unity-window-decorator crashed with SIGSEGV in g_slice_alloc()

[Daniel Hahler]

It crashed when trying to configure two external monitors.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: compiz-gnome 1:0.9.6+bzr20110929-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
CrashCounter: 1
Date: Tue Oct 18 11:38:36 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/unity-window-decorator
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANGUAGE=en_US:en
 LC_TIME=en_US.UTF-8
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/usr/bin/zsh
SegvAnalysis:
 Segfault happened at: 0xb6dc19cd <g_slice_alloc+269>: mov (%edi),%edx
 PC (0xb6dc19cd) ok
 source "(%edi)" (0xffffffff) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_slice_alloc () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_slice_alloc0 () from /lib/i386-linux-gnu/libglib-2.0.so.0
 gdk_event_new () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
Title: unity-window-decorator crashed with SIGSEGV in g_slice_alloc()
UpgradeStatus: Upgraded to oneiric on 2011-09-29 (18 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare vboxusers

[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 #741395, 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.