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[Launchpad Bug Tracker <833729@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: unity (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/833729

Title:
  compiz crashed with SIGSEGV in CompositeScreen::compositingActive()

Status in Compiz Core:
  Fix Released
Status in Unity:
  Fix Released
Status in Unity Distro Priority:
  Fix Released
Status in compiz package in Ubuntu:
  Fix Released
Status in unity package in Ubuntu:
  Confirmed

Bug description:
  Crashes when used by /usr/lib/nux/unity_support_test

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: compiz-core 1:0.9.5.92+bzr2791-0ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
  Uname: Linux 3.0.0-9-generic x86_64
  Architecture: amd64
  CompizPlugins: [core,gtkloader,bailer,detection,composite,opengl,imgjpeg,compiztoolbox,decor,grid,mousepoll,wallpaper,resize,move,place,imgpng,imgsvg,gnomecompat,text,snap,wall,vpswitch,regex,session,thumbnail,unitymtgrabhandles,animation,expo,workarounds,ezoom,staticswitcher,fade,opacify,scale,unityshell]
  CompositorRunning: compiz
  CrashCounter: 1
  Date: Thu Aug 25 07:50:21 2011
  DistUpgraded: Log time: 2011-08-12 01:37:52.657651
  DistroCodename: oneiric
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/compiz
  GraphicsCard:
   Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:0487]
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 003: ID 04f2:b1d8 Chicony Electronics Co., Ltd
  MachineType: Acer Aspire 5742Z
  ProcCmdline: compiz
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-9-generic root=UUID=beff164b-12df-49d5-b810-f23d5495eb50 ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x7f2969ce32e0 <_ZN15CompositeScreen17compositingActiveEv>:	mov    0x48(%rdi),%rax
   PC (0x7f2969ce32e0) ok
   source "0x48(%rdi)" (0x00000048) not located in a known VMA region (needed readable region)!
   destination "%rax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: compiz
  StacktraceTop:
   CompositeScreen::compositingActive() () from /usr/lib/compiz/libcomposite.so
   PrivateCompositeWindow::PrivateCompositeWindow(CompWindow*, CompositeWindow*) () from /usr/lib/compiz/libcomposite.so
   CompositeWindow::CompositeWindow(CompWindow*) () from /usr/lib/compiz/libcomposite.so
   PluginClassHandler<CompositeWindow, CompWindow, 2>::get(CompWindow*) () from /usr/lib/compiz/libopengl.so
   PrivateGLWindow::PrivateGLWindow(CompWindow*, GLWindow*) () from /usr/lib/compiz/libopengl.so
  Title: compiz crashed with SIGSEGV in CompositeScreen::compositingActive()
  UpgradeStatus: Upgraded to oneiric on 2011-08-12 (13 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 01/10/2011
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.14
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Aspire 5742Z
  dmi.board.vendor: Acer
  dmi.board.version: V1.14
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.14
  dmi.modalias: dmi:bvnAcer:bvrV1.14:bd01/10/2011:svnAcer:pnAspire5742Z:pvrV1.14:rvnAcer:rnAspire5742Z:rvrV1.14:cvnAcer:ct10:cvrV1.14:
  dmi.product.name: Aspire 5742Z
  dmi.product.version: V1.14
  dmi.sys.vendor: Acer
  version.compiz: compiz 1:0.9.5.92+bzr2791-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu16
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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