Program received signal SIGSEGV, Segmentation fault.
0x08accbd5 in boost::detail::atomic_increment (pw=0x8af16f6) at /usr/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:66
66	    );
(gdb) where
#0  0x08accbd5 in boost::detail::atomic_increment (pw=0x8af16f6) at /usr/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:66
#1  0x08accc32 in boost::detail::sp_counted_base::add_ref_copy (this=0x8af16f2) at /usr/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:133
#2  0x08accc96 in boost::detail::shared_count::shared_count (this=0xbfffc838, r=...) at /usr/include/boost/smart_ptr/detail/shared_count.hpp:228
#3  0x08e6aea2 in boost::shared_ptr<ARDOUR::ExportChannelConfiguration>::shared_ptr (this=0xbfffc834) at /usr/include/boost/smart_ptr/shared_ptr.hpp:169
#4  0xb72d4927 in ARDOUR::ExportProfileManager::get_warnings (this=0xa8c2538) at ../libs/ardour/export_profile_manager.cc:733
#5  0x08e77df5 in ExportDialog::update_warnings (this=0xbfffd844) at ../gtk2_ardour/export_dialog.cc:248
#6  0x08e7cc56 in sigc::bound_mem_functor0<void, ExportDialog>::operator() (this=0xa6ea3e4) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#7  0x08e7c96c in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ExportDialog> >::operator() (this=0xa6ea3e0)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#8  0x08e7c5e8 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ExportDialog>, void>::call_it (rep=0xa6ea3c8)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#9  0x08af0d28 in sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0xa6ea398) at /usr/include/sigc++-2.0/sigc++/signal.h:776
#10 0x08afa002 in sigc::signal0<void, sigc::nil>::emit (this=0xa8b464c) at /usr/include/sigc++-2.0/sigc++/signal.h:2671
#11 0x08af59cd in sigc::signal0<void, sigc::nil>::operator() (this=0xa8b464c) at /usr/include/sigc++-2.0/sigc++/signal.h:2679
#12 0x08e6ab8b in TrackExportChannelSelector::update_config (this=0xa8b4620) at ../gtk2_ardour/export_channel_selector.cc:602
#13 0x08e73e58 in sigc::bound_mem_functor0<void, TrackExportChannelSelector>::operator() (this=0xa795760)
    at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#14 0x08e73b0a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, TrackExportChannelSelector> >::operator() (this=0xa79575c)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#15 0x08e735b6 in sigc::hide_functor<-0x00000000000000001, sigc::bound_mem_functor0<void, TrackExportChannelSelector> >::operator()<Glib::ustring const&> (
    this=0xa795758) at /usr/include/sigc++-2.0/sigc++/adaptors/hide.h:91
#16 0x08e72a29 in sigc::internal::slot_call1<sigc::hide_functor<-0x00000000000000001, sigc::bound_mem_functor0<void, TrackExportChannelSelector> >, void, Glib::ustring const&>::call_it (rep=0xa795740, a_1=...) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:137
#17 0xb50bf00e in ?? () from /usr/lib/libgtkmm-2.4.so.1
#18 0xb5adf6f8 in g_cclosure_marshal_VOID__STRING (closure=0xa850a88, return_value=0x0, n_param_values=2, param_values=0xa905c78, 
    invocation_hint=0xbfffcd10, marshal_data=0xb50befa0) at /build/buildd/glib2.0-2.26.1/gobject/gmarshal.c:498
#19 0xb5ad0412 in g_closure_invoke (closure=0xa850a88, return_value=0x0, n_param_values=2, param_values=0xa905c78, invocation_hint=0xbfffcd10)
    at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:766
#20 0xb5ae6f78 in signal_emit_unlocked_R (node=<value optimised out>, detail=<value optimised out>, instance=0xa71f820, emission_return=0x0, 
    instance_and_params=0xa905c78) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3322
#21 0xb5ae7fac in g_signal_emit_valist (instance=0xa71f820, signal_id=306, detail=0, 
    var_args=0xbfffcee0 "H\236\212\t\364\317&\265H\317\377\277\234m\v\265 \370q\nXAb\n\200\270\223\t\210\062\213\nH\320\377\277X\320\377\277")
    at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:2983
#22 0xb5ae8452 in g_signal_emit (instance=0xa71f820, signal_id=306, detail=0) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3040
#23 0xb577b57e in gtk_cell_renderer_toggle_activate (cell=0x8af16f6, event=0xa624158, widget=0x993b880, path=0xa8b3288 "0", background_area=0xbfffd048, 
    cell_area=0xbfffd058, flags=0) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkcellrenderertoggle.c:407
#24 0xb50b6d9c in Gtk::CellRenderer_Class::activate_vfunc_callback(_GtkCellRenderer*, _GdkEvent*, _GtkWidget*, char const*, _GdkRectangle*, _GdkRectangle*, GtkCellRendererState) () from /usr/lib/libgtkmm-2.4.so.1
#25 0xb57714de in IA__gtk_cell_renderer_activate (cell=0xa71f820, event=0xa624158, widget=0x993b880, path=0xa8b3288 "0", background_area=0xbfffd048, 
    cell_area=0xbfffd058, flags=0) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkcellrenderer.c:621
#26 0xb5940fe2 in gtk_tree_view_column_cell_process_action (tree_column=<value optimised out>, window=<value optimised out>, background_area=0xbfffd174, 
    cell_area=0xbfffd164, flags=0, action=2, expose_area=0x0, focus_rectangle=0x0, editable_widget=0xbfffd18c, event=0xa624158, path_string=0xa8b3288 "0")
    at /build/buildd/gtk+2.0-2.22.0/gtk/gtktreeviewcolumn.c:2912
#27 0xb5941492 in _gtk_tree_view_column_cell_event (tree_column=0xa6b8460, editable_widget=0xbfffd18c, event=0xa624158, path_string=0xa8b3288 "0", 
    background_area=0xbfffd174, cell_area=0xbfffd164, flags=0) at /build/buildd/gtk+2.0-2.22.0/gtk/gtktreeviewcolumn.c:3189
#28 0xb593e4ef in gtk_tree_view_button_press (widget=0x993b880, event=0xa624158) at /build/buildd/gtk+2.0-2.22.0/gtk/gtktreeview.c:2742
#29 0xb5189861 in Gtk::Widget_Class::button_press_event_callback(_GtkWidget*, _GdkEventButton*) () from /usr/lib/libgtkmm-2.4.so.1
#30 0xb5824284 in _gtk_marshal_BOOLEAN__BOXED (closure=0x9873c68, return_value=0xbfffd394, n_param_values=2, param_values=0xa8c53b8, 
    invocation_hint=0xbfffd380, marshal_data=0xb51897b0) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmarshalers.c:86
#31 0xb5acea87 in g_type_class_meta_marshal (closure=0x9873c68, return_value=0xbfffd394, n_param_values=2, param_values=0xa8c53b8, 
    invocation_hint=0xbfffd380, marshal_data=0xb0) at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:877
#32 0xb5ad0412 in g_closure_invoke (closure=0x9873c68, return_value=0xbfffd394, n_param_values=2, param_values=0xa8c53b8, invocation_hint=0xbfffd380)
---Type <return> to continue, or q <return> to quit---
    at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:766
#33 0xb5ae67d6 in signal_emit_unlocked_R (node=<value optimised out>, detail=<value optimised out>, instance=0x993b880, emission_return=0xbfffd4ec, 
    instance_and_params=0xa8c53b8) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3290
#34 0xb5ae7e2b in g_signal_emit_valist (instance=0x993b880, signal_id=33, detail=0, 
    var_args=0xbfffd550 "|\325\377\277\260\225\206\tx\325\377\277:)\225\265\364\257\253\265\200\270\223\t\230\325\377\277\200\270\223\t\200\270\223\t\260\225\206\t\230\325\377\277") at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:2993
#35 0xb5ae8452 in g_signal_emit (instance=0x993b880, signal_id=33, detail=0) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3040
#36 0xb5952b96 in gtk_widget_event_internal (widget=<value optimised out>, event=0xa624158) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkwidget.c:4985
#37 0xb581c85d in IA__gtk_propagate_event (widget=0x993b880, event=0xa624158) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmain.c:2465
#38 0xb581ded7 in IA__gtk_main_do_event (event=0xa624158) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmain.c:1626
#39 0xb56ae36a in gdk_event_dispatch (source=0x9866160, callback=0, user_data=0x0) at /build/buildd/gtk+2.0-2.22.0/gdk/x11/gdkevents-x11.c:2377
#40 0xb5d89855 in g_main_dispatch (context=0x98661a8) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2149
#41 g_main_context_dispatch (context=0x98661a8) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2702
#42 0xb5d8d668 in g_main_context_iterate (context=0x98661a8, block=<value optimised out>, dispatch=1, self=0x9839428)
    at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2780
#43 0xb5d8dba7 in g_main_loop_run (loop=0xb21f2858) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2988
#44 0xb57977ff in IA__gtk_dialog_run (dialog=0x993e330) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkdialog.c:1094
#45 0xb50cc206 in Gtk::Dialog::run() () from /usr/lib/libgtkmm-2.4.so.1
#46 0x08d76bef in Editor::stem_export (this=0x9acd120) at ../gtk2_ardour/editor_export_audio.cc:72
#47 0x08b78644 in sigc::bound_mem_functor0<void, PublicEditor>::operator() (this=0xa30795c) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
#48 0x08b76c1a in sigc::adaptor_functor<sigc::bound_mem_functor0<void, PublicEditor> >::operator() (this=0xa307958)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
#49 0x08b74fbc in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, PublicEditor>, void>::call_it (rep=0xa307940)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
#50 0xb5b4619b in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /usr/lib/libglibmm-2.4.so.1
#51 0xb5adff2c in g_cclosure_marshal_VOID__VOID (closure=0xa307970, return_value=0x0, n_param_values=1, param_values=0xaf68da78, 
    invocation_hint=0xbfffdc00, marshal_data=0xb5b46150) at /build/buildd/glib2.0-2.26.1/gobject/gmarshal.c:79
#52 0xb5ad0412 in g_closure_invoke (closure=0xa307970, return_value=0x0, n_param_values=1, param_values=0xaf68da78, invocation_hint=0xbfffdc00)
    at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:766
#53 0xb5ae6f78 in signal_emit_unlocked_R (node=<value optimised out>, detail=<value optimised out>, instance=0xa305d30, emission_return=0x0, 
    instance_and_params=0xaf68da78) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3322
#54 0xb5ae7fac in g_signal_emit_valist (instance=0xa305d30, signal_id=311, detail=0, 
    var_args=0xbfffddcc "4\312t\265\220\230.\np\275\206\t\370\335\377\277\364\257\253\265\060]0\n\240m\207\t\b\336\377\277-\324t\265\060]0\np\275\206\t\030\336\377\277\252A\203\265\364_\260\265\200\022\203\265H\336\377\277,\377\255\265\060]0\n u\210\tX\336\377\277\364_\260\265\230\204d\n\240m\207\tH\336\377\277\274V\257\265\230\204d\n\270#\223\tX\336\377\277\364_\260\265\230\204d\n\240m\207\t\210\336\377\277\207\352\254\265\240m\207\t")
    at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:2983
#55 0xb5ae8452 in g_signal_emit (instance=0xa305d30, signal_id=311, detail=0) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3040
#56 0xb574b325 in _gtk_action_emit_activate (action=0xa305d30) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkaction.c:794
#57 0xb574d42d in IA__gtk_action_activate (action=0xa305d30) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkaction.c:824
#58 0xb5adff2c in g_cclosure_marshal_VOID__VOID (closure=0x9876da0, return_value=0x0, n_param_values=1, param_values=0xa648498, invocation_hint=0xbfffdf90, 
    marshal_data=0xb5831280) at /build/buildd/glib2.0-2.26.1/gobject/gmarshal.c:79
#59 0xb5acea87 in g_type_class_meta_marshal (closure=0x9876da0, return_value=0x0, n_param_values=1, param_values=0xa648498, invocation_hint=0xbfffdf90, 
    marshal_data=0x1c0) at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:877
#60 0xb5ad0412 in g_closure_invoke (closure=0x9876da0, return_value=0x0, n_param_values=1, param_values=0xa648498, invocation_hint=0xbfffdf90)
    at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:766
#61 0xb5ae642a in signal_emit_unlocked_R (node=<value optimised out>, detail=<value optimised out>, instance=0xa343c98, emission_return=0x0, 
    instance_and_params=0xa648498) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3182
#62 0xb5ae7fac in g_signal_emit_valist (instance=0xa343c98, signal_id=96, detail=0, var_args=0xbfffe15c "&\377i\265\300\t\205\t")
    at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:2983
#63 0xb5ae8452 in g_signal_emit (instance=0xa343c98, signal_id=96, detail=0) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3040
#64 0xb5956945 in IA__gtk_widget_activate (widget=0xa343c98) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkwidget.c:5016
#65 0xb58343a0 in IA__gtk_menu_shell_activate_item (menu_shell=0xa346000, menu_item=0xa343c98, force_deactivate=1)
---Type <return> to continue, or q <return> to quit---
    at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmenushell.c:1361
#66 0xb5835d3f in gtk_menu_shell_button_release (widget=0xa346000, event=0xa5f2b80) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmenushell.c:788
#67 0xb582aa54 in gtk_menu_button_release (widget=0xa346000, event=0xa5f2b80) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmenu.c:3011
#68 0xb5824284 in _gtk_marshal_BOOLEAN__BOXED (closure=0x9873e58, return_value=0xbfffe404, n_param_values=2, param_values=0xa6efaa0, 
    invocation_hint=0xbfffe3f0, marshal_data=0xb582a9a0) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmarshalers.c:86
#69 0xb5acea87 in g_type_class_meta_marshal (closure=0x9873e58, return_value=0xbfffe404, n_param_values=2, param_values=0xa6efaa0, 
    invocation_hint=0xbfffe3f0, marshal_data=0xb4) at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:877
#70 0xb5ad0412 in g_closure_invoke (closure=0x9873e58, return_value=0xbfffe404, n_param_values=2, param_values=0xa6efaa0, invocation_hint=0xbfffe3f0)
    at /build/buildd/glib2.0-2.26.1/gobject/gclosure.c:766
#71 0xb5ae67d6 in signal_emit_unlocked_R (node=<value optimised out>, detail=<value optimised out>, instance=0xa346000, emission_return=0xbfffe55c, 
    instance_and_params=0xa6efaa0) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3290
#72 0xb5ae7e2b in g_signal_emit_valist (instance=0xa346000, signal_id=34, detail=0, 
    var_args=0xbfffe5c0 "\354\345\377\277\260\225\206\t\350\345\377\277:)\225\265\364\257\253\265") at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:2993
#73 0xb5ae8452 in g_signal_emit (instance=0xa346000, signal_id=34, detail=0) at /build/buildd/glib2.0-2.26.1/gobject/gsignal.c:3040
#74 0xb5952b96 in gtk_widget_event_internal (widget=<value optimised out>, event=0xa5f2b80) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkwidget.c:4985
#75 0xb581c85d in IA__gtk_propagate_event (widget=0xa346000, event=0xa5f2b80) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmain.c:2465
#76 0xb581dc17 in IA__gtk_main_do_event (event=0xa5f2b80) at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmain.c:1665
#77 0xb56ae36a in gdk_event_dispatch (source=0x9866160, callback=0, user_data=0x0) at /build/buildd/gtk+2.0-2.22.0/gdk/x11/gdkevents-x11.c:2377
#78 0xb5d89855 in g_main_dispatch (context=0x98661a8) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2149
#79 g_main_context_dispatch (context=0x98661a8) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2702
#80 0xb5d8d668 in g_main_context_iterate (context=0x98661a8, block=<value optimised out>, dispatch=1, self=0x9839428)
    at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2780
#81 0xb5d8dba7 in g_main_loop_run (loop=0xaf692ea8) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2988
#82 0xb581e1d9 in IA__gtk_main () at /build/buildd/gtk+2.0-2.22.0/gtk/gtkmain.c:1237
#83 0xb50f93b7 in Gtk::Main::run_impl() () from /usr/lib/libgtkmm-2.4.so.1
#84 0xb50f91b2 in Gtk::Main::run() () from /usr/lib/libgtkmm-2.4.so.1
#85 0xb6675700 in Gtkmm2ext::UI::run (this=0x9844b68, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:268
#86 0x08f46714 in main (argc=2, argv=0xbfffea44) at ../gtk2_ardour/main.cc:625