unity-panel-service crashed with SIGSEGV

[Xavier Fung]

Unity Panel frozen when a MP3 file is playing from movie player and the volume control just stuck with mouse and cannot control volume.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-services 4.12.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
ApportVersion: 1.22.1-0ubuntu2
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
Date: Fri Sep 9 19:45:46 2011
ExecutablePath: /usr/lib/unity/unity-panel-service
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANGUAGE=en_HK:en
 LANG=en_HK.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7fe3b4877550: mov %rbx,-0x30(%rsp)
 PC (0x7fe3b4877550) ok
 source "%rbx" ok
 destination "-0x30(%rsp)" (0x7fff08ca1fe8) not located in a known VMA region (needed writable region)!
 Stack memory exhausted (SP below stack segment)
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
Title: unity-panel-service crashed with SIGSEGV
UpgradeStatus: Upgraded to oneiric on 2011-08-26 (14 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 gtk_grab_notify_foreach (child=0x10ff040, data=0x7fff08ca20e0) at /build/buildd/gtk+3.0-3.1.18/./gtk/gtkmain.c:2097
 gtk_menu_shell_forall (container=<optimized out>, include_internals=<optimized out>, callback=0x7fe3b4877550 <gtk_grab_notify_foreach>, callback_data=0x7fff08ca20e0) at /build/buildd/gtk+3.0-3.1.18/./gtk/gtkmenushell.c:1264
 gtk_grab_notify_foreach (child=0x103c2b0, data=0x7fff08ca20e0) at /build/buildd/gtk+3.0-3.1.18/./gtk/gtkmain.c:2114
 gtk_grab_notify_foreach (child=0x10fa010, data=0x7fff08ca20e0) at /build/buildd/gtk+3.0-3.1.18/./gtk/gtkmain.c:2114
 gtk_grab_notify (group=0x1607a60, device=<optimized out>, old_grab_widget=<optimized out>, new_grab_widget=<optimized out>, from_grab=<optimized out>) at /build/buildd/gtk+3.0-3.1.18/./gtk/gtkmain.c:2187