unity-panel-service crashed with SIGSEGV in g_main_context_dispatch()

[Alan Jenkins]

Running "GNOME classic (no effects)". I think the crash was in response to a mouse click on the top panel somewhere.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-services 4.22.0-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,resize,move,gnomecompat,grid,place,snap,vpswitch,imgpng,mousepoll,regex,wall,animation,session,fade,unitymtgrabhandles,expo,scale,workarounds,ezoom,unityshell]
Date: Fri Oct 14 13:35:53 2011
ExecutablePath: /usr/lib/unity/unity-panel-service
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
SegvAnalysis:
 Segfault happened at: 0x40577a: mov (%rbx),%rdx
 PC (0x0040577a) ok
 source "(%rbx)" (0x2d6e6f6e2064696c) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/gtk-3.0/modules/libatk-bridge.so
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_main_context_dispatch()
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (0 days ago)
UserGroups: adm admin cdrom dialout dip fax floppy fuse plugdev tape video
XsessionErrors:
 (gnome-panel:11780): Gtk-CRITICAL **: gtk_orientable_get_orientation: assertion `GTK_IS_ORIENTABLE (orientable)' failed
 (gnome-panel:11780): Gtk-CRITICAL **: gtk_orientable_get_orientation: assertion `GTK_IS_ORIENTABLE (orientable)' failed
 (nautilus:11784): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
 (nautilus:11784): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
 (nautilus:11784): GLib-CRITICAL **: g_hash_table_foreach: assertion `version == hash_table->version' failed

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #869816, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.