#0 0xffffffff in gtk_menu_tracker_model_changed (tracker=0xb452a5c0, tracker=0xb452a5c0, n_items=1, offset=<optimized out>, change_point=0xb450e30c)
at /build/gtk+3.0-78a2wN/gtk+3.0-3.16.7/./gtk/gtkmenutracker.c:290
#1 0xffffffff in gtk_menu_tracker_model_changed (model=0x8adb540 [GDBusMenuModel], position=-1, removed=1, added=0, user_data=0xb452a5c0)
at /build/gtk+3.0-78a2wN/gtk+3.0-3.16.7/./gtk/gtkmenutracker.c:451
#2 0xffffffff in ffi_call_SYSV () at /usr/lib/i386-linux-gnu/libffi.so.6
#3 0xffffffff in ffi_call () at /usr/lib/i386-linux-gnu/libffi.so.6
#8 0xffffffff in <emit signal ??? on instance 0x8adb540 [GDBusMenuModel]> (instance=0x8adb540, signal_id=333, detail=0)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gobject/gsignal.c:3439
#4 0xffffffff in g_cclosure_marshal_generic (closure=0x8f08750, return_gvalue=0x0, n_param_values=4, param_values=0xbfcbb500, invocation_hint=0xbfcbb4a4, marshal_data=0x0)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gobject/gclosure.c:1481
#5 0xffffffff in g_closure_invoke (closure=0x8f08750, return_value=0x0, n_param_values=4, param_values=0xbfcbb500, invocation_hint=0xbfcbb4a4)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gobject/gclosure.c:801
#6 0xffffffff in signal_emit_unlocked_R (node=node@entry=0x8b92668, detail=detail@entry=0, instance=instance@entry=0x8adb540, emission_return=0x0, instance_and_params=0xbfcbb500)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gobject/gsignal.c:3627
#7 0xffffffff in g_signal_emit_valist (instance=0x8adb540, signal_id=333, detail=0, var_args=0xbfcbb698 "y\223\217\266")
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gobject/gsignal.c:3383
#9 0xffffffff in g_menu_model_items_changed (model=0x8adb540 [GDBusMenuModel], position=-1, removed=1, added=0)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gio/gmenumodel.c:690
#10 0xffffffff in g_dbus_menu_group_changed (added=0, removed=1, position=-1, items=0x0, proxy=<optimized out>)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gio/gdbusmenumodel.c:832
#11 0xffffffff in g_dbus_menu_group_changed (group=0x8da9e00, menu_id=4, position=-1, removed=1, added=0xb4526220)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gio/gdbusmenumodel.c:635
#12 0xffffffff in g_dbus_menu_path_signal (connection=0x8a44048 [GDBusConnection], sender_name=0xb45023a0 ":1.923", object_path=0xb45257c0 "/com/canonical/unity/gtk/window/2", interface_name=0xb451b498 "org.gtk.Menus", signal_name=0xb45023f0 "Changed", parameters=0xb4529fc8, user_data=0xb4510a48)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gio/gdbusmenumodel.c:298
#13 0xffffffff in emit_signal_instance_in_idle_cb (data=0xb4525770)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gio/gdbusconnection.c:3701
#14 0xffffffff in g_idle_dispatch (source=0xb4514d00, callback=0xb6b12d50 <emit_signal_instance_in_idle_cb>, user_data=0xb4525770)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./glib/gmain.c:5441
#15 0xffffffff in g_main_context_dispatch (context=0x8a2dbd0)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./glib/gmain.c:3154
#16 0xffffffff in g_main_context_dispatch (context=0x8a2dbd0)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./glib/gmain.c:3769
#17 0xffffffff in g_main_context_iterate (context=0x8a2dbd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./glib/gmain.c:3840
#18 0xffffffff in g_main_loop_run (loop=0x8b058c0)
at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./glib/gmain.c:4034
#19 0xffffffff in gtk_main ()
at /build/gtk+3.0-78a2wN/gtk+3.0-3.16.7/./gtk/gtkmain.c:1219
#20 0x0804c314 in main ()