Chrash log : Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1238222624 (LWP 31766)] 0x08701cc0 in Gnome::Canvas::Item::gobj (this=0xb1b8c398) at libs/libgnomecanvasmm/libgnomecanvasmm/item.h:100 100 GnomeCanvasItem* gobj() { return reinterpret_cast(gobject_); } Backtrace : Thread 8 (Thread -1314382672 (LWP 31787)): #0 0xffffe410 in __kernel_vsyscall () #1 0xb67d0893 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7ed6555 in ARDOUR::OSC::osc_receiver (this=0x8a78030) at libs/ardour/osc.cc:324 #3 0xb7ed671d in ARDOUR::OSC::_osc_receiver (arg=0x8a78030) at libs/ardour/osc.cc:284 #4 0xb685131b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #5 0xb67da57e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 7 (Thread -1299354448 (LWP 31783)): #0 0xffffe410 in __kernel_vsyscall () #1 0xb67d0893 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7e8f886 in ARDOUR::Session::midi_thread_work (this=0x8ee6cf0) at libs/ardour/session_midi.cc:1207 #3 0xb7e8fe13 in ARDOUR::Session::_midi_thread_work (arg=0x8ee6cf0) at libs/ardour/session_midi.cc:1128 #4 0xb685131b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #5 0xb67da57e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 6 (Thread -1298850640 (LWP 31782)): #0 0xffffe410 in __kernel_vsyscall () #1 0xb67d0893 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7e714a4 in ARDOUR::Session::butler_thread_work (this=0x8ee6cf0) at libs/ardour/session_butler.cc:176 #3 0xb7e72267 in ARDOUR::Session::_butler_thread_work (arg=0x8ee6cf0) at libs/ardour/session_butler.cc:157 #4 0xb685131b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #5 0xb67da57e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 5 (Thread -1287652464 (LWP 31777)): #0 0xffffe410 in __kernel_vsyscall () #1 0xb67d0893 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb6a3ee0a in ?? () from /usr/lib/libjack-0.100.0.so.0 #3 0x08bb03f0 in ?? () #4 0x00000002 in ?? () #5 0x00000002 in ?? () #6 0x00000000 in ?? () Thread 2 (Thread -1245676368 (LWP 31774)): #0 0xffffe410 in __kernel_vsyscall () #1 0xb6858986 in ?? () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7629d72 in g_usleep () from /usr/lib/libglib-2.0.so.0 #3 0xb6d28f09 in Glib::usleep (microseconds=10000) at libs/glibmm2/glibmm/timer.cc:68 #4 0xb7d4b6aa in ARDOUR::AudioEngine::meter_thread (this=0x8bb05d8) at libs/ardour/audioengine.cc:412 #5 0xb7d4e2c0 in sigc::bound_mem_functor0::operator() (this=0x8bb0524) at libs/sigc++2/sigc++/functors/mem_fun.h:1781 #6 0xb7d4e2e2 in sigc::adaptor_functor >::operator() (this=0x8bb0520) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251 #7 0xb7d4e30e in sigc::internal::slot_call0, void>::call_it (rep=0x8bb0508) at libs/sigc++2/sigc++/functors/slot.h:103 #8 0x08397bde in sigc::slot0::operator() (this=0x8b10d18) at libs/sigc++2/sigc++/functors/slot.h:440 #9 0xb6d16b7f in call_thread_entry_slot (data=0x8b10d18) at libs/glibmm2/glibmm/thread.cc:43 #10 0xb7627b7f in ?? () from /usr/lib/libglib-2.0.so.0 #11 0x08b10d18 in ?? () #12 0x08bafd88 in ?? () #13 0xb684c000 in ?? () #14 0x00014084 in ?? () #15 0xb6712a18 in ?? () from /lib/tls/i686/cmov/libc.so.6 #16 0xb685fff4 in ?? () from /lib/tls/i686/cmov/libpthread.so.0 #17 0xb6853440 in ?? () from /lib/tls/i686/cmov/libpthread.so.0 #18 0xb685fff4 in ?? () from /lib/tls/i686/cmov/libpthread.so.0 #19 0x00000000 in ?? () Thread 1 (Thread -1238222624 (LWP 31766)): #0 0x08701cc0 in Gnome::Canvas::Item::gobj (this=0xb1b8c398) at libs/libgnomecanvasmm/libgnomecanvasmm/item.h:100 #1 0xb6f43bb5 in Gnome::Canvas::Item::ungrab (this=0xb1b8c398, etime=162942865) at libs/libgnomecanvasmm/libgnomecanvasmm/item.cc:692 #2 0x0851ac79 in Editor::end_grab (this=0x8cf6900, item=0xb1b8c398, event=0x90e2ed0) at gtk2_ardour/editor_mouse.cc:1626 #3 0x084f5ee4 in Editor::track_canvas_button_release_event (this=0x8cf6900, event=0x90e2ed0) at gtk2_ardour/editor_canvas_events.cc:152 #4 0x084b0ed5 in sigc::bound_mem_functor1::operator() (this=0x8c47e0c, _A_a1=@0xbfa91834) at libs/sigc++2/sigc++/functors/mem_fun.h:1838 #5 0x084b0ef5 in sigc::adaptor_functor >::operator()<_GdkEventButton* const&> (this=0x8c47e08, _A_arg1=@0xbfa91834) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:84 #6 0x084b0f1b in sigc::internal::slot_call1, bool, _GdkEventButton*>::call_it (rep=0x8c47df0, a_1=@0xbfa91834) at libs/sigc++2/sigc++/functors/slot.h:137 #7 0xb79155e1 in sigc::slot1::operator() ( this=0x8c47f0c, _A_a1=@0xbfa91834) at libs/sigc++2/sigc++/functors/slot.h:512 #8 0xb7911c78 in (anonymous namespace)::Widget_signal_button_release_event_callback (self=0x8d38070, p0=0x90e2ed0, data=0x8c47f08) at libs/gtkmm2/gtk/gtkmm/widget.cc:1125 #9 0xb735e6b0 in _gtk_marshal_BOOLEAN__BOXED () from /usr/lib/libgtk-x11-2.0.so.0 #10 0xb769162b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #11 0xb76a23f1 in ?? () from /usr/lib/libgobject-2.0.so.0 #12 0x08c47f38 in ?? () #13 0xbfa91980 in ?? () #14 0x00000002 in ?? () #15 0xbfa9196c in ?? () #16 0x00000004 in ?? () #17 0x08d38070 in ?? () #18 0x00000000 in ?? ()