Thread 25 (Thread 0x7fbca01ff800 (LWP 7068)):
#0  0x00007fbcc5f9d12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbcce2213b4 in CrossThreadChannel::poll_for_request() () from /opt/Ardour-4.4.0/lib/libpbd.so.4
#2  0x00007fbcce22141a in CrossThreadChannel::receive(char&, bool) () from /opt/Ardour-4.4.0/lib/libpbd.so.4
#3  0x00007fbccedc6971 in ARDOUR::Butler::thread_work() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#4  0x00007fbccedc703f in ARDOUR::Butler::_thread_work(void*) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbcce239350 in ?? () from /opt/Ardour-4.4.0/lib/libpbd.so.4
#6  0x00007fbcc8f1d182 in start_thread (arg=0x7fbca01ff800) at pthread_create.c:312
#7  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 24 (Thread 0x7fbcb33e8700 (LWP 7047)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbccd157524 in g_cond_wait () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbcced7920b in ARDOUR::AudioEngine::do_devicelist_update() ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcb33e8700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 23 (Thread 0x7fbcb152e700 (LWP 7056)):

#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbcb229a04c in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fbcb2290d88 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fbcb2298c40 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcb152e700) at pthread_create.c:312
#5  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 22 (Thread 0x7fbcc0cef700 (LWP 7045)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbccd157524 in g_cond_wait () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbcced3d963 in ARDOUR::Analyser::work() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcc0cef700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 21 (Thread 0x7fbcb142c700 (LWP 7053)):
#0  0x00007fbcc5f9d12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbccd10baa5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbccd10bcc7 in g_main_context_iteration () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#3  0x00007fbccd10bd19 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcb142c700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 20 (Thread 0x7fbc42df9700 (LWP 7078)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbccd157524 in g_cond_wait () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbccf9d927f in ArdourCanvas::WaveView::drawing_thread() () from /opt/Ardour-4.4.0/lib/libcanvas.so.0
#3  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbc42df9700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 19 (Thread 0x7fbcc1cf1700 (LWP 7043)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbccd157524 in g_cond_wait () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbccf09afbb in ?? () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcc1cf1700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 18 (Thread 0x7fbcc24f2700 (LWP 7042)):

#0  0x00007fbcc8f24b9d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbccd138298 in g_usleep () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x0000000000be5493 in ?? ()
#3  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcc24f2700) at pthread_create.c:312
#4  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 17 (Thread 0x7fbcb3be9700 (LWP 7046)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbccd157524 in g_cond_wait () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbcced7b4ad in ARDOUR::AudioEngine::do_reset_backend() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcb3be9700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 16 (Thread 0x7fbc43dfb700 (LWP 7075)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbccf04d463 in ARDOUR::Session::emit_thread_run() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#2  0x00007fbccf04d489 in ARDOUR::Session::emit_thread(void*) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbcc8f1d182 in start_thread (arg=0x7fbc43dfb700) at pthread_create.c:312
#4  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 15 (Thread 0x7fbcb14ad700 (LWP 7057)):
#0  0x00007fbcc8f243bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbcb229a854 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fbcb229d4ac in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fbcb2298c40 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcb14ad700) at pthread_create.c:312
#5  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7fbca0e09700 (LWP 7069)):
#0  0x00007fbcc5f9d12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbccd10baa5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbccd10bbb5 in g_main_loop_run () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#3  0x00007fbcce214f7c in BaseUI::main_thread() () from /opt/Ardour-4.4.0/lib/libpbd.so.4
#4  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#5  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#6  0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0e09700) at pthread_create.c:312
#7  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7fbc435fa700 (LWP 7076)):
#0  0x00007fbcc8f24b9d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbccd138298 in g_usleep () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbccedb928f in ARDOUR::AutomationWatch::thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbc435fa700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7fbcc14f0700 (LWP 7044)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbccd157524 in g_cond_wait () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#2  0x00007fbccf09afbb in ?? () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccd695b72 in ?? () from /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1
#4  0x00007fbccd1367f5 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbcc14f0700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7fbccffee900 (LWP 7036)):
#0  0x00007fbccf718126 in Gtkmm2ext::PixFader::render(_cairo*, _cairo_rectangle*) ()
   from /opt/Ardour-4.4.0/lib/libgtkmm2ext.so.0
#1  0x00007fbccf6ee972 in CairoWidget::on_expose_event(_GdkEventExpose*) ()
   from /opt/Ardour-4.4.0/lib/libgtkmm2ext.so.0
#2  0x00007fbcca640bd3 in Gtk::Widget_Class::expose_event_callback(_GtkWidget*, _GdkEventExpose*) ()
   from /opt/Ardour-4.4.0/lib/libgtkmm-2.4.so.1
#3  0x00007fbccc578f38 in ?? () from /opt/Ardour-4.4.0/lib/libgtk-x11-2.0.so.0
#4  0x00007fbccd40e1e2 in g_closure_invoke () from /opt/Ardour-4.4.0/lib/libgobject-2.0.so.0
#5  0x00007fbccd425272 in ?? () from /opt/Ardour-4.4.0/lib/libgobject-2.0.so.0
#6  0x00007fbccd425f98 in g_signal_emit_valist () from /opt/Ardour-4.4.0/lib/libgobject-2.0.so.0
#7  0x00007fbccd4267e3 in g_signal_emit () from /opt/Ardour-4.4.0/lib/libgobject-2.0.so.0
#8  0x00007fbccc6cfd8f in ?? () from /opt/Ardour-4.4.0/lib/libgtk-x11-2.0.so.0
#9  0x00007fbccc573027 in gtk_main_do_event () from /opt/Ardour-4.4.0/lib/libgtk-x11-2.0.so.0
#10 0x00007fbccc196782 in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#11 0x00007fbccc19672f in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#12 0x00007fbccc19672f in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#13 0x00007fbccc19672f in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#14 0x00007fbccc19672f in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#15 0x00007fbccc18f554 in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#16 0x00007fbccc18f8b9 in gdk_window_process_all_updates () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#17 0x00007fbccc18f929 in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#18 0x00007fbccc15cde6 in ?? () from /opt/Ardour-4.4.0/lib/libgdk-x11-2.0.so.0
#19 0x00007fbccd109c95 in g_main_context_dispatch () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#20 0x00007fbccd10bb08 in ?? () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#21 0x00007fbccd10bbb5 in g_main_loop_run () from /opt/Ardour-4.4.0/lib/libglib-2.0.so.0
#22 0x00007fbccc572657 in gtk_main () from /opt/Ardour-4.4.0/lib/libgtk-x11-2.0.so.0
#23 0x00007fbccf6f9ac4 in Gtkmm2ext::UI::run(Receiver&) () from /opt/Ardour-4.4.0/lib/libgtkmm2ext.so.0
#24 0x00000000007f45fa in ?? ()
#25 0x00007fbcc5ed1ec5 in __libc_start_main (main=0x7f3c80, argc=1, argv=0x7fffda7495e8, init=<optimized out>, 
 fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffda7495d8) at libc-start.c:287
#26 0x000000000048b9f9 in ?? ()
#27 0x00007fffda7495d8 in ?? ()
#28 0x000000000000001c in ?? ()
#29 0x0000000000000001 in ?? ()
#30 0x00007fffda74a380 in ?? ()
#31 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7fbca160a700 (LWP 7072)):
#0  0x00007fbcc5fa1da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbc7150d31d in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#2  0x00007fbc7150d68f in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#3  0x00007fbc714cf237 in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#4  0x00007fbc71503764 in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#5  0x00007fbc71503999 in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#6  0x00007fbcc8f1d182 in start_thread (arg=0x7fbca160a700) at pthread_create.c:312
#7  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7fbc71476700 (LWP 7073)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:193
#1  0x00007fbc714e6fe4 in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#2  0x00007fbc7150ced5 in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#3  0x00007fbc71503764 in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#4  0x00007fbc71503999 in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbc71476700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7fbca0506700 (LWP 7062)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1  0x00007fbccee6891f in ARDOUR::Graph::run_one() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#2  0x00007fbccee689e8 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x0000000000850063 in boost::function0<void>::operator()() const ()
#4  0x00007fbcb29cb2d9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#5  0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0506700) at pthread_create.c:312
#6  0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7fbca0608700 (LWP 7058)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1  0x00007fbccee687aa in ARDOUR::Graph::process_routes(unsigned int, long, long, int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#2  0x00007fbccf04a5db in ARDOUR::Session::process_routes(unsigned int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccf04bf44 in ARDOUR::Session::process_without_events(unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#4  0x00007fbccf04c4ba in ARDOUR::Session::process_with_events(unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbccf04d512 in ARDOUR::Session::process(unsigned int) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#6  0x00007fbcced7b7a7 in ARDOUR::AudioEngine::process_callback(unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#7  0x00007fbcb29caafd in ARDOUR::JACKAudioBackend::process_thread() ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#8  0x00007fbcb227c98a in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#9  0x00007fbcb2298c40 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#10 0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0608700) at pthread_create.c:312
#11 0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fbca0485700 (LWP 7063)):
#0  0x00007fbc85b3b5c0 in ?? () from /usr/lib/lv2/fil4.lv2/fil4.so
#1  0x00007fbccf0c9a58 in ARDOUR::LV2Plugin::run(unsigned int) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#2  0x00007fbccf0d5e80 in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccef4be11 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#4  0x00007fbccef4c470 in ARDOUR::PluginInsert::automation_run(ARDOUR::BufferSet&, long, unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbccef4c647 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#6  0x00007fbccefb1fce in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#7  0x00007fbcced6ab30 in ARDOUR::AudioTrack::roll(unsigned int, long, long, int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#8  0x00007fbccee685f3 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#9  0x00007fbccee68963 in ARDOUR::Graph::run_one() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#10 0x00007fbccee689e8 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#11 0x0000000000850063 in boost::function0<void>::operator()() const ()
#12 0x00007fbcb29cb2d9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#13 0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0485700) at pthread_create.c:312
#14 0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fbca0587700 (LWP 7061)):
#0  0x00007fbc85b3b612 in ?? () from /usr/lib/lv2/fil4.lv2/fil4.so
#1  0x00007fbccf0c9a58 in ARDOUR::LV2Plugin::run(unsigned int) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#2  0x00007fbccf0d5e80 in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccef4be11 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#4  0x00007fbccef4c470 in ARDOUR::PluginInsert::automation_run(ARDOUR::BufferSet&, long, unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbccef4c647 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#6  0x00007fbccefb1fce in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#7  0x00007fbcced6ab30 in ARDOUR::AudioTrack::roll(unsigned int, long, long, int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#8  0x00007fbccee685f3 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#9  0x00007fbccee68963 in ARDOUR::Graph::run_one() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#10 0x00007fbccee68c41 in ARDOUR::Graph::main_thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#11 0x0000000000850063 in boost::function0<void>::operator()() const ()
#12 0x00007fbcb29cb2d9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#13 0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0587700) at pthread_create.c:312
#14 0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fbca0281700 (LWP 7067)):
#0  0x00007fbc714b773c in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#1  0x00007fbc714c328d in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#2  0x00007fbc714d36bd in ?? () from /usr/lib/lv2/TAL-NoiseMaker.lv2/TAL-NoiseMaker.so
#3  0x00007fbccf0c9a58 in ARDOUR::LV2Plugin::run(unsigned int) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#4  0x00007fbccf0d5e80 in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbccef4be11 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#6  0x00007fbccef4c470 in ARDOUR::PluginInsert::automation_run(ARDOUR::BufferSet&, long, unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#7  0x00007fbccef4c647 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#8  0x00007fbccefb1fce in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#9  0x00007fbcceef4369 in ARDOUR::MidiTrack::roll(unsigned int, long, long, int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#10 0x00007fbccee685f3 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#11 0x00007fbccee68963 in ARDOUR::Graph::run_one() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#12 0x00007fbccee689e8 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#13 0x0000000000850063 in boost::function0<void>::operator()() const ()
#14 0x00007fbcb29cb2d9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#15 0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0281700) at pthread_create.c:312
#16 0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fbca0383700 (LWP 7065)):
#0  0x00007fbc84ad6c60 in void dsp::multichorus<float, dsp::sine_multi_lfo<float, 8u>, dsp::filter_sum<dsp::biquad_d2, dsp::biquad_d2>, 4096>::process<float*, float*>(float*, float*, int) ()
   from /usr/lib/lv2/calf.lv2/calf.so
#1  0x00007fbc84ad2999 in calf_plugins::multichorus_audio_module::process(unsigned int, unsigned int, unsigned int, unsigned int) () from /usr/lib/lv2/calf.lv2/calf.so
#2  0x00007fbc84ad505d in calf_plugins::audio_module<calf_plugins::multichorus_metadata>::process_slice(unsigned int, unsigned int) () from /usr/lib/lv2/calf.lv2/calf.so
#3  0x00007fbc84b09290 in calf_plugins::lv2_wrapper<calf_plugins::multichorus_audio_module>::cb_run(void*, unsigned int) () from /usr/lib/lv2/calf.lv2/calf.so
#4  0x00007fbccf0c9a58 in ARDOUR::LV2Plugin::run(unsigned int) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbccf0d5e80 in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#6  0x00007fbccef4be11 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#7  0x00007fbccef4c470 in ARDOUR::PluginInsert::automation_run(ARDOUR::BufferSet&, long, unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#8  0x00007fbccef4c647 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#9  0x00007fbccefb1fce in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#10 0x00007fbccefaedcc in ARDOUR::Route::passthru(ARDOUR::BufferSet&, long, long, unsigned int, int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#11 0x00007fbccefb0f02 in ARDOUR::Route::roll(unsigned int, long, long, int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#12 0x00007fbccee685f3 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#13 0x00007fbccee68963 in ARDOUR::Graph::run_one() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#14 0x00007fbccee689e8 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#15 0x0000000000850063 in boost::function0<void>::operator()() const ()
#16 0x00007fbcb29cb2d9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#17 0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0383700) at pthread_create.c:312
#18 0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fbca0302700 (LWP 7066)):
#0  0x00007fbcc67ee15a in __dynamic_cast () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#1  0x000000000055623a in boost::shared_ptr<ARDOUR::AutomationList> boost::dynamic_pointer_cast<ARDOUR::AutomationList, Evoral::ControlList>(boost::shared_ptr<Evoral::ControlList> const&) ()
#2  0x00007fbcced36382 in ARDOUR::Amp::setup_gain_automation(long, long, long) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccefb21d4 in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#4  0x00007fbccefaedcc in ARDOUR::Route::passthru(ARDOUR::BufferSet&, long, long, unsigned int, int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbccefb0f02 in ARDOUR::Route::roll(unsigned int, long, long, int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#6  0x00007fbccee685f3 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#7  0x00007fbccee68963 in ARDOUR::Graph::run_one() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#8  0x00007fbccee689e8 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#9  0x0000000000850063 in boost::function0<void>::operator()() const ()
#10 0x00007fbcb29cb2d9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#11 0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0302700) at pthread_create.c:312
#12 0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fbca0404700 (LWP 7064)):
#0  0x00007fbccf0d515e in ARDOUR::LV2Plugin::connect_and_run(ARDOUR::BufferSet&, ARDOUR::ChanMapping, ARDOUR::ChanMapping, unsigned int, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#1  0x00007fbccef4be11 in ARDOUR::PluginInsert::connect_and_run(ARDOUR::BufferSet&, unsigned int, long, bool, long) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#2  0x00007fbccef4c470 in ARDOUR::PluginInsert::automation_run(ARDOUR::BufferSet&, long, unsigned int) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#3  0x00007fbccef4c647 in ARDOUR::PluginInsert::run(ARDOUR::BufferSet&, long, long, unsigned int, bool) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#4  0x00007fbccefb1fce in ARDOUR::Route::process_output_buffers(ARDOUR::BufferSet&, long, long, unsigned int, int, bool) () from /opt/Ardour-4.4.0/lib/libardour.so.3
#5  0x00007fbcceef4369 in ARDOUR::MidiTrack::roll(unsigned int, long, long, int, bool&) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#6  0x00007fbccee685f3 in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /opt/Ardour-4.4.0/lib/libardour.so.3
#7  0x00007fbccee68963 in ARDOUR::Graph::run_one() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#8  0x00007fbccee689e8 in ARDOUR::Graph::helper_thread() () from /opt/Ardour-4.4.0/lib/libardour.so.3
#9  0x0000000000850063 in boost::function0<void>::operator()() const ()
#10 0x00007fbcb29cb2d9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
   from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so
#11 0x00007fbcc8f1d182 in start_thread (arg=0x7fbca0404700) at pthread_create.c:312
#12 0x00007fbcc5faa47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111