Thread 12 (Thread 17650):
#0  0x00007fdc39d5c13d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdc39d8d564 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x0000000001594930 in gui_event_loop (ptr=0x0)
    at ../gtk2_ardour/linux_vst_gui_support.cc:363
#3  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 11 (Thread 17821):
#0  0x00007fdc3a051cbd in read () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdc3bf605da in ?? () from /usr/lib/libjack.so.0
#2  0x00007fdc3bf62f67 in ?? () from /usr/lib/libjack.so.0
#3  0x00007fdc3bf5e840 in ?? () from /usr/lib/libjack.so.0
#4  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

---Type <return> to continue, or q <return> to quit---
Thread 10 (Thread 17872):
#0  0x00007fdc39d87ae3 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdc446d57c7 in ARDOUR::Butler::thread_work (this=0x3e28400)
    at ../libs/ardour/butler.cc:150
#2  0x00007fdc446d572f in ARDOUR::Butler::_thread_work (arg=0x3e28400)
    at ../libs/ardour/butler.cc:134
#3  0x00007fdc43046a3c in fake_thread_start (arg=0x5280280)
    at ../libs/pbd/pthread_utils.cc:80
#4  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 9 (Thread 17820):
#0  0x00007fdc3a04ebac in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdc3bf60041 in ?? () from /usr/lib/libjack.so.0
#2  0x00007fdc3bf5b2e5 in ?? () from /usr/lib/libjack.so.0
#3  0x00007fdc3bf5e840 in ?? () from /usr/lib/libjack.so.0
#4  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#5  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 8 (Thread 17655):
#0  0x00007fdc39d87ae3 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdc40fd7104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdc40fd79f2 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdc40206c44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fdc40ffe3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 7 (Thread 17653):
#0  0x00007fdc3a04ebac in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdc4463243b in ARDOUR::Analyser::work ()
    at ../libs/ardour/analyser.cc:82
#2  0x00007fdc446321cd in analyser_work () at ../libs/ardour/analyser.cc:46

---Type <return> to continue, or q <return> to quit---
#3  0x0000000001342e65 in sigc::pointer_functor0<void>::operator() (
    this=0x2993208) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x0000000001340686 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x2993200)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x000000000133d257 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x29931d0)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007fdc41b21c3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#7  0x00007fdc40ffe3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 6 (Thread 17873):
#0  0x00007fdc39d87ae3 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdc40fd7104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdc40fd79f2 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdc43020484 in BaseUI::main_thread (this=0x7fdc28039810)
---Type <return> to continue, or q <return> to quit---
    at ../libs/pbd/base_ui.cc:80
#4  0x00007fdc43023bb3 in sigc::bound_mem_functor0<void, BaseUI>::operator() (
    this=0x7fdc28033898)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007fdc430238ee in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x7fdc28033890)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x00007fdc430232d1 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x7fdc28033860)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007fdc41b21c3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#8  0x00007fdc40ffe3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 17652):
#0  0x00007fdc3a04ebac in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdc449f7525 in peak_thread_work ()
---Type <return> to continue, or q <return> to quit---
    at ../libs/ardour/source_factory.cc:68
#2  0x0000000001342e65 in sigc::pointer_functor0<void>::operator() (
    this=0x29abfa8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#3  0x0000000001340686 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x29abfa0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#4  0x000000000133d257 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x29abf70)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#5  0x00007fdc41b21c3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#6  0x00007fdc40ffe3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 4 (Thread 17651):
#0  0x00007fdc3a04ebac in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdc449f7525 in peak_thread_work ()
    at ../libs/ardour/source_factory.cc:68
---Type <return> to continue, or q <return> to quit---
#2  0x0000000001342e65 in sigc::pointer_functor0<void>::operator() (
    this=0x296c338) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#3  0x0000000001340686 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x296c330)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#4  0x000000000133d257 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x296c300)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#5  0x00007fdc41b21c3d in ?? () from /usr/lib/libglibmm-2.4.so.1
#6  0x00007fdc40ffe3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 3 (Thread 17849):
#0  0x00007fdc3a050f91 in sem_timedwait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdc3bf5f260 in ?? () from /usr/lib/libjack.so.0
#2  0x00007fdc3bf4dbfa in ?? () from /usr/lib/libjack.so.0
#3  0x00007fdc3bf4c387 in ?? () from /usr/lib/libjack.so.0
---Type <return> to continue, or q <return> to quit---
#4  0x00007fdc4467b686 in ARDOUR::AudioEngine::process_thread (this=0x2d479e0)
    at ../libs/ardour/audioengine.cc:437
#5  0x00007fdc4467b034 in ARDOUR::AudioEngine::_process_thread (arg=0x2d479e0)
    at ../libs/ardour/audioengine.cc:335
#6  0x00007fdc3bf4a557 in ?? () from /usr/lib/libjack.so.0
#7  0x00007fdc3bf5e840 in ?? () from /usr/lib/libjack.so.0
#8  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 17752):
#0  0x00007fdc3a04ef2b in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdc4148d392 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0
#2  0x00007fdc40fac2af in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdc40facca9 in g_async_queue_timed_pop ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdc41000a5a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdc40ffe3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#6  0x00007fdc3a049d8c in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007fdc39d94c2d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 17647):
#0  0x00007fdc39ce1d05 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdc39ce5ab6 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fdc39cda7c5 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007fdc448322a9 in boost::shared_ptr<ARDOUR::MidiDiskstream>::operator->
    (this=0x7fff93df2cf0) at /usr/include/boost/smart_ptr/shared_ptr.hpp:418
#4  0x00007fdc448316c2 in ARDOUR::MidiTrack::get_channel_mask (this=0x566e2c0)
    at ../libs/ardour/midi_track.cc:647
#5  0x00007fdc44831b41 in ARDOUR::MidiTrack::act_on_mute (this=0x566e2c0)
    at ../libs/ardour/midi_track.cc:728
#6  0x00007fdc448e7464 in ARDOUR::Route::set_mute (this=0x566e2c0, yn=true, 
    src=0x40787e0) at ../libs/ardour/route.cc:842

#7  0x00007fdc449a14d4 in ARDOUR::Session::rt_set_mute (this=0x40787e0, 
    rl=..., yn=true) at ../libs/ardour/session_rtevents.cc:154
#8  0x00007fdc449a436f in boost::_mfi::mf3<void, ARDOUR::Session, boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route>, std::allocator<boost::shared_ptr---Type <return> to continue, or q <return> to quit---
<ARDOUR::Route> > > >, bool, bool>::operator() (this=0x56914f0, p=0x40787e0, 
    a1=..., a2=true, a3=false)
    at /usr/include/boost/bind/mem_fn_template.hpp:393
#9  0x00007fdc449a40bd in boost::_bi::list4<boost::_bi::value<ARDOUR::Session*>, boost::_bi::value<boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route>, std::allocator<boost::shared_ptr<ARDOUR::Route> > > > >, boost::_bi::value<bool>, boost::_bi::value<bool> >::operator()<boost::_mfi::mf3<void, ARDOUR::Session, boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route> > >, bool, bool>, boost::_bi::list0> (this=0x5691500, f=..., a=...)
    at /usr/include/boost/bind/bind.hpp:457
#10 0x00007fdc449a3b0e in boost::_bi::bind_t<void, boost::_mfi::mf3<void, ARDOUR::Session, boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route>, std::allocator<boost::shared_ptr<ARDOUR::Route> > > >, bool, bool>, boost::_bi::list4<boost::_bi::value<ARDOUR::Session*>, boost::_bi::value<boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route>, std::allocator<boost::shared_ptr<ARDOUR::Route> > > > >, boost::_bi::value<bool>, boost::_bi::value<bool> > >::operator() (
    this=0x56914f0) at /usr/include/boost/bind/bind_template.hpp:20
#11 0x00007fdc449a36e7 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf3<void, ARDOUR::Session, boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route>, std::allocator<boost::shared_ptr<ARDOUR::Route> > > >, bool, bool>, boost::_bi::list4<boost::_bi::value<ARDOUR::Ses---Type <return> to continue, or q <return> to quit---
sion*>, boost::_bi::value<boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route>, std::allocator<boost::shared_ptr<ARDOUR::Route> > > > >, boost::_bi::value<bool>, boost::_bi::value<bool> > >, void>::invoke (function_obj_ptr=...)
    at /usr/include/boost/function/function_template.hpp:153
#12 0x0000000000e0b364 in boost::function0<void>::operator() (this=0x2b609b0)
    at /usr/include/boost/function/function_template.hpp:1013
#13 0x00007fdc449a1a41 in ARDOUR::Session::process_rtop (this=0x40787e0, 
    ev=0x2b60970) at ../libs/ardour/session_rtevents.cc:210
#14 0x00007fdc4499f255 in ARDOUR::Session::process_event (this=0x40787e0, 
    ev=0x2b60970) at ../libs/ardour/session_process.cc:1141
#15 0x00007fdc449853cb in ARDOUR::SessionEventManager::merge_event (
    this=0x4078998, ev=0x2b60970) at ../libs/ardour/session_events.cc:170
#16 0x00007fdc4499e980 in ARDOUR::Session::queue_event (this=0x40787e0, 
    ev=0x2b60970) at ../libs/ardour/session_process.cc:957
#17 0x00007fdc449a1406 in ARDOUR::Session::set_mute (this=0x40787e0, rl=..., 
    yn=true, after=..., group_override=false)
    at ../libs/ardour/session_rtevents.cc:146
#18 0x00007fdc448f4e7f in ARDOUR::Route::MuteControllable::set_value (
    this=0x5670f60, val=1) at ../libs/ardour/route.cc:3268
#19 0x00007fdc4302b956 in PBD::Controllable::set_state (this=0x5670f60, 
    node=...) at ../libs/pbd/controllable.cc:146
---Type <return> to continue, or q <return> to quit---
#20 0x00007fdc448ee187 in ARDOUR::Route::set_state (this=0x566e2c0, node=..., 
    version=3000) at ../libs/ardour/route.cc:2138
#21 0x00007fdc44a17c3b in ARDOUR::Track::set_state (this=0x566e2c0, node=..., 
    version=3000) at ../libs/ardour/track.cc:122
#22 0x00007fdc4482ef46 in ARDOUR::MidiTrack::set_state (this=0x566e2c0, 
    node=..., version=3000) at ../libs/ardour/midi_track.cc:150
#23 0x00007fdc449adb87 in ARDOUR::Session::XMLRouteFactory (this=0x40787e0, 
    node=..., version=3000) at ../libs/ardour/session_state.cc:1490
#24 0x00007fdc449ad5b6 in ARDOUR::Session::load_routes (this=0x40787e0, 
    node=..., version=3000) at ../libs/ardour/session_state.cc:1438
#25 0x00007fdc449acb2a in ARDOUR::Session::set_state (this=0x40787e0, 
    node=..., version=3000) at ../libs/ardour/session_state.cc:1360
#26 0x00007fdc449a57df in ARDOUR::Session::second_stage_init (this=0x40787e0)
    at ../libs/ardour/session_state.cc:313
#27 0x00007fdc44923b98 in ARDOUR::Session::Session (this=0x40787e0, eng=..., 
    fullpath=..., snapshot_name=..., bus_profile=0x0, mix_template=...)
    at ../libs/ardour/session.cc:189
#28 0x0000000000e2004a in ARDOUR_UI::load_session (this=0x271c210, path=..., 
    snap_name=..., mix_template=...) at ../gtk2_ardour/ardour_ui.cc:2627
#29 0x0000000000e1f9bc in ARDOUR_UI::get_session_parameters (this=0x271c210, 
    quit_on_cancel=true, should_be_new=false, load_template=...)
---Type <return> to continue, or q <return> to quit---
    at ../gtk2_ardour/ardour_ui.cc:2562
#30 0x0000000000e164e6 in ARDOUR_UI::startup (this=0x271c210)
    at ../gtk2_ardour/ardour_ui.cc:645
#31 0x0000000000e41f47 in sigc::bound_mem_functor0<void, ARDOUR_UI>::operator()
    (this=0x2b85468) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#32 0x0000000000e3d89e in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR_UI> >::operator() (this=0x2b85460)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#33 0x0000000000e3839d in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR_UI>, void>::call_it (rep=0x2b85430)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#34 0x0000000000e0a02d in sigc::internal::signal_emit0<void, sigc::nil>::emit (
    impl=0x2b853e0) at /usr/include/sigc++-2.0/sigc++/signal.h:776
#35 0x0000000000e0c4f8 in sigc::signal0<void, sigc::nil>::emit (this=0x271c2f8)
    at /usr/include/sigc++-2.0/sigc++/signal.h:2671
#36 0x0000000000e0b7be in sigc::signal0<void, sigc::nil>::operator() (
    this=0x271c2f8) at /usr/include/sigc++-2.0/sigc++/signal.h:2679
#37 0x00007fdc434005a8 in Gtkmm2ext::UI::run (this=0x271c210, old_receiver=...)
    at ../libs/gtkmm2ext/gtk_ui.cc:266
#38 0x00000000011b421e in main (argc=1, argv=0x7fff93df4c18)
    at ../gtk2_ardour/main.cc:455