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[Bug 948246] [NEW] compiz crashed with SIGSEGV in CompWindow::outputRect()


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changed some unity plugin settings, but probably more significant,
enabled the application switcher plugin and had it take over Alt-Tab.
This is required to give the unity UI any kind of sane window switching

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: 1.94-0ubuntu2
Architecture: i386
CrashCounter: 1
Date: Tue Mar  6 18:38:47 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: compiz
 Segfault happened at: 0x17a7de <_ZNK10CompWindow10outputRectEv+30>:	mov    0x80(%esi),%eax
 PC (0x0017a7de) ok
 source "0x80(%esi)" (0x0000007f) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
 CompWindow::outputRect() const () from /usr/lib/libcompiz_core.so.ABI-20120216
 DecorWindow::computeShadowRegion() () 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
 PrivateAnimWindow::windowNotify(CompWindowNotify) () from /usr/lib/compiz/libanimation.so
Title: compiz crashed with SIGSEGV in CompWindow::outputRect()
UpgradeStatus: Upgraded to precise on 2011-12-04 (92 days ago)
UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare

** Affects: compiz (Ubuntu)
     Importance: Medium
         Status: New

** Tags: apport-crash i386 precise
compiz crashed with SIGSEGV in CompWindow::outputRect()
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