Dragging region(s) from 1 different track(s), max dist: 0
ardour-6.6.56: ../libs/ardour/audioregion.cc:504: virtual ARDOUR::samplecnt_t ARDOUR::AudioRegion::read_at(ARDOUR::Sample*, ARDOUR::Sample*, float*, ARDOUR::samplepos_t, ARDOUR::samplecnt_t, uint32_t) const: Assertion `position >= _position' failed.
--Type <RET> for more, q to quit, c to continue without paging--c

Thread 57 "butler" received signal SIGABRT, Aborted.
[Switching to Thread 0x7fffc97c5640 (LWP 77650)]
0x00007fffecbe8ef5 in raise () from /usr/lib/libc.so.6
(gdb) thread apply all bt

Thread 168 (Thread 0x7ffe8affd640 (LWP 77843) "WaveViewDrawing"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b35709 in ArdourWaveView::WaveViewDrawRequestQueue::dequeue (this=0x555641243138, block=true) at ../libs/waveview/wave_view_private.cc:299
#3  0x00007ffff7b35a26 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:368
#4  0x00007ffff7b35d84 in ArdourWaveView::WaveViewDrawingThread::run (this=0x55564124a2c0) at ../libs/waveview/wave_view_private.cc:450
#5  0x00007ffff7b3a4d0 in sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>::operator() (this=0x55564124a338) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#6  0x00007ffff7b39ffa in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread> >::operator() (this=0x55564124a330) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff7b399f3 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>, void>::call_it (rep=0x55564124a300) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 167 (Thread 0x7ffe8b7fe640 (LWP 77842) "WaveViewDrawing"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b35709 in ArdourWaveView::WaveViewDrawRequestQueue::dequeue (this=0x555641243138, block=true) at ../libs/waveview/wave_view_private.cc:299
#3  0x00007ffff7b35a26 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:368
#4  0x00007ffff7b35d84 in ArdourWaveView::WaveViewDrawingThread::run (this=0x55564124a020) at ../libs/waveview/wave_view_private.cc:450
#5  0x00007ffff7b3a4d0 in sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>::operator() (this=0x55564124a098) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#6  0x00007ffff7b39ffa in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread> >::operator() (this=0x55564124a090) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff7b399f3 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>, void>::call_it (rep=0x55564124a060) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 166 (Thread 0x7ffe8bfff640 (LWP 77841) "WaveViewDrawing"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b35709 in ArdourWaveView::WaveViewDrawRequestQueue::dequeue (this=0x555641243138, block=true) at ../libs/waveview/wave_view_private.cc:299
#3  0x00007ffff7b35a26 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:368
#4  0x00007ffff7b35d84 in ArdourWaveView::WaveViewDrawingThread::run (this=0x555641249cf0) at ../libs/waveview/wave_view_private.cc:450
#5  0x00007ffff7b3a4d0 in sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>::operator() (this=0x555641249d68) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#6  0x00007ffff7b39ffa in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread> >::operator() (this=0x555641249d60) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff7b399f3 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>, void>::call_it (rep=0x555641249d30) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 165 (Thread 0x7ffe90dbd640 (LWP 77840) "WaveViewDrawing"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b35709 in ArdourWaveView::WaveViewDrawRequestQueue::dequeue (this=0x555641243138, block=true) at ../libs/waveview/wave_view_private.cc:299
#3  0x00007ffff7b35a26 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:368
#4  0x00007ffff7b35d84 in ArdourWaveView::WaveViewDrawingThread::run (this=0x555641249a50) at ../libs/waveview/wave_view_private.cc:450
#5  0x00007ffff7b3a4d0 in sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>::operator() (this=0x555641249ac8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#6  0x00007ffff7b39ffa in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread> >::operator() (this=0x555641249ac0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff7b399f3 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>, void>::call_it (rep=0x555641249a90) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors--Type <RET> for more, q to quit, c to continue without paging--c
/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 164 (Thread 0x7ffe915be640 (LWP 77839) "WaveViewDrawing"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b35709 in ArdourWaveView::WaveViewDrawRequestQueue::dequeue (this=0x555641243138, block=true) at ../libs/waveview/wave_view_private.cc:299
#3  0x00007ffff7b35a26 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:368
#4  0x00007ffff7b35d84 in ArdourWaveView::WaveViewDrawingThread::run (this=0x555641249080) at ../libs/waveview/wave_view_private.cc:450
#5  0x00007ffff7b3a4d0 in sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>::operator() (this=0x555641249398) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#6  0x00007ffff7b39ffa in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread> >::operator() (this=0x555641249390) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff7b399f3 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>, void>::call_it (rep=0x555641249360) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 163 (Thread 0x7ffe91dbf640 (LWP 77838) "WaveViewDrawing"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b35709 in ArdourWaveView::WaveViewDrawRequestQueue::dequeue (this=0x555641243138, block=true) at ../libs/waveview/wave_view_private.cc:299
#3  0x00007ffff7b35a26 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:368
#4  0x00007ffff7b35d84 in ArdourWaveView::WaveViewDrawingThread::run (this=0x5556412490a0) at ../libs/waveview/wave_view_private.cc:450
#5  0x00007ffff7b3a4d0 in sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>::operator() (this=0x555641249118) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#6  0x00007ffff7b39ffa in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread> >::operator() (this=0x555641249110) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff7b399f3 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>, void>::call_it (rep=0x5556412490e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 162 (Thread 0x7ffe925c0640 (LWP 77837) "WaveViewDrawing"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff7b35709 in ArdourWaveView::WaveViewDrawRequestQueue::dequeue (this=0x555641243138, block=true) at ../libs/waveview/wave_view_private.cc:299
#3  0x00007ffff7b35a26 in ArdourWaveView::WaveViewThreads::dequeue_draw_request () at ../libs/waveview/wave_view_private.cc:368
#4  0x00007ffff7b35d84 in ArdourWaveView::WaveViewDrawingThread::run (this=0x555641248de0) at ../libs/waveview/wave_view_private.cc:450
#5  0x00007ffff7b3a4d0 in sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>::operator() (this=0x555641248e58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#6  0x00007ffff7b39ffa in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread> >::operator() (this=0x555641248e50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff7b399f3 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ArdourWaveView::WaveViewDrawingThread>, void>::call_it (rep=0x555641248e20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 161 (Thread 0x7ffe92dc1640 (LWP 77810) "ExecStdOut"):
#0  0x00007fffecca2ad1 in select () from /usr/lib/libc.so.6
#1  0x00007ffff41e8e24 in PBD::SystemExec::output_interposer (this=0x5555578132c0) at ../libs/pbd/system_exec.cc:844
#2  0x00007ffff41e7f64 in interposer_thread (arg=0x5555578132c0) at ../libs/pbd/system_exec.cc:281
#3  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 160 (Thread 0x7ffe935c2640 (LWP 77805) "ExecStdOut"):
#0  0x00007fffecca2ad1 in select () from /usr/lib/libc.so.6
#1  0x00007ffff41e8e24 in PBD::SystemExec::output_interposer (this=0x5555571a72d0) at ../libs/pbd/system_exec.cc:844
#2  0x00007ffff41e7f64 in interposer_thread (arg=0x5555571a72d0) at ../libs/pbd/system_exec.cc:281
#3  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 159 (Thread 0x7ffe93dc3640 (LWP 77803) "AutomationWatch"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007ffff2f90a38 in g_usleep () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff6aa367a in ARDOUR::AutomationWatch::thread (this=0x555582426060) at ../libs/ardour/automation_watch.cc:195
#4  0x00007ffff6aa8e81 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x55563eecdf30, p=0x555582426060) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff6aa8ac6 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x55563eecdf40, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#6  0x00007ffff6aa81e7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x55563eecdf30) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#7  0x00007ffff6aa8168 in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator() (this=0x55563eecdf30) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#8  0x00007ffff6aa79c6 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 (rep=0x55563eecdf00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#10 0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#11 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 158 (Thread 0x7ffe945c4640 (LWP 77802) "autoconnect"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007ffff70cf823 in ARDOUR::Session::auto_connect_thread_run (this=0x555557e43250) at ../libs/ardour/session.cc:7181
#3  0x00007ffff70cf34a in ARDOUR::Session::auto_connect_thread (arg=0x555557e43250) at ../libs/ardour/session.cc:7111
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 157 (Thread 0x7ffe94dc5640 (LWP 77801) "SessionSignals"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007ffff714a383 in ARDOUR::Session::emit_thread_run (this=0x555557e43250) at ../libs/ardour/session_process.cc:1114
#3  0x00007ffff714a320 in ARDOUR::Session::emit_thread (arg=0x555557e43250) at ../libs/ardour/session_process.cc:1103
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 156 (Thread 0x7ffe955c6640 (LWP 77800) "Generic MIDI"):
#0  0x00007fffecca037f in poll () from /usr/lib/libc.so.6
#1  0x00007ffff2f5fd66 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2f600f2 in g_main_loop_run () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4199b46 in BaseUI::main_thread (this=0x55556ee154a0) at ../libs/pbd/base_ui.cc:98
#4  0x00007ffff419dc68 in sigc::bound_mem_functor0<void, BaseUI>::operator() (this=0x55557a7ce7e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff419d8a8 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x55557a7ce7e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff419d2e9 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x55557a7ce7b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 155 (Thread 0x7ffe967e4640 (LWP 77797) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55560b2db550) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55560b2db530) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55560b43fd98) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55560b43fd90) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55560b43fd60) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 154 (Thread 0x7ffe96fe5640 (LWP 77796) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55560ae1f9e0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55560ae1f9c0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55560ae7fbc8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55560ae7fbc0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55560ae7fb90) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 153 (Thread 0x7ffe977e6640 (LWP 77795) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55560a710270) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55560a710250) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55560a7b6fb8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55560a7b6fb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55560a7b6f80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 152 (Thread 0x7ffe97fe7640 (LWP 77794) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55560a65bfb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55560a65bf90) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55560a6bc1c8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55560a6bc1c0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55560a6bc190) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 151 (Thread 0x7ffe987e8640 (LWP 77793) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55560961b940) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55560961b920) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55560a301218) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55560a301210) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55560a3011e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 150 (Thread 0x7ffe98fe9640 (LWP 77792) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55560a0d89d0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55560a0d89b0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55560a138be8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55560a138be0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55560a138bb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 149 (Thread 0x7ffe997ea640 (LWP 77791) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555609f00e80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x555609f00e60) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x555609f61098) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x555609f61090) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x555609f61060) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 148 (Thread 0x7ffe99feb640 (LWP 77790) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555609666da0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x555609666d80) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5556096c6f88) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5556096c6f80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5556096c6f50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 147 (Thread 0x7ffe9a7ec640 (LWP 77789) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555fd6bc7a0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555fd6bc780) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555fd6bdee8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555fd6bdee0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555fd6bdeb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 145 (Thread 0x7ffe9b7ee640 (LWP 77787) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ff076ad0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ff076ab0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ff026628) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ff026620) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ff0265f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 144 (Thread 0x7ffe9bfef640 (LWP 77784) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555fc87be40) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555fc87be20) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555fc87bff8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555fc87bff0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555fc87bfc0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 143 (Thread 0x7ffe9c7f0640 (LWP 77783) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555f6915180) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555f6915160) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555f6915338) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555f6915330) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555f6915300) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 142 (Thread 0x7ffe9cff1640 (LWP 77782) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555f32932f0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555f32932d0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555f334a858) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555f334a850) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555f334a820) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 141 (Thread 0x7ffe9d7f2640 (LWP 77781) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555f31ef4b0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555f31ef490) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555f324f6c8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555f324f6c0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555f324f690) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 140 (Thread 0x7ffe9dff3640 (LWP 77780) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555f30fe0d0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555f30fe0b0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555f315e1d8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555f315e1d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555f315e1a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 139 (Thread 0x7ffe9e7f4640 (LWP 77779) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555f2b702e0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555f2b702c0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555f2fcb788) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555f2fcb780) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555f2fcb750) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 138 (Thread 0x7ffe9eff5640 (LWP 77778) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ef2fb110) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ef2fb0f0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ef35b328) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ef35b320) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ef35b2f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 137 (Thread 0x7ffe9f7f6640 (LWP 77777) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ef0d8860) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ef0d8840) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ef0d8938) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ef0d8930) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ef0d8900) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 136 (Thread 0x7ffe9fff7640 (LWP 77776) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ed5265a0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ed526580) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ed526758) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ed526750) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ed526720) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 135 (Thread 0x7ffea07f8640 (LWP 77775) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ed1ba140) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ed1ba120) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ed1ba218) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ed1ba210) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ed1ba1e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 134 (Thread 0x7ffea0ff9640 (LWP 77774) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ec8c5230) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ec8c5210) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ec925418) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ec925410) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ec9253e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 133 (Thread 0x7ffea17fa640 (LWP 77773) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ebf7af60) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ebf7af40) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ebfdb148) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ebfdb140) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ebfdb110) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 132 (Thread 0x7ffea1ffb640 (LWP 77772) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555eacc8aa0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555eacc8a80) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ead28c88) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ead28c80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ead28c50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 131 (Thread 0x7ffea27fc640 (LWP 77771) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ea90d090) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ea90d070) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ea96d278) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ea96d270) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ea96d240) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 130 (Thread 0x7ffea2ffd640 (LWP 77770) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ea4dd840) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ea4dd820) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ea53da28) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ea53da20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ea53d9f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 129 (Thread 0x7ffea37fe640 (LWP 77769) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555ea2f1e30) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555ea2f1e10) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555ea2f35b8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555ea2f35b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555ea2f3580) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 128 (Thread 0x7ffea3fff640 (LWP 77768) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555e9956760) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555e9956740) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555e99563e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555e99563e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555e99563b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 127 (Thread 0x7ffeb8ff9640 (LWP 77767) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555e6e9d9a0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555e6e9d980) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555e6e9db58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555e6e9db50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555e6e9db20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 126 (Thread 0x7ffeb97fa640 (LWP 77766) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555dc020400) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555dc0203e0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555e472add8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555e472add0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555e472ada0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 125 (Thread 0x7ffeb9ffb640 (LWP 77765) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555e0e2a440) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555e0e2a420) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555e0e8a628) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555e0e8a620) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555e0e8a5f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 124 (Thread 0x7ffeba7fc640 (LWP 77764) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555e0357880) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555e0357860) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555e039f588) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555e039f580) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555e039f550) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 123 (Thread 0x7ffebaffd640 (LWP 77763) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555dda36a90) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555dda36a70) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555dda36c48) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555dda36c40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555dda36c10) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 121 (Thread 0x7ffebbfff640 (LWP 77761) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555d68d8820) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555d68d8800) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555d68d89d8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555d68d89d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555d68d89a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 120 (Thread 0x7ffed0a65640 (LWP 77760) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555d4a6f0e0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555d4a6f0c0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555d4a6f298) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555d4a6f290) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555d4a6f260) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 119 (Thread 0x7ffed1266640 (LWP 77758) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555c8623090) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555c8623070) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555c8683278) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555c8683270) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555c8683240) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 118 (Thread 0x7ffed1a67640 (LWP 77757) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555c7a64d00) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555c7a64ce0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555c7a64eb8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555c7a64eb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555c7a64e80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 117 (Thread 0x7ffed2268640 (LWP 77756) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555c2d5ed80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555c2d5ed60) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555c2dbef68) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555c2dbef60) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555c2dbef30) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 116 (Thread 0x7ffeecff9640 (LWP 77755) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555c1b2c790) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555c1b2c770) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555c1b2c978) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555c1b2c970) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555c1b2c940) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 115 (Thread 0x7ffeed7fa640 (LWP 77754) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555bb6556f0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555bb6556d0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555bb6558a8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555bb6558a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555bb655870) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 114 (Thread 0x7ffeedffb640 (LWP 77746) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555b542f670) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555b542f650) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555b548f858) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555b548f850) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555b548f820) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 113 (Thread 0x7ffeee7fc640 (LWP 77745) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555b2bcb650) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555b2bcb630) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555b2bcb728) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555b2bcb720) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555b2bcb6f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 112 (Thread 0x7ffeeeffd640 (LWP 77744) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555aed948d0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555aed948b0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555aedf4ab8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555aedf4ab0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555aedf4a80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 111 (Thread 0x7ffeef7fe640 (LWP 77743) "JUCE Timer"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b852 in pthread_cond_clockwait () from /usr/lib/libpthread.so.0
#2  0x00007ffef508ebc9 in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#3  0x00007ffef505d0df in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#4  0x00007ffef50ba3eb in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#5  0x00007ffef50ba549 in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 109 (Thread 0x7ffef4d25640 (LWP 77737) "ArdourGUI"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007ffef508c1e1 in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#3  0x00007ffef505c1d5 in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#4  0x00007ffef4e1cb8c in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#5  0x00007ffef50ba3eb in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#6  0x00007ffef50ba549 in ?? () from /usr/lib/lv2/CHOWTapeModel.lv2/CHOWTapeModel.so
#7  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 108 (Thread 0x7ffef5d4b640 (LWP 77736) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555a281bae0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555a281bac0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555a287bcc8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555a287bcc0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555a287bc90) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 107 (Thread 0x7ffef654c640 (LWP 77734) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff42232689 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a149d1e0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 106 (Thread 0x7ffef6d4d640 (LWP 77733) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff4225af8b in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a14e9ae0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 105 (Thread 0x7ffef754e640 (LWP 77732) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff42261a33 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a14e98e0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 104 (Thread 0x7ffef7d4f640 (LWP 77731) "ArdourGUI"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007fff4228bef3 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a14e96e0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 103 (Thread 0x7ffef8550640 (LWP 77730) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff42232689 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a053d0c0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 102 (Thread 0x7ffef8d51640 (LWP 77729) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff4225af8b in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a04d89b0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 101 (Thread 0x7ffef9552640 (LWP 77728) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff42261a33 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a04d90c0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 100 (Thread 0x7ffef9d53640 (LWP 77727) "ArdourGUI"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007fff4228bef3 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a04e0430) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 99 (Thread 0x7ffefa554640 (LWP 77726) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff42263ccc in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021fd30) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 98 (Thread 0x7ffefad55640 (LWP 77725) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff42263ccc in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021fb40) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 97 (Thread 0x7ffefb556640 (LWP 77724) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff42263ccc in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021f510) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 96 (Thread 0x7ffefbd57640 (LWP 77723) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff42263ccc in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021f300) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 95 (Thread 0x7ffefc558640 (LWP 77722) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff42263ccc in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021f530) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 94 (Thread 0x7ffefcd59640 (LWP 77721) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff42263ccc in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021f320) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 93 (Thread 0x7ffefd55a640 (LWP 77720) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff4225af8b in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021f0b0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 92 (Thread 0x7fff08f61640 (LWP 77719) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff42242106 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fff42261a33 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021eeb0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 91 (Thread 0x7fff09762640 (LWP 77718) "ArdourGUI"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007fff4228bef3 in ?? () from /usr/lib/vst3/sfizz.vst3/Contents/x86_64-linux/sfizz.so
#3  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555a021ecb0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 90 (Thread 0x7fff09f63640 (LWP 77716) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559ed96fa0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559ed96f80) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559f994f88) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559f994f80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559f994f50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 89 (Thread 0x7fffcaf3a640 (LWP 77715) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559f024c00) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559f024be0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559f084de8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559f084de0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559f084db0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 88 (Thread 0x7fff1cff9640 (LWP 77712) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559ee12d10) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559ee12cf0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559ee12b28) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559ee12b20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559ee12af0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 87 (Thread 0x7fff1d7fa640 (LWP 77711) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559e9358f0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559e9358d0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559e932238) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559e932230) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559e932200) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 86 (Thread 0x7fff1dffb640 (LWP 77710) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559d2079d0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559d2079b0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559d05f2f8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559d05f2f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559d05f2c0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 85 (Thread 0x7fff1e7fc640 (LWP 77709) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559d03be20) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559d03be00) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559d1a1f78) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559d1a1f70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559d1a1f40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 84 (Thread 0x7fff1effd640 (LWP 77708) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff5492bfe6 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#3  0x00007fff548d3d1b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559d040680) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 83 (Thread 0x7fff1f7fe640 (LWP 77707) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff5492bfe6 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#3  0x00007fff548da7c3 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559d040490) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 82 (Thread 0x7fff1ffff640 (LWP 77706) "ArdourGUI"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007fff54904c83 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#3  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559d013d80) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 81 (Thread 0x7fff30ff9640 (LWP 77705) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555920a5b50) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555920a5b30) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559cfd3b78) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559cfd3b70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559cfd3b40) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 80 (Thread 0x7fff317fa640 (LWP 77704) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559c70bee0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559c70bec0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559ca8ed58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559ca8ed50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559ca8ed20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 79 (Thread 0x7fff31ffb640 (LWP 77703) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559c4b5a10) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559c4b59f0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559c4b5df8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559c4b5df0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559c4b5dc0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 78 (Thread 0x7fff327fc640 (LWP 77702) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55559b1bdd40) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55559b1bdd20) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55559b1c5498) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55559b1c5490) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55559b1c5460) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 77 (Thread 0x7fff32ffd640 (LWP 77701) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff548dca5c in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04e630) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 76 (Thread 0x7fff337fe640 (LWP 77700) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff548dca5c in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04e450) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 75 (Thread 0x7fff33fff640 (LWP 77699) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff548dca5c in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04de50) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 74 (Thread 0x7fff38cc8640 (LWP 77698) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff548dca5c in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04dc50) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 73 (Thread 0x7fff394c9640 (LWP 77697) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff548dca5c in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04de70) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 72 (Thread 0x7fff39cca640 (LWP 77696) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffecfa1bb1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:865
#3  std::condition_variable::wait (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#4  0x00007fff548dca5c in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#5  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04dc70) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 71 (Thread 0x7fff3a4cb640 (LWP 77695) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff5492bfe6 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#3  0x00007fff548d3d1b in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04da10) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 70 (Thread 0x7fff3accc640 (LWP 77694) "ArdourGUI"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007fff5492bfe6 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#3  0x00007fff548da7c3 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#4  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x55559b04d820) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 69 (Thread 0x7fff42ccc640 (LWP 77693) "ArdourGUI"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007fff54904c83 in ?? () from /usr/lib/lv2/sfizz.lv2/Contents/Binary/sfizz.so
#3  0x00007fffecfa7bc4 in std::execute_native_thread_routine (__p=0x5555967297b0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 68 (Thread 0x7fff434cd640 (LWP 77692) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555967295c0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555967295a0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x555596728eb8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x555596728eb0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x555596728e80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 67 (Thread 0x7fff3bfff640 (LWP 77690) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555594912e00) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x555594912de0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x555594912fa8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x555594912fa0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x555594912f70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 66 (Thread 0x7fff41a66640 (LWP 77686) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555590666b60) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x555590666b40) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x555590668a58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x555590668a50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x555590668a20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 65 (Thread 0x7fff55260640 (LWP 77685) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55558da9cb80) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55558da9cb60) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55558dafcd68) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55558dafcd60) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55558dafcd30) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 64 (Thread 0x7fff5619a640 (LWP 77683) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55558cb60870) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55558cb60850) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55558cb62d88) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55558cb62d80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55558cb62d50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 63 (Thread 0x7fff574cd640 (LWP 77682) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555589d55fb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x555589d55f90) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x555589d55ca8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x555589d55ca0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x555589d55c70) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 62 (Thread 0x7fff8ce6e640 (LWP 77676) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555585e1ddb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x555585e1dd90) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x555585e1e3b8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x555585e1e3b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x555585e1e380) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 61 (Thread 0x7fffc9737640 (LWP 77675) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555584036840) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x555584036820) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x555584046668) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x555584046660) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x555584046630) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 60 (Thread 0x7fffca739640 (LWP 77674) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x55558299bad0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x55558299bab0) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x55558299d5e8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x55558299d5e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x55558299d5b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 59 (Thread 0x7fffa6ffd640 (LWP 77673) "LV2Worker"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x5555826f4120) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7240a20 in ARDOUR::Worker::run (this=0x5555826f4100) at ../libs/ardour/worker.cc:146
#4  0x00007ffff7241a12 in sigc::bound_mem_functor0<void, ARDOUR::Worker>::operator() (this=0x5555826f41f8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff724195a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::Worker> >::operator() (this=0x5555826f41f0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff7241831 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::Worker>, void>::call_it (rep=0x5555826f41c0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 58 (Thread 0x7fffa77fe640 (LWP 77651) "midiUI"):
#0  0x00007fffecca037f in poll () from /usr/lib/libc.so.6
#1  0x00007ffff2f5fd66 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2f600f2 in g_main_loop_run () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4199b46 in BaseUI::main_thread (this=0x555561ff9520) at ../libs/pbd/base_ui.cc:98
#4  0x00007ffff419dc68 in sigc::bound_mem_functor0<void, BaseUI>::operator() (this=0x555577ed7b58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff419d8a8 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x555577ed7b50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00007ffff419d2e9 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x555577ed7b20) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 57 (Thread 0x7fffc97c5640 (LWP 77650) "butler"):
#0  0x00007fffecbe8ef5 in raise () from /usr/lib/libc.so.6
#1  0x00007fffecbd2862 in abort () from /usr/lib/libc.so.6
#2  0x00007fffecbd2747 in __assert_fail_base.cold () from /usr/lib/libc.so.6
#3  0x00007fffecbe1646 in __assert_fail () from /usr/lib/libc.so.6
#4  0x00007ffff6a637a7 in ARDOUR::AudioRegion::read_at (this=0x7fff880dbe50, buf=0x7ffe76953bcc, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, position=6324160, cnt=73792, chan_n=1) at ../libs/ardour/audioregion.cc:504
#5  0x00007ffff6a199c7 in ARDOUR::AudioPlaylist::read (this=0x5555822d1f40, buf=0x7ffe76948fd0, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, start=6313153, cnt=516096, chan_n=1) at ../libs/ardour/audio_playlist.cc:263
#6  0x00007ffff6af27d4 in ARDOUR::DiskReader::audio_read (this=0x55560bf041c0, sum_buffer=0x7ffe76948fd0, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, start=@0x7fffc97c3538: 6313153, cnt=516096, rci=0x55563989fee0, channel=1, reversed=false) at ../libs/ardour/disk_reader.cc:1048
#7  0x00007ffff6af39bc in ARDOUR::DiskReader::refill_audio (this=0x55560bf041c0, sum_buffer=0x7ffe76948fd0, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, fill_level=0, reversed=false) at ../libs/ardour/disk_reader.cc:1306
#8  0x00007ffff6af2cf0 in ARDOUR::DiskReader::do_refill_with_alloc (this=0x55560bf041c0, partial_fill=false, reversed=false) at ../libs/ardour/disk_reader.cc:1119
#9  0x00007ffff6af21a9 in ARDOUR::DiskReader::seek (this=0x55560bf041c0, sample=6313153, complete_refill=true) at ../libs/ardour/disk_reader.cc:886
#10 0x00007ffff6ae7364 in ARDOUR::DiskIOProcessor::non_realtime_locate (this=0x55560bf041c0, location=6321344) at ../libs/ardour/disk_io.cc:214
#11 0x00007ffff7064c66 in ARDOUR::Route::non_realtime_locate (this=0x55560bdc0040, pos=6321344) at ../libs/ardour/route.cc:5387
#12 0x00007ffff72116b9 in ARDOUR::Track::non_realtime_locate (this=0x55560bdc0040, p=6321344) at ../libs/ardour/track.cc:534
#13 0x00007ffff71b1677 in ARDOUR::Session::non_realtime_stop (this=0x555557e43250, abort=false, on_entry=1, finished=@0x7fffc97c404f: true) at ../libs/ardour/session_transport.cc:1548
#14 0x00007ffff71afdea in ARDOUR::Session::butler_transport_work (this=0x555557e43250, have_process_lock=false) at ../libs/ardour/session_transport.cc:1223
#15 0x00007ffff6ab9616 in ARDOUR::Butler::thread_work (this=0x55555c8cfb80) at ../libs/ardour/butler.cc:205
#16 0x00007ffff6ab8ed1 in ARDOUR::Butler::_thread_work (arg=0x55555c8cfb80) at ../libs/ardour/butler.cc:153
#17 0x00007ffff41d2cf0 in fake_thread_start (arg=0x555562004a70) at ../libs/pbd/pthread_utils.cc:113
#18 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#19 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 56 (Thread 0x7fffc9846640 (LWP 77649) "RT-6-0x7fffc984"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a13cb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bd7eec in ARDOUR::Graph::run_one (this=0x555559a13c00) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bd83a4 in ARDOUR::Graph::helper_thread (this=0x555559a13c00) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bde951 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc9845c58, p=0x555559a13c00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bde106 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc9845c68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bdd563 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc9845c58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bdce07 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 (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555a9d246 in boost::function0<void>::operator() (this=0x7fffc9845c50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd9732d9f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555559f24230) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 55 (Thread 0x7fffc98c7640 (LWP 77648) "RT-5-0x7fffc98c"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a13cb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bd7eec in ARDOUR::Graph::run_one (this=0x555559a13c00) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bd83a4 in ARDOUR::Graph::helper_thread (this=0x555559a13c00) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bde951 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc98c6c58, p=0x555559a13c00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bde106 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc98c6c68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bdd563 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc98c6c58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bdce07 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 (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555a9d246 in boost::function0<void>::operator() (this=0x7fffc98c6c50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd9732d9f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x5555596718d0) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 54 (Thread 0x7fffc9948640 (LWP 77647) "RT-4-0x7fffc994"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a13cb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bd7eec in ARDOUR::Graph::run_one (this=0x555559a13c00) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bd83a4 in ARDOUR::Graph::helper_thread (this=0x555559a13c00) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bde951 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc9947c58, p=0x555559a13c00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bde106 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc9947c68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bdd563 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc9947c58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bdce07 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 (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555a9d246 in boost::function0<void>::operator() (this=0x7fffc9947c50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd9732d9f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555d8400e0) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 53 (Thread 0x7fffc99c9640 (LWP 77646) "RT-3-0x7fffc99c"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a13cb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bd7eec in ARDOUR::Graph::run_one (this=0x555559a13c00) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bd83a4 in ARDOUR::Graph::helper_thread (this=0x555559a13c00) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bde951 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc99c8c58, p=0x555559a13c00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bde106 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc99c8c68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bdd563 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc99c8c58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bdce07 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 (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555a9d246 in boost::function0<void>::operator() (this=0x7fffc99c8c50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd9732d9f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555559a83eb0) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 52 (Thread 0x7fffc9a4a640 (LWP 77645) "RT-2-0x7fffc9a4"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a13cb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bd7eec in ARDOUR::Graph::run_one (this=0x555559a13c00) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bd83a4 in ARDOUR::Graph::helper_thread (this=0x555559a13c00) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bde951 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc9a49c58, p=0x555559a13c00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bde106 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc9a49c68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bdd563 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc9a49c58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bdce07 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 (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555a9d246 in boost::function0<void>::operator() (this=0x7fffc9a49c50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd9732d9f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x555559498570) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 51 (Thread 0x7fffc9acb640 (LWP 77644) "RT-1-0x7fffc9ac"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a13cb0) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bd7eec in ARDOUR::Graph::run_one (this=0x555559a13c00) at ../libs/ardour/graph.cc:426
#4  0x00007ffff6bd83a4 in ARDOUR::Graph::helper_thread (this=0x555559a13c00) at ../libs/ardour/graph.cc:470
#5  0x00007ffff6bde951 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc9acac58, p=0x555559a13c00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#6  0x00007ffff6bde106 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc9acac68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#7  0x00007ffff6bdd563 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc9acac58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#8  0x00007ffff6bdce07 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 (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#9  0x0000555555a9d246 in boost::function0<void>::operator() (this=0x7fffc9acac50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#10 0x00007fffd9732d9f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555c880e00) at ../libs/backends/jack/jack_audiobackend.cc:953
#11 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 50 (Thread 0x7fffc9b4c640 (LWP 77643) "RT-main-0x7fffc"):
#0  0x00007fffa57a19b3 in calf_plugins::crusher_audio_module::process(unsigned int, unsigned int, unsigned int, unsigned int) () from /usr/lib/lv2/calf.lv2/calf.so
#1  0x00007fffa57a68ba in calf_plugins::audio_module<calf_plugins::crusher_metadata>::process_slice(unsigned int, unsigned int) () from /usr/lib/lv2/calf.lv2/calf.so
#2  0x00007fffa5759100 in calf_plugins::lv2_instance::run(unsigned int, bool) () from /usr/lib/lv2/calf.lv2/calf.so
#3  0x00007ffff7241ef1 in lilv_instance_run (instance=0x555582d38d40, sample_count=2048) at ../../gtk/inst/include/lilv-0/lilv/lilv.h:1841
#4  0x00007ffff7253d2c in ARDOUR::LV2Plugin::run (this=0x555582d08010, nframes=2048, sync_work=false) at ../libs/ardour/lv2_plugin.cc:3240
#5  0x00007ffff725184d in ARDOUR::LV2Plugin::connect_and_run (this=0x555582d08010, bufs=..., start=6325456, end=6325456, speed=0, in_map=..., out_map=..., nframes=2048, offset=0) at ../libs/ardour/lv2_plugin.cc:2899
#6  0x00007ffff6f8334e in ARDOUR::PluginInsert::connect_and_run (this=0x555582cff830, bufs=..., start=6325456, end=6325456, speed=0, nframes=2048, offset=0, with_auto=true) at ../libs/ardour/plugin_insert.cc:1083
#7  0x00007ffff6f8492a in ARDOUR::PluginInsert::run (this=0x555582cff830, bufs=..., start_sample=6325456, end_sample=6325456, speed=0, nframes=2048) at ../libs/ardour/plugin_insert.cc:1291
#8  0x00007ffff7047a13 in ARDOUR::Route::process_output_buffers (this=0x5555823abfe0, bufs=..., start_sample=6325508, end_sample=6325508, nframes=2048, gain_automation_ok=false, run_disk_reader=false) at ../libs/ardour/route.cc:532
#9  0x00007ffff7048b25 in ARDOUR::Route::run_route (this=0x5555823abfe0, start_sample=6321344, end_sample=6321344, nframes=2048, gain_automation_ok=false, run_disk_reader=false) at ../libs/ardour/route.cc:717
#10 0x00007ffff705ca56 in ARDOUR::Route::no_roll_unlocked (this=0x5555823abfe0, nframes=2048, start_sample=6321344, end_sample=6321344, session_state_changing=true) at ../libs/ardour/route.cc:3956
#11 0x00007ffff705c933 in ARDOUR::Route::no_roll (this=0x5555823abfe0, nframes=2048, start_sample=6321344, end_sample=6321344, session_state_changing=true) at ../libs/ardour/route.cc:3926
#12 0x00007ffff6bda566 in ARDOUR::Graph::process_one_route (this=0x555559a13c00, route=0x5555823abfe0) at ../libs/ardour/graph.cc:670
#13 0x00007ffff6bdf074 in ARDOUR::GraphNode::process (this=0x5555823ac4c0) at ../libs/ardour/graphnode.cc:80
#14 0x00007ffff6bda7a9 in ARDOUR::GraphNode::run (this=0x5555823ac4c0, chain=1) at ../libs/ardour/ardour/graphnode.h:62
#15 0x00007ffff6bd805a in ARDOUR::Graph::run_one (this=0x555559a13c00) at ../libs/ardour/graph.cc:442
#16 0x00007ffff6bd8786 in ARDOUR::Graph::main_thread (this=0x555559a13c00) at ../libs/ardour/graph.cc:523
#17 0x00007ffff6bde951 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffc9b4bc58, p=0x555559a13c00) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#18 0x00007ffff6bde106 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffc9b4bc68, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#19 0x00007ffff6bdd563 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffc9b4bc58) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#20 0x00007ffff6bdce07 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 (function_obj_ptr=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:159
#21 0x0000555555a9d246 in boost::function0<void>::operator() (this=0x7fffc9b4bc50) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:769
#22 0x00007fffd9732d9f in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x55555c65c560) at ../libs/backends/jack/jack_audiobackend.cc:953
#23 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#24 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 49 (Thread 0x7fffc9b57900 (LWP 77642) "RTTaskList"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a00c70) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7091617 in ARDOUR::RTTaskList::run (this=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff7091404 in ARDOUR::RTTaskList::_thread_run (arg=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 48 (Thread 0x7fffc9b63900 (LWP 77641) "RTTaskList"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a00c70) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7091617 in ARDOUR::RTTaskList::run (this=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff7091404 in ARDOUR::RTTaskList::_thread_run (arg=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 47 (Thread 0x7fffc9b6f900 (LWP 77640) "RTTaskList"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a00c70) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7091617 in ARDOUR::RTTaskList::run (this=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff7091404 in ARDOUR::RTTaskList::_thread_run (arg=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 46 (Thread 0x7fffcaf48900 (LWP 77639) "RTTaskList"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a00c70) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7091617 in ARDOUR::RTTaskList::run (this=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff7091404 in ARDOUR::RTTaskList::_thread_run (arg=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 45 (Thread 0x7fffcaf54900 (LWP 77638) "RTTaskList"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a00c70) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7091617 in ARDOUR::RTTaskList::run (this=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff7091404 in ARDOUR::RTTaskList::_thread_run (arg=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 44 (Thread 0x7fffcaf60900 (LWP 77637) "RTTaskList"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a00c70) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7091617 in ARDOUR::RTTaskList::run (this=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff7091404 in ARDOUR::RTTaskList::_thread_run (arg=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 43 (Thread 0x7fffd810a900 (LWP 77636) "RTTaskList"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a00c70) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff7091617 in ARDOUR::RTTaskList::run (this=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:112
#4  0x00007ffff7091404 in ARDOUR::RTTaskList::_thread_run (arg=0x555559a00c40) at ../libs/ardour/rt_tasklist.cc:68
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 30 (Thread 0x7fffc9cf8640 (LWP 77604) "audioengine"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07db98 in __new_sem_wait_slow64.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007ffff6bda750 in PBD::Semaphore::wait (this=0x555559a13cf8) at ../libs/pbd/pbd/semutils.h:64
#3  0x00007ffff6bda2a3 in ARDOUR::Graph::routes_no_roll (this=0x555559a13c00, nframes=2048, start_sample=6321344, end_sample=6321344, non_rt_pending=true) at ../libs/ardour/graph.cc:654
#4  0x00007ffff714620c in ARDOUR::Session::no_roll (this=0x555557e43250, nframes=2048) at ../libs/ardour/session_process.cc:186
#5  0x00007ffff7147c47 in ARDOUR::Session::process_with_events (this=0x555557e43250, nframes=2048) at ../libs/ardour/session_process.cc:514
#6  0x00007ffff7145ad1 in ARDOUR::Session::process (this=0x555557e43250, nframes=2048) at ../libs/ardour/session_process.cc:97
#7  0x00007ffff6a434ca in ARDOUR::AudioEngine::process_callback (this=0x5555574840b0, nframes=2048) at ../libs/ardour/audioengine.cc:506
#8  0x00007fffd9732e69 in ARDOUR::JACKAudioBackend::process_thread (this=0x5555575b5040) at ../libs/backends/jack/jack_audiobackend.cc:984
#9  0x00007fffd9732dee in ARDOUR::JACKAudioBackend::_process_thread (arg=0x5555575b5040) at ../libs/backends/jack/jack_audiobackend.cc:961
#10 0x00007fffd938febb in ?? () from /usr/lib/libjack.so.0
#11 0x00007fffd93ac8ed in ?? () from /usr/lib/libjack.so.0
#12 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#13 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 29 (Thread 0x7fffc9d79640 (LWP 77603) "audioengine"):
#0  0x00007fffef07e87c in read () from /usr/lib/libpthread.so.0
#1  0x00007fffd93adb2f in ?? () from /usr/lib/libjack.so.0
#2  0x00007fffd93b273d in ?? () from /usr/lib/libjack.so.0
#3  0x00007fffd93b2572 in ?? () from /usr/lib/libjack.so.0
#4  0x00007fffd93ac8ed in ?? () from /usr/lib/libjack.so.0
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 28 (Thread 0x7fffc9f38640 (LWP 77602) "audioengine"):
#0  0x00007fffef0819ba in __futex_abstimed_wait_common64 () from /usr/lib/libpthread.so.0
#1  0x00007fffef07b260 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#2  0x00007fffd93ad3c0 in ?? () from /usr/lib/libjack.so.0
#3  0x00007fffd93a1456 in ?? () from /usr/lib/libjack.so.0
#4  0x00007fffd93ac8ed in ?? () from /usr/lib/libjack.so.0
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fffcb7fe640 (LWP 77583) "gmain"):
#0  0x00007fffecca037f in poll () from /usr/lib/libc.so.6
#1  0x00007ffff2f5fd66 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff2f5fe7c in g_main_context_iteration () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2f5fec1 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#4  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#5  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fffda17a640 (LWP 77573) "DeviceList"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6a43ffd in ARDOUR::AudioEngine::do_devicelist_update (this=0x5555574840b0) at ../libs/ardour/audioengine.cc:717
#3  0x00007ffff6a520a3 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x5555573110d0, p=0x5555574840b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6a51a4a in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x5555573110e0, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6a510b7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x5555573110d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff6a5074a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x5555573110d0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff6a4f7c6 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 (rep=0x5555573110a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fffdbb15640 (LWP 77572) "EngineWatchdog"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6a43dc4 in ARDOUR::AudioEngine::do_reset_backend (this=0x5555574840b0) at ../libs/ardour/audioengine.cc:681
#3  0x00007ffff6a520a3 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x555557311000, p=0x5555574840b0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff6a51a4a in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x555557311010, f=..., a=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:259
#5  0x00007ffff6a510b7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x555557311000) at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:1294
#6  0x00007ffff6a5074a in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator() (this=0x555557311000) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#7  0x00007ffff6a4f7c6 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 (rep=0x555557310fd0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffe2ffd640 (LWP 77569) "Analyzer"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff69f7ce0 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:93
#3  0x00007ffff69f7acc in analyser_work () at ../libs/ardour/analyser.cc:58
#4  0x000055555634721f in sigc::pointer_functor0<void>::operator() (this=0x5555572a3bf8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x0000555556344352 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555572a3bf0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#6  0x00005555563401db in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555572a3bc0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffe37fe640 (LWP 77568) "PeakFileBuilder"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71dcd04 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x000055555634721f in sigc::pointer_functor0<void>::operator() (this=0x5555572a3db8) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000555556344352 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x5555572a3db0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555563401db in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x5555572a3d80) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#8  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffe3fff640 (LWP 77567) "PeakFileBuilder"):
#0  0x00007fffecca5a9d in syscall () from /usr/lib/libc.so.6
#1  0x00007ffff2fb0e4c in g_cond_wait () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff71dcd04 in peak_thread_work () at ../libs/ardour/source_factory.cc:74
#3  0x000055555634721f in sigc::pointer_functor0<void>::operator() (this=0x555557149558) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000555556344352 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x555557149550) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#5  0x00005555563401db in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x555557149520) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff34f9c4d in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff2f8f1e5 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#8  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffe8ca3640 (LWP 77566) "LXVSTEventLoop"):
#0  0x00007fffecc73125 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007fffecc78357 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007ffff2f90a38 in g_usleep () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#3  0x000055555672511a in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:468
#4  0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffeccab053 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fffe916f900 (LWP 77565) "ArdourGUI"):
#0  0x00007ffff2d0720c in sigc::internal::trackable_callback_list::remove_callback(void*) () from /opt/Ardour-6.6.56-dbg/lib/libsigc-2.0.so.0
#1  0x0000555555a6f2be in sigc::internal::slot_do_unbind::operator() (this=0x7fffffffaf68, t=0x555568351c08) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot_base.h:166
#2  0x0000555555a7322d in sigc::internal::with_type_pointer<true, sigc::trackable, sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind> >::execute_ (_A_type=..., _A_action=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:86
#3  0x0000555555a731e1 in sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind>::operator()<sigc::trackable> (this=0x7fffffffaf68, _A_type=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:97
#4  0x0000555555a73195 in sigc::visitor<sigc::trackable>::do_visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind> > (_A_action=..., _A_functor=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:159
#5  0x0000555555a73149 in sigc::visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind>, sigc::trackable> (_A_action=..., _A_functor=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:169
#6  0x00005555560f6210 in sigc::visitor<sigc::limit_reference<MidiTimeAxisView, true> >::do_visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind> > (_A_action=..., _A_target=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/limit_reference.h:122
#7  0x00005555560f5d81 in sigc::visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind>, sigc::limit_reference<MidiTimeAxisView, true> > (_A_action=..., _A_functor=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:169
#8  0x00005555560f6479 in sigc::visitor<sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&> >::do_visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind> > (_A_action=..., _A_target=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1950
#9  0x00005555560f60e8 in sigc::visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind>, sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&> > (_A_action=..., _A_functor=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:169
#10 0x00005555560f5c33 in sigc::visitor<sigc::adaptor_functor<sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&> > >::do_visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind> > (_A_action=..., _A_target=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:273
#11 0x00005555560f567f in sigc::visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind>, sigc::adaptor_functor<sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&> > > (_A_action=..., _A_functor=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:169
#12 0x00005555560f4f1b in sigc::visitor<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&>, sigc::reference_wrapper<std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > > >, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil> >::do_visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind> > (_A_action=..., _A_target=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/bind.h:1294
#13 0x00005555560f4261 in sigc::visit_each<sigc::internal::limit_derived_target<sigc::trackable*, sigc::internal::slot_do_unbind>, sigc::bind_functor<-1, sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&>, sigc::reference_wrapper<std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > > >, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil> > (_A_action=..., _A_functor=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:169
#14 0x00005555560f3133 in sigc::visit_each_type<sigc::trackable*, sigc::internal::slot_do_unbind, sigc::bind_functor<-1, sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&>, sigc::reference_wrapper<std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > > >, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil> > (_A_action=..., _A_functor=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/visit_each.h:201
#15 0x00005555560f18d3 in sigc::internal::typed_slot_rep<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, MidiTimeAxisView, RegionView*, std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > >&>, sigc::reference_wrapper<std::__cxx11::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >, std::allocator<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> >, std::less<boost::shared_ptr<Evoral::Note<Temporal::Beats> > >, std::allocator<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > > > >, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil> >::destroy (data=0x5555822492e0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:60
#16 0x00007ffff2d07537 in sigc::slot_base::~slot_base() () from /opt/Ardour-6.6.56-dbg/lib/libsigc-2.0.so.0
#17 0x0000555555ba1aba in sigc::slot1<void, RegionView*>::~slot1 (this=0x7fffffffb020, __in_chrg=<optimized out>) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:493
#18 0x0000555555ba1ad6 in sigc::slot<void, RegionView*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::~slot (this=0x7fffffffb020, __in_chrg=<optimized out>) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:1148
#19 0x00005555560e87f7 in MidiTimeAxisView::get_per_region_note_selection (this=0x55556834f7b0, selection=empty std::__cxx11::list) at ../gtk2_ardour/midi_time_axis.cc:1520
#20 0x0000555555c4faac in Editor::get_per_region_note_selection (this=0x55555a0e6090, selection=empty std::__cxx11::list) at ../gtk2_ardour/editor.cc:5114
#21 0x00005555564ffdff in Selection::get_state (this=0x555557de0610) at ../gtk2_ardour/selection.cc:1090
#22 0x000055555650e999 in SelectionMemento::get_state (this=0x55555b18ec00) at ../gtk2_ardour/selection_memento.cc:45
#23 0x0000555555c457dd in Editor::begin_selection_op_history (this=0x55555a0e6090) at ../gtk2_ardour/editor.cc:3466
#24 0x0000555555c45f94 in Editor::commit_reversible_command (this=0x55555a0e6090) at ../gtk2_ardour/editor.cc:3593
#25 0x0000555555ceb0ce in RegionMoveDrag::finished_no_copy (this=0x555655dc8c90, changed_position=true, changed_tracks=false, last_position=..., ev_state=256) at ../gtk2_ardour/editor_drag.cc:1868
#26 0x0000555555ce88d9 in RegionMoveDrag::finished (this=0x555655dc8c90, ev=0x7fffffffc1a0, movement_occurred=true) at ../gtk2_ardour/editor_drag.cc:1486
#27 0x0000555555ce39cb in Drag::end_grab (this=0x555655dc8c90, event=0x7fffffffc1a0) at ../gtk2_ardour/editor_drag.cc:352
#28 0x0000555555ce31b3 in DragManager::end_grab (this=0x555559900750, e=0x7fffffffc1a0) at ../gtk2_ardour/editor_drag.cc:183
#29 0x0000555555d4931b in Editor::button_release_handler (this=0x55555a0e6090, item=0x55564cb0fd60, event=0x7fffffffc1a0, item_type=RegionItem) at ../gtk2_ardour/editor_mouse.cc:1488
#30 0x0000555555cdc876 in Editor::canvas_region_view_event (this=0x55555a0e6090, event=0x7fffffffc1a0, item=0x55564cb0fd60, rv=0x55564b448ac0) at ../gtk2_ardour/editor_canvas_events.cc:271
#31 0x0000555556472c45 in RegionView::canvas_group_event (this=0x55564b448ac0, event=0x7fffffffc1a0) at ../gtk2_ardour/region_view.cc:254
#32 0x000055555662aa50 in sigc::bound_mem_functor1<bool, TimeAxisViewItem, _GdkEvent*>::operator() (this=0x555640681d38, _A_a1=@0x7fffffffbf30: 0x7fffffffc1a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1856
#33 0x000055555662a6fb in sigc::adaptor_functor<sigc::bound_mem_functor1<bool, TimeAxisViewItem, _GdkEvent*> >::operator()<_GdkEvent* const&> (this=0x555640681d30, _A_arg1=@0x7fffffffbf30: 0x7fffffffc1a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:89
#34 0x000055555662a0cc in sigc::internal::slot_call1<sigc::bound_mem_functor1<bool, TimeAxisViewItem, _GdkEvent*>, bool, _GdkEvent*>::call_it (rep=0x555640681d00, a_1=@0x7fffffffbf30: 0x7fffffffc1a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:137
#35 0x00007ffff4ca2109 in sigc::internal::signal_emit1<bool, _GdkEvent*, ArdourCanvas::Item::EventAccumulator<bool> >::operator() (this=0x7fffffffbe08, _A_slot=...) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:830
#36 0x00007ffff4ca1cdb in sigc::internal::slot_iterator_buf<sigc::internal::signal_emit1<bool, _GdkEvent*, ArdourCanvas::Item::EventAccumulator<bool> >, bool>::operator* (this=0x7fffffffbdc0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:302
#37 0x00007ffff4ca154b in ArdourCanvas::Item::EventAccumulator<bool>::operator()<sigc::internal::slot_iterator_buf<sigc::internal::signal_emit1<bool, _GdkEvent*, ArdourCanvas::Item::EventAccumulator<bool> >, bool> > (this=0x7fffffffbe2f, first=..., last=...) at ../libs/canvas/canvas/item.h:239
#38 0x00007ffff4ca0a49 in sigc::internal::signal_emit1<bool, _GdkEvent*, ArdourCanvas::Item::EventAccumulator<bool> >::emit (impl=0x55564a894b40, _A_a1=@0x7fffffffbf30: 0x7fffffffc1a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:850
#39 0x00007ffff4c9f51b in sigc::signal1<bool, _GdkEvent*, ArdourCanvas::Item::EventAccumulator<bool> >::emit (this=0x55564cb0fdd0, _A_a1=@0x7fffffffbf30: 0x7fffffffc1a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2797
#40 0x00007ffff4c9db33 in sigc::signal1<bool, _GdkEvent*, ArdourCanvas::Item::EventAccumulator<bool> >::operator() (this=0x55564cb0fdd0, _A_a1=@0x7fffffffbf30: 0x7fffffffc1a0) at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/signal.h:2805
#41 0x00007ffff4c98c0b in ArdourCanvas::GtkCanvas::deliver_event (this=0x55555952e818, event=0x7fffffffc1a0) at ../libs/canvas/canvas.cc:773
#42 0x00007ffff4c9a4f9 in ArdourCanvas::GtkCanvas::on_button_release_event (this=0x55555952e818, ev=0x55563cc500e0) at ../libs/canvas/canvas.cc:1081
#43 0x00007ffff072ce28 in Gtk::Widget_Class::button_release_event_callback(_GtkWidget*, _GdkEventButton*) () from /opt/Ardour-6.6.56-dbg/lib/libgtkmm-2.4.so.1
#44 0x00007ffff2552cac in ?? () from /opt/Ardour-6.6.56-dbg/lib/libgtk-x11-2.0.so.0
#45 0x00007ffff326e945 in g_closure_invoke () from /opt/Ardour-6.6.56-dbg/lib/libgobject-2.0.so.0
#46 0x00007ffff32805a0 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libgobject-2.0.so.0
#47 0x00007ffff328969b in g_signal_emit_valist () from /opt/Ardour-6.6.56-dbg/lib/libgobject-2.0.so.0
#48 0x00007ffff328a082 in g_signal_emit () from /opt/Ardour-6.6.56-dbg/lib/libgobject-2.0.so.0
#49 0x00007ffff26d764c in ?? () from /opt/Ardour-6.6.56-dbg/lib/libgtk-x11-2.0.so.0
#50 0x00007ffff255129d in gtk_propagate_event () from /opt/Ardour-6.6.56-dbg/lib/libgtk-x11-2.0.so.0
#51 0x00007ffff2551723 in gtk_main_do_event () from /opt/Ardour-6.6.56-dbg/lib/libgtk-x11-2.0.so.0
#52 0x00007ffff216db4c in ?? () from /opt/Ardour-6.6.56-dbg/lib/libgdk-x11-2.0.so.0
#53 0x00007ffff2f5fb67 in g_main_context_dispatch () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#54 0x00007ffff2f5fdd0 in ?? () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#55 0x00007ffff2f600f2 in g_main_loop_run () from /opt/Ardour-6.6.56-dbg/lib/libglib-2.0.so.0
#56 0x00007ffff25503e7 in gtk_main () from /opt/Ardour-6.6.56-dbg/lib/libgtk-x11-2.0.so.0
#57 0x00007ffff457d0e4 in Gtkmm2ext::UI::run (this=0x5555574d6990, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:310
#58 0x0000555556079b7b in main (argc=1, argv=0x7fffffffcdc8) at ../gtk2_ardour/main.cc:410
(gdb) bt
#0  0x00007fffecbe8ef5 in raise () from /usr/lib/libc.so.6
#1  0x00007fffecbd2862 in abort () from /usr/lib/libc.so.6
#2  0x00007fffecbd2747 in __assert_fail_base.cold () from /usr/lib/libc.so.6
#3  0x00007fffecbe1646 in __assert_fail () from /usr/lib/libc.so.6
#4  0x00007ffff6a637a7 in ARDOUR::AudioRegion::read_at (this=0x7fff880dbe50, buf=0x7ffe76953bcc, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, position=6324160, cnt=73792, chan_n=1) at ../libs/ardour/audioregion.cc:504
#5  0x00007ffff6a199c7 in ARDOUR::AudioPlaylist::read (this=0x5555822d1f40, buf=0x7ffe76948fd0, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, start=6313153, cnt=516096, chan_n=1) at ../libs/ardour/audio_playlist.cc:263
#6  0x00007ffff6af27d4 in ARDOUR::DiskReader::audio_read (this=0x55560bf041c0, sum_buffer=0x7ffe76948fd0, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, start=@0x7fffc97c3538: 6313153, cnt=516096, rci=0x55563989fee0, 
    channel=1, reversed=false) at ../libs/ardour/disk_reader.cc:1048
#7  0x00007ffff6af39bc in ARDOUR::DiskReader::refill_audio (this=0x55560bf041c0, sum_buffer=0x7ffe76948fd0, mixdown_buffer=0x7ffe77148fe0, gain_buffer=0x5556610829a0, fill_level=0, reversed=false) at ../libs/ardour/disk_reader.cc:1306
#8  0x00007ffff6af2cf0 in ARDOUR::DiskReader::do_refill_with_alloc (this=0x55560bf041c0, partial_fill=false, reversed=false) at ../libs/ardour/disk_reader.cc:1119
#9  0x00007ffff6af21a9 in ARDOUR::DiskReader::seek (this=0x55560bf041c0, sample=6313153, complete_refill=true) at ../libs/ardour/disk_reader.cc:886
#10 0x00007ffff6ae7364 in ARDOUR::DiskIOProcessor::non_realtime_locate (this=0x55560bf041c0, location=6321344) at ../libs/ardour/disk_io.cc:214
#11 0x00007ffff7064c66 in ARDOUR::Route::non_realtime_locate (this=0x55560bdc0040, pos=6321344) at ../libs/ardour/route.cc:5387
#12 0x00007ffff72116b9 in ARDOUR::Track::non_realtime_locate (this=0x55560bdc0040, p=6321344) at ../libs/ardour/track.cc:534
#13 0x00007ffff71b1677 in ARDOUR::Session::non_realtime_stop (this=0x555557e43250, abort=false, on_entry=1, finished=@0x7fffc97c404f: true) at ../libs/ardour/session_transport.cc:1548
#14 0x00007ffff71afdea in ARDOUR::Session::butler_transport_work (this=0x555557e43250, have_process_lock=false) at ../libs/ardour/session_transport.cc:1223
#15 0x00007ffff6ab9616 in ARDOUR::Butler::thread_work (this=0x55555c8cfb80) at ../libs/ardour/butler.cc:205
#16 0x00007ffff6ab8ed1 in ARDOUR::Butler::_thread_work (arg=0x55555c8cfb80) at ../libs/ardour/butler.cc:153
#17 0x00007ffff41d2cf0 in fake_thread_start (arg=0x555562004a70) at ../libs/pbd/pthread_utils.cc:113
#18 0x00007fffef075299 in start_thread () from /usr/lib/libpthread.so.0
#19 0x00007fffeccab053 in clone () from /usr/lib/libc.so.6
(gdb)