(gdb) bt
#0  0x00002aaaad7e642d in cuserid () from /lib/tls/libc.so.6
#1  0x00002aaaad7e84c0 in vfprintf () from /lib/tls/libc.so.6
#2  0x00002aaaad8087b6 in vasprintf () from /lib/tls/libc.so.6
#3  0x00002aaaad665e30 in g_vasprintf () from /usr/lib/libglib-2.0.so.0
#4  0x00002aaaad653d0a in g_strdup_vprintf () from /usr/lib/libglib-2.0.so.0
#5  0x00002aaaab4b8d16 in gtk_message_dialog_new ()
   from /usr/lib/libgtk-x11-2.0.so.0
#6  0x0000000000452708 in ?? ()
#7  0x00002aaaad298bec in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#8  0x00002aaaad2ad584 in g_signal_has_handler_pending ()
   from /usr/lib/libgobject-2.0.so.0
#9  0x00002aaaad2ae99b in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#10 0x00002aaaad2aeeb3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#11 0x00002aaaab3d325b in gtk_action_create_menu_item ()
   from /usr/lib/libgtk-x11-2.0.so.0
#12 0x0000000000451f85 in ?? ()
#13 0x00000000004193b4 in ?? ()
#14 0x00002aaaad298bec in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#15 0x00002aaaad2adc6c in g_signal_has_handler_pending ()
   from /usr/lib/libgobject-2.0.so.0
#16 0x00002aaaad2af1cf in g_signal_emitv () from /usr/lib/libgobject-2.0.so.0
#17 0x00002aaaab3da4fd in gtk_bin_get_child ()
   from /usr/lib/libgtk-x11-2.0.so.0
#18 0x00002aaaab3db742 in gtk_binding_set_by_class ()
   from /usr/lib/libgtk-x11-2.0.so.0
#19 0x00002aaaab3db9c9 in gtk_binding_set_by_class ()
   from /usr/lib/libgtk-x11-2.0.so.0
#20 0x00002aaaab3dbc19 in gtk_bindings_activate_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#21 0x00002aaaab4a6ef8 in gtk_marshal_VOID__UINT_STRING ()
   from /usr/lib/libgtk-x11-2.0.so.0
#22 0x00002aaaad298bec in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#23 0x00002aaaad2adc6c in g_signal_has_handler_pending ()
   from /usr/lib/libgobject-2.0.so.0
#24 0x00002aaaad2ae5a6 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#25 0x00002aaaad2aeeb3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#26 0x00002aaaab594670 in gtk_widget_activate ()
   from /usr/lib/libgtk-x11-2.0.so.0
#27 0x00002aaaab5a305d in gtk_window_propagate_key_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#28 0x00002aaaab5a759b in gtk_window_activate_key ()
   from /usr/lib/libgtk-x11-2.0.so.0
#29 0x00002aaaab4a6ef8 in gtk_marshal_VOID__UINT_STRING ()
   from /usr/lib/libgtk-x11-2.0.so.0
#30 0x00002aaaad298bec in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#31 0x00002aaaad2adc6c in g_signal_has_handler_pending ()
   from /usr/lib/libgobject-2.0.so.0
#32 0x00002aaaad2ae5a6 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#33 0x00002aaaad2aeeb3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#34 0x00002aaaab594670 in gtk_widget_activate ()
   from /usr/lib/libgtk-x11-2.0.so.0
#35 0x00002aaaab4a53a8 in gtk_propagate_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#36 0x00002aaaab4a55fc in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#37 0x00002aaaab91b830 in gdk_event_get_graphics_expose ()
   from /usr/lib/libgdk-x11-2.0.so.0
#38 0x00002aaaad63c456 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#39 0x00002aaaad63de78 in g_main_context_acquire ()
   from /usr/lib/libglib-2.0.so.0
#40 0x00002aaaad63e1da in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#41 0x00002aaaab4a4ad1 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#42 0x000000000041ab71 in ?? ()
#43 0x00002aaaad7c3674 in __libc_start_main () from /lib/tls/libc.so.6
#44 0x000000000041929a in ?? ()
#45 0x00007fffff9dff18 in ?? ()
#46 0x000000000000001c in ?? ()
#47 0x0000000000000001 in ?? ()
#48 0x00007fffff9e085e in ?? ()
#49 0x0000000000000000 in ?? ()