compiz crashed with SIGSEGV in PluginClassHandler<UnityWindow, CompWindow, 0>::get()

[jonathan luciano bueno]

la opcion alt-tab se mantenia visible y se congelaba todo el sistema tambien los efectos de compiz el lanzador no lanzaba las aplicaciones y los iconos que aparecen con alt-tab se mantenian siempre visibles por ensima de otras aplicaciones abiertas

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.10.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Sat Aug 27 01:03:48 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=es_DO:es
 PATH=(custom, no user)
 LANG=es_DO.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f4184224e4a <_ZN18PluginClassHandlerI11UnityWindow10CompWindowLi0EE3getEPS1_+378>: mov 0x30(%r12),%rax
 PC (0x7f4184224e4a) ok
 source "0x30(%r12)" (0x00000030) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 PluginClassHandler<UnityWindow, CompWindow, 0>::get(CompWindow*) () from /usr/lib/compiz/libunityshell.so
 UnityScreen::paintDisplay(CompRegion const&, GLMatrix const&, unsigned int) () from /usr/lib/compiz/libunityshell.so
 UnityWindow::glDraw(GLMatrix const&, GLFragment::Attrib&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libunityshell.so
 GLWindow::glDraw(GLMatrix const&, GLFragment::Attrib&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so
 GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so
Title: compiz crashed with SIGSEGV in PluginClassHandler<UnityWindow, CompWindow, 0>::get()
UpgradeStatus: Upgraded to oneiric on 2011-08-26 (1 days ago)
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 #832979, 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.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.