Thread 54 (Thread 0x7fffe0818640 (LWP 10550) "audioengine"): #0 0x00007ffff579467d in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff3d0fe1d in () at /usr/lib/libjack.so.0 #2 0x00007ffff3cf198a in () at /usr/lib/libjack.so.0 #3 0x00007ffff3cef8c1 in () at /usr/lib/libjack.so.0 #4 0x00007fffe9bc9854 in ARDOUR::JACKAudioBackend::process_thread() () at /usr/lib/ardour6/backends/libjack_audiobackend.so #5 0x00007ffff3cefd74 in () at /usr/lib/libjack.so.0 #6 0x00007ffff3d0df51 in () at /usr/lib/libjack.so.0 #7 0x00007ffff571554d in () at /usr/lib/libc.so.6 #8 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 53 (Thread 0x7fffe0b87640 (LWP 10549) "audioengine"): #0 0x00007ffff578af2c in read () at /usr/lib/libc.so.6 #1 0x00007ffff3d0f253 in () at /usr/lib/libjack.so.0 #2 0x00007ffff3d14301 in () at /usr/lib/libjack.so.0 #3 0x00007ffff3d14136 in () at /usr/lib/libjack.so.0 #4 0x00007ffff3d0df51 in () at /usr/lib/libjack.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 52 (Thread 0x7fffe17fa640 (LWP 10548) "audioengine"): #0 0x00007ffff5712119 in () at /usr/lib/libc.so.6 #1 0x00007ffff5714920 in pthread_cond_wait () at /usr/lib/libc.so.6 #2 0x00007ffff3d0eaa4 in () at /usr/lib/libjack.so.0 #3 0x00007ffff3d02a6e in () at /usr/lib/libjack.so.0 #4 0x00007ffff3d0df51 in () at /usr/lib/libjack.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 51 (Thread 0x7fffe2ffd640 (LWP 10547) "pool-ardour-6.9"): #0 0x00007ffff579467d in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff6f8185f in g_cond_wait_until () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff6effa83 in () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff6effc38 in g_async_queue_timeout_pop () at /usr/lib/libglib-2.0.so.0 #4 0x00007ffff6f63e8a in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #6 0x00007ffff571554d in () at /usr/lib/libc.so.6 #7 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 16 (Thread 0x7fffe8b45640 (LWP 10512) "gdbus"): #0 0x00007ffff578efaf in poll () at /usr/lib/libc.so.6 #1 0x00007ffff6f87976 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff6f306a3 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff4c9a6dc in () at /usr/lib/libgio-2.0.so.0 #4 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 15 (Thread 0x7fffe9346640 (LWP 10511) "gmain"): #0 0x00007ffff578efaf in poll () at /usr/lib/libc.so.6 #1 0x00007ffff6f87976 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff6f2e6c5 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff6f2e712 in () at /usr/lib/libglib-2.0.so.0 #4 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 8 (Thread 0x7fffea4bd640 (LWP 10504) "DeviceList"): #0 0x00007ffff579467d in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff6f81345 in g_cond_wait () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff77e579c in ARDOUR::AudioEngine::do_devicelist_update() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff70cb1ba in () at /usr/lib/libglibmm-2.4.so.1 #4 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 7 (Thread 0x7fffeaffd640 (LWP 10503) "EngineWatchdog"): #0 0x00007ffff579467d in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff6f81345 in g_cond_wait () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff77e6b10 in ARDOUR::AudioEngine::do_reset_backend() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff70cb1ba in () at /usr/lib/libglibmm-2.4.so.1 #4 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 5 (Thread 0x7fffeb7fe640 (LWP 10501) "Analyzer"): #0 0x00007ffff579467d in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff6f81345 in g_cond_wait () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff77c8060 in ARDOUR::Analyser::work() () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff70cb1ba in () at /usr/lib/libglibmm-2.4.so.1 #4 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 4 (Thread 0x7fffe3fff640 (LWP 10500) "PeakFileBuilder"): #0 0x00007ffff579467d in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff6f81345 in g_cond_wait () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff7c2c280 in () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff70cb1ba in () at /usr/lib/libglibmm-2.4.so.1 #4 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 3 (Thread 0x7fffebfff640 (LWP 10499) "PeakFileBuilder"): #0 0x00007ffff579467d in syscall () at /usr/lib/libc.so.6 #1 0x00007ffff6f81345 in g_cond_wait () at /usr/lib/libglib-2.0.so.0 #2 0x00007ffff7c2c280 in () at /usr/lib/ardour6/libardour.so.3 #3 0x00007ffff70cb1ba in () at /usr/lib/libglibmm-2.4.so.1 #4 0x00007ffff6f60da5 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007ffff571554d in () at /usr/lib/libc.so.6 #6 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 2 (Thread 0x7ffff0d25640 (LWP 10498) "LXVSTEventLoop"): #0 0x00007ffff5761625 in clock_nanosleep () at /usr/lib/libc.so.6 #1 0x00007ffff57661e7 in nanosleep () at /usr/lib/libc.so.6 #2 0x00007ffff6f5c289 in g_usleep () at /usr/lib/libglib-2.0.so.0 #3 0x00005555560d2624 in () #4 0x00007ffff571554d in () at /usr/lib/libc.so.6 #5 0x00007ffff579ab14 in clone () at /usr/lib/libc.so.6 Thread 1 (Thread 0x7ffff1067a00 (LWP 10497) "ArdourGUI"): #0 0x00007ffff5712119 in () at /usr/lib/libc.so.6 #1 0x00007ffff5717113 in () at /usr/lib/libc.so.6 #2 0x00007ffff3d0e326 in () at /usr/lib/libjack.so.0 #3 0x00007ffff3cee23c in () at /usr/lib/libjack.so.0 #4 0x00007ffff3ced149 in () at /usr/lib/libjack.so.0 #5 0x00007ffff3d11d75 in jack_client_close () at /usr/lib/libjack.so.0 #6 0x00007fffe9bc5e70 in ARDOUR::JackConnection::close() () at /usr/lib/ardour6/backends/libjack_audiobackend.so #7 0x00007fffe9bc623b in ARDOUR::JACKAudioBackend::stop() () at /usr/lib/ardour6/backends/libjack_audiobackend.so #8 0x00007ffff77e64ee in ARDOUR::AudioEngine::stop(bool) () at /usr/lib/ardour6/libardour.so.3 #9 0x00005555559b87f7 in () #10 0x00005555559ee138 in () #11 0x00007ffff70cf9e6 in () at /usr/lib/libglibmm-2.4.so.1 #12 0x00007ffff6f31163 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0 #13 0x00007ffff6f879e9 in () at /usr/lib/libglib-2.0.so.0 #14 0x00007ffff6f306a3 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0 #15 0x00007ffff6baa9fe in gtk_main () at /usr/lib/libgtk-x11-2.0.so.0 #16 0x00007ffff7251d5d in Gtkmm2ext::UI::run(Receiver&) () at /usr/lib/ardour6/libgtkmm2ext.so.0 #17 0x000055555597b8f3 in main ()