compiz crashed with SIGSEGV in CompWindow::~CompWindow()

[Sergio Meneses]

The compiz was closed unexpectedly when I was working, but not using desktop effects to the fullest. I just upgraded to Ubuntu Ubuntu 11.04 11.10. My operating system is now i386

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: compiz-core 1:0.9.5.94+bzr20110919-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic-pae 3.0.4
Uname: Linux 3.0.0-11-generic-pae i686
.tmp.unity.support.test.0:

ApportVersion: 1.23-0ubuntu1
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,imgpng,move,place,vpswitch,snap,grid,mousepoll,unitymtgrabhandles,wall,gnomecompat,session,resize,regex,animation,fade,expo,scale,ezoom,workarounds,unityshell]
CompositorRunning: compiz
Date: Fri Sep 23 13:56:42 2011
DistUpgraded: Log time: 2011-09-23 11:05:41.417250
DistroCodename: oneiric
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0506]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: Acer Aspire 4750
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=es_CO:es
 PATH=(custom, no user)
 LANG=es_CO.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic-pae root=UUID=92d0b8a0-c868-470c-b3d7-8fc93c4dac18 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x8088d51 <_ZN10CompWindowD2Ev+609>: mov 0x10(%eax),%edi
 PC (0x08088d51) ok
 source "0x10(%eax)" (0x00000010) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 CompWindow::~CompWindow() ()
 CompWindow::~CompWindow() ()
 PrivateScreen::removeDestroyed() ()
 PrivateScreen::processEvents() ()
 CompEventSource::callback() ()
Title: compiz crashed with SIGSEGV in CompWindow::~CompWindow()
UpgradeStatus: Upgraded to oneiric on 2011-09-23 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 08/08/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: V2.08
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Aspire 4750
dmi.board.vendor: Acer
dmi.board.version: V2.08
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Acer
dmi.chassis.version: V2.08
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.08:bd08/08/2011:svnAcer:pnAspire4750:pvrV2.08:rvnAcer:rnAspire4750:rvrV2.08:cvnAcer:ct9:cvrV2.08:
dmi.product.name: Aspire 4750
dmi.product.version: V2.08
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.5.94+bzr20110919-0ubuntu1
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+7ubuntu7
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

[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 #856921, 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.