https://bugzilla.gnome.org/show_bug.cgi?id=728157

[jmc@Arch64 ~]$ gdb /usr/lib/notification-daemon-1.0/notification-daemon
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Reading symbols from /usr/lib/notification-daemon-1.0/notification-daemon...Reading symbols from /usr/lib/debug//usr/lib/notification-daemon-1.0/notification-daemon.debug...done.
done.
(gdb) run
Starting program: /usr/lib/notification-daemon-1.0/notification-daemon
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffee5eb700 (LWP 6863)]
[New Thread 0x7fffeddea700 (LWP 6864)]

(notification-daemon:6859): GLib-CRITICAL **: Source ID 8 was not found when attempting to remove it

Program received signal SIGTRAP, Trace/breakpoint trap.
g_logv (log_domain=0x7ffff641adae "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7fffffffe338) at gmessages.c:1038
1038          g_private_set (&g_log_depth, GUINT_TO_POINTER (depth));
(gdb) bt
#0  g_logv (log_domain=0x7ffff641adae "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7fffffffe338) at gmessages.c:1038
#1  0x00007ffff63dcc4a in g_log (log_domain=log_domain@entry=0x7ffff641adae "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL,
    format=format@entry=0x7ffff64222f8 "Source ID %u was not found when attempting to remove it") at gmessages.c:1071
#2  0x00007ffff63d4b0c in g_source_remove (tag=8) at gmain.c:2194
#3  0x000000000040a939 in queue_update (queue=0x66f170) at nd-queue.c:929
#4  0x00007ffff66a55b8 in g_closure_invoke (closure=0x81e590, return_value=0x0, n_param_values=1, param_values=0x7fffffffe5e0, invocation_hint=0x7fffffffe580) at gclosure.c:768
#5  0x00007ffff66b7a1e in signal_emit_unlocked_R (node=node@entry=0x6841e0, detail=detail@entry=0, instance=instance@entry=0x7b82b0, emission_return=emission_return@entry=0x0,
    instance_and_params=instance_and_params@entry=0x7fffffffe5e0) at gsignal.c:3551
#6  0x00007ffff66bfa59 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffffffe778) at gsignal.c:3307
#7  0x00007ffff66bfd1a in g_signal_emit (instance=instance@entry=0x7b82b0, signal_id=<optimized out>, detail=detail@entry=0) at gsignal.c:3363
#8  0x00007ffff797f038 in gtk_widget_dispose (object=0x7b82b0) at gtkwidget.c:11357
#9  0x00007ffff798cb39 in gtk_window_dispose (object=0x7b82b0) at gtkwindow.c:2684
#10 0x00007ffff66abf30 in g_object_run_dispose (object=0x7b82b0) at gobject.c:1073
#11 0x00007ffff7971b2e in gtk_widget_destroy (widget=<optimized out>) at gtkwidget.c:4333
#12 0x000000000040815a in timeout_bubble (bubble=0x7b82b0, bubble@entry=<error reading variable: value has been optimized out>) at nd-bubble.c:390
#13 0x00007ffff63d65b3 in g_timeout_dispatch (source=0x810190, callback=<optimized out>, user_data=<optimized out>) at gmain.c:4472
#14 0x00007ffff63d5b95 in g_main_dispatch (context=0x675430) at gmain.c:3064
#15 g_main_context_dispatch (context=context@entry=0x675430) at gmain.c:3663
#16 0x00007ffff63d5ef8 in g_main_context_iterate (context=0x675430, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3734
#17 0x00007ffff63d61ba in g_main_loop_run (loop=0x7097c0) at gmain.c:3928
#18 0x00007ffff782db85 in gtk_main () at gtkmain.c:1191
#19 0x00000000004063ba in main (argc=1, argv=0x7fffffffeb08) at daemon.c:391
(gdb)
