The program 'ardour-4.6.22' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 41 error_code 8 request_code 42 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
[Thread 0x7fffd2b57700 (LWP 10197) exited]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffd1d13700 (LWP 10192)]
0x00007fffeee29bc1 in ?? () from /opt/ardour4/lib/liblilv-0.so.0
(gdb) Did not receive ping message from server for 30 secs, closing...

(gdb) thread apply all bt

Thread 53 (Thread 0x7fff7bff7700 (LWP 10407)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedcd5dd4 in sleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff9869ec1a in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 52 (Thread 0x7fffd0b53700 (LWP 10386)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 51 (Thread 0x7fff7c7f8700 (LWP 10358)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 50 (Thread 0x7fff7cff9700 (LWP 10357)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 49 (Thread 0x7fff7d7fa700 (LWP 10356)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6
Thread 48 (Thread 0x7fff7dffb700 (LWP 10355)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 47 (Thread 0x7fff7e7fc700 (LWP 10354)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 46 (Thread 0x7fff7effd700 (LWP 10353)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 45 (Thread 0x7fff7f7fe700 (LWP 10352)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 44 (Thread 0x7fff7ffff700 (LWP 10351)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 43 (Thread 0x7fff88ff9700 (LWP 10348)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 42 (Thread 0x7fff897fa700 (LWP 10347)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 41 (Thread 0x7fff89ffb700 (LWP 10346)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 40 (Thread 0x7fff8a7fc700 (LWP 10345)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 39 (Thread 0x7fff8affd700 (LWP 10342)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 38 (Thread 0x7fff8b7fe700 (LWP 10341)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 37 (Thread 0x7fff8bfff700 (LWP 10340)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 36 (Thread 0x7fffc8a8a700 (LWP 10339)):
#0  0x00007fffedcd5f3d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffedd074a4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fff98684065 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#3  0x00007fff9863fe3b in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 33 (Thread 0x7fff90b6b700 (LWP 10206)):
#0  0x00007ffff0c99b9d in nanosleep ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50b4298 in g_usleep () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff6d6b04f in ARDOUR::AutomationWatch::thread() ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff5611b72 in ?? () from /opt/ardour4/lib/libglibmm-2.4.so.1
#4  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#5  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 32 (Thread 0x7fffd1354700 (LWP 10205)):
#0  0x00007ffff0c96414 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff700a213 in ARDOUR::Session::emit_thread_run() ()
   from /opt/ardour4/lib/libardour.so.3
#2  0x00007ffff700a239 in ARDOUR::Session::emit_thread(void*) ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 29 (Thread 0x7fffc928b700 (LWP 10196)):
#0  0x00007fffedd0212d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff5087aa5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff5087bb5 in g_main_loop_run ()
   from /opt/ardour4/lib/libglib-2.0.so.0
#3  0x00007ffff61b591c in BaseUI::main_thread() ()
   from /opt/ardour4/lib/libpbd.so.4
#4  0x00007ffff5611b72 in ?? () from /opt/ardour4/lib/libglibmm-2.4.so.1
#5  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#6  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 28 (Thread 0x7fffbdc5e800 (LWP 10195)):
#0  0x00007fffedd0212d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff61c1e44 in CrossThreadChannel::poll_for_request() ()
   from /opt/ardour4/lib/libpbd.so.4
#2  0x00007ffff61c1eaa in CrossThreadChannel::receive(char&, bool) ()
   from /opt/ardour4/lib/libpbd.so.4
#3  0x00007ffff6d78731 in ARDOUR::Butler::thread_work() ()
   from /opt/ardour4/lib/libardour.so.3
#4  0x00007ffff6d78dff in ARDOUR::Butler::_thread_work(void*) ()
   from /opt/ardour4/lib/libardour.so.3
#5  0x00007ffff61dc830 in ?? () from /opt/ardour4/lib/libpbd.so.4
#6  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 27 (Thread 0x7fffd1d13700 (LWP 10192)):
#0  0x00007fffeee29bc1 in ?? () from /opt/ardour4/lib/liblilv-0.so.0
#1  0x00007fffeee2a0d9 in lilv_plugin_get_num_ports ()
   from /opt/ardour4/lib/liblilv-0.so.0
#2  0x00007ffff7090c90 in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff6f032a1 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/ardour4/lib/libardour.so.3
#4  0x00007ffff6f03b29 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) () from /opt/ardour4/lib/libardour.so.3
#5  0x00007ffff6f6c78e in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) ()
   from /opt/ardour4/lib/libardour.so.3
#6  0x00007ffff6f6724e in ARDOUR::Route::passthru(ARDOUR::BufferSet&, long, long, unsigned int, int) () from /opt/ardour4/lib/libardour.so.3
#7  0x00007ffff7074724 in ARDOUR::Track::no_roll(unsigned int, long, long, bool) () from /opt/ardour4/lib/libardour.so.3
#8  0x00007ffff6eacbbc in ARDOUR::MidiTrack::no_roll(unsigned int, long, long, bool) () from /opt/ardour4/lib/libardour.so.3
#9  0x00007ffff6e1c9a0 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/ardour4/lib/libardour.so.3
#10 0x00007ffff6e1ccb3 in ARDOUR::Graph::run_one() ()
   from /opt/ardour4/lib/libardour.so.3
#11 0x00007ffff6e1cd38 in ARDOUR::Graph::helper_thread() ()
   from /opt/ardour4/lib/libardour.so.3
#12 0x00000000008523a3 in boost::function0<void>::operator()() const ()
#13 0x00007fffd9758729 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/ardour4/lib/backends/libjack_audiobackend.so
#14 0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#15 0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 26 (Thread 0x7fffd1d94700 (LWP 10191)):
#0  0x00007fffeee29bc1 in ?? () from /opt/ardour4/lib/liblilv-0.so.0
#1  0x00007fffeee2a0d9 in lilv_plugin_get_num_ports ()
   from /opt/ardour4/lib/liblilv-0.so.0
#2  0x00007ffff7090c90 in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff6f032a1 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/ardour4/lib/libardour.so.3
#4  0x00007ffff6f03b29 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) () from /opt/ardour4/lib/libardour.so.3
#5  0x00007ffff6f6c78e in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) ()
   from /opt/ardour4/lib/libardour.so.3
#6  0x00007ffff6f6724e in ARDOUR::Route::passthru(ARDOUR::BufferSet&, long, long, unsigned int, int) () from /opt/ardour4/lib/libardour.so.3
#7  0x00007ffff7074724 in ARDOUR::Track::no_roll(unsigned int, long, long, bool) () from /opt/ardour4/lib/libardour.so.3
#8  0x00007ffff6eacbbc in ARDOUR::MidiTrack::no_roll(unsigned int, long, long, bool) () from /opt/ardour4/lib/libardour.so.3
#9  0x00007ffff6e1c9a0 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/ardour4/lib/libardour.so.3
#10 0x00007ffff6e1ccb3 in ARDOUR::Graph::run_one() ()
   from /opt/ardour4/lib/libardour.so.3
#11 0x00007ffff6e1cd38 in ARDOUR::Graph::helper_thread() ()
   from /opt/ardour4/lib/libardour.so.3
#12 0x00000000008523a3 in boost::function0<void>::operator()() const ()
#13 0x00007fffd9758729 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/ardour4/lib/backends/libjack_audiobackend.so
#14 0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#15 0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 25 (Thread 0x7fffd1e15700 (LWP 10190)):
#0  0x00007fffeee29bc1 in ?? () from /opt/ardour4/lib/liblilv-0.so.0
#1  0x00007fffeee2a0d9 in lilv_plugin_get_num_ports ()
   from /opt/ardour4/lib/liblilv-0.so.0
#2  0x00007ffff7090c90 in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff6f032a1 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/ardour4/lib/libardour.so.3
#4  0x00007ffff6f03b29 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) () from /opt/ardour4/lib/libardour.so.3
#5  0x00007ffff6f6c78e in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) ()
   from /opt/ardour4/lib/libardour.so.3
#6  0x00007ffff6f6724e in ARDOUR::Route::passthru(ARDOUR::BufferSet&, long, long, unsigned int, int) () from /opt/ardour4/lib/libardour.so.3
#7  0x00007ffff7074724 in ARDOUR::Track::no_roll(unsigned int, long, long, bool) () from /opt/ardour4/lib/libardour.so.3
#8  0x00007ffff6eacbbc in ARDOUR::MidiTrack::no_roll(unsigned int, long, long, b--
ool) () from /opt/ardour4/lib/libardour.so.3
#9  0x00007ffff6e1c9a0 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/ardour4/lib/libardour.so.3
#10 0x00007ffff6e1ccb3 in ARDOUR::Graph::run_one() ()
   from /opt/ardour4/lib/libardour.so.3
#11 0x00007ffff6e1cf91 in ARDOUR::Graph::main_thread() ()
   from /opt/ardour4/lib/libardour.so.3
#12 0x00000000008523a3 in boost::function0<void>::operator()() const ()
#13 0x00007fffd9758729 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /opt/ardour4/lib/backends/libjack_audiobackend.so
#14 0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#15 0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7fffd2252700 (LWP 10187)):
#0  0x00007ffff0c98680 in sem_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff6e1ca81 in ARDOUR::Graph::routes_no_roll(unsigned int, long, long, bool, int) () from /opt/ardour4/lib/libardour.so.3
#2  0x00007ffff7008281 in ARDOUR::Session::no_roll(unsigned int) ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff7008cb4 in ARDOUR::Session::process_without_events(unsigned int)
    () from /opt/ardour4/lib/libardour.so.3
#4  0x00007ffff700926a in ARDOUR::Session::process_with_events(unsigned int) ()
   from /opt/ardour4/lib/libardour.so.3
#5  0x00007ffff700a2c2 in ARDOUR::Session::process(unsigned int) ()
   from /opt/ardour4/lib/libardour.so.3
#6  0x00007ffff6d2cee5 in ARDOUR::AudioEngine::process_callback(unsigned int)
    () from /opt/ardour4/lib/libardour.so.3
#7  0x00007fffd9757f4d in ARDOUR::JACKAudioBackend::process_thread() ()
   from /opt/ardour4/lib/backends/libjack_audiobackend.so
#8  0x00007fffd950098a in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#9  0x00007fffd951cc40 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#10 0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7fffd8098700 (LWP 10186)):
#0  0x00007ffff0c993bd in read () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffd951e854 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd95214ac in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd951cc40 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6
Thread 21 (Thread 0x7fffd8812700 (LWP 10185)):
#0  0x00007ffff0c96414 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffd951e04c in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd9514d88 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd951cc40 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7fffd376e700 (LWP 10171)):
#0  0x00007fffedd0212d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff5087aa5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff5087cc7 in g_main_context_iteration ()
   from /opt/ardour4/lib/libglib-2.0.so.0
#3  0x00007ffff5087d19 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#4  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#5  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7fffda8ac700 (LWP 10102)):
#0  0x00007ffff0c96414 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50d3524 in g_cond_wait () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff6d2ac1b in ARDOUR::AudioEngine::do_devicelist_update() ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff5611b72 in ?? () from /opt/ardour4/lib/libglibmm-2.4.so.1
#4  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#5  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fffdb0ad700 (LWP 10101)):
#0  0x00007ffff0c96414 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50d3524 in g_cond_wait () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff6d2cbed in ARDOUR::AudioEngine::do_reset_backend() ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff5611b72 in ?? () from /opt/ardour4/lib/libglibmm-2.4.so.1
#4  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#5  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fffe8bc2700 (LWP 10100)):
#0  0x00007ffff0c96414 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50d3524 in g_cond_wait () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff6ceef0b in ARDOUR::Analyser::work() ()
   from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff5611b72 in ?? () from /opt/ardour4/lib/libglibmm-2.4.so.1
#4  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#5  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fffe93c3700 (LWP 10099)):
#0  0x00007ffff0c96414 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50d3524 in g_cond_wait () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff70584fb in ?? () from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff5611b72 in ?? () from /opt/ardour4/lib/libglibmm-2.4.so.1
#4  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#5  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fffe9bc4700 (LWP 10098)):
#0  0x00007ffff0c96414 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50d3524 in g_cond_wait () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x00007ffff70584fb in ?? () from /opt/ardour4/lib/libardour.so.3
#3  0x00007ffff5611b72 in ?? () from /opt/ardour4/lib/libglibmm-2.4.so.1
#4  0x00007ffff50b27f5 in ?? () from /opt/ardour4/lib/libglib-2.0.so.0
#5  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fffea3c5700 (LWP 10097)):
#0  0x00007ffff0c99b9d in nanosleep ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ffff50b4298 in g_usleep () from /opt/ardour4/lib/libglib-2.0.so.0
#2  0x0000000000c02693 in ?? ()
#3  0x00007ffff0c92182 in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fffedd0f47d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7ffff7fa7900 (LWP 10091)):
#0  0x00007fffeea14e7c in sord_iter_next ()
   from /opt/ardour4/lib/libsord-0.so.0
#1  0x00007fffeea159ee in sord_free () from /opt/ardour4/lib/libsord-0.so.0
#2  0x00007fffeee308a0 in lilv_world_free ()
   from /opt/ardour4/lib/liblilv-0.so.0
#3  0x00007ffff70869df in LV2World::~LV2World() ()
   from /opt/ardour4/lib/libardour.so.3
#4  0x00007fffedc515ea in __cxa_finalize ()
   from /lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff6ce67e6 in ?? () from /opt/ardour4/lib/libardour.so.3
#6  0x00007ffff7ff59e8 in ?? ()
#7  0x00007fff998b5b48 in ?? () from /usr/lib/lv2/carla.lv2/carla.so
#8  0x00007fffffffc940 in ?? ()
#9  0x00007ffff70a7fe1 in _fini () from /opt/ardour4/lib/libardour.so.3
#10 0x00007fffffffc940 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)