(gdb) thread apply all bt

Thread 22 (Thread 0x7fffd1031700 (LWP 12899)):
#0  0x00007ffff0aa9aad in nanosleep () from /usr/lib/libc.so.6
#1  0x00007ffff0ad1c14 in usleep () from /usr/lib/libc.so.6
#2  0x00007ffff72de18f in ARDOUR::AutomationWatch::thread() ()
   from /usr/lib/ardour3/libardour.so.3
#3  0x00007ffff72e195f in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator()(ARDOUR::AutomationWatch*) const () from /usr/lib/ardour3/libardour.so.3
#4  0x00007ffff72e15c2 in void boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>&, boost::_bi::list0&, int) () from /usr/lib/ardour3/libardour.so.3
#5  0x00007ffff72e113f in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator()() () from /usr/lib/ardour3/libardour.so.3
#6  0x00007ffff72e10ca in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > > >::operator()() const ()
   from /usr/lib/ardour3/libardour.so.3
#7  0x00007ffff72e0bfe in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >, void>::call_it(sigc::internal::slot_rep*) ()
   from /usr/lib/ardour3/libardour.so.3
#8  0x00007ffff570aa5d in ?? () from /usr/lib/libglibmm-2.4.so.1
#9  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7fffc3fff700 (LWP 12897)):
#0  0x00007ffff0acf87d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff51bd584 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff51bd9ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff5e1044f in BaseUI::main_thread() ()
   from /usr/lib/ardour3/libpbd.so.4
#4  0x00007ffff5e13cb4 in sigc::bound_mem_functor0<void, BaseUI>::operator()() const () from /usr/lib/ardour3/libpbd.so.4
#5  0x00007ffff5e139f4 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator()() const () from /usr/lib/ardour3/libpbd.so.4
#6  0x00007ffff5e133b1 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it(sigc::internal::slot_rep*) ()
   from /usr/lib/ardour3/libpbd.so.4
#7  0x00007ffff570aa5d in ?? () from /usr/lib/libglibmm-2.4.so.1
#8  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#9  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7fffa407d800 (LWP 12896)):
#0  0x00007ffff0acf87d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff72f1726 in ARDOUR::Butler::thread_work() ()
   from /usr/lib/ardour3/libardour.so.3
#2  0x00007ffff72f167f in ARDOUR::Butler::_thread_work(void*) ()
   from /usr/lib/ardour3/libardour.so.3
#3  0x00007ffff5e385c8 in ?? () from /usr/lib/ardour3/libpbd.so.4
#4  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7fff94087700 (LWP 12895)):
#0  0x00007ffff0a28369 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff0a29768 in abort () from /usr/lib/libc.so.6
#2  0x00007ffff0a21456 in __assert_fail_base () from /usr/lib/libc.so.6
#3  0x00007ffff0a21502 in __assert_fail () from /usr/lib/libc.so.6
#4  0x00007ffff7419bf7 in ARDOUR::MidiBuffer::copy(ARDOUR::MidiBuffer const&)
    () from /usr/lib/ardour3/libardour.so.3
#5  0x00007ffff755578e in ARDOUR::Route::fill_buffers_with_input(ARDOUR::BufferSet&, boost::shared_ptr<ARDOUR::IO>, unsigned int) ()
   from /usr/lib/ardour3/libardour.so.3
#6  0x00007ffff7689c1d in ARDOUR::Track::no_roll(unsigned int, long, long, bool) () from /usr/lib/ardour3/libardour.so.3
#7  0x00007ffff74701d3 in ARDOUR::MidiTrack::no_roll(unsigned int, long, long, bool) () from /usr/lib/ardour3/libardour.so.3
#8  0x00007ffff73bbeef in ARDOUR::Graph::process_one_route(ARDOUR::Route*) ()
   from /usr/lib/ardour3/libardour.so.3
#9  0x00007ffff73bfc68 in ARDOUR::GraphNode::process() ()
   from /usr/lib/ardour3/libardour.so.3
#10 0x00007ffff73ba898 in ARDOUR::Graph::run_one() ()
   from /usr/lib/ardour3/libardour.so.3
#11 0x00007ffff73baa8a in ARDOUR::Graph::helper_thread() ()
   from /usr/lib/ardour3/libardour.so.3
#12 0x00007ffff73bf5b5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const () from /usr/lib/ardour3/libardour.so.3
#13 0x00007ffff73bf1ec in void boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) () from /usr/lib/ardour3/libardour.so.3
#14 0x00007ffff73beefb in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()()
    () from /usr/lib/ardour3/libardour.so.3
#15 0x00007ffff73bea39 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) () from /usr/lib/ardour3/libardour.so.3
#16 0x0000000000eae7e4 in boost::function0<void>::operator()() const ()
#17 0x00007fffe0ae9259 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /usr/lib/ardour3/backends/libjack_audiobackend.so
#18 0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#19 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7fff94108700 (LWP 12894)):
#0  0x00007ffff1d1cff0 in sem_wait () from /usr/lib/libpthread.so.0
#1  0x00007ffff73bc11a in PBD::ProcessSemaphore::wait() ()
   from /usr/lib/ardour3/libardour.so.3
#2  0x00007ffff73ba753 in ARDOUR::Graph::run_one() ()
   from /usr/lib/ardour3/libardour.so.3
#3  0x00007ffff73baa8a in ARDOUR::Graph::helper_thread() ()
   from /usr/lib/ardour3/libardour.so.3
#4  0x00007ffff73bf5b5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const () from /usr/lib/ardour3/libardour.so.3
#5  0x00007ffff73bf1ec in void boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) () from /usr/lib/ardour3/libardour.so.3
#6  0x00007ffff73beefb in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()()
    () from /usr/lib/ardour3/libardour.so.3
#7  0x00007ffff73bea39 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) () from /usr/lib/ardour3/libardour.so.3
#8  0x0000000000eae7e4 in boost::function0<void>::operator()() const ()
#9  0x00007fffe0ae9259 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /usr/lib/ardour3/backends/libjack_audiobackend.so
#10 0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7fff94189700 (LWP 12893)):
#0  0x00007ffff1d1cff0 in sem_wait () from /usr/lib/libpthread.so.0
#1  0x00007ffff73bc11a in PBD::ProcessSemaphore::wait() ()
   from /usr/lib/ardour3/libardour.so.3
#2  0x00007ffff73ba753 in ARDOUR::Graph::run_one() ()
   from /usr/lib/ardour3/libardour.so.3
#3  0x00007ffff73bacb4 in ARDOUR::Graph::main_thread() ()
   from /usr/lib/ardour3/libardour.so.3
#4  0x00007ffff73bf5b5 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator()(ARDOUR::Graph*) const () from /usr/lib/ardour3/libardour.so.3
#5  0x00007ffff73bf1ec in void boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::Graph>&, boost::_bi::list0&, int) () from /usr/lib/ardour3/libardour.so.3
#6  0x00007ffff73beefb in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator()()
    () from /usr/lib/ardour3/libardour.so.3
#7  0x00007ffff73bea39 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >, void>::invoke(boost::detail::function::function_buffer&) () from /usr/lib/ardour3/libardour.so.3
#8  0x0000000000eae7e4 in boost::function0<void>::operator()() const ()
#9  0x00007fffe0ae9259 in ARDOUR::JACKAudioBackend::_start_process_thread(void*) () from /usr/lib/ardour3/backends/libjack_audiobackend.so
#10 0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fffc1ad8700 (LWP 12890)):
#0  0x00007ffff1d1e12d in nanosleep () from /usr/lib/libpthread.so.0
#1  0x00007ffff51e3558 in g_usleep () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7292882 in ARDOUR::AudioEngine::meter_thread() ()
   from /usr/lib/ardour3/libardour.so.3
#3  0x00007ffff729dac7 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator()(ARDOUR::AudioEngine*) const () from /usr/lib/ardour3/libardour.so.3
#4  0x00007ffff729d6d0 in void boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, ARDOUR::AudioEngine>&, boost::_bi::list0&, int) () from /usr/lib/ardour3/libardour.so.3
#5  0x00007ffff729cfff in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator()() () from /usr/lib/ardour3/libardour.so.3
#6  0x00007ffff729c7ae in sigc::adaptor_functor<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > > >::operator()() const ()
   from /usr/lib/ardour3/libardour.so.3
#7  0x00007ffff729b8b6 in sigc::internal::slot_call0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >, void>::call_it(sigc::internal::slot_rep*) ()
   from /usr/lib/ardour3/libardour.so.3
#8  0x00007ffff570aa5d in ?? () from /usr/lib/libglibmm-2.4.so.1
#9  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7fffd0141700 (LWP 12889)):
#0  0x00007ffff1d1cff0 in sem_wait () from /usr/lib/libpthread.so.0
#1  0x00007ffff73bc11a in PBD::ProcessSemaphore::wait() ()
   from /usr/lib/ardour3/libardour.so.3
#2  0x00007ffff73bbcba in ARDOUR::Graph::routes_no_roll(unsigned int, long, long, bool, int) () from /usr/lib/ardour3/libardour.so.3
#3  0x00007ffff7604507 in ARDOUR::Session::no_roll(unsigned int) ()
   from /usr/lib/ardour3/libardour.so.3
#4  0x00007ffff7604306 in ARDOUR::Session::fail_roll(unsigned int) ()
   from /usr/lib/ardour3/libardour.so.3
#5  0x00007ffff76077d9 in ARDOUR::Session::process_without_events(unsigned int)
    () from /usr/lib/ardour3/libardour.so.3
#6  0x00007ffff7605334 in ARDOUR::Session::process_with_events(unsigned int) ()
   from /usr/lib/ardour3/libardour.so.3
#7  0x00007ffff76041ce in ARDOUR::Session::process(unsigned int) ()
   from /usr/lib/ardour3/libardour.so.3
#8  0x00007ffff729255f in ARDOUR::AudioEngine::process_callback(unsigned int)
    () from /usr/lib/ardour3/libardour.so.3
#9  0x00007fffe0ae9312 in ARDOUR::JACKAudioBackend::process_thread() ()
   from /usr/lib/ardour3/backends/libjack_audiobackend.so
#10 0x00007fffe0ae92aa in ARDOUR::JACKAudioBackend::_process_thread(void*) ()
   from /usr/lib/ardour3/backends/libjack_audiobackend.so
#11 0x00007fffe0882f77 in ?? () from /usr/lib/libjack.so.0
#12 0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#13 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fffc23d9700 (LWP 12887)):
#0  0x00007ffff1d1b03f in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /usr/lib/libpthread.so.0
#1  0x00007fffe0884473 in ?? () from /usr/lib/libjack.so.0
#2  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7fffc35f8700 (LWP 12885)):
#0  0x00007ffff1d1b3e8 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /usr/lib/libpthread.so.0
#1  0x00007ffff51fd5d5 in g_cond_wait_until () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff5193d51 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff51942db in g_async_queue_timeout_pop ()
   from /usr/lib/libglib-2.0.so.0
#4  0x00007ffff51e2a46 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#6  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fffd1832700 (LWP 12879)):
#0  0x00007ffff0acf87d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff51bd584 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff51bd68c in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff51bd6d9 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fffd2033700 (LWP 12878)):
#0  0x00007ffff0acf87d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff51bd584 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff51bd9ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00007fffed297176 in ?? () from /usr/lib/libgio-2.0.so.0
#4  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffe1dd6700 (LWP 12877)):
#0  0x00007ffff1d1b03f in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /usr/lib/libpthread.so.0
#1  0x00007ffff51fd4e7 in g_cond_wait () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7247976 in ARDOUR::Analyser::work() ()
   from /usr/lib/ardour3/libardour.so.3
#3  0x00007ffff724775f in ?? () from /usr/lib/ardour3/libardour.so.3
#4  0x0000000001485927 in sigc::pointer_functor0<void>::operator()() const ()
#5  0x0000000001482d10 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const ()
#6  0x000000000147f7b7 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) ()
#7  0x00007ffff570aa5d in ?? () from /usr/lib/libglibmm-2.4.so.1
#8  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#9  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffe25d7700 (LWP 12876)):
#0  0x00007ffff1d1b03f in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /usr/lib/libpthread.so.0
#1  0x00007ffff51fd4e7 in g_cond_wait () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff766384c in ?? () from /usr/lib/ardour3/libardour.so.3
#3  0x0000000001485927 in sigc::pointer_functor0<void>::operator()() const ()
#4  0x0000000001482d10 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const ()
#5  0x000000000147f7b7 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) ()
#6  0x00007ffff570aa5d in ?? () from /usr/lib/libglibmm-2.4.so.1
#7  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#8  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffe2dd8700 (LWP 12875)):
#0  0x00007ffff1d1b03f in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /usr/lib/libpthread.so.0
#1  0x00007ffff51fd4e7 in g_cond_wait () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff766384c in ?? () from /usr/lib/ardour3/libardour.so.3
#3  0x0000000001485927 in sigc::pointer_functor0<void>::operator()() const ()
#4  0x0000000001482d10 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator()() const ()
#5  0x000000000147f7b7 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it(sigc::internal::slot_rep*) ()
#6  0x00007ffff570aa5d in ?? () from /usr/lib/libglibmm-2.4.so.1
#7  0x00007ffff51e1fb5 in ?? () from /usr/lib/libglib-2.0.so.0
#8  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffe35d9700 (LWP 12874)):
#0  0x00007ffff0aa9aad in nanosleep () from /usr/lib/libc.so.6
#1  0x00007ffff0ad1c14 in usleep () from /usr/lib/libc.so.6
#2  0x0000000001748a12 in gui_event_loop(void*) ()
#3  0x00007ffff1d170a2 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007ffff0ad832d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff7f77940 (LWP 12869)):
#0  0x00007ffff0acf87d in poll () from /usr/lib/libc.so.6
#1  0x00007ffff51bd584 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff51bd9ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4a669d7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x00007ffff6201dea in Gtkmm2ext::UI::run(Receiver&) ()
   from /usr/lib/ardour3/libgtkmm2ext.so.0
#5  0x0000000001297dd5 in main ()