)) 0x7ffff6be9d8c <ARDOUR::AudioEngine::do_devicelist_update()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff6bf6b04 in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x555557e37150, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff6bf655c in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::operator()<, void>() (this=0x555557e37150) at /usr/include/c++/10/functional:499
#7  0x00007ffff6bf5dac 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
#8  0x00007ffff6bf4c86 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
#9  0x00007ffff6bf348b 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
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x555557e19348) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x555557e19320) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 9 (Thread 0x7fffe0c5c6c0 (LWP 15307) "EngineWatchdog"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff434d8ff in g_cond_wait () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6be9c7b in ARDOUR::AudioEngine::do_reset_backend (this=0x555557e13690) at ../libs/ardour/audioengine.cc:722
#3  0x00007ffff6bf6e3e in std::__invoke_impl<void, void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__f=@0x555557e19460: (void (ARDOUR::AudioEngine::*)(ARDOUR::AudioEngine * const)) 0x7ffff6be98bc <ARDOUR::AudioEngine::do_reset_backend()>, __t=@0x555557e19470: 0x555557e13690) at /usr/include/c++/10/bits/invoke.h:73
#4  0x00007ffff6bf6ce5 in std::__invoke<void (ARDOUR::AudioEngine::*&)(), ARDOUR::AudioEngine*&> (__fn=@0x555557e19460: (void (ARDOUR::AudioEngine::*)(ARDOUR::AudioEngine * const)) 0x7ffff6be98bc <ARDOUR::AudioEngine::do_reset_backend()>) at /usr/include/c++/10/bits/invoke.h:95
#5  0x00007ffff6bf6b04 in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) (this=0x555557e19460, __args=...) at /usr/include/c++/10/functional:416
#6  0x00007ffff6bf655c in std::_Bind<void (ARDOUR::AudioEngine::*(ARDOUR::AudioEngine*))()>::operator()<, void>() (this=0x555557e19460) at /usr/include/c++/10/functional:499
#7  0x00007ffff6bf5dac 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
#8  0x00007ffff6bf4c86 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
#9  0x00007ffff6bf348b 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
#10 0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x555557e358c8) at /usr/include/c++/10/bits/std_function.h:622
#11 0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x555557e358a0) at ../libs/pbd/pthread_utils.cc:594
#12 0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#13 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 6 (Thread 0x7fffe37fe6c0 (LWP 15304) "Analyzer"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff434d8ff in g_cond_wait () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6bb220a in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:95
#3  0x00005555567ef121 in sigc::pointer_functor0<void>::operator() (this=0x5555577b2628) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00007ffff6bb558e in std::__invoke_impl<void, sigc::pointer_functor0<void>&> (__f=...) at /usr/include/c++/10/bits/invoke.h:60
#5  0x00007ffff6bb4e21 in std::__invoke_r<void, sigc::pointer_functor0<void>&> (__fn=...) at /usr/include/c++/10/bits/invoke.h:110
#6  0x00007ffff6bb411c in std::_Function_handler<void (), sigc::pointer_functor0<void> >::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#7  0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x5555577b2628) at /usr/include/c++/10/bits/std_function.h:622
#8  0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x5555577b2600) at ../libs/pbd/pthread_utils.cc:594
#9  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#10 0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 5 (Thread 0x7fffe3fff6c0 (LWP 15303) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff434d8ff in g_cond_wait () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff72c90e9 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff7f221e1 in std::__invoke_impl<void, void (*&)()> (__f=@0x555557788a68: 0x7ffff72c903b <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:60
#4  0x00007ffff7f216ed in std::__invoke_r<void, void (*&)()> (__fn=@0x555557788a68: 0x7ffff72c903b <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:110
#5  0x00007ffff7f2068f in std::_Function_handler<void (), void (*)()>::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#6  0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x555557788a68) at /usr/include/c++/10/bits/std_function.h:622
#7  0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x555557788a40) at ../libs/pbd/pthread_utils.cc:594
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x7ffff0c716c0 (LWP 15302) "PeakFileBuilder"):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff434d8ff in g_cond_wait () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff72c90e9 in peak_thread_work () at ../libs/ardour/source_factory.cc:73
#3  0x00007ffff7f221e1 in std::__invoke_impl<void, void (*&)()> (__f=@0x5555577b2aa8: 0x7ffff72c903b <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:60
#4  0x00007ffff7f216ed in std::__invoke_r<void, void (*&)()> (__fn=@0x5555577b2aa8: 0x7ffff72c903b <peak_thread_work()>) at /usr/include/c++/10/bits/invoke.h:110
#5  0x00007ffff7f2068f in std::_Function_handler<void (), void (*)()>::_M_invoke(std::_Any_data const&) (__functor=...) at /usr/include/c++/10/bits/std_function.h:291
#6  0x0000555555d9c5d6 in std::function<void ()>::operator()() const (this=0x5555577b2aa8) at /usr/include/c++/10/bits/std_function.h:622
#7  0x00007ffff4bbfedd in PBD::Thread::_run (arg=0x5555577b2a80) at ../libs/pbd/pthread_utils.cc:594
#8  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x7ffff14726c0 (LWP 15301) "LXVSTEventLoop"):
#0  0x00007ffff30ecadf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7ffff1471a70, rem=0x7ffff1471a80) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1  0x00007ffff30f9a27 in __GI___nanosleep (req=<optimized out>, rem=<optimized out>) at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffff432c42f in g_usleep () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#3  0x0000555556d75882 in gui_event_loop () at ../gtk2_ardour/linux_vst_gui_support.cc:463
#4  0x00007ffff4bbec48 in fake_thread_start (arg=0x555557773a20) at ../libs/pbd/pthread_utils.cc:199
#5  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#6  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x7ffff15fe900 (LWP 15300) "TriggerBox Work"):
#0  0x00007ffff311b4fd in __GI___poll (fds=0x7ffff15fdcf4, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff4b71974 in CrossThreadChannel::poll_for_request (this=0x5555576ce0a0) at ../libs/pbd/crossthread.posix.cc:108
#2  0x00007ffff4b719e5 in CrossThreadChannel::receive (this=0x5555576ce0a0, msg=@0x7ffff15fdd5f: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:133
#3  0x00007ffff734befb in ARDOUR::TriggerBoxThread::thread_work (this=0x5555576ce070) at ../libs/ardour/triggerbox.cc:5717
#4  0x00007ffff734be9f in ARDOUR::TriggerBoxThread::_thread_work (arg=0x5555576ce070) at ../libs/ardour/triggerbox.cc:5707
#5  0x00007ffff4bbec48 in fake_thread_start (arg=0x5555576cc5d0) at ../libs/pbd/pthread_utils.cc:199
#6  0x00007ffff309caa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x00007ffff3129c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x7ffff1d00d80 (LWP 15254) "ArdourGUI"):
#0  clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:62
#1  0x00007ffff3129b75 in __clone3_internal (arg=0x7ffe42ffd6c0, func=0x7ffff309c720 <start_thread>, cl_args=0x7fffffff7ff0) at ../sysdeps/unix/sysv/linux/clone-internal.c:82
#2  __GI___clone_internal (cl_args=cl_args@entry=0x7fffffff7ff0, func=func@entry=0x7ffff309c720 <start_thread>, arg=arg@entry=0x7ffe42ffd6c0) at ../sysdeps/unix/sysv/linux/clone-internal.c:100
#3  0x00007ffff309c550 in create_thread (pd=pd@entry=0x7ffe42ffd6c0, attr=attr@entry=0x7fffffff8200, stopped_start=stopped_start@entry=0x7fffffff80f6, stackaddr=stackaddr@entry=0x7ffe427fd000, stacksize=<optimized out>, thread_ran=thread_ran@entry=0x7fffffff80f7) at ./nptl/pthread_create.c:297
#4  0x00007ffff309d1a5 in __pthread_create_2_1 (newthread=<optimized out>, attr=<optimized out>, start_routine=<optimized out>, arg=<optimized out>) at ./nptl/pthread_create.c:836
#5  0x00007ffff4bbfcef in PBD::Thread::Thread(std::function<void ()> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (this=0x555558b279b0, slot=..., name="AutomationWatch") at ../libs/pbd/pthread_utils.cc:573
#6  0x00007ffff4bbfb77 in PBD::Thread::create(std::function<void ()> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (slot=..., name="AutomationWatch") at ../libs/pbd/pthread_utils.cc:546
#7  0x00007ffff6c63112 in ARDOUR::AutomationWatch::set_session (this=0x55557cbdc780, s=0x5555597e8000) at ../libs/ardour/automation_watch.cc:226
#8  0x0000555555e137c2 in ARDOUR_UI::set_session (this=0x555557e691c0, s=0x5555597e8000) at ../gtk2_ardour/ardour_ui_dialogs.cc:156
#9  0x0000555555e4ff00 in ARDOUR_UI::load_session_stage_two (this=0x555557e691c0, path="/home/martin/avworkspace/251221_disco4", snap_name="251221_disco4", mix_template="") at ../gtk2_ardour/ardour_ui_session.cc:623
#10 0x0000555555e4f404 in ARDOUR_UI::load_session (this=0x555557e691c0, path="/home/martin/avworkspace/251221_disco4", snap_name="251221_disco4", mix_template="") at ../gtk2_ardour/ardour_ui_session.cc:382
#11 0x0000555555e629a3 in ARDOUR_UI::load_session_from_startup_fsm (this=0x555557e691c0) at ../gtk2_ardour/ardour_ui_startup.cc:702
#12 0x0000555555e61914 in ARDOUR_UI::sfsm_response (this=0x555557e691c0, r=StartupFSM::LoadSession) at ../gtk2_ardour/ardour_ui_startup.cc:555
#13 0x0000555555e663ec in sigc::bound_mem_functor1<void, ARDOUR_UI, StartupFSM::Result>::operator() (this=0x5555579630e8, _A_a1=@0x7fffffffa4fc: StartupFSM::LoadSession) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:2066
#14 0x0000555555e6601d in sigc::adaptor_functor<sigc::bound_mem_functor1<void, ARDOUR_UI, StartupFSM::Result> >::operator()<StartupFSM::Result const&> (this=0x5555579630e0, _A_arg1=@0x7fffffffa4fc: StartupFSM::LoadSession) at ../../gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#15 0x0000555555e6591e in sigc::internal::slot_call<sigc::bound_mem_functor1<void, ARDOUR_UI, StartupFSM::Result>, void, StartupFSM::Result>::call_it (rep=0x5555579630b0, a_#0=@0x7fffffffa4fc: StartupFSM::LoadSession) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:451
#16 0x0000555556b24356 in sigc::internal::signal_emit1<void, StartupFSM::Result, sigc::nil>::emit (impl=0x555557963140, _A_a1=@0x7fffffffa4fc: StartupFSM::LoadSession) at ../../gtk/inst/include/sigc++-2.0/sigc++/signal.h:1041
#17 0x0000555556b239ff in sigc::signal1<void, StartupFSM::Result, sigc::nil>::emit (this=0x55555797c240, _A_a1=@0x7fffffffa4fc: StartupFSM::LoadSession) at ../../gtk/inst/include/sigc++-2.0/sigc++/signal.h:2951
#18 0x0000555556b2317f in sigc::signal1<void, StartupFSM::Result, sigc::nil>::operator() (this=0x55555797c240, _A_a1=@0x7fffffffa4fc: StartupFSM::LoadSession) at ../../gtk/inst/include/sigc++-2.0/sigc++/signal.h:2967
#19 0x0000555556b1e5f1 in StartupFSM::dialog_response_handler (this=0x55555797c0f0, response=-5, dialog_id=StartupFSM::PluginDialog) at ../gtk2_ardour/startup_fsm.cc:337
#20 0x0000555556b258f2 in sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>::operator() (this=0x555557a35420, _A_a1=@0x7fffffffa654: -5, _A_a2=@0x555557a35440: StartupFSM::PluginDialog) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:2143
#21 0x0000555556b25375 in sigc::adaptor_functor<sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID> >::operator()<int const&, StartupFSM::DialogID&> (this=0x555557a35418, _A_arg1=@0x7fffffffa654: -5, _A_arg2=@0x555557a35440: StartupFSM::PluginDialog) at ../../gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#22 0x0000555556b24e4f in sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<int const&> (this=0x555557a35410, _A_arg1=@0x7fffffffa654: -5) at ../../gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1136
#23 0x0000555556b24cf1 in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void, int>::call_it (rep=0x555557a353e0, a_1=@0x7fffffffa654: -5) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:170
#24 0x00007ffff46c4338 in sigc::slot1<void, int>::operator() (this=0x555557a87448, _A_a1=@0x7fffffffa654: -5) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:665
#25 0x00007ffff46c34ae in (anonymous namespace)::Dialog_signal_response_callback (self=0x555557fb4410, p0=-5, data=0x555557a87440) at ../libs/tk/ytkmm/dialog.cc:85
#26 0x00007ffff3d347d2 in g_closure_invoke () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#27 0x00007ffff3d4624a in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#28 0x00007ffff3d504ce in g_signal_emit_valist () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#29 0x00007ffff3d50b22 in g_signal_emit () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#30 0x00007ffff3ecd6a2 in IA__gtk_dialog_response (dialog=0x555557fb4410, response_id=-5) at ../libs/tk/ytk/gtkdialog.c:932
#31 0x00007ffff46c4017 in Gtk::Dialog::response (this=0x555557cceec0, response_id=-5) at ../libs/tk/ytkmm/dialog.cc:306
#32 0x0000555556b1fc81 in StartupFSM::engine_running (this=0x55555797c0f0) at ../gtk2_ardour/startup_fsm.cc:567
#33 0x0000555556b1f9fa in StartupFSM::start_audio_midi_setup (this=0x55555797c0f0) at ../gtk2_ardour/startup_fsm.cc:541
#34 0x0000555556b1e41d in StartupFSM::dialog_response_handler (this=0x55555797c0f0, response=-3, dialog_id=StartupFSM::NewSessionDialog) at ../gtk2_ardour/startup_fsm.cc:274
#35 0x0000555556b258f2 in sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>::operator() (this=0x555557af0f10, _A_a1=@0x7fffffffb184: -3, _A_a2=@0x555557af0f30: StartupFSM::NewSessionDialog) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:2143
#36 0x0000555556b25375 in sigc::adaptor_functor<sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID> >::operator()<int const&, StartupFSM::DialogID&> (this=0x555557af0f08, _A_arg1=@0x7fffffffb184: -3, _A_arg2=@0x555557af0f30: StartupFSM::NewSessionDialog) at ../../gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#37 0x0000555556b24e4f in sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<int const&> (this=0x555557af0f00, _A_arg1=@0x7fffffffb184: -3) at ../../gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1136
#38 0x0000555556b24cf1 in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, StartupFSM, int, StartupFSM::DialogID>, StartupFSM::DialogID, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void, int>::call_it (rep=0x555557af0ed0, a_1=@0x7fffffffb184: -3) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:170
#39 0x00007ffff46c4338 in sigc::slot1<void, int>::operator() (this=0x555557a80978, _A_a1=@0x7fffffffb184: -3) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:665
#40 0x00007ffff46c34ae in (anonymous namespace)::Dialog_signal_response_callback (self=0x555557fb4190, p0=-3, data=0x555557a80970) at ../libs/tk/ytkmm/dialog.cc:85
#41 0x00007ffff3d347d2 in g_closure_invoke () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#42 0x00007ffff3d4624a in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#43 0x00007ffff3d504ce in g_signal_emit_valist () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#44 0x00007ffff3d50b22 in g_signal_emit () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#45 0x00007ffff3ecd6a2 in IA__gtk_dialog_response (dialog=0x555557fb4190, response_id=-3) at ../libs/tk/ytk/gtkdialog.c:932
#46 0x00007ffff46c4017 in Gtk::Dialog::response (this=0x555557a32890, response_id=-3) at ../libs/tk/ytkmm/dialog.cc:306
#47 0x0000555556a77ebd in SessionDialog::recent_row_activated (this=0x555557a32890) at ../gtk2_ardour/session_dialog.cc:1188
#48 0x0000555556a7e46e in sigc::bound_mem_functor2<void, SessionDialog, Gtk::TreePath const&, Gtk::TreeViewColumn*>::operator() (this=0x555557a7b828, _A_a1=..., _A_a2=@0x7fffffffb760: 0x5555583665e0) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:2143
#49 0x0000555556a7caf9 in sigc::adaptor_functor<sigc::bound_mem_functor2<void, SessionDialog, Gtk::TreePath const&, Gtk::TreeViewColumn*> >::operator()<Gtk::TreePath const&, Gtk::TreeViewColumn* const&> (this=0x555557a7b820, _A_arg1=..., _A_arg2=@0x7fffffffb760: 0x5555583665e0) at ../../gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#50 0x0000555556a7b816 in sigc::internal::slot_call2<sigc::bound_mem_functor2<void, SessionDialog, Gtk::TreePath const&, Gtk::TreeViewColumn*>, void, Gtk::TreePath const&, Gtk::TreeViewColumn*>::call_it (rep=0x555557a7b7f0, a_1=..., a_2=@0x7fffffffb760: 0x5555583665e0) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:206
#51 0x00007ffff4772303 in sigc::slot2<void, Gtk::TreePath const&, Gtk::TreeViewColumn*>::operator() (this=0x555557a3bb48, _A_a1=..., _A_a2=@0x7fffffffb760: 0x5555583665e0) at ../../gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:798
#52 0x00007ffff476d571 in (anonymous namespace)::TreeView_signal_row_activated_callback (self=0x555557a3e4a0, p0=0x555557b33e70, p1=0x555557942900, data=0x555557a3bb40) at ../libs/tk/ytkmm/treeview.cc:550
#53 0x00007ffff3f74c7a in _gtk_marshal_VOID__BOXED_OBJECT (closure=0x555557ac0fa0, return_value=0x0, n_param_values=3, param_values=0x7fffffffb9c0, invocation_hint=0x7fffffffb960, marshal_data=0x0) at ../libs/tk/ytk/gtkmarshalers.c:1338
#54 0x00007ffff3d347d2 in g_closure_invoke () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#55 0x00007ffff3d4624a in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#56 0x00007ffff3d504ce in g_signal_emit_valist () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#57 0x00007ffff3d50b22 in g_signal_emit () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#58 0x00007ffff40c6107 in IA__gtk_tree_view_row_activated (tree_view=0x555557a3e4a0, path=0x555557b33f50, column=0x555557942900) at ../libs/tk/ytk/gtktreeview.c:11818
#59 0x00007ffff40b0935 in gtk_tree_view_button_press (widget=0x555557a3e4a0, event=0x555557cd3920) at ../libs/tk/ytk/gtktreeview.c:2887
#60 0x00007ffff47805bf in Gtk::Widget_Class::button_press_event_callback (self=0x555557a3e4a0, p0=0x555557cd3920) at ../libs/tk/ytkmm/widget.cc:4307
#61 0x00007ffff3f728bf in _gtk_marshal_BOOLEAN__BOXED (closure=0x555557ee4080, return_value=0x7fffffffbfb0, n_param_values=2, param_values=0x7fffffffc060, invocation_hint=0x7fffffffc000, marshal_data=0x7ffff47804d4 <Gtk::Widget_Class::button_press_event_callback(_GtkWidget*, _GdkEventButton*)>) at ../libs/tk/ytk/gtkmarshalers.c:84
#62 0x00007ffff3d347d2 in g_closure_invoke () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#63 0x00007ffff3d45e29 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#64 0x00007ffff3d4fbb5 in g_signal_emit_valist () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#65 0x00007ffff3d50b22 in g_signal_emit () from /opt/Ardour-9.0.rc2.38-dbg/lib/libgobject-2.0.so.0
#66 0x00007ffff40ea24a in gtk_widget_event_internal (widget=0x555557a3e4a0, event=0x555557cd3920) at ../libs/tk/ytk/gtkwidget.c:5058
#67 0x00007ffff40e9d4c in IA__gtk_widget_event (widget=0x555557a3e4a0, event=0x555557cd3920) at ../libs/tk/ytk/gtkwidget.c:4846
#68 0x00007ffff3f70926 in IA__gtk_propagate_event (widget=0x555557a3e4a0, event=0x555557cd3920) at ../libs/tk/ytk/gtkmain.c:2457
#69 0x00007ffff3f6f221 in IA__gtk_main_do_event (event=0x555557cd3920) at ../libs/tk/ytk/gtkmain.c:1607
#70 0x00007ffff4d37198 in gdk_event_dispatch (source=0x555557ea1300, callback=0x0, user_data=0x0) at ../libs/tk/ydk/x11/gdkevents-x11.c:2541
#71 0x00007ffff42fda73 in g_main_context_dispatch () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#72 0x00007ffff42fdcf8 in ?? () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#73 0x00007ffff42fe023 in g_main_loop_run () from /opt/Ardour-9.0.rc2.38-dbg/lib/libglib-2.0.so.0
#74 0x00007ffff3f6e949 in IA__gtk_main () at ../libs/tk/ytk/gtkmain.c:1213
#75 0x00007ffff46f643d in Gtk::Main::run_impl (this=0x555557e72860) at ../libs/tk/ytkmm/main.cc:537
#76 0x00007ffff46f6245 in Gtk::Main::run () at ../libs/tk/ytkmm/main.cc:480
#77 0x00007ffff51cfaf8 in Gtkmm2ext::UI::run (this=0x555557e691c0, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:319
#78 0x000055555648fcd2 in main (argc=1, argv=0x7fffffffcb98) at ../gtk2_ardour/main.cc:467
(gdb)