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

[alienfoundery]

On oneiric beta 2, compiz crashes every session during launching or quiting some apps like VLC, Synaptic or update manager...

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: compiz-gnome 1:0.9.6+bzr20110929-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
.tmp.unity.support.test.0:

ApportVersion: 1.23-0ubuntu2
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,resize,place,compiztoolbox,mousepoll,move,wall,gnomecompat,imgpng,grid,snap,vpswitch,regex,session,unitymtgrabhandles,animation,workarounds,fade,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
CrashCounter: 1
Date: Sun Oct 2 18:24:59 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
ExecutablePath: /usr/bin/unity-window-decorator
GraphicsCard:
 Intel Corporation N10 Family Integrated Graphics Controller [8086:a011] (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:83ac]
   Subsystem: ASUSTeK Computer Inc. Device [1043:83ac]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110921.2)
MachineType: ASUSTeK Computer INC. T101MT
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=d2071ea5-1db3-421f-8cb7-0d3f5e1f6345 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x18f9cd <g_slice_alloc+269>: mov (%edi),%edx
 PC (0x0018f9cd) ok
 source "(%edi)" (0xffffffff) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_slice_alloc () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_slice_alloc0 () from /lib/i386-linux-gnu/libglib-2.0.so.0
 gdk_event_new () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
Title: unity-window-decorator crashed with SIGSEGV in g_slice_alloc()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 02/03/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0404
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: T101MT
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0404:bd02/03/2010:svnASUSTeKComputerINC.:pnT101MT:pvrx.x:rvnASUSTeKComputerINC.:rnT101MT:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: T101MT
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu1
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 #741395, 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.