#0  0xb5a5d12a in notify_have_shell (manager=0x9d3da30) at gsd-xsettings-manager.c:717
  712: notify_have_shell (GnomeXSettingsManager   *manager)
  713: {
  714:         int i;
  715: 
  716:         gnome_settings_profile_start (NULL);
  717:         for (i = 0; manager->priv->managers [i]; i++) {
  718:                 /* Shell is showing appmenu if either GNOME Shell or Unity is running. */
  719:                 xsettings_manager_set_int (manager->priv->managers [i], "Gtk/ShellShowsAppMenu",
  720:                                            manager->priv->have_shell || manager->priv->have_unity);
  721:                 /* Shell is showing menubar *only* if Unity runs */
  722:                 xsettings_manager_set_int (manager->priv->managers [i], "Gtk/ShellShowsMenubar",
#1  0xb714baa7 in actually_do_call (client=<optimized out>, connection=<optimized out>, name_owner=0x9f4c858 ":1.10", call_type=CALL_TYPE_NAME_VANISHED) at /build/buildd/glib2.0-2.38.0/./gio/gdbusnamewatching.c:164
  [Error: /build/buildd/glib2.0-2.38.0/./gio/gdbusnamewatching.c was not found in source tree]
#2  0xb714bc1c in do_call (client=0x9d88508, call_type=CALL_TYPE_NAME_VANISHED) at /build/buildd/glib2.0-2.38.0/./gio/gdbusnamewatching.c:216
  [Error: /build/buildd/glib2.0-2.38.0/./gio/gdbusnamewatching.c was not found in source tree]
#3  0xb68483c6 in ffi_call_SYSV () at ../src/x86/sysv.S:65
  [Error: ../src/x86/sysv.S was not found in source tree]
#4  0xb684814b in ffi_call (cif=<optimized out>, cif@entry=0xbfcbb784, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, avalue@entry=0xbfcbb6d0) at ../src/x86/ffi.c:411
  [Error: ../src/x86/ffi.c was not found in source tree]
#5  0xb703a129 in g_cclosure_marshal_generic (closure=0x9d93cf8, return_gvalue=0x0, n_param_values=3, param_values=0xbfcbb8f0, invocation_hint=0xbfcbb89c, marshal_data=0x0) at /build/buildd/glib2.0-2.38.0/./gobject/gclosure.c:1454
  [Error: /build/buildd/glib2.0-2.38.0/./gobject/gclosure.c was not found in source tree]
#6  0xb70398ae in g_closure_invoke (closure=0x9d93cf8, return_value=return_value@entry=0x0, n_param_values=3, param_values=param_values@entry=0xbfcbb8f0, invocation_hint=invocation_hint@entry=0xbfcbb89c) at /build/buildd/glib2.0-2.38.0/./gobject/gclosure.c:777
  [Error: /build/buildd/glib2.0-2.38.0/./gobject/gclosure.c was not found in source tree]
#7  0xb704bdf9 in signal_emit_unlocked_R (node=node@entry=0x9d32da8, detail=0, instance=0x9d33818, emission_return=emission_return@entry=0x0, instance_and_params=0xbfcbb8f0) at /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c:3586
  [Error: /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c was not found in source tree]
#8  0xb7053753 in g_signal_emit_valist (instance=instance@entry=0x9d33818, signal_id=signal_id@entry=143, detail=detail@entry=0, var_args=0xbfcbba54 "l\272\313\277", var_args@entry=0xbfcbba4c "\001") at /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c:3330
  [Error: /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c was not found in source tree]
#9  0xb70539e3 in g_signal_emit (instance=0x9d33818, signal_id=143, detail=detail@entry=0) at /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c:3386
  [Error: /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c was not found in source tree]
#10 0xb713ba7a in emit_closed_in_idle (user_data=user_data@entry=0xb4f3f7f0) at /build/buildd/glib2.0-2.38.0/./gio/gdbusconnection.c:1389
  [Error: /build/buildd/glib2.0-2.38.0/./gio/gdbusconnection.c was not found in source tree]
#11 0xb6f6a590 in g_idle_dispatch (source=source@entry=0xb4f3e100, callback=0xb713ba20 <emit_closed_in_idle>, user_data=0xb4f3f7f0) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:5250
  [Error: /build/buildd/glib2.0-2.38.0/./glib/gmain.c was not found in source tree]
#12 0xb6f6d82e in g_main_dispatch (context=0x9d15960) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3065
  [Error: /build/buildd/glib2.0-2.38.0/./glib/gmain.c was not found in source tree]
#13 g_main_context_dispatch (context=context@entry=0x9d15960) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3641
  [Error: /build/buildd/glib2.0-2.38.0/./glib/gmain.c was not found in source tree]
#14 0xb6f6dbd8 in g_main_context_iterate (context=0x9d15960, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3712
  [Error: /build/buildd/glib2.0-2.38.0/./glib/gmain.c was not found in source tree]
#15 0xb6f6e03b in g_main_loop_run (loop=loop@entry=0x9d341a8) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3906
  [Error: /build/buildd/glib2.0-2.38.0/./glib/gmain.c was not found in source tree]
#16 0xb7383c9d in gtk_main () at /build/buildd/gtk+3.0-3.8.4/./gtk/gtkmain.c:1156
  [Error: /build/buildd/gtk+3.0-3.8.4/./gtk/gtkmain.c was not found in source tree]
#17 0x0804aa2b in main (argc=1, argv=0xbfcbbc64) at main.c:476
  471: 
  472:         if (do_timed_exit) {
  473:                 g_timeout_add_seconds (30, (GSourceFunc) timed_exit_cb, NULL);
  474:         }
  475: 
  476:         gtk_main ();
  477: 
  478:         g_debug ("Shutting down");
  479: 
  480:         if (name_id > 0) {
  481:                 g_bus_unown_name (name_id);