#0  0x00007ffff55a9b2b in ?? () from /usr/lib/libc.so.6
No symbol table info available.
#1  0x00007fffe84ad100 in ARDOUR::JACKAudioBackend::port_data_type(std::shared_ptr<ARDOUR::ProtoPort> const&) const () from /usr/lib/ardour8/backends/libjack_audiobackend.so
No symbol table info available.
#2  0x0000555555f33ad6 in ?? ()
No symbol table info available.
#3  0x0000555555d2809d in ?? ()
No symbol table info available.
#4  0x0000555555f23462 in ?? ()
No symbol table info available.
#5  0x00007ffff6fe5198 in AbstractUI<Gtkmm2ext::UIRequest>::handle_ui_requests (this=0x555556d0b290) at /usr/include/glibmm-2.4/glibmm/threads.h:849
        req = 0x7fff940027e0
        i = <optimized out>
        vec = <optimized out>
        cnt = <optimized out>
        rbml = {
          rwlock_ = @0x555556d0b340,
          locked_ = 0x0
        }
#6  0x00007ffff6f46a4f in BaseUI::request_handler (this=0x555556d0b290, ioc=Glib::IO_IN) at ../libs/pbd/base_ui.cc:153
No locals.
#7  0x00007ffff6f3db2b in sigc::slot1<bool, Glib::IOCondition>::operator() (_A_a1=@0x7fffffffdd64: Glib::IO_IN, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:675
No locals.
#8  cross_thread_channel_call_receive_slot (condition=<optimized out>, data=<optimized out>) at ../libs/pbd/crossthread.cc:52
        ctc = <optimized out>
#9  0x00007ffff63f4ab9 in g_main_dispatch (context=0x55555702d200) at ../glib/glib/gmain.c:3344
        dispatch = 0x7ffff6454a50 <g_io_unix_dispatch>
        prev_source = 0x0
        begin_time_nsec = 0x180b65a45312e
        was_in_call = 0x0
        user_data = 0x555556d0b318
        callback = 0x7ffff6f3daf0 <cross_thread_channel_call_receive_slot(_GIOChannel*, GIOCondition, void*)>
        cb_funcs = 0x7ffff64e4380 <g_source_callback_funcs>
        cb_data = 0x555556d52750
        need_destroy = <optimized out>
        source = 0x555556d5df00
        current = 0x5555569b9670
        i = 0x1
        __func__ = "g_main_dispatch"
#10 0x00007ffff64569e7 in g_main_context_dispatch_unlocked (context=0x55555702d200) at ../glib/glib/gmain.c:4152
No locals.
#11 g_main_context_iterate_unlocked.isra.0 (context=0x55555702d200, block=block@entry=0x1, dispatch=dispatch@entry=0x1, self=<optimized out>) at ../glib/glib/gmain.c:4217
        max_priority = 0x0
        timeout = 0x0
        some_ready = 0x1
        nfds = 0x3
        allocated_nfds = <optimized out>
        fds = 0x555556a21020
        begin_time_nsec = 0x180b65a449f2c
#12 0x00007ffff63f57b7 in g_main_loop_run (loop=0x555556bc0160) at ../glib/glib/gmain.c:4419
        self = <optimized out>
        __func__ = "g_main_loop_run"
#13 0x00007ffff6874103 in IA__gtk_main () at ../libs/tk/ytk/gtkmain.c:1213
        tmp_list = 0x0
        functions = 0x0
        init = <optimized out>
        loop = 0x555556bc0160
#14 0x00007ffff6feb8a9 in Gtkmm2ext::UI::run (this=0x555556d0b290, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:305
No locals.
#15 0x000055555596e7a7 in main ()
No symbol table info available.

Thread 388 (Thread 0x7fffb67fc6c0 (LWP 624654) "AudioEngine 3"):
#0  0x00007ffff55548b2 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007ffff6561627 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#2  0x00007ffff6551e79 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#3  0x00007ffff2fbf51c in pw_data_loop_wait () from /usr/lib/libpipewire-0.3.so.0
#4  0x00007ffff3072971 in jack_cycle_wait () from /usr/lib/libjack.so.0
#5  0x00007fffe84a8d24 in ARDOUR::JACKAudioBackend::process_thread() () from /usr/lib/ardour8/backends/libjack_audiobackend.so
#6  0x00007ffff6551fb5 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#7  0x00007ffff2fc4633 in ?? () from /usr/lib/libpipewire-0.3.so.0
#8  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#9  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 387 (Thread 0x7fffd0f2e6c0 (LWP 624651) "pw-ardour"):
#0  0x00007ffff55548b2 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007ffff6561627 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#2  0x00007ffff6552179 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#3  0x00007ffff3010587 in ?? () from /usr/lib/libpipewire-0.3.so.0
#4  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#5  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 386 (Thread 0x7fffb6ffd6c0 (LWP 624650) "pw-ardour"):
#0  0x00007ffff55548b2 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007ffff6561627 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#2  0x00007ffff6552179 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#3  0x00007ffff3010587 in ?? () from /usr/lib/libpipewire-0.3.so.0
#4  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#5  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 384 (Thread 0x7fffb77fe6c0 (LWP 624648) "module-rt"):
#0  0x00007ffff55548b2 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007ffff6561627 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#2  0x00007ffff6552179 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
#3  0x00007ffff3010587 in ?? () from /usr/lib/libpipewire-0.3.so.0
#4  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#5  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 138 (Thread 0x7fff3a9c26c0 (LWP 409629) "Mackie"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff645692d in g_main_context_poll_unlocked (priority=0x7fffffff, context=0x5555694f8e20, timeout=<optimized out>, fds=0x7fff08000c40, n_fds=0x3) at ../glib/glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=0x5555694f8e20, block=block@entry=0x1, dispatch=dispatch@entry=0x1, self=<optimized out>) at ../glib/glib/gmain.c:4212
#3  0x00007ffff63f57b7 in g_main_loop_run (loop=0x555569548ce0) at ../glib/glib/gmain.c:4419
#4  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x5555694f5ac8) at /usr/include/boost/function/function_template.hpp:771
#5  PBD::Thread::_run (arg=0x5555694f5aa0) at ../libs/pbd/pthread_utils.cc:488
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 133 (Thread 0x7fff41ffb6c0 (LWP 409168) "LV2Worker"):
#0  futex_wait (addr=0x7fff50019b74, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x7fff50019b70, state=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 132 (Thread 0x7fff427fc6c0 (LWP 409167) "LV2Worker"):
#0  futex_wait (addr=0x7fff50019b74, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x7fff50019b70, state=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 131 (Thread 0x7fff42ffd6c0 (LWP 409166) "LV2Worker"):
#0  futex_wait (addr=0x7fff50019b74, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x7fff50019b70, state=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 130 (Thread 0x7fff437fe6c0 (LWP 409165) "LV2Worker"):
#0  futex_wait (addr=0x7fff50019b74, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x7fff50019b70, state=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 129 (Thread 0x7fff43fff6c0 (LWP 409164) "LV2Worker"):
#0  futex_wait (addr=0x7fff50019b74, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x7fff50019b70, state=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 128 (Thread 0x7fff496c06c0 (LWP 409163) "LV2Worker"):
#0  futex_wait (addr=0x7fff50019b74, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x7fff50019b70, state=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 127 (Thread 0x7fff49ec16c0 (LWP 409162) "LV2Worker"):
#0  futex_wait (addr=0x7fff50019b74, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x7fff50019b70, state=0x8) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 126 (Thread 0x7fff4bfff6c0 (LWP 409161) "AutomationWatch"):
#0  0x00007ffff551c733 in clock_nanosleep () from /usr/lib/libc.so.6
#1  0x00007ffff5528827 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007ffff6425f10 in g_usleep (microseconds=<optimized out>) at ../glib/glib/gtimer.c:275
#3  g_usleep (microseconds=<optimized out>) at ../glib/glib/gtimer.c:263
#4  0x00007ffff7696976 in ARDOUR::AutomationWatch::thread (this=0x5555593fffe0) at ../libs/ardour/automation_watch.cc:207
#5  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x55555abc5b98) at /usr/include/boost/function/function_template.hpp:771
#6  PBD::Thread::_run (arg=0x55555abc5b70) at ../libs/pbd/pthread_utils.cc:488
#7  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#8  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 125 (Thread 0x7fff64ef86c0 (LWP 409160) "autoconnect"):
#0  0x00007ffff54cba19 in ?? () from /usr/lib/libc.so.6
#1  0x00007ffff54ce479 in pthread_cond_wait () from /usr/lib/libc.so.6
#2  0x00007ffff796d139 in ARDOUR::Session::auto_connect_thread_run (this=0x5555596d87a0) at ../libs/ardour/session.cc:7913
#3  0x00007ffff796d65e in ARDOUR::Session::auto_connect_thread (arg=0x5555596d87a0) at ../libs/ardour/session.cc:7844
#4  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#5  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 124 (Thread 0x7fff3b9c46c0 (LWP 409159) "SessionSignals"):
#0  0x00007ffff54cba19 in ?? () from /usr/lib/libc.so.6
#1  0x00007ffff54ce479 in pthread_cond_wait () from /usr/lib/libc.so.6
#2  0x00007ffff79aebc5 in ARDOUR::Session::emit_thread_run (this=0x5555596d87a0) at ../libs/ardour/session_process.cc:1241
#3  0x00007ffff79aebfe in ARDOUR::Session::emit_thread (arg=0x5555596d87a0) at ../libs/ardour/session_process.cc:1230
#4  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#5  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 123 (Thread 0x7fff667fc6c0 (LWP 409158) "ArdourGUI"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff5428ab5 in ?? () from /usr/lib/libusb-1.0.so.0
#2  0x00007ffff542bbd8 in libusb_handle_events_timeout_completed () from /usr/lib/libusb-1.0.so.0
#3  0x00007ffff542bc2f in libusb_handle_events () from /usr/lib/libusb-1.0.so.0
#4  0x00007ffff76a9d7e in usb_hotplug_thread (user_data=<optimized out>) at ../libs/ardour/control_protocol_manager.cc:87
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 122 (Thread 0x7fff48e866c0 (LWP 409157) "libusb_event"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff542d226 in ?? () from /usr/lib/libusb-1.0.so.0
#2  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#3  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 121 (Thread 0x7fff65ffb6c0 (LWP 409156) "Generic MIDI"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff645692d in g_main_context_poll_unlocked (priority=0x7fffffff, context=0x55555ec7efe0, timeout=<optimized out>, fds=0x7fff44001fa0, n_fds=0x2) at ../glib/glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=0x55555ec7efe0, block=block@entry=0x1, dispatch=dispatch@entry=0x1, self=<optimized out>) at ../glib/glib/gmain.c:4212
#3  0x00007ffff63f57b7 in g_main_loop_run (loop=0x55555c8d9110) at ../glib/glib/gmain.c:4419
#4  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x55555cd4c3c8) at /usr/include/boost/function/function_template.hpp:771
#5  PBD::Thread::_run (arg=0x55555cd4c3a0) at ../libs/pbd/pthread_utils.cc:488
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 99 (Thread 0x7fff66ffd6c0 (LWP 409129) "LV2Worker"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff6f5cd1b in PBD::Semaphore::wait (this=0x55555c7a6110) at ../libs/pbd/semutils.cc:120
#2  PBD::Semaphore::wait (this=this@entry=0x55555c7a6110) at ../libs/pbd/semutils.cc:117
#3  0x00007ffff7a60aae in ARDOUR::Worker::run (this=0x55555c7a60f0) at ../libs/ardour/worker.cc:145
#4  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x5555590879e8) at /usr/include/boost/function/function_template.hpp:771
#5  PBD::Thread::_run (arg=0x5555590879c0) at ../libs/pbd/pthread_utils.cc:488
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 77 (Thread 0x7fff677fe6c0 (LWP 409103) "ArdourGUI"):
#0  futex_wait (addr=0x5555595c6c84, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x5555595c6c80, state=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 76 (Thread 0x7fff67fff6c0 (LWP 409102) "ArdourGUI"):
#0  futex_wait (addr=0x5555595c6c84, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x5555595c6c80, state=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 75 (Thread 0x7fff70a2d6c0 (LWP 409101) "ArdourGUI"):
#0  futex_wait (addr=0x5555595c6c84, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x5555595c6c80, state=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 74 (Thread 0x7fff72ffd6c0 (LWP 409100) "ArdourGUI"):
#0  futex_wait (addr=0x5555595c6c84, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x5555595c6c80, state=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 73 (Thread 0x7fff73fff6c0 (LWP 409099) "ArdourGUI"):
#0  futex_wait (addr=0x5555595c6c84, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x5555595c6c80, state=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 72 (Thread 0x7fff737fe6c0 (LWP 409098) "ArdourGUI"):
#0  futex_wait (addr=0x5555595c6c84, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x5555595c6c80, state=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 71 (Thread 0x7fffb7fff6c0 (LWP 409097) "ArdourGUI"):
#0  futex_wait (addr=0x5555595c6c84, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/x86/futex.h:97
#1  do_wait (addr=<optimized out>, val=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/wait.h:67
#2  gomp_barrier_wait_end (bar=0x5555595c6c80, state=0x18) at /usr/src/debug/gcc/gcc/libgomp/config/linux/bar.c:48
#3  0x00007ffff321fed1 in gomp_simple_barrier_wait (bar=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/config/posix/simple-bar.h:60
#4  gomp_thread_start (xdata=<optimized out>) at /usr/src/debug/gcc/gcc/libgomp/team.c:133
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 49 (Thread 0x7fff90ff96c0 (LWP 409033) "midiUI"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff645692d in g_main_context_poll_unlocked (priority=0x7fffffff, context=0x55555983d0c0, timeout=<optimized out>, fds=0x7fff6c041a60, n_fds=0x4) at ../glib/glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=0x55555983d0c0, block=block@entry=0x1, dispatch=dispatch@entry=0x1, self=<optimized out>) at ../glib/glib/gmain.c:4212
#3  0x00007ffff63f57b7 in g_main_loop_run (loop=0x55555983d270) at ../glib/glib/gmain.c:4419
#4  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x55555983d3c8) at /usr/include/boost/function/function_template.hpp:771
#5  PBD::Thread::_run (arg=0x55555983d3a0) at ../libs/pbd/pthread_utils.cc:488
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 48 (Thread 0x7fffb47f86c0 (LWP 409032) "butler"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff6f46add in poll (__timeout=0xffffffff, __nfds=0x1, __fds=0x7fffb47ef9b0) at /usr/include/bits/poll2.h:39
#2  CrossThreadChannel::poll_for_request (this=<optimized out>) at ../libs/pbd/crossthread.posix.cc:108
#3  0x00007ffff6f46b63 in CrossThreadChannel::receive (this=this@entry=0x555558966a38, msg=@0x7fffb47efa80: 0xe0, wait=wait@entry=0x1) at ../libs/pbd/crossthread.posix.cc:133
#4  0x00007ffff76a5e6b in ARDOUR::Butler::thread_work (this=0x555558966990) at ../libs/ardour/butler.cc:188
#5  0x00007ffff6f5ab2a in fake_thread_start (arg=0x55555cb15840) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 40 (Thread 0x7fff937fe6c0 (LWP 409011) "ArdourGUI"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x55555c986668, mutex=0x55555c986660) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff63bd90c in g_async_queue_pop_intern_unlocked (queue=0x55555c986660, wait=0x1, end_time=0xffffffffffffffff) at ../glib/glib/gasyncqueue.c:375
#3  0x00007ffff63bd97d in g_async_queue_pop (queue=0x55555c986660) at ../glib/glib/gasyncqueue.c:409
#4  0x00007ffff5c135fc in ?? () from /usr/lib/libpangoft2-1.0.so.0
#5  0x00007ffff6424266 in g_thread_proxy (data=0x555558a32d80) at ../glib/glib/gthread.c:835
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 38 (Thread 0x7fff93fff6c0 (LWP 409008) "ArdourGUI"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x555556b639d8, mutex=0x555556b639d0) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff63bd90c in g_async_queue_pop_intern_unlocked (queue=0x555556b639d0, wait=0x1, end_time=0xffffffffffffffff) at ../glib/glib/gasyncqueue.c:375
#3  0x00007ffff63bd97d in g_async_queue_pop (queue=0x555556b639d0) at ../glib/glib/gasyncqueue.c:409
#4  0x00007ffff5c135fc in ?? () from /usr/lib/libpangoft2-1.0.so.0
#5  0x00007ffff6424266 in g_thread_proxy (data=0x555558471380) at ../glib/glib/gthread.c:835
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 26 (Thread 0x7fffd17fa6c0 (LWP 408986) "gdbus"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff645692d in g_main_context_poll_unlocked (priority=0x7fffffff, context=0x555556a79820, timeout=<optimized out>, fds=0x7fffbc000b90, n_fds=0x2) at ../glib/glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=0x555556a79820, block=block@entry=0x1, dispatch=dispatch@entry=0x1, self=<optimized out>) at ../glib/glib/gmain.c:4212
#3  0x00007ffff63f57b7 in g_main_loop_run (loop=0x555556a79590) at ../glib/glib/gmain.c:4419
#4  0x00007ffff4bc5574 in ?? () from /usr/lib/libgio-2.0.so.0
#5  0x00007ffff6424266 in g_thread_proxy (data=0x555556a79920) at ../glib/glib/gthread.c:835
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 25 (Thread 0x7fffd1ffb6c0 (LWP 408985) "gmain"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff645692d in g_main_context_poll_unlocked (priority=0x7fffffff, context=0x555556a69350, timeout=<optimized out>, fds=0x555556a695f0, n_fds=0x2) at ../glib/glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x555556a69350, block=block@entry=0x1, dispatch=dispatch@entry=0x1, self=<optimized out>) at ../glib/glib/gmain.c:4212
#3  0x00007ffff63f3fc5 in g_main_context_iteration (context=0x555556a69350, may_block=may_block@entry=0x1) at ../glib/glib/gmain.c:4282
#4  0x00007ffff63f401a in glib_worker_main (data=<optimized out>) at ../glib/glib/gmain.c:6442
#5  0x00007ffff6424266 in g_thread_proxy (data=0x555556a69590) at ../glib/glib/gthread.c:835
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 24 (Thread 0x7fffd37fe6c0 (LWP 408984) "pool-spawner"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x555556a685a8, mutex=0x555556a685a0) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff63bd90c in g_async_queue_pop_intern_unlocked (queue=0x555556a685a0, wait=0x1, end_time=0xffffffffffffffff) at ../glib/glib/gasyncqueue.c:375
#3  0x00007ffff64296b7 in g_thread_pool_spawn_thread (data=<optimized out>) at ../glib/glib/gthreadpool.c:297
#4  0x00007ffff6424266 in g_thread_proxy (data=0x555556a67f00) at ../glib/glib/gthread.c:835
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7fffd2ffd6c0 (LWP 408967) "ArdourGUI"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x555556da90c8, mutex=0x555556da90c0) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff63bd90c in g_async_queue_pop_intern_unlocked (queue=0x555556da90c0, wait=0x1, end_time=0xffffffffffffffff) at ../glib/glib/gasyncqueue.c:375
#3  0x00007ffff63bd97d in g_async_queue_pop (queue=0x555556da90c0) at ../glib/glib/gasyncqueue.c:409
#4  0x00007ffff5c135fc in ?? () from /usr/lib/libpangoft2-1.0.so.0
#5  0x00007ffff6424266 in g_thread_proxy (data=0x555556dae640) at ../glib/glib/gthread.c:835
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fffd27fc6c0 (LWP 408966) "ArdourGUI"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x555556ef0a18, mutex=0x555556ef0a10) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff63bd90c in g_async_queue_pop_intern_unlocked (queue=0x555556ef0a10, wait=0x1, end_time=0xffffffffffffffff) at ../glib/glib/gasyncqueue.c:375
#3  0x00007ffff63bd97d in g_async_queue_pop (queue=0x555556ef0a10) at ../glib/glib/gasyncqueue.c:409
#4  0x00007ffff5c135fc in ?? () from /usr/lib/libpangoft2-1.0.so.0
#5  0x00007ffff6424266 in g_thread_proxy (data=0x555556eea080) at ../glib/glib/gthread.c:835
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7fffe8d6c6c0 (LWP 408960) "DeviceList"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x555556737890, mutex=0x5555567378a0) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff7656578 in ARDOUR::AudioEngine::do_devicelist_update (this=0x555556736e50) at ../libs/ardour/audioengine.cc:760
#3  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x55555672b1c8) at /usr/include/boost/function/function_template.hpp:771
#4  PBD::Thread::_run (arg=0x55555672b1a0) at ../libs/pbd/pthread_utils.cc:488
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fffe99e06c0 (LWP 408959) "EngineWatchdog"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x555556737860, mutex=0x555556737870) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff7657728 in ARDOUR::AudioEngine::do_reset_backend (this=0x555556736e50) at ../libs/ardour/audioengine.cc:724
#3  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x55555672b6c8) at /usr/include/boost/function/function_template.hpp:771
#4  PBD::Thread::_run (arg=0x55555672b6a0) at ../libs/pbd/pthread_utils.cc:488
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fffea7fc6c0 (LWP 408943) "Analyzer"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x7ffff7f793c0 <ARDOUR::Analyser::SourcesToAnalyse>, mutex=0x7ffff7f793b8 <ARDOUR::Analyser::analysis_queue_lock>) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff7634a6c in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:95
#3  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x555556726108) at /usr/include/boost/function/function_template.hpp:771
#4  PBD::Thread::_run (arg=0x5555567260e0) at ../libs/pbd/pthread_utils.cc:488
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffeaffd6c0 (LWP 408942) "PeakFileBuilder"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x7ffff7f7b760 <ARDOUR::SourceFactory::PeaksToBuild>, mutex=0x7ffff7f7b778 <ARDOUR::SourceFactory::peak_building_lock>) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff7a00003 in peak_thread_work () at ../libs/ardour/source_factory.cc:75
#3  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x555556727ad8) at /usr/include/boost/function/function_template.hpp:771
#4  PBD::Thread::_run (arg=0x555556727ab0) at ../libs/pbd/pthread_utils.cc:488
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffeb7fe6c0 (LWP 408941) "PeakFileBuilder"):
#0  0x00007ffff55521fd in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff644fa10 in g_cond_wait (cond=0x7ffff7f7b760 <ARDOUR::SourceFactory::PeaksToBuild>, mutex=0x7ffff7f7b778 <ARDOUR::SourceFactory::peak_building_lock>) at ../glib/glib/gthread-posix.c:1552
#2  0x00007ffff7a00003 in peak_thread_work () at ../libs/ardour/source_factory.cc:75
#3  0x00007ffff6f5abda in boost::function0<void>::operator() (this=0x5555567275f8) at /usr/include/boost/function/function_template.hpp:771
#4  PBD::Thread::_run (arg=0x5555567275d0) at ../libs/pbd/pthread_utils.cc:488
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffebfff6c0 (LWP 408940) "LXVSTEventLoop"):
#0  0x00007ffff551c733 in clock_nanosleep () from /usr/lib/libc.so.6
#1  0x00007ffff5528827 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007ffff6425f10 in g_usleep (microseconds=<optimized out>) at ../glib/glib/gtimer.c:275
#3  g_usleep (microseconds=<optimized out>) at ../glib/glib/gtimer.c:263
#4  0x00005555561c8337 in ?? ()
#5  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7ffff01cd6c0 (LWP 408939) "Trigger Worker"):
#0  0x00007ffff554663d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff6f46add in poll (__timeout=0xffffffff, __nfds=0x1, __fds=0x7ffff01c4a90) at /usr/include/bits/poll2.h:39
#2  CrossThreadChannel::poll_for_request (this=<optimized out>) at ../libs/pbd/crossthread.posix.cc:108
#3  0x00007ffff6f46b63 in CrossThreadChannel::receive (this=this@entry=0x5555566f3950, msg=@0x7ffff01c4af7: 0x0, wait=wait@entry=0x1) at ../libs/pbd/crossthread.posix.cc:133
#4  0x00007ffff7a4f064 in ARDOUR::TriggerBoxThread::thread_work (this=0x5555566f3920) at ../libs/ardour/triggerbox.cc:4880
#5  0x00007ffff6f5ab2a in fake_thread_start (arg=0x555556658f10) at ../libs/pbd/pthread_utils.cc:101
#6  0x00007ffff54cf39d in ?? () from /usr/lib/libc.so.6
#7  0x00007ffff555449c in ?? () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff08d2a80 (LWP 408903) "ArdourGUI"):
#0  0x00007ffff55a9b2b in ?? () from /usr/lib/libc.so.6
#1  0x00007fffe84ad100 in ARDOUR::JACKAudioBackend::port_data_type(std::shared_ptr<ARDOUR::ProtoPort> const&) const () from /usr/lib/ardour8/backends/libjack_audiobackend.so
#2  0x0000555555f33ad6 in ?? ()
#3  0x0000555555d2809d in ?? ()
#4  0x0000555555f23462 in ?? ()
#5  0x00007ffff6fe5198 in AbstractUI<Gtkmm2ext::UIRequest>::handle_ui_requests (this=0x555556d0b290) at /usr/include/glibmm-2.4/glibmm/threads.h:849
#6  0x00007ffff6f46a4f in BaseUI::request_handler (this=0x555556d0b290, ioc=Glib::IO_IN) at ../libs/pbd/base_ui.cc:153
#7  0x00007ffff6f3db2b in sigc::slot1<bool, Glib::IOCondition>::operator() (_A_a1=@0x7fffffffdd64: Glib::IO_IN, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:675
#8  cross_thread_channel_call_receive_slot (condition=<optimized out>, data=<optimized out>) at ../libs/pbd/crossthread.cc:52
#9  0x00007ffff63f4ab9 in g_main_dispatch (context=0x55555702d200) at ../glib/glib/gmain.c:3344
#10 0x00007ffff64569e7 in g_main_context_dispatch_unlocked (context=0x55555702d200) at ../glib/glib/gmain.c:4152
#11 g_main_context_iterate_unlocked.isra.0 (context=0x55555702d200, block=block@entry=0x1, dispatch=dispatch@entry=0x1, self=<optimized out>) at ../glib/glib/gmain.c:4217
#12 0x00007ffff63f57b7 in g_main_loop_run (loop=0x555556bc0160) at ../glib/glib/gmain.c:4419
#13 0x00007ffff6874103 in IA__gtk_main () at ../libs/tk/ytk/gtkmain.c:1213
#14 0x00007ffff6feb8a9 in Gtkmm2ext::UI::run (this=0x555556d0b290, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:305
#15 0x000055555596e7a7 in main ()