xfdesktop crashed with SIGSEGV in g_closure_invoke()

[Ron Steed]

Binary package hint: xfdesktop4

Opened Firefox 4.0 and when to a new page and a long pause happened and then the crash dialog came up.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xfdesktop4 4.8.1-1ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Mon Apr 11 12:15:40 2011
ExecutablePath: /usr/bin/xfdesktop
InstallationMedia: Xubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
ProcCmdline: xfdesktop
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x267ae7: mov (%esi),%edx
 PC (0x00267ae7) ok
 source "(%esi)" (0x00000035) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: xfdesktop4
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 g_closure_invoke () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: xfdesktop crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[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 #724816, 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.