Thread 142 (Thread 0x7fff46ffd640 (LWP 1052284) "WaveViewDrawing"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7f34c42 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:322
#3  0x00007ffff7f34ba9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at ../libs/waveview/wave_view_private.cc:311
#4  0x00007ffff7f35125 in ArdourWaveView::WaveViewThreads::_thread_proc() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:500
#5  0x00007ffff7f350a7 in ArdourWaveView::WaveViewThreads::thread_proc() () at ../libs/waveview/wave_view_private.cc:414
#6  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x555566b6f758) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555566b6f750) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555566b6f720) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 141 (Thread 0x7fff477fe640 (LWP 1052283) "WaveViewDrawing"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7f34c42 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:322
#3  0x00007ffff7f34ba9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at ../libs/waveview/wave_view_private.cc:311
#4  0x00007ffff7f35125 in ArdourWaveView::WaveViewThreads::_thread_proc() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:500
#5  0x00007ffff7f350a7 in ArdourWaveView::WaveViewThreads::thread_proc() () at ../libs/waveview/wave_view_private.cc:414
#6  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x555566b6eec8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555566b6eec0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555566b6ee90) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 140 (Thread 0x7fff47fff640 (LWP 1052282) "WaveViewDrawing"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7f34c42 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:322
#3  0x00007ffff7f34ba9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at ../libs/waveview/wave_view_private.cc:311
#4  0x00007ffff7f35125 in ArdourWaveView::WaveViewThreads::_thread_proc() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:500
#5  0x00007ffff7f350a7 in ArdourWaveView::WaveViewThreads::thread_proc() () at ../libs/waveview/wave_view_private.cc:414
#6  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x555566b6f208) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555566b6f200) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555566b6f1d0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 139 (Thread 0x7fff5ca65640 (LWP 1052281) "WaveViewDrawing"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7f34c42 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:322
#3  0x00007ffff7f34ba9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at ../libs/waveview/wave_view_private.cc:311
#4  0x00007ffff7f35125 in ArdourWaveView::WaveViewThreads::_thread_proc() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:500
#5  0x00007ffff7f350a7 in ArdourWaveView::WaveViewThreads::thread_proc() () at ../libs/waveview/wave_view_private.cc:414
#6  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x555566b6ef38) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555566b6ef30) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555566b6ef00) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 138 (Thread 0x7fff5d266640 (LWP 1052280) "WaveViewDrawing"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7f34c42 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:322
#3  0x00007ffff7f34ba9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at ../libs/waveview/wave_view_private.cc:311
#4  0x00007ffff7f35125 in ArdourWaveView::WaveViewThreads::_thread_proc() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:500
#5  0x00007ffff7f350a7 in ArdourWaveView::WaveViewThreads::thread_proc() () at ../libs/waveview/wave_view_private.cc:414
#6  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x555566b6ec18) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555566b6ec10) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555566b6ebe0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 137 (Thread 0x7fff5da67640 (LWP 1052279) "WaveViewDrawing"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7f34c42 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:322
#3  0x00007ffff7f34ba9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at ../libs/waveview/wave_view_private.cc:311
#4  0x00007ffff7f35125 in ArdourWaveView::WaveViewThreads::_thread_proc() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:500
#5  0x00007ffff7f350a7 in ArdourWaveView::WaveViewThreads::thread_proc() () at ../libs/waveview/wave_view_private.cc:414
#6  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x555566b6eba8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555566b6eba0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555566b6eb70) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 136 (Thread 0x7fff5e268640 (LWP 1052278) "WaveViewDrawing"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7f34c42 in ArdourWaveView::WaveViewThreads::_dequeue_draw_request() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:322
#3  0x00007ffff7f34ba9 in ArdourWaveView::WaveViewThreads::dequeue_draw_request() () at ../libs/waveview/wave_view_private.cc:311
#4  0x00007ffff7f35125 in ArdourWaveView::WaveViewThreads::_thread_proc() (this=0x55555bbfd200) at ../libs/waveview/wave_view_private.cc:500
#5  0x00007ffff7f350a7 in ArdourWaveView::WaveViewThreads::thread_proc() () at ../libs/waveview/wave_view_private.cc:414
#6  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x555566b6d748) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#7  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x555566b6d740) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x555566b6d710) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 131 (Thread 0x7fff70ff9640 (LWP 1052273) "AutomationWatch"):
#0  0x00007ffff308da95 in clock_nanosleep@GLIBC_2.2.5 () at /usr/lib/libc.so.6
#1  0x00007ffff3092c77 in nanosleep () at /usr/lib/libc.so.6
#2  0x00007ffff53115f1 in g_usleep () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff703f5da in ARDOUR::AutomationWatch::thread() (this=0x55555d0a4bb0) at ../libs/ardour/automation_watch.cc:195
#4  0x00007ffff7045031 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator()(ARDOUR::AutomationWatch*) const (this=0x555559cd36a0, p=0x55555d0a4bb0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff7044c13 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>&, boost::_bi::list0&, int) (this=0x555559cd36b0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#6  0x00007ffff70443e8 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator()() (this=0x555559cd36a0) at /usr/include/boost/bind/bind.hpp:1272
#7  0x00007ffff704436a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator()() const (this=0x555559cd36a0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00007ffff7043d0f in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x555559cd3670) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#9  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#10 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 130 (Thread 0x7fff737fe640 (LWP 1052272) "autoconnect"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e94270 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#2  0x00007ffff76cc2cc in ARDOUR::Session::auto_connect_thread_run() (this=0x55555df03c00) at ../libs/ardour/session.cc:7184
#3  0x00007ffff76cbe2d in ARDOUR::Session::auto_connect_thread(void*) (arg=0x55555df03c00) at ../libs/ardour/session.cc:7115
#4  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 129 (Thread 0x7fff73fff640 (LWP 1052271) "SessionSignals"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e94270 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#2  0x00007ffff774ccd2 in ARDOUR::Session::emit_thread_run() (this=0x55555df03c00) at ../libs/ardour/session_process.cc:1123
#3  0x00007ffff774cc7b in ARDOUR::Session::emit_thread(void*) (arg=0x55555df03c00) at ../libs/ardour/session_process.cc:1112
#4  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 128 (Thread 0x7fffa0a6b640 (LWP 1052270) "PreSonus FaderP"):
#0  0x00007ffff3003d22 in raise () at /usr/lib/libc.so.6
#1  0x00007ffff2fed862 in abort () at /usr/lib/libc.so.6
#2  0x00007fffd2d1950e in ArdourSurface::FP2::FaderPort8::encoder_navigate(bool, int) (this=0x555558f2a940, neg=false, steps=1) at ../libs/surfaces/faderport8/actions.cc:652
#3  0x00007fffd2c99a2c in ArdourSurface::FP2::FaderPort8::controller_handler(MIDI::Parser&, MIDI::EventTwoBytes*) (this=0x555558f2a940, tb=0x55555a205701) at ../libs/surfaces/faderport8/faderport8.cc:610
#4  0x00007fffd2cdb846 in boost::_mfi::mf2<void, ArdourSurface::FP2::FaderPort8, MIDI::Parser&, MIDI::EventTwoBytes*>::operator()(ArdourSurface::FP2::FaderPort8*, MIDI::Parser&, MIDI::EventTwoBytes*) const (this=0x7fff64281a88, p=0x555558f2a940, a1=..., a2=0x55555a205701) at /usr/include/boost/bind/mem_fn_template.hpp:280
#5  0x00007fffd2cd4f91 in boost::_bi::list3<boost::_bi::value<ArdourSurface::FP2::FaderPort8*>, boost::arg<1>, boost::arg<2> >::operator()<boost::_mfi::mf2<void, ArdourSurface::FP2::FaderPort8, MIDI::Parser&, MIDI::EventTwoBytes*>, boost::_bi::rrlist2<MIDI::Parser&, MIDI::EventTwoBytes*> >(boost::_bi::type<void>, boost::_mfi::mf2<void, ArdourSurface::FP2::FaderPort8, MIDI::Parser&, MIDI::EventTwoBytes*>&, boost::_bi::rrlist2<MIDI::Parser&, MIDI::EventTwoBytes*>&, int) (this=0x7fff64281a98, f=..., a=...) at /usr/include/boost/bind/bind.hpp:376
#6  0x00007fffd2ccd565 in boost::_bi::bind_t<void, boost::_mfi::mf2<void, ArdourSurface::FP2::FaderPort8, MIDI::Parser&, MIDI::EventTwoBytes*>, boost::_bi::list3<boost::_bi::value<ArdourSurface::FP2::FaderPort8*>, boost::arg<1>, boost::arg<2> > >::operator()<MIDI::Parser&, MIDI::EventTwoBytes*>(MIDI::Parser&, MIDI::EventTwoBytes*&&) (this=0x7fff64281a88, a1=..., a2=@0x7fffa0a69e78: 0x55555a205701) at /usr/include/boost/bind/bind.hpp:1296
#7  0x00007fffd2cc6823 in boost::detail::function::void_function_obj_invoker2<boost::_bi::bind_t<void, boost::_mfi::mf2<void, ArdourSurface::FP2::FaderPort8, MIDI::Parser&, MIDI::EventTwoBytes*>, boost::_bi::list3<boost::_bi::value<ArdourSurface::FP2::FaderPort8*>, boost::arg<1>, boost::arg<2> > >, void, MIDI::Parser&, MIDI::EventTwoBytes*>::invoke(boost::detail::function::function_buffer&, MIDI::Parser&, MIDI::EventTwoBytes*) (function_obj_ptr=..., a0=..., a1=0x55555a205701) at /usr/include/boost/function/function_template.hpp:158
#8  0x00007ffff5fc2d79 in boost::function2<void, MIDI::Parser&, MIDI::EventTwoBytes*>::operator()(MIDI::Parser&, MIDI::EventTwoBytes*) const (this=0x7fff64281a80, a0=..., a1=0x55555a205701) at /usr/include/boost/function/function_template.hpp:763
#9  0x00007ffff5fc01b4 in PBD::Signal2<void, MIDI::Parser&, MIDI::EventTwoBytes*, PBD::OptionalLastValue<void> >::operator()(MIDI::Parser&, MIDI::EventTwoBytes*) (this=0x55555ad95da8, a1=..., a2=0x55555a205701) at libs/pbd/pbd/signals_generated.h:1080
#10 0x00007ffff5fbb9d3 in MIDI::Parser::signal(unsigned char*, unsigned long) (this=0x55555ad95bb0, msg=0x55555a205700 "\260<\001f\024\001\061\062\063\064\065\066\067F~\001k\367\226]UU", len=3) at ../libs/midi++2/parser.cc:704
#11 0x00007ffff5fbb21f in MIDI::Parser::scanner(unsigned char) (this=0x55555ad95bb0, inbyte=1 '\001') at ../libs/midi++2/parser.cc:513
#12 0x00007ffff6fa6994 in ARDOUR::AsyncMIDIPort::read(unsigned char*, unsigned long) (this=0x5555592e7070) at ../libs/ardour/async_midi_port.cc:336
#13 0x00007ffff6fa6a95 in ARDOUR::AsyncMIDIPort::parse(long) (this=0x5555592e7070) at ../libs/ardour/async_midi_port.cc:349
#14 0x00007fffd2c98dad in ArdourSurface::FP2::FaderPort8::midi_input_handler(Glib::IOCondition, boost::weak_ptr<ARDOUR::AsyncMIDIPort>) (this=0x555558f2a940, ioc=Glib::IO_IN, wport=...) at ../libs/surfaces/faderport8/faderport8.cc:530
#15 0x00007fffd2cdbe76 in sigc::bound_mem_functor2<bool, ArdourSurface::FP2::FaderPort8, Glib::IOCondition, boost::weak_ptr<ARDOUR::AsyncMIDIPort> >::operator()(Glib::IOCondition const&, boost::weak_ptr<ARDOUR::AsyncMIDIPort> const&) const (this=0x7fff6423d830, _A_a1=@0x7fffa0a6a28c: Glib::IO_IN, _A_a2=...) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:2143
#16 0x00007fffd2cd5dab in sigc::adaptor_functor<sigc::bound_mem_functor2<bool, ArdourSurface::FP2::FaderPort8, Glib::IOCondition, boost::weak_ptr<ARDOUR::AsyncMIDIPort> > >::operator()<Glib::IOCondition const&, boost::weak_ptr<ARDOUR::AsyncMIDIPort>&>(Glib::IOCondition const&, boost::weak_ptr<ARDOUR::AsyncMIDIPort>&) const (this=0x7fff6423d828, _A_arg1=@0x7fffa0a6a28c: Glib::IO_IN, _A_arg2=...) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:108
#17 0x00007fffd2cce715 in sigc::bind_functor<-1, sigc::bound_mem_functor2<bool, ArdourSurface::FP2::FaderPort8, Glib::IOCondition, boost::weak_ptr<ARDOUR::AsyncMIDIPort> >, boost::weak_ptr<ARDOUR::AsyncMIDIPort>, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<Glib::IOCondition const&>(Glib::IOCondition const&) (this=0x7fff6423d820, _A_arg1=@0x7fffa0a6a28c: Glib::IO_IN) at /usr/include/sigc++-2.0/sigc++/adaptors/bind.h:1136
#18 0x00007fffd2cc724a in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<bool, ArdourSurface::FP2::FaderPort8, Glib::IOCondition, boost::weak_ptr<ARDOUR::AsyncMIDIPort> >, boost::weak_ptr<ARDOUR::AsyncMIDIPort>, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, bool, Glib::IOCondition>::call_it(sigc::internal::slot_rep*, Glib::IOCondition const&) (rep=0x7fff6423d7f0, a_1=@0x7fffa0a6a28c: Glib::IO_IN) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:170
#19 0x00007ffff574d510 in sigc::slot1<bool, Glib::IOCondition>::operator()(Glib::IOCondition const&) const (this=0x5555592e7330, _A_a1=@0x7fffa0a6a28c: Glib::IO_IN) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:665
#20 0x00007ffff574d228 in cross_thread_channel_call_receive_slot(_GIOChannel*, GIOCondition, void*) (condition=G_IO_IN, data=0x5555592e7320) at ../libs/pbd/crossthread.cc:52
#21 0x00007ffff52e7f30 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#22 0x00007ffff533bb59 in  () at /usr/lib/libglib-2.0.so.0
#23 0x00007ffff52e7593 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#24 0x00007ffff5736159 in BaseUI::main_thread() (this=0x555558f2abf8) at ../libs/pbd/base_ui.cc:98
#25 0x00007ffff573aabe in sigc::bound_mem_functor0<void, BaseUI>::operator()() const (this=0x55555996a838) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1991
#26 0x00007ffff573a774 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const (this=0x55555996a830) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#27 0x00007ffff573a0a2 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55555996a800) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#28 0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#29 0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#30 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#31 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 110 (Thread 0x7fff72ffd640 (LWP 1052245) "midiUI"):
#0  0x00007ffff30bab2f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff533bae8 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff52e7593 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff5736159 in BaseUI::main_thread() (this=0x555558464f10) at ../libs/pbd/base_ui.cc:98
#4  0x00007ffff573aabe in sigc::bound_mem_functor0<void, BaseUI>::operator()() const (this=0x55555ce2d878) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1991
#5  0x00007ffff573a774 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const (this=0x55555ce2d870) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff573a0a2 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55555ce2d840) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#7  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#8  0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#9  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 109 (Thread 0x7fffc1aa9640 (LWP 1052244) "butler"):
#0  0x00007ffff30bab2f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff574d13b in CrossThreadChannel::poll_for_request() (this=0x55555a1090c8) at ../libs/pbd/crossthread.posix.cc:102
#2  0x00007ffff574d1b7 in CrossThreadChannel::receive(char&, bool) (this=0x55555a1090c8, msg=@0x7fffc1aa83a0: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:123
#3  0x00007ffff705693f in ARDOUR::Butler::thread_work() (this=0x55555a109030) at ../libs/ardour/butler.cc:185
#4  0x00007ffff70566ca in ARDOUR::Butler::_thread_work(void*) (arg=0x55555a109030) at ../libs/ardour/butler.cc:166
#5  0x00007ffff57726fa in fake_thread_start(void*) (arg=0x55555ac2fcc0) at ../libs/pbd/pthread_utils.cc:113
#6  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 92 (Thread 0x7fffa126c640 (LWP 1052227) "RT-6-0x7fffa126"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x555557964da0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff717f383 in ARDOUR::Graph::run_one() (this=0x555557964cf0) at ../libs/ardour/graph.cc:426
#4  0x00007ffff717f833 in ARDOUR::Graph::helper_thread() (this=0x555557964cf0) at ../libs/ardour/graph.cc:470
#5  0x00007ffff71862f5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffa126b518, p=0x555557964cf0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff7185ab1 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffa126b528, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#7  0x00007ffff7184f82 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffa126b518) at /usr/include/boost/bind/bind.hpp:1272
#8  0x00007ffff718471c in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:158
#9  0x0000555555be539d in boost::function0<void>::operator()() const (this=0x7fffa126b510) at /usr/include/boost/function/function_template.hpp:763
#10 0x00007fffd0692ea9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555df0aed0) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 91 (Thread 0x7fffa1a6d640 (LWP 1052226) "RT-5-0x7fffa1a6"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x555557964da0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff717f383 in ARDOUR::Graph::run_one() (this=0x555557964cf0) at ../libs/ardour/graph.cc:426
#4  0x00007ffff717f833 in ARDOUR::Graph::helper_thread() (this=0x555557964cf0) at ../libs/ardour/graph.cc:470
#5  0x00007ffff71862f5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffa1a6c518, p=0x555557964cf0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff7185ab1 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffa1a6c528, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#7  0x00007ffff7184f82 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffa1a6c518) at /usr/include/boost/bind/bind.hpp:1272
#8  0x00007ffff718471c in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:158
#9  0x0000555555be539d in boost::function0<void>::operator()() const (this=0x7fffa1a6c510) at /usr/include/boost/function/function_template.hpp:763
#10 0x00007fffd0692ea9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555df0ac70) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 90 (Thread 0x7fffa2a6f640 (LWP 1052225) "RT-4-0x7fffa2a6"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x555557964da0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff717f383 in ARDOUR::Graph::run_one() (this=0x555557964cf0) at ../libs/ardour/graph.cc:426
#4  0x00007ffff717f833 in ARDOUR::Graph::helper_thread() (this=0x555557964cf0) at ../libs/ardour/graph.cc:470
#5  0x00007ffff71862f5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffa2a6e518, p=0x555557964cf0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff7185ab1 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffa2a6e528, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#7  0x00007ffff7184f82 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffa2a6e518) at /usr/include/boost/bind/bind.hpp:1272
#8  0x00007ffff718471c in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:158
#9  0x0000555555be539d in boost::function0<void>::operator()() const (this=0x7fffa2a6e510) at /usr/include/boost/function/function_template.hpp:763
#10 0x00007fffd0692ea9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555a02afa0) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 89 (Thread 0x7fffc2ece640 (LWP 1052224) "RT-3-0x7fffc2ec"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x555557964da0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff717f383 in ARDOUR::Graph::run_one() (this=0x555557964cf0) at ../libs/ardour/graph.cc:426
#4  0x00007ffff717f833 in ARDOUR::Graph::helper_thread() (this=0x555557964cf0) at ../libs/ardour/graph.cc:470
#5  0x00007ffff71862f5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffc2ecd518, p=0x555557964cf0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff7185ab1 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffc2ecd528, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#7  0x00007ffff7184f82 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffc2ecd518) at /usr/include/boost/bind/bind.hpp:1272
#8  0x00007ffff718471c in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:158
#9  0x0000555555be539d in boost::function0<void>::operator()() const (this=0x7fffc2ecd510) at /usr/include/boost/function/function_template.hpp:763
#10 0x00007fffd0692ea9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x5555598c40f0) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 88 (Thread 0x7fffc0ce0640 (LWP 1052223) "RT-2-0x7fffc0ce"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x555557964dc8) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff717e6fd in ARDOUR::Graph::reached_terminal_node() (this=0x555557964cf0) at ../libs/ardour/graph.cc:301
#4  0x00007ffff7186aca in ARDOUR::GraphNode::finish(int) (this=0x5555587056a0, chain=1) at ../libs/ardour/graphnode.cc:74
#5  0x00007ffff7181d00 in ARDOUR::GraphNode::run(int) (this=0x5555587056a0, chain=1) at ../libs/ardour/ardour/graphnode.h:65
#6  0x00007ffff717f4d5 in ARDOUR::Graph::run_one() (this=0x555557964cf0) at ../libs/ardour/graph.cc:442
#7  0x00007ffff717f833 in ARDOUR::Graph::helper_thread() (this=0x555557964cf0) at ../libs/ardour/graph.cc:470
#8  0x00007ffff71862f5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffc0cdf518, p=0x555557964cf0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#9  0x00007ffff7185ab1 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffc0cdf528, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#10 0x00007ffff7184f82 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffc0cdf518) at /usr/include/boost/bind/bind.hpp:1272
#11 0x00007ffff718471c in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:158
#12 0x0000555555be539d in boost::function0<void>::operator()() const (this=0x7fffc0cdf510) at /usr/include/boost/function/function_template.hpp:763
#13 0x00007fffd0692ea9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555e0ddde0) at ../libs/backends/jack/jack_audiobackend.cc:953
#14 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 87 (Thread 0x7fffa3270640 (LWP 1052222) "RT-1-0x7fffa327"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x555557964da0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff717f383 in ARDOUR::Graph::run_one() (this=0x555557964cf0) at ../libs/ardour/graph.cc:426
#4  0x00007ffff717f833 in ARDOUR::Graph::helper_thread() (this=0x555557964cf0) at ../libs/ardour/graph.cc:470
#5  0x00007ffff71862f5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffa326f518, p=0x555557964cf0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff7185ab1 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffa326f528, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#7  0x00007ffff7184f82 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffa326f518) at /usr/include/boost/bind/bind.hpp:1272
#8  0x00007ffff718471c in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:158
#9  0x0000555555be539d in boost::function0<void>::operator()() const (this=0x7fffa326f510) at /usr/include/boost/function/function_template.hpp:763
#10 0x00007fffd0692ea9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555975dcd0) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 86 (Thread 0x7fffa226e640 (LWP 1052221) "RT-main-0x7fffa"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x555557964da0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff717f383 in ARDOUR::Graph::run_one() (this=0x555557964cf0) at ../libs/ardour/graph.cc:426
#4  0x00007ffff717fc7d in ARDOUR::Graph::main_thread() (this=0x555557964cf0) at ../libs/ardour/graph.cc:523
#5  0x00007ffff71862f5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const (this=0x7fffa226d518, p=0x555557964cf0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff7185ab1 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) (this=0x7fffa226d528, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#7  0x00007ffff7184f82 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()() (this=0x7fffa226d518) at /usr/include/boost/bind/bind.hpp:1272
#8  0x00007ffff718471c in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at /usr/include/boost/function/function_template.hpp:158
#9  0x0000555555be539d in boost::function0<void>::operator()() const (this=0x7fffa226d510) at /usr/include/boost/function/function_template.hpp:763
#10 0x00007fffd0692ea9 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) (arg=0x55555a02b670) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 85 (Thread 0x7fffc1c1d040 (LWP 1052220) "RTTaskList"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x7fffbebfec80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff768c2e2 in ARDOUR::RTTaskList::run() (this=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff768c081 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 84 (Thread 0x7fffc1c29040 (LWP 1052219) "RTTaskList"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x7fffbebfec80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff768c2e2 in ARDOUR::RTTaskList::run() (this=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff768c081 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 83 (Thread 0x7fffc1c35040 (LWP 1052218) "RTTaskList"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x7fffbebfec80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff768c2e2 in ARDOUR::RTTaskList::run() (this=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff768c081 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6
Thread 82 (Thread 0x7fffc1c41040 (LWP 1052217) "RTTaskList"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x7fffbebfec80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff768c2e2 in ARDOUR::RTTaskList::run() (this=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff768c081 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 81 (Thread 0x7fffc1c4d040 (LWP 1052216) "RTTaskList"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x7fffbebfec80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff768c2e2 in ARDOUR::RTTaskList::run() (this=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff768c081 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 80 (Thread 0x7fffc1c59040 (LWP 1052215) "RTTaskList"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x7fffbebfec80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff768c2e2 in ARDOUR::RTTaskList::run() (this=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff768c081 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 79 (Thread 0x7fffc1c65040 (LWP 1052214) "RTTaskList"):
#0  0x00007ffff3e9a8ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1  0x00007ffff3e96ae8 in __new_sem_wait_slow64.constprop.0 () at /usr/lib/libpthread.so.0
#2  0x00007ffff7181c96 in PBD::Semaphore::wait() (this=0x7fffbebfec80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff768c2e2 in ARDOUR::RTTaskList::run() (this=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff768c081 in ARDOUR::RTTaskList::_thread_run(void*) (arg=0x7fffbebfec50) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 48 (Thread 0x7fffc14e1640 (LWP 1052074) "ardour"):
#0  0x00007ffff30c592e in epoll_wait () at /usr/lib/libc.so.6
#1  0x00007fffe00113f1 in  () at /usr/lib/spa-0.2/support/libspa-support.so
#2  0x00007fffe0007e64 in  () at /usr/lib/spa-0.2/support/libspa-support.so
#3  0x00007fffd048d706 in  () at /usr/lib/libpipewire-0.3.so.0
#4  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 47 (Thread 0x7fffc24e3640 (LWP 1052073) "audioengine"):
#0  0x00007ffff30c592e in epoll_wait () at /usr/lib/libc.so.6
#1  0x00007fffe00113f1 in  () at /usr/lib/spa-0.2/support/libspa-support.so
#2  0x00007fffe0007e64 in  () at /usr/lib/spa-0.2/support/libspa-support.so
#3  0x00007fffd0453842 in pw_data_loop_wait () at /usr/lib/libpipewire-0.3.so.0
#4  0x00007fffd060384e in jack_cycle_wait () at /usr/lib/pipewire-0.3/jack/libjack.so.0
#5  0x00007fffd0692f6c in ARDOUR::JACKAudioBackend::process_thread() (this=0x55555797d0e0) at ../libs/backends/jack/jack_audiobackend.cc:982
#6  0x00007fffd0692f0c in ARDOUR::JACKAudioBackend::_process_thread(void*) (arg=0x55555797d0e0) at ../libs/backends/jack/jack_audiobackend.cc:961
#7  0x00007fffe0007efb in  () at /usr/lib/spa-0.2/support/libspa-support.so
#8  0x00007fffd045a580 in  () at /usr/lib/libpipewire-0.3.so.0
#9  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 37 (Thread 0x7fffc36cf640 (LWP 1052046) "gmain"):
#0  0x00007ffff30bab2f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff533bae8 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff52e5781 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff52e57d2 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fffd0f38640 (LWP 1052011) "DeviceList"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff6fdc2fc in ARDOUR::AudioEngine::do_devicelist_update() (this=0x5555578c2970) at ../libs/ardour/audioengine.cc:717
#3  0x00007ffff6feae39 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x5555578cd4b0, p=0x5555578c2970) at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6fea811 in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AudioEngine>&, boost::_bi::list0&, int) (this=0x5555578cd4c0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#5  0x00007ffff6fe9f1c in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()() (this=0x5555578cd4b0) at /usr/include/boost/bind/bind.hpp:1272
#6  0x00007ffff6fe953a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator()() const (this=0x5555578cd4b0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff6fe8921 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x5555578cd480) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#8  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#9  0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#10 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fffd1984640 (LWP 1052010) "EngineWatchdog"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff6fdc06c in ARDOUR::AudioEngine::do_reset_backend() (this=0x5555578c2970) at ../libs/ardour/audioengine.cc:681
#3  0x00007ffff6feae39 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const (this=0x5555578af8e0, p=0x5555578c2970) at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6fea811 in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AudioEngine>&, boost::_bi::list0&, int) (this=0x5555578af8f0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:237
#5  0x00007ffff6fe9f1c in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()() (this=0x5555578af8e0) at /usr/include/boost/bind/bind.hpp:1272
#6  0x00007ffff6fe953a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator()() const (this=0x5555578af8e0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff6fe8921 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it(sigc::internal::slot_rep*) (rep=0x5555578af8b0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#8  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#9  0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#10 0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffd37fe640 (LWP 1051947) "Analyzer"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff6f8c098 in ARDOUR::Analyser::work() () at ../libs/ardour/analyser.cc:93
#3  0x00007ffff6f8be33 in analyser_work() () at ../libs/ardour/analyser.cc:58
#4  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x5555571c9bb8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x5555571c9bb0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x5555571c9b80) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#7  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#8  0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#9  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffd3fff640 (LWP 1051946) "PeakFileBuilder"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff77e7323 in peak_thread_work() () at ../libs/ardour/source_factory.cc:73
#3  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x5555571cb128) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x5555571cb120) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x5555571cb0f0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#6  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#7  0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#8  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffe0c68640 (LWP 1051945) "PeakFileBuilder"):
#0  0x00007ffff30c018d in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5335b81 in g_cond_wait () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff77e7323 in peak_thread_work() () at ../libs/ardour/source_factory.cc:73
#3  0x0000555556506cb1 in sigc::pointer_functor0<void>::operator()() const (this=0x55555720b2a8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x000055555650393a in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const (this=0x55555720b2a0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555564ff550 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) (rep=0x55555720b270) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:136
#6  0x00007ffff547351a in  () at /usr/lib/libglibmm-2.4.so.1
#7  0x00007ffff53160c1 in  () at /usr/lib/libglib-2.0.so.0
#8  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffe1469640 (LWP 1051944) "LXVSTEventLoop"):
#0  0x00007ffff308da95 in clock_nanosleep@GLIBC_2.2.5 () at /usr/lib/libc.so.6
#1  0x00007ffff3092c77 in nanosleep () at /usr/lib/libc.so.6
#2  0x00007ffff53115f1 in g_usleep () at /usr/lib/libglib-2.0.so.0
#3  0x000055555691a797 in gui_event_loop(void*) (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007ffff3e8e259 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff30c55e3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fffe1f7e040 (LWP 1051894) "ArdourGUI"):
#0  0x00007ffff30bab2f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff533bae8 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff52e7593 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4f5b9fe in gtk_main () at /usr/lib/libgtk-x11-2.0.so.0
#4  0x00007ffff59216b2 in Gtkmm2ext::UI::run(Receiver&) (this=0x5555578fcfb0, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:310
#5  0x00005555562161ce in main(int, char**) (argc=1, argv=0x7fffffffc248) at ../gtk2_ardour/main.cc:410