unity-window-decorator crashed with SIGSEGV in event_filter_func()

[Alex-And-ER]

Binary package hint: compiz

compiz crashed

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-gnome 1:0.9.4-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Uname: Linux 2.6.38-6-generic i686
NonfreeKernelModules: wl
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,vpswitch,grid,mousepoll,compiztoolbox,move,imgpng,regex,wall,gnomecompat,commands,place,snap,resize,animation,workarounds,session,expo,ezoom,staticswitcher,fade,scale]
CompositorRunning: compiz
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480
 edid-base64:
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
Date: Thu Mar 17 21:27:51 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus: bcmwl, 5.100.82.38+bdcom, 2.6.38-6-generic, i686: installed
ExecutablePath: /usr/bin/unity-window-decorator
GraphicsCard:
 ATI Technologies Inc Manhattan [Mobility Radeon HD 5000 Series] [1002:68e0] (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:3969]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
MachineType: LENOVO 20066
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-6-generic root=UUID=6f45fe23-d116-4a59-abe7-5e6a32c3bd28 ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Renderer: Unknown
SegvAnalysis:
 Segfault happened at: 0x80584e9 <event_filter_func+649>: mov 0x224(%edx),%eax
 PC (0x080584e9) ok
 source "0x224(%edx)" (0x00000224) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 event_filter_func ()
 ?? () from /usr/lib/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/libgdk-x11-2.0.so.0
 g_main_context_dispatch () from /lib/libglib-2.0.so.0
Title: unity-window-decorator crashed with SIGSEGV in event_filter_func()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 06/08/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 36CN15WW(V2.01)
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Guam
dmi.board.vendor: LENOVO
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnLENOVO:bvr36CN15WW(V2.01):bd06/08/2010:svnLENOVO:pn20066:pvrIdeaPadZ565:rvnLENOVO:rnGuam:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: 20066
dmi.product.version: IdeaPad Z565
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4-0ubuntu5
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu5

[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 #726101, 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.