Thread 5 (process 5303): #0 0x00002b75b5c15881 in ?? () from /lib/libpthread.so.0 #1 0x00002b75b0576d38 in g_usleep () from /usr/lib/libglib-2.0.so.0 #2 0x00002b75b3e817bd in Glib::usleep (microseconds=10000) at libs/glibmm2/glibmm/timer.cc:68 #3 0x00002b75ae6556a6 in ARDOUR::AudioEngine::meter_thread (this=0x13d6f20) at libs/ardour/audioengine.cc:412 #4 0x00002b75ae65857b in sigc::bound_mem_functor0::operator() (this=0x13d81b8) at libs/sigc++2/sigc++/functors/mem_fun.h:1781 #5 0x00002b75ae658597 in sigc::adaptor_functor >::operator() (this=0x13d81b0) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251 #6 0x00002b75ae6585bb in sigc::internal::slot_call0, void>::call_it (rep=0x13d8180) at libs/sigc++2/sigc++/functors/slot.h:103 #7 0x000000000078686b in sigc::slot0::operator() (this=0x1316c40) at libs/sigc++2/sigc++/functors/slot.h:440 #8 0x00002b75b3e79610 in call_thread_entry_slot (data=0x1316c40) at libs/glibmm2/glibmm/thread.cc:43 #9 0x00002b75b0574b74 in ?? () from /usr/lib/libglib-2.0.so.0 #10 0x00002b75b5c0e2a5 in start_thread () from /lib/libpthread.so.0 #11 0x00002b75b5ef261d in clone () from /lib/libc.so.6 #12 0x0000000000000000 in ?? () Thread 4 (process 5307): #0 0x00002b75ae757989 in std::_List_iterator >::operator!= (this=0x41177090, __x=@0x41177180) at /usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../include/c++/4.1.2/bits/stl_list.h:174 #1 0x00002b75ae771164 in ARDOUR::Session::butler_thread_work (this=0x1998000) at libs/ardour/session_butler.cc:324 #2 0x00002b75ae771403 in ARDOUR::Session::_butler_thread_work (arg=0x1998000) at libs/ardour/session_butler.cc:157 #3 0x00002b75b5c0e2a5 in start_thread () from /lib/libpthread.so.0 #4 0x00002b75b5ef261d in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 3 (process 5308): #0 0x00002b75b5ee98c6 in poll () from /lib/libc.so.6 #1 0x00002b75ae78c9ad in ARDOUR::Session::midi_thread_work (this=0x1998000) at libs/ardour/session_midi.cc:1207 #2 0x00002b75ae78ced7 in ARDOUR::Session::_midi_thread_work (arg=0x1998000) at libs/ardour/session_midi.cc:1128 #3 0x00002b75b5c0e2a5 in start_thread () from /lib/libpthread.so.0 #4 0x00002b75b5ef261d in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 2 (process 5309): #0 0x00002b75b5c12796 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00002b75b3e78d02 in Glib::Cond::wait (this=0x1998528, mutex=@0x1998520) at libs/glibmm2/glibmm/thread.cc:362 #2 0x00002b75ae77153c in ARDOUR::Session::stop_butler (this=0x1998000) at libs/ardour/session_butler.cc:141 #3 0x00002b75ae7b7be5 in ARDOUR::Session::engine_halted (this=0x1998000) at libs/ardour/session_transport.cc:1169 #4 0x00002b75ae75f44f in sigc::bound_mem_functor0::operator() (this=0x1a221c8) at libs/sigc++2/sigc++/functors/mem_fun.h:1781 #5 0x00002b75ae75f46b in sigc::adaptor_functor >::operator() (this=0x1a221c0) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251 #6 0x00002b75ae75f48f in sigc::internal::slot_call0, void>::call_it (rep=0x1a22190) at libs/sigc++2/sigc++/functors/slot.h:103 #7 0x00000000007ac03f in sigc::internal::signal_emit0::emit (impl=0x1316b10) at libs/sigc++2/sigc++/signal.h:517 #8 0x00000000007ac0c5 in sigc::signal0::emit ( this=0x13d6f70) at libs/sigc++2/sigc++/signal.h:1584 #9 0x00000000007ac0dd in sigc::signal0::operator() ( this=0x13d6f70) at libs/sigc++2/sigc++/signal.h:1588 #10 0x00002b75ae652e1f in ARDOUR::AudioEngine::halted (arg=0x13d6f20) at libs/ardour/audioengine.cc:767 #11 0x00002b75b54e213c in ?? () from /usr/lib/libjack-0.100.0.so.0 #12 0x00002b75b54e539e in ?? () from /usr/lib/libjack-0.100.0.so.0 #13 0x00002b75b5c0e2a5 in start_thread () from /lib/libpthread.so.0 #14 0x00002b75b5ef261d in clone () from /lib/libc.so.6 #15 0x0000000000000000 in ?? () Thread 1 (process 5301): #0 0x00002b75b54df800 in jack_client_deliver_request () from /usr/lib/libjack-0.100.0.so.0 #1 0x00002b75b54dfee8 in jack_connect () from /usr/lib/libjack-0.100.0.so.0 #2 0x00002b75ae6539c7 in ARDOUR::AudioEngine::reconnect_to_jack ( this=0x13d6f20) at libs/ardour/audioengine.cc:1172 #3 0x0000000000797dbe in ARDOUR_UI::reconnect_to_jack (this=0xf003c0) at gtk2_ardour/ardour_ui.cc:2522 #4 0x00000000007aa19f in sigc::bound_mem_functor0::operator() (this=0x17352f8) at libs/sigc++2/sigc++/functors/mem_fun.h:1781 #5 0x00000000007aa1bb in sigc::adaptor_functor >::operator() (this=0x17352f0) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251 #6 0x00000000007aa1df in sigc::internal::slot_call0, void>::call_it (rep=0x17352c0) at libs/sigc++2/sigc++/functors/slot.h:103 #7 0x000000000078686b in sigc::slot0::operator() (this=0x1732908) at libs/sigc++2/sigc++/functors/slot.h:440 #8 0x00002b75b3e7ef2f in Glib::SignalProxyNormal::slot0_void_callback ( self=0x172fea0, data=0x1732900) at libs/glibmm2/glibmm/signalproxy.cc:95 #9 0x00002b75afadd7da in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #10 0x00002b75afaed6ba in ?? () from /usr/lib/libgobject-2.0.so.0 #11 0x00002b75afaee843 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #12 0x00002b75afaeea13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #13 0x00002b75b0db8f13 in _gtk_action_emit_activate () from /usr/lib/libgtk-x11-2.0.so.0 #14 0x00002b75afadd7da in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #15 0x00002b75afaed408 in ?? () from /usr/lib/libgobject-2.0.so.0 #16 0x00002b75afaee843 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #17 0x00002b75afaeea13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #18 0x00002b75b0f87e0a in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0 #19 0x00002b75b0e92450 in gtk_menu_shell_activate_item () from /usr/lib/libgtk-x11-2.0.so.0 #20 0x00002b75b0e93900 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #21 0x00002b75b0e8668d in _gtk_marshal_BOOLEAN__BOXED () from /usr/lib/libgtk-x11-2.0.so.0 #22 0x00002b75afadd7da in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #23 0x00002b75afaeda18 in ?? () from /usr/lib/libgobject-2.0.so.0 #24 0x00002b75afaee617 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #25 0x00002b75afaeea13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #26 0x00002b75b0f8413e in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #27 0x00002b75b0e7fc7d in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0 #28 0x00002b75b0e80c91 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0 #29 0x00002b75b132745c in ?? () from /usr/lib/libgdk-x11-2.0.so.0 #30 0x00002b75b0558a14 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #31 0x00002b75b055b85d in ?? () from /usr/lib/libglib-2.0.so.0 #32 0x00002b75b055bb6a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #33 0x00002b75b0e81023 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #34 0x00002b75af75c3a7 in Gtk::Main::run_impl (this=0xf00290) at libs/gtkmm2/gtk/gtkmm/main.cc:503 #35 0x00002b75af75c234 in Gtk::Main::run () at libs/gtkmm2/gtk/gtkmm/main.cc:450 #36 0x00002b75aed62ac3 in Gtkmm2ext::UI::run (this=0xf003c0, old_receiver=@0xec4ee0) at libs/gtkmm2ext/gtk_ui.cc:216 #37 0x00000000009eb22d in main (argc=1, argv=0x7ffffc88afc8) at gtk2_ardour/main.cc:296