unity-2d-panel crashed with SIGSEGV in QList<AbstractX11EventFilter*>::removeAll()

[Felix Zweig]

Binary package hint: unity-2d

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity-2d-panel 3.2.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-2.29-generic 2.6.38-rc3
Uname: Linux 2.6.38-2-generic i686
Architecture: i386
CrashCounter: 1
Date: Mon Feb 7 11:21:47 2011
ExecutablePath: /usr/bin/unity-2d-panel
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110202)
ProcCmdline: unity-2d-panel
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 LC_MESSAGES=en_US.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x116a77 <_ZN5QListIP22AbstractX11EventFilterE9removeAllERKS1_+23>: mov (%edx),%eax
 PC (0x00116a77) ok
 source "(%edx)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 QList<AbstractX11EventFilter*>::removeAll(AbstractX11EventFilter* const&) () from /usr/lib/libuqpanel.so.0
 Unity2dApplication::removeX11EventFilter(AbstractX11EventFilter*) () from /usr/lib/libuqpanel.so.0
 AbstractX11EventFilter::~AbstractX11EventFilter() () from /usr/lib/libuqpanel.so.0
 KeyboardModifiersMonitor::~KeyboardModifiersMonitor() () from /usr/lib/libuqpanel.so.0
 KeyboardModifiersMonitor::~KeyboardModifiersMonitor() () from /usr/lib/libuqpanel.so.0
Title: unity-2d-panel crashed with SIGSEGV in QList<AbstractX11EventFilter*>::removeAll()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (<unknown>:3360): Gtk-CRITICAL **: IA__gtk_widget_realize: assertion `GTK_WIDGET_ANCHORED (widget) || GTK_IS_INVISIBLE (widget)' failed
 (unity-2d-launcher:3362): Wnck-WARNING **: Received a timestamp of 0; window activation may not function properly.

[Felix Zweig (f.zweig)]

Probably a dublicate of bug #708429 and/or bug #710304...

[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 #708429, 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.