** Changed in: unity
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/851982

Title:
  compiz crashed with SIGSEGV in CompWindow::id() from getPaintMask()
  [compizminimizedwindowhandler.h] from unity::UnityWindow::glPaint()

Status in Unity:
  Fix Released
Status in unity 5.0 series:
  Fix Committed
Status in “unity” package in Ubuntu:
  Fix Committed
Status in “unity” source package in Precise:
  In Progress

Bug description:
  compiz crashed with SIGSEGV in CompWindow::id() 2011:09:16

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: unity 4.16.0-0ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
  Uname: Linux 3.0.0-11-generic i686
  ApportVersion: 1.23-0ubuntu1
  Architecture: i386
  Date: Fri Sep 16 16:23:44 2011
  ExecutablePath: /usr/bin/compiz
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110905)
  ProcCmdline: compiz
  SegvAnalysis:
   Segfault happened at: 0x80810c7 <_ZN10CompWindow2idEv+7>:    mov    
0xc(%eax),%eax
   PC (0x080810c7) ok
   source "0xc(%eax)" (0x0000000c) not located in a known VMA region (needed 
readable region)!
   destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   CompWindow::id() ()
   UnityWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion 
const&, unsigned int) () from /usr/lib/compiz/libunityshell.so
   GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion 
const&, unsigned int) () from /usr/lib/compiz/libopengl.so
   PrivateGLScreen::paintOutputRegion(GLMatrix const&, CompRegion const&, 
CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so
   GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, 
CompRegion const&, CompOutput*, unsigned int) () from 
/usr/lib/compiz/libopengl.so
  Title: compiz crashed with SIGSEGV in CompWindow::id()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

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