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Crashing Ardour 5 #16

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unfa opened this issue Oct 22, 2016 · 0 comments
Open

Crashing Ardour 5 #16

unfa opened this issue Oct 22, 2016 · 0 comments

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@unfa
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unfa commented Oct 22, 2016 •
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I was playing DrMr Sampler with a MIDI controller, while suddenly Ardour crashed.
As I was running a debug build, here's the full GDB backtrace from Ardour-5.4.40-dbg:

(gdb) thread apply all bt

Thread 157 (Thread 0x7fffc4cfd700 (LWP 25837)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffb21f590d in ?? () from /usr/lib/lv2/drmr.lv2/drmr.so
#2  0x00007fffef5b06fa in start_thread (arg=0x7fffc4cfd700)
    at pthread_create.c:333
#3  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 57 (Thread 0x7fffc54fe700 (LWP 30285)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff3882fcc in g_cond_wait ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff79064e3 in ArdourCanvas::WaveView::drawing_thread ()
    at ../libs/canvas/wave_view.cc:1565
#3  0x0000000000e535fd in sigc::pointer_functor0<void>::operator() (
    this=0xc47f798)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000000000e507a0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0xc47f790)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/---Type <return> to continue, or q <return> to quit---
adaptor_trait.h:251
#5  0x0000000000e4c84b in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0xc47f760)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#8  0x00007fffef5b06fa in start_thread (arg=0x7fffc54fe700)
    at pthread_create.c:333
#9  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 56 (Thread 0x7fff837fe700 (LWP 30206)):
#0  0x00007fffef5b9c5d in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff3862a48 in g_usleep ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff63d97c1 in ARDOUR::AutomationWatch::thread (this=0x2ed9390)
    at ../libs/ardour/automation_watch.cc:153
#3  0x00007ffff63dcd41 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0x9624ae0, p=0x2ed9390)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.---Type <return> to continue, or q <return> to quit---
hpp:49
#4  0x00007ffff63dc926 in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0x9624af0, f=..., a=...)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:253
#5  0x00007ffff63dc3a7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0x9624ae0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff63dc334 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=0x9624ae0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#7  0x00007ffff63dbe4a 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=0x9624ab0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff3861225 in ?? ()
---Type <return> to continue, or q <return> to quit---
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef5b06fa in start_thread (arg=0x7fff837fe700)
    at pthread_create.c:333
#11 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 55 (Thread 0x7fffb37fe700 (LWP 30205)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff6883b09 in ARDOUR::Session::auto_connect_thread_run (
    this=0x2f92b80) at ../libs/ardour/session.cc:7093
#2  0x00007ffff688387e in ARDOUR::Session::auto_connect_thread (arg=0x2f92b80)
    at ../libs/ardour/session.cc:7047
#3  0x00007fffef5b06fa in start_thread (arg=0x7fffb37fe700)
    at pthread_create.c:333
#4  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 54 (Thread 0x7fff82ffd700 (LWP 30204)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff68f4a95 in ARDOUR::Session::emit_thread_run (this=0x2f92b80)
    at ../libs/ardour/session_process.cc:1316
---Type <return> to continue, or q <return> to quit---
#2  0x00007ffff68f4a32 in ARDOUR::Session::emit_thread (arg=0x2f92b80)
    at ../libs/ardour/session_process.cc:1305
#3  0x00007fffef5b06fa in start_thread (arg=0x7fff82ffd700)
    at pthread_create.c:333
#4  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 48 (Thread 0x7fffb0feb700 (LWP 29784)):
#0  0x00007fffec2a4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff3831674 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff38319f2 in g_main_loop_run ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff4a620fb in BaseUI::main_thread (this=0x3f1add0)
    at ../libs/pbd/base_ui.cc:86
#4  0x00007ffff4a66140 in sigc::bound_mem_functor0<void, BaseUI>::operator() (
    this=0x3f1b558)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff4a65d72 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x3f1b550)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
---Type <return> to continue, or q <return> to quit---
#6  0x00007ffff4a65821 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x3f1b520)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef5b06fa in start_thread (arg=0x7fffb0feb700)
    at pthread_create.c:333
#10 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 47 (Thread 0x7fffc40db800 (LWP 29783)):
#0  0x00007fffec2a4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff4a77f00 in CrossThreadChannel::poll_for_request (this=0x2f1c7d8)
    at ../libs/pbd/crossthread.posix.cc:75
#2  0x00007ffff4a77f69 in CrossThreadChannel::receive (this=0x2f1c7d8, 
    msg=@0x7fffc40da46f: 0 '\000', wait=true)
    at ../libs/pbd/crossthread.posix.cc:96
#3  0x00007ffff63ecf8c in ARDOUR::Butler::thread_work (this=0x2f1c740)
    at ../libs/ardour/butler.cc:175
#4  0x00007ffff63ecd0d in ARDOUR::Butler::_thread_work (arg=0x2f1c740)
---Type <return> to continue, or q <return> to quit---
    at ../libs/ardour/butler.cc:156
#5  0x00007ffff4a99eb6 in fake_thread_start (arg=0x3f1abc0)
    at ../libs/pbd/pthread_utils.cc:101
#6  0x00007fffef5b06fa in start_thread (arg=0x7fffc40db800)
    at pthread_create.c:333
#7  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 46 (Thread 0x7fffc435f700 (LWP 29774)):
#0  0x00007fffb21f63fd in ?? () from /usr/lib/lv2/drmr.lv2/drmr.so
#1  0x00007fffb21f691c in ?? () from /usr/lib/lv2/drmr.lv2/drmr.so
#2  0x00007ffff69bf801 in lilv_instance_run (instance=0xe100a70, 
    sample_count=256)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/lilv-0/lilv/lilv.h:1662
#3  0x00007ffff69cedaa in ARDOUR::LV2Plugin::run (this=0xe204a80, nframes=256, 
    sync_work=false) at ../libs/ardour/lv2_plugin.cc:2878
#4  0x00007ffff69cca40 in ARDOUR::LV2Plugin::connect_and_run (this=0xe204a80, 
    bufs=..., start=4067584, end=4067840, speed=0, in_map=..., out_map=..., 
    nframes=256, offset=0) at ../libs/ardour/lv2_plugin.cc:2539
#5  0x00007ffff67873a4 in ARDOUR::PluginInsert::connect_and_run (
    this=0xe3c2890, bufs=..., start=4067584, end=4067840, speed=0, 
    nframes=256, offset=0, with_auto=true)
    at ../libs/ardour/plugin_insert.cc:904
---Type <return> to continue, or q <return> to quit---
#6  0x00007ffff678888f in ARDOUR::PluginInsert::run (this=0xe3c2890, bufs=..., 
    start_frame=4067584, end_frame=4067840, speed=0, nframes=256)
    at ../libs/ardour/plugin_insert.cc:1095
#7  0x00007ffff6810180 in ARDOUR::Route::process_output_buffers (
    this=0xdf2ff60, bufs=..., start_frame=4067584, end_frame=4067840, 
    nframes=256, declick=0, gain_automation_ok=true)
    at ../libs/ardour/route.cc:450
#8  0x00007ffff6811252 in ARDOUR::Route::passthru (this=0xdf2ff60, bufs=..., 
    start_frame=4067584, end_frame=4067840, nframes=256, declick=0)
    at ../libs/ardour/route.cc:608
#9  0x00007ffff69aabb3 in ARDOUR::Track::no_roll (this=0xdf2ff60, nframes=256, 
    start_frame=4067584, end_frame=4067840, session_state_changing=false)
    at ../libs/ardour/track.cc:480
#10 0x00007ffff670de33 in ARDOUR::MidiTrack::no_roll (this=0xdf2ff60, 
    nframes=256, start_frame=4067584, end_frame=4067840, state_changing=false)
    at ../libs/ardour/midi_track.cc:457
#11 0x00007ffff64df539 in ARDOUR::Graph::process_one_route (this=0x442b6c0, 
    route=0xdf2ff60) at ../libs/ardour/graph.cc:585
#12 0x00007ffff64e4c62 in ARDOUR::GraphNode::process (this=0xdf30268)
    at ../libs/ardour/graphnode.cc:79
#13 0x00007ffff64dda97 in ARDOUR::Graph::run_one (this=0x442b6c0)
    at ../libs/ardour/graph.cc:400
#14 0x00007ffff64ddcc6 in ARDOUR::Graph::helper_thread (this=0x442b6c0)
---Type <return> to continue, or q <return> to quit---
    at ../libs/ardour/graph.cc:418
#15 0x00007ffff64e428d in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffc435ed58, p=0x442b6c0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#16 0x00007ffff64e3988 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffc435ed68, f=..., a=...)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:253
#17 0x00007ffff64e2dfb in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffc435ed58)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind_template.hpp:20
#18 0x00007ffff64e267d 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:153
#19 0x0000000000733cf2 in boost::function0<void>::operator() (
    this=0x7fffc435ed50)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:760
---Type <return> to continue, or q <return> to quit---
#20 0x00007fffd5ae8c29 in ARDOUR::JACKAudioBackend::_start_process_thread (
    arg=0x20d71f0) at ../libs/backends/jack/jack_audiobackend.cc:936
#21 0x00007fffef5b06fa in start_thread (arg=0x7fffc435f700)
    at pthread_create.c:333
#22 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 45 (Thread 0x7fffc43e0700 (LWP 29773)):
#0  0x00007fffef5b8867 in futex_abstimed_wait_cancelable (private=0, 
    abstime=0x0, expected=0, futex_word=0x442b798)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  do_futex_wait (sem=sem@entry=0x442b798, abstime=0x0)
    at sem_waitcommon.c:111
#2  0x00007fffef5b8914 in __new_sem_wait_slow (sem=0x442b798, abstime=0x0)
    at sem_waitcommon.c:181
#3  0x00007fffef5b89ba in __new_sem_wait (sem=<optimized out>) at sem_wait.c:29
#4  0x00007ffff64df796 in PBD::Semaphore::wait (this=0x442b798)
    at /home/ardour/linux-x86_64-v5/ardour/libs/pbd/pbd/semutils.h:61
#5  0x00007ffff64dd908 in ARDOUR::Graph::run_one (this=0x442b6c0)
    at ../libs/ardour/graph.cc:387
#6  0x00007ffff64ddcc6 in ARDOUR::Graph::helper_thread (this=0x442b6c0)
    at ../libs/ardour/graph.cc:418
#7  0x00007ffff64e428d in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
---Type <return> to continue, or q <return> to quit---
    this=0x7fffc43dfd58, p=0x442b6c0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#8  0x00007ffff64e3988 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffc43dfd68, f=..., a=...)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:253
#9  0x00007ffff64e2dfb in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffc43dfd58)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind_template.hpp:20
#10 0x00007ffff64e267d 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:153
#11 0x0000000000733cf2 in boost::function0<void>::operator() (
    this=0x7fffc43dfd50)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:760
#12 0x00007fffd5ae8c29 in ARDOUR::JACKAudioBackend::_start_process_thread (
    arg=0x20d71f0) at ../libs/backends/jack/jack_audiobackend.cc:936
---Type <return> to continue, or q <return> to quit---
#13 0x00007fffef5b06fa in start_thread (arg=0x7fffc43e0700)
    at pthread_create.c:333
#14 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 44 (Thread 0x7fffc4461700 (LWP 29772)):
#0  0x00007fffef5b8867 in futex_abstimed_wait_cancelable (private=0, 
    abstime=0x0, expected=0, futex_word=0x442b798)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  do_futex_wait (sem=sem@entry=0x442b798, abstime=0x0)
    at sem_waitcommon.c:111
#2  0x00007fffef5b8914 in __new_sem_wait_slow (sem=0x442b798, abstime=0x0)
    at sem_waitcommon.c:181
#3  0x00007fffef5b89ba in __new_sem_wait (sem=<optimized out>) at sem_wait.c:29
#4  0x00007ffff64df796 in PBD::Semaphore::wait (this=0x442b798)
    at /home/ardour/linux-x86_64-v5/ardour/libs/pbd/pbd/semutils.h:61
#5  0x00007ffff64dd908 in ARDOUR::Graph::run_one (this=0x442b6c0)
    at ../libs/ardour/graph.cc:387
#6  0x00007ffff64ddf8b in ARDOUR::Graph::main_thread (this=0x442b6c0)
    at ../libs/ardour/graph.cc:457
#7  0x00007ffff64e428d in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (
    this=0x7fffc4460d58, p=0x442b6c0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.---Type <return> to continue, or q <return> to quit---
hpp:49
#8  0x00007ffff64e3988 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (
    this=0x7fffc4460d68, f=..., a=...)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:253
#9  0x00007ffff64e2dfb in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (
    this=0x7fffc4460d58)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind_template.hpp:20
#10 0x00007ffff64e267d 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:153
#11 0x0000000000733cf2 in boost::function0<void>::operator() (
    this=0x7fffc4460d50)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/function/function_template.hpp:760
#12 0x00007fffd5ae8c29 in ARDOUR::JACKAudioBackend::_start_process_thread (
    arg=0x20d71f0) at ../libs/backends/jack/jack_audiobackend.cc:936
#13 0x00007fffef5b06fa in start_thread (arg=0x7fffc4461700)
    at pthread_create.c:333
---Type <return> to continue, or q <return> to quit---
#14 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7fffc5ed3700 (LWP 29098)):
#0  0x00007fffef5b8867 in futex_abstimed_wait_cancelable (private=0, 
    abstime=0x0, expected=0, futex_word=0x442b7d8)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  do_futex_wait (sem=sem@entry=0x442b7d8, abstime=0x0)
    at sem_waitcommon.c:111
#2  0x00007fffef5b8914 in __new_sem_wait_slow (sem=0x442b7d8, abstime=0x0)
    at sem_waitcommon.c:181
#3  0x00007fffef5b89ba in __new_sem_wait (sem=<optimized out>) at sem_wait.c:29
#4  0x00007ffff64df796 in PBD::Semaphore::wait (this=0x442b7d8)
    at /home/ardour/linux-x86_64-v5/ardour/libs/pbd/pbd/semutils.h:61
#5  0x00007ffff64df286 in ARDOUR::Graph::routes_no_roll (this=0x442b6c0, 
    nframes=256, start_frame=4067584, end_frame=4067840, non_rt_pending=false, 
    declick=0) at ../libs/ardour/graph.cc:567
#6  0x00007ffff68efc58 in ARDOUR::Session::no_roll (this=0x2f92b80, 
    nframes=256) at ../libs/ardour/session_process.cc:147
#7  0x00007ffff68efa0c in ARDOUR::Session::fail_roll (this=0x2f92b80, 
    nframes=256) at ../libs/ardour/session_process.cc:126
#8  0x00007ffff68f32b3 in ARDOUR::Session::process_without_events (
    this=0x2f92b80, nframes=256) at ../libs/ardour/session_process.cc:833
---Type <return> to continue, or q <return> to quit---
#9  0x00007ffff68f0b3a in ARDOUR::Session::process_with_events (
    this=0x2f92b80, nframes=256) at ../libs/ardour/session_process.cc:362
#10 0x00007ffff68ef743 in ARDOUR::Session::process (this=0x2f92b80, 
    nframes=256) at ../libs/ardour/session_process.cc:76
#11 0x00007ffff6383773 in ARDOUR::AudioEngine::process_callback (
    this=0x1bdb2e0, nframes=256) at ../libs/ardour/audioengine.cc:375
#12 0x00007fffd5ae8cf3 in ARDOUR::JACKAudioBackend::process_thread (
    this=0x1da5640) at ../libs/backends/jack/jack_audiobackend.cc:967
#13 0x00007fffd5ae8c78 in ARDOUR::JACKAudioBackend::_process_thread (
    arg=0x1da5640) at ../libs/backends/jack/jack_audiobackend.cc:944
#14 0x00007fffd583363a in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#15 0x00007fffd5855ad0 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#16 0x00007fffef5b06fa in start_thread (arg=0x7fffc5ed3700)
    at pthread_create.c:333
#17 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7fffc7d17700 (LWP 29095)):
#0  0x00007fffef5b955d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fffd58572b5 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd585a94b in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd5855ad0 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffef5b06fa in start_thread (arg=0x7fffc7d17700)
---Type <return> to continue, or q <return> to quit---
    at pthread_create.c:333
#5  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7fffc7d98700 (LWP 29094)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffd58568fc in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#2  0x00007fffd5849858 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#3  0x00007fffd5855ad0 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0
#4  0x00007fffef5b06fa in start_thread (arg=0x7fffc7d98700)
    at pthread_create.c:333
#5  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fffc6ef9700 (LWP 24403)):
#0  0x00007fffec2a4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff3831674 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff383177c in g_main_context_iteration ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff38317b9 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#4  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#5  0x00007fffef5b06fa in start_thread (arg=0x7fffc6ef9700)
    at pthread_create.c:333
#6  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fffd6cf9700 (LWP 24356)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff3882fcc in g_cond_wait ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6384006 in ARDOUR::AudioEngine::do_devicelist_update (
    this=0x1bdb2e0) at ../libs/ardour/audioengine.cc:560
#3  0x00007ffff638ebf5 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x1a0b490, p=0x1bdb2e0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff638e69a in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x1a0b4a0, f=..., a=...)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:253
#5  0x00007ffff638dcf3 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::o---Type <return> to continue, or q <return> to quit---
perator() (this=0x1a0b490)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff638d67c 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=0x1a0b490)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#7  0x00007ffff638c968 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=0x1a0b460)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef5b06fa in start_thread (arg=0x7fffd6cf9700)
    at pthread_create.c:333
#11 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fffd74fa700 (LWP 24355)):
---Type <return> to continue, or q <return> to quit---
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff3882fcc in g_cond_wait ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff6383de0 in ARDOUR::AudioEngine::do_reset_backend (
    this=0x1bdb2e0) at ../libs/ardour/audioengine.cc:525
#3  0x00007ffff638ebf5 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x1a0b440, p=0x1bdb2e0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff638e69a in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x1a0b450, f=..., a=...)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind.hpp:253
#5  0x00007ffff638dcf3 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x1a0b440)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff638d67c 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=0x1a0b440)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
---Type <return> to continue, or q <return> to quit---
#7  0x00007ffff638c968 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=0x1a0b410)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#9  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#10 0x00007fffef5b06fa in start_thread (arg=0x7fffd74fa700)
    at pthread_create.c:333
#11 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fffe5db9700 (LWP 24242)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff3882fcc in g_cond_wait ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff631d466 in ARDOUR::Analyser::work ()
    at ../libs/ardour/analyser.cc:87
#3  0x00007ffff631d252 in analyser_work () at ../libs/ardour/analyser.cc:52
#4  0x0000000000e535fd in sigc::pointer_functor0<void>::operator() (
    this=0x19bd7a8)
---Type <return> to continue, or q <return> to quit---
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x0000000000e507a0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x19bd7a0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x0000000000e4c84b in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x19bd770)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#8  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#9  0x00007fffef5b06fa in start_thread (arg=0x7fffe5db9700)
    at pthread_create.c:333
#10 0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fffe65ba700 (LWP 24241)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff3882fcc in g_cond_wait ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#2  0x00007ffff697c89e in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:71
#3  0x0000000000e535fd in sigc::pointer_functor0<void>::operator() (
    this=0x1964c28)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000000000e507a0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x1964c20)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x0000000000e4c84b in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x1964bf0)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#8  0x00007fffef5b06fa in start_thread (arg=0x7fffe65ba700)
    at pthread_create.c:333
#9  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

---Type <return> to continue, or q <return> to quit---
Thread 3 (Thread 0x7fffe6dbb700 (LWP 24240)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff3882fcc in g_cond_wait ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff697c89e in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:71
#3  0x0000000000e535fd in sigc::pointer_functor0<void>::operator() (
    this=0x19be578)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000000000e507a0 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x19be570)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x0000000000e4c84b in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x19be540)
    at /home/ardour/linux-x86_64-v5/gtk/inst/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff3dcb23d in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglibmm-2.4.so.1
#7  0x00007ffff3861225 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#8  0x00007fffef5b06fa in start_thread (arg=0x7fffe6dbb700)
---Type <return> to continue, or q <return> to quit---
    at pthread_create.c:333
#9  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fffe75bc700 (LWP 24239)):
#0  0x00007fffef5b9c5d in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff3862a48 in g_usleep ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x000000000114289d in gui_event_loop (ptr=0x0)
    at ../gtk2_ardour/linux_vst_gui_support.cc:475
#3  0x00007fffef5b06fa in start_thread (arg=0x7fffe75bc700)
    at pthread_create.c:333
#4  0x00007fffec2b0b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ffff7f9e8c0 (LWP 23735)):
#0  0x00007fffec2a4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff3831674 in ?? ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#2  0x00007ffff38319f2 in g_main_loop_run ()
   from /opt/Ardour-5.4.40-dbg/lib/libglib-2.0.so.0
#3  0x00007ffff2e27597 in gtk_main ()
   from /opt/Ardour-5.4.40-dbg/lib/libgtk-x11-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#4  0x00007ffff75076fa in Gtkmm2ext::UI::run (this=0x1bfb4d0, old_receiver=...)
    at ../libs/gtkmm2ext/gtk_ui.cc:286
#5  0x0000000000bfccd3 in main (argc=1, argv=0x7fffffffdc48)
    at ../gtk2_ardour/main.cc:408
(gdb)
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