0x00007fffed18d7eb in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&) () from /usr/lib64/libstdc++.so.6
(gdb) thread apply all bt

Thread 50 (Thread 0x7fffa353c700 (LWP 17493)):
#0  0x00007fffef3c9458 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ffff3a285f5 in g_cond_wait_until () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff39bea71 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ffff39beffb in g_async_queue_timeout_pop () from /usr/lib64/libglib-2.0.so.0
#4  0x00007ffff3a0dac6 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#6  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#7  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7fffde54c700 (LWP 17470)):
#0  0x00007fffecbc120d in nanosleep () from /lib64/libc.so.6
#1  0x00007fffecbe9ce4 in usleep () from /lib64/libc.so.6
#2  0x00007ffff72d8507 in ARDOUR::AutomationWatch::thread (this=0xec39130) at ../libs/ardour/automation_watch.cc:137
#3  0x00007ffff72dbcd7 in boost::_mfi::mf0<void, ARDOUR::AutomationWatch>::operator() (this=0xe8b4f90, p=0xec39130) at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff72db93a in boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list0> (this=0xe8b4fa0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#5  0x00007ffff72db4b7 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AutomationWatch>, boost::_bi::list1<boost::_bi::value<ARDOUR::AutomationWatch*> > >::operator() (this=0xe8b4f90) at /usr/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff72db442 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=0xe8b4f90)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#7  0x00007ffff72daf76 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=0xe8b4f60)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff3f3a4fd in ?? () from /usr/lib64/libglibmm-2.4.so.1
#9  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#10 0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#11 0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7fffc54c1700 (LWP 17469)):
#0  0x00007fffecbe77bd in poll () from /lib64/libc.so.6
#1  0x00007ffff39e8604 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff39e8a6a in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ffff5b2db95 in BaseUI::main_thread (this=0x35c9390) at ../libs/pbd/base_ui.cc:80
#4  0x00007ffff5b313fa in sigc::bound_mem_functor0<void, BaseUI>::operator() (this=0x35c1978) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#5  0x00007ffff5b3113a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, BaseUI> >::operator() (this=0x35c1970) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x00007ffff5b30af7 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, BaseUI>, void>::call_it (rep=0x35c1940) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff3f3a4fd in ?? () from /usr/lib64/libglibmm-2.4.so.1
#8  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#9  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7fffa48bd800 (LWP 17468)):
#0  0x00007fffecbe77bd in poll () from /lib64/libc.so.6
#1  0x00007ffff72ebaa4 in ARDOUR::Butler::thread_work (this=0x24e7800) at ../libs/ardour/butler.cc:150
#2  0x00007ffff72eb9fd in ARDOUR::Butler::_thread_work (arg=0x24e7800) at ../libs/ardour/butler.cc:134
#3  0x00007ffff5b55efe in fake_thread_start (arg=0x35b90c0) at ../libs/pbd/pthread_utils.cc:85
#4  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#5  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7fffa515f700 (LWP 17467)):
#0  0x00007fffef3cb0f0 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007ffff73b6196 in PBD::ProcessSemaphore::wait (this=0x31d1070) at /home/awesome/Downloads/Ardour/Ardour3-3.5.403/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff73b3d14 in ARDOUR::Graph::restart_cycle (this=0x31d0fa0) at ../libs/ardour/graph.cc:245
#3  0x00007ffff73b3ce1 in ARDOUR::Graph::dec_ref (this=0x31d0fa0) at ../libs/ardour/graph.cc:232
#4  0x00007ffff73b9c80 in ARDOUR::GraphNode::finish (this=0x3630678, chain=1) at ../libs/ardour/graphnode.cc:71
#5  0x00007ffff73b492f in ARDOUR::Graph::run_one (this=0x31d0fa0) at ../libs/ardour/graph.cc:385
#6  0x00007ffff73b4b06 in ARDOUR::Graph::helper_thread (this=0x31d0fa0) at ../libs/ardour/graph.cc:402
#7  0x00007ffff73b9631 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa515ebd8, p=0x31d0fa0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#8  0x00007ffff73b9268 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa515ebe8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#9  0x00007ffff73b8f77 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa515ebd8) at /usr/include/boost/bind/bind_template.hpp:20
#10 0x00007ffff73b8ab5 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 /usr/include/boost/function/function_template.hpp:153
#11 0x0000000000f269ea in boost::function0<void>::operator() (this=0x7fffa515ebd0) at /usr/include/boost/function/function_template.hpp:767
#12 0x00007fffe1c16edd in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x31ce770) at ../libs/backends/jack/jack_audiobackend.cc:913
#13 0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#14 0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7fffa51e0700 (LWP 17466)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007fffef3cb0f0 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007ffff73b6196 in PBD::ProcessSemaphore::wait (this=0x31d1050) at /home/awesome/Downloads/Ardour/Ardour3-3.5.403/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff73b47cf in ARDOUR::Graph::run_one (this=0x31d0fa0) at ../libs/ardour/graph.cc:371
#3  0x00007ffff73b4b06 in ARDOUR::Graph::helper_thread (this=0x31d0fa0) at ../libs/ardour/graph.cc:402
#4  0x00007ffff73b9631 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa51dfbd8, p=0x31d0fa0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff73b9268 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa51dfbe8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#6  0x00007ffff73b8f77 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa51dfbd8) at /usr/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff73b8ab5 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 /usr/include/boost/function/function_template.hpp:153
#8  0x0000000000f269ea in boost::function0<void>::operator() (this=0x7fffa51dfbd0) at /usr/include/boost/function/function_template.hpp:767
#9  0x00007fffe1c16edd in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x31d0c70) at ../libs/backends/jack/jack_audiobackend.cc:913
#10 0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#11 0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7fffa5261700 (LWP 17465)):
#0  0x00007fffef3cb0f0 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007ffff73b6196 in PBD::ProcessSemaphore::wait (this=0x31d1050) at /home/awesome/Downloads/Ardour/Ardour3-3.5.403/libs/pbd/pbd/semutils.h:41
#2  0x00007ffff73b47cf in ARDOUR::Graph::run_one (this=0x31d0fa0) at ../libs/ardour/graph.cc:371
#3  0x00007ffff73b4d30 in ARDOUR::Graph::main_thread (this=0x31d0fa0) at ../libs/ardour/graph.cc:440
#4  0x00007ffff73b9631 in boost::_mfi::mf0<void, ARDOUR::Graph>::operator() (this=0x7fffa5260bd8, p=0x31d0fa0) at /usr/include/boost/bind/mem_fn_template.hpp:49
#5  0x00007ffff73b9268 in boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> >::operator()<boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list0> (this=0x7fffa5260be8, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#6  0x00007ffff73b8f77 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::Graph>, boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*> > >::operator() (this=0x7fffa5260bd8) at /usr/include/boost/bind/bind_template.hpp:20
#7  0x00007ffff73b8ab5 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 /usr/include/boost/function/function_template.hpp:153
#8  0x0000000000f269ea in boost::function0<void>::operator() (this=0x7fffa5260bd0) at /usr/include/boost/function/function_template.hpp:767
#9  0x00007fffe1c16edd in ARDOUR::JACKAudioBackend::_start_process_thread (arg=0x2ad7d80) at ../libs/backends/jack/jack_audiobackend.cc:913
#10 0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#11 0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7fffded4d700 (LWP 17464)):
#0  0x00007fffef3cc25d in nanosleep () from /lib64/libpthread.so.0
#1  0x00007ffff3a0e5d8 in g_usleep () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff728ca9c in ARDOUR::AudioEngine::meter_thread (this=0x2131940) at ../libs/ardour/audioengine.cc:382
#3  0x00007ffff7297ce1 in boost::_mfi::mf0<void, ARDOUR::AudioEngine>::operator() (this=0x2ad7d10, p=0x2131940) at /usr/include/boost/bind/mem_fn_template.hpp:49
#4  0x00007ffff72978ea in boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> >::operator()<boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list0> (this=0x2ad7d20, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253
#5  0x00007ffff7297219 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, ARDOUR::AudioEngine>, boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*> > >::operator() (this=0x2ad7d10) at /usr/include/boost/bind/bind_template.hpp:20
#6  0x00007ffff72969c8 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=0x2ad7d10)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#7  0x00007ffff7295ad0 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=0x2ad7ce0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#8  0x00007ffff3f3a4fd in ?? () from /usr/lib64/libglibmm-2.4.so.1
#9  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#10 0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#11 0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7fffb9cef700 (LWP 17463)):
#0  0x00007fffef3cb1d0 in sem_timedwait () from /lib64/libpthread.so.0
#1  0x00007fffe196962c in ?? () from /usr/lib64/libjack.so.0
#2  0x00007fffe19530b9 in ?? () from /usr/lib64/libjack.so.0
#3  0x00007fffe1951717 in ?? () from /usr/lib64/libjack.so.0
#4  0x00007fffe1c16f7e in ARDOUR::JACKAudioBackend::process_thread (this=0x252fff0) at ../libs/backends/jack/jack_audiobackend.cc:935
#5  0x00007fffe1c16f2e in ARDOUR::JACKAudioBackend::_process_thread (arg=0x252fff0) at ../libs/backends/jack/jack_audiobackend.cc:921
#6  0x00007fffe195168a in ?? () from /usr/lib64/libjack.so.0
#7  0x00007fffe1968c20 in ?? () from /usr/lib64/libjack.so.0
#8  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#9  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7fffdd222700 (LWP 17462)):
#0  0x00007fffef3cbb7d in read () from /lib64/libpthread.so.0
#1  0x00007fffe196a3c4 in ?? () from /usr/lib64/libjack.so.0
#2  0x00007fffe196cc3c in ?? () from /usr/lib64/libjack.so.0
#3  0x00007fffe1968c20 in ?? () from /usr/lib64/libjack.so.0
#4  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#5  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7fffdd2a3700 (LWP 17461)):
#0  0x00007fffef3c90af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fffe1969aec in ?? () from /usr/lib64/libjack.so.0
---Type <return> to continue, or q <return> to quit---
#2  0x00007fffe19659f8 in ?? () from /usr/lib64/libjack.so.0
#3  0x00007fffe1968c20 in ?? () from /usr/lib64/libjack.so.0
#4  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#5  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7fffbfbf7700 (LWP 17456)):
#0  0x00007fffecbe77bd in poll () from /lib64/libc.so.6
#1  0x00007fffc44f68c1 in ?? () from /usr/lib64/libpulse.so.0
#2  0x00007fffc44e80ec in pa_mainloop_poll () from /usr/lib64/libpulse.so.0
#3  0x00007fffc44e875e in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#4  0x00007fffc44e8810 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#5  0x00007fffc44f6873 in ?? () from /usr/lib64/libpulse.so.0
#6  0x00007fffc4096ef8 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-4.0.so
#7  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#8  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fffdfc6a700 (LWP 17445)):
#0  0x00007fffecbe77bd in poll () from /lib64/libc.so.6
#1  0x00007ffff39e8604 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff39e870c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ffff39e8759 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fffe046b700 (LWP 17444)):
#0  0x00007fffecbe77bd in poll () from /lib64/libc.so.6
#1  0x00007ffff39e8604 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff39e8a6a in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ffff2099c16 in ?? () from /usr/lib64/libgio-2.0.so.0
#4  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#6  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fffe2f0d700 (LWP 17441)):
#0  0x00007fffef3c90af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ffff3a28507 in g_cond_wait () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff7241b98 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:81
#3  0x00007ffff7241981 in analyser_work () at ../libs/ardour/analyser.cc:46
#4  0x00000000014fedab in sigc::pointer_functor0<void>::operator() (this=0x20ce668) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#5  0x00000000014fc194 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x20ce660) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#6  0x00000000014f8c3b in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x20ce630) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#7  0x00007ffff3f3a4fd in ?? () from /usr/lib64/libglibmm-2.4.so.1
#8  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#9  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fffe370e700 (LWP 17440)):
#0  0x00007fffef3c90af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ffff3a28507 in g_cond_wait () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff765eda8 in peak_thread_work () at ../libs/ardour/source_factory.cc:68
#3  0x00000000014fedab in sigc::pointer_functor0<void>::operator() (this=0x20a2e68) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00000000014fc194 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x20a2e60) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x00000000014f8c3b in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x20a2e30) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff3f3a4fd in ?? () from /usr/lib64/libglibmm-2.4.so.1
#7  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#8  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#9  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fffe3f0f700 (LWP 17439)):
#0  0x00007fffef3c90af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ffff3a28507 in g_cond_wait () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff765eda8 in peak_thread_work () at ../libs/ardour/source_factory.cc:68
#3  0x00000000014fedab in sigc::pointer_functor0<void>::operator() (this=0x20d1168) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#4  0x00000000014fc194 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x20d1160) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#5  0x00000000014f8c3b in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x20d1130) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#6  0x00007ffff3f3a4fd in ?? () from /usr/lib64/libglibmm-2.4.so.1
---Type <return> to continue, or q <return> to quit---
#7  0x00007ffff3a0d035 in ?? () from /usr/lib64/libglib-2.0.so.0
#8  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#9  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fffe4710700 (LWP 17438)):
#0  0x00007fffecbc120d in nanosleep () from /lib64/libc.so.6
#1  0x00007fffecbe9ce4 in usleep () from /lib64/libc.so.6
#2  0x00000000017bd7a5 in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:380
#3  0x00007fffef3c50db in start_thread () from /lib64/libpthread.so.0
#4  0x00007fffecbf058d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ffff7f85a40 (LWP 17434)):
#0  0x00007fffed18d7eb in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&) () from /usr/lib64/libstdc++.so.6
#1  0x00000000010f8c9c in Editor::add_sources (this=0x2b9aed0, paths=std::vector of length 1, capacity 1 = {...}, sources=std::vector of length 13, capacity 16 = {...}, pos=@0x2b9c470: -1, disposition=Editing::ImportDistinctFiles, mode=Editing::ImportAsTrack, 
    target_regions=-1, target_tracks=-1, track=...) at ../gtk2_ardour/editor_audio_import.cc:752
#2  0x00000000010f711c in Editor::import_sndfiles (this=0x2b9aed0, paths=std::vector of length 1, capacity 1 = {...}, disposition=Editing::ImportDistinctFiles, mode=Editing::ImportAsTrack, quality=ARDOUR::SrcBest, pos=@0x7fffffffc108: -1, target_regions=1, 
    target_tracks=-1, track=..., replace=false) at ../gtk2_ardour/editor_audio_import.cc:508
#3  0x00000000010f63c6 in Editor::do_import (this=0x2b9aed0, paths=std::vector of length 1, capacity 1 = {...}, disposition=Editing::ImportDistinctFiles, mode=Editing::ImportAsTrack, quality=ARDOUR::SrcBest, pos=@0x7fffffffc108: -1)
    at ../gtk2_ardour/editor_audio_import.cc:346
#4  0x0000000001673473 in SoundFileOmega::do_something (this=0xeeff8d0, action=-5) at ../gtk2_ardour/sfdb_ui.cc:1942
#5  0x000000000167b08c in sigc::bound_mem_functor1<void, SoundFileBrowser, int>::operator() (this=0xef35750, _A_a1=@0x7fffffffc1dc: -5) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1851
#6  0x000000000167a6e0 in sigc::adaptor_functor<sigc::bound_mem_functor1<void, SoundFileBrowser, int> >::operator()<Gtk::ResponseType&> (this=0xef35748, _A_arg1=@0xef35770: Gtk::RESPONSE_OK) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84
#7  0x0000000001679993 in sigc::bind_functor<-1, sigc::bound_mem_functor1<void, SoundFileBrowser, int>, Gtk::ResponseType, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator() (this=0xef35740)
    at /usr/include/sigc++-2.0/sigc++/adaptors/bind.h:1110
#8  0x000000000167850b in sigc::internal::slot_call0<sigc::bind_functor<-1, sigc::bound_mem_functor1<void, SoundFileBrowser, int>, Gtk::ResponseType, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void>::call_it (rep=0xef35710)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x00007ffff3f47218 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /usr/lib64/libglibmm-2.4.so.1
#10 0x00007ffff3cb1318 in g_closure_invoke () from /usr/lib64/libgobject-2.0.so.0
#11 0x00007ffff3cc2f41 in ?? () from /usr/lib64/libgobject-2.0.so.0
#12 0x00007ffff3cca9b9 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#13 0x00007ffff3ccac72 in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#14 0x00007ffff2fec4f5 in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#15 0x00007ffff3cb1318 in g_closure_invoke () from /usr/lib64/libgobject-2.0.so.0
#16 0x00007ffff3cc24c7 in ?? () from /usr/lib64/libgobject-2.0.so.0
#17 0x00007ffff3cca9b9 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#18 0x00007ffff3ccac72 in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#19 0x00007ffff2feb439 in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#20 0x00007ffff308d9f5 in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#21 0x00007ffff3cb1318 in g_closure_invoke () from /usr/lib64/libgobject-2.0.so.0
#22 0x00007ffff3cc2a6b in ?? () from /usr/lib64/libgobject-2.0.so.0
#23 0x00007ffff3cca689 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#24 0x00007ffff3ccac72 in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#25 0x00007ffff319d884 in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#26 0x00007ffff308c1a4 in gtk_propagate_event () from /usr/lib64/libgtk-x11-2.0.so.0
#27 0x00007ffff308c55b in gtk_main_do_event () from /usr/lib64/libgtk-x11-2.0.so.0
#28 0x00007ffff2cfcb3c in ?? () from /usr/lib64/libgdk-x11-2.0.so.0
#29 0x00007ffff39e8316 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#30 0x00007ffff39e8668 in ?? () from /usr/lib64/libglib-2.0.so.0
#31 0x00007ffff39e8a6a in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#32 0x00007ffff308b647 in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
#33 0x00007ffff5f2c230 in Gtkmm2ext::UI::run (this=0x20a8680, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:273
#34 0x0000000001310b92 in main (argc=1, argv=0x7fffffffd338) at ../gtk2_ardour/main.cc:519