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["Stephen M. Webb" <stephen.webb@xxxxxxxxxxxxx>]

** Changed in: unity
    Milestone: 7.3.1 => 7.3.2

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https://bugs.launchpad.net/bugs/956515

Title:
  compiz crashed with SIGSEGV in
  CompPlugin::VTableForScreenAndWindow<SwitchScreen,
  SwitchWindow>::finiWindow()

Status in Compiz:
  Confirmed
Status in Unity:
  Confirmed
Status in compiz package in Ubuntu:
  Confirmed
Status in unity package in Ubuntu:
  Confirmed
Status in compiz source package in Precise:
  Confirmed
Status in unity source package in Precise:
  Confirmed

Bug description:
  Activating the plugin to move between windows

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: compiz-core 1:0.9.7.0+bzr3035-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
  Uname: Linux 3.2.0-18-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.94.1-0ubuntu2
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,dbus,grid,mousepoll,regex,gnomecompat,obs,screenshot,vpswitch,move,wall,snap,resize,place,imgpng,session,animation,workarounds,fade,scale,expo,ezoom,unityshell]
  CompositorRunning: compiz
  CrashCounter: 1
  CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
  Date: Thu Mar 15 15:25:15 2012
  DistUpgraded: Log time: 2012-02-07 14:09:57.784633
  DistroCodename: precise
  DistroVariant: ubuntu
  DkmsStatus: bcmwl, 5.100.82.38+bdcom, 3.2.0-18-generic, x86_64: installed
  ExecutablePath: /usr/bin/compiz
  GraphicsCard:
   Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:0447]
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: Dell Inc. Inspiron N5010
  ProcCmdline: compiz
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=d0964c53-410c-45ce-9346-7dcae10cea85 ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x7f58035ec881 <_ZN10CompPlugin24VTableForScreenAndWindowI12SwitchScreen12SwitchWindowE10finiWindowEP10CompWindow+17>:	mov    (%rax),%rdx
   PC (0x7f58035ec881) ok
   source "(%rax)" (0x6060606060606060) not located in a known VMA region (needed readable region)!
   destination "%rdx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: compiz
  StacktraceTop:
   CompPlugin::VTableForScreenAndWindow<SwitchScreen, SwitchWindow>::finiWindow(CompWindow*) () from /usr/lib/compiz/libswitcher.so
   CompPlugin::windowFiniPlugins(CompWindow*) () from /usr/lib/libcompiz_core.so.ABI-20120228
   CompWindow::~CompWindow() () from /usr/lib/libcompiz_core.so.ABI-20120228
   CompWindow::~CompWindow() () from /usr/lib/libcompiz_core.so.ABI-20120228
   compiz::private_screen::WindowManager::removeDestroyed() () from /usr/lib/libcompiz_core.so.ABI-20120228
  Title: compiz crashed with SIGSEGV in CompPlugin::VTableForScreenAndWindow<SwitchScreen, SwitchWindow>::finiWindow()
  UpgradeStatus: Upgraded to precise on 2012-02-25 (19 days ago)
  UserGroups:
   
  dmi.bios.date: 07/19/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.name: 0WXY9J
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A15
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A15
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd07/19/2011:svnDellInc.:pnInspironN5010:pvrA15:rvnDellInc.:rn0WXY9J:rvrA15:cvnDellInc.:ct8:cvrA15:
  dmi.product.name: Inspiron N5010
  dmi.product.version: A15
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.7.0+bzr3035-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu34
  version.libdrm2: libdrm2 2.4.30-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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