#0  0x087e0d1a in TimeAxisViewItem::get_time_axis_view (this=0x0) at gtk2_ardour/time_axis_view_item.cc:539
#1  0x08605276 in Editor::set_selected_regionview_from_click (this=0x8d7ad18, press=true, op=Selection::Extend, no_track_remove=true)
    at gtk2_ardour/editor_selection.cc:644
#2  0x085ad6f1 in Editor::button_selection (this=0x8d7ad18, item=0x9106af8, event=0x90822d0, item_type=RegionItem) at gtk2_ardour/editor_mouse.cc:438
#3  0x085adac5 in Editor::button_press_handler (this=0x8d7ad18, item=0x9106af8, event=0x90822d0, item_type=RegionItem) at gtk2_ardour/editor_mouse.cc:520
#4  0x0859075d in Editor::canvas_region_view_event (this=0x8d7ad18, event=0x90822d0, item=0x9106af8, rv=0x9106b18) at gtk2_ardour/editor_canvas_events.cc:254
#5  0x08591309 in Editor::canvas_crossfade_view_event (this=0x8d7ad18, event=0x90822d0, item=0x911e130, xfv=0x911e000) at gtk2_ardour/editor_canvas_events.cc:585
#6  0x084f31ae in sigc::bound_mem_functor3<bool, PublicEditor, _GdkEvent*, Gnome::Canvas::Item*, CrossfadeView*>::operator() (this=0x911e4e8, _A_a1=@0xbfffe674, 
    _A_a2=@0xbfffe5bc, _A_a3=@0x911e4fc) at libs/sigc++2/sigc++/functors/mem_fun.h:1985
#7  0x084f2f5b in sigc::adaptor_functor<sigc::bound_mem_functor3<bool, PublicEditor, _GdkEvent*, Gnome::Canvas::Item*, CrossfadeView*> >::operator()<_GdkEvent* const&, Gnome::Canvas::Group*&, CrossfadeView*&> (this=0x911e4e4, _A_arg1=@0xbfffe674, _A_arg2=@0x911e4f8, _A_arg3=@0x911e4fc)
    at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:123
#8  0x084f2c6c in sigc::bind_functor<-1, sigc::bound_mem_functor3<bool, PublicEditor, _GdkEvent*, Gnome::Canvas::Item*, CrossfadeView*>, Gnome::Canvas::Group*, CrossfadeView*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::operator()<_GdkEvent* const&> (this=0x911e4e0, _A_arg1=@0xbfffe674)
    at libs/sigc++2/sigc++/adaptors/bind.h:1336
#9  0x084f28a1 in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor3<bool, PublicEditor, _GdkEvent*, Gnome::Canvas::Item*, CrossfadeView*>, Gnome::Canvas::Group*, CrossfadeView*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, bool, _GdkEvent*>::call_it (rep=0x911e4c8, a_1=@0xbfffe674)
    at libs/sigc++2/sigc++/functors/slot.h:137
#10 0x012fbd83 in sigc::slot1<bool, _GdkEvent*>::operator() (this=0x911c534, _A_a1=@0xbfffe674) at libs/sigc++2/sigc++/functors/slot.h:515
#11 0x015df679 in Item_signal_event_callback (self=0x90bca28, p0=0x90822d0, data=0x911c530) at libs/libgnomecanvasmm/libgnomecanvasmm/item.cc:138
#12 0x01595104 in gnome_canvas_marshal_BOOLEAN__BOXED () from /usr/lib/libgnomecanvas-2.so.0
#13 0x00987252 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#14 0x0099bd90 in ?? () from /usr/lib/libgobject-2.0.so.0
#15 0x0099cc33 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#16 0x0099d256 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#17 0x01590a09 in ?? () from /usr/lib/libgnomecanvas-2.so.0
#18 0x012f2008 in Gtk::Widget_Class::button_press_event_callback (self=0x8db8030, p0=0x9081298) at libs/gtkmm2/gtk/gtkmm/widget.cc:3768
#19 0x00c45424 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#20 0x009858b9 in ?? () from /usr/lib/libgobject-2.0.so.0
#21 0x00987252 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#22 0x0099b5e6 in ?? () from /usr/lib/libgobject-2.0.so.0
#23 0x0099cc33 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#24 0x0099d256 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#25 0x00d72636 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#26 0x00c3da5d in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0