compiz crashed with SIGSEGV in DecorWindow::computeShadowRegion()

[Tom]

I installed the indicator applets "system multiload" and "my weather indicator" before restarting unity (unity --replace), when this problem occured.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
Uname: Linux 3.2.0-18-generic i686
ApportVersion: 1.94.1-0ubuntu1
Architecture: i386
Date: Thu Mar 8 17:10:48 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0xb6f413 <_ZN11DecorWindow19computeShadowRegionEv+1251>: testb $0xc,(%eax)
 PC (0x00b6f413) ok
 source "$0xc" ok
 destination "(%eax)" (0x000004a0) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 DecorWindow::computeShadowRegion() () from /usr/lib/compiz/libdecor.so
 DecorWindow::update(bool) () from /usr/lib/compiz/libdecor.so
 DecorWindow::windowNotify(CompWindowNotify) () from /usr/lib/compiz/libdecor.so
 CompWindow::windowNotify(CompWindowNotify) () from /usr/lib/libcompiz_core.so.ABI-20120216
 unity::UnityWindow::windowNotify(CompWindowNotify) () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in DecorWindow::computeShadowRegion()
UpgradeStatus: Upgraded to precise on 2012-03-07 (1 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 DecorWindow::computeShadowRegion (this=0x907ad88) at /build/buildd/compiz-0.9.7.0~bzr2995/plugins/decor/src/decor.cpp:163
 DecorWindow::update (this=0x907ad88, allowDecoration=false) at /build/buildd/compiz-0.9.7.0~bzr2995/plugins/decor/src/decor.cpp:1527
 DecorWindow::windowNotify (this=0x907ad88, n=CompWindowNotifyUnreparent) at /build/buildd/compiz-0.9.7.0~bzr2995/plugins/decor/src/decor.cpp:2232
 CompWindow::windowNotify (this=0x8e139b0, n=CompWindowNotifyUnreparent) at /build/buildd/compiz-0.9.7.0~bzr2995/src/window.cpp:2648
 unity::UnityWindow::windowNotify (this=0x90624c8, n=CompWindowNotifyUnreparent) at /build/buildd/unity-5.4.0/plugins/unityshell/src/unityshell.cpp:2136

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 943116, so it 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. Feel free to continue to report any other bugs you may find.