compiz crashed with SIGSEGV in g_type_check_instance()

[Pablo Abraham Campis Flores]

It crashed when I disabled "Windows Previews" in ccsm. When it was enabled there were no problems, but when disabled, it crashed

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: compiz-core 1:0.9.7.0~bzr2995-0ubuntu5
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic i686
.tmp.unity.support.test.0:

ApportVersion: 1.93-0ubuntu2
Architecture: i386
CompizPlugins: [core,composite,opengl,compiztoolbox,imgjpeg,decor,resize,obs,imgpng,place,session,snap,grid,move,vpswitch,unitymtgrabhandles,gnomecompat,regex,mousepoll,animation,expo,wall,fade,ezoom,workarounds,scale,unityshell]
CompositorRunning: compiz
CrashCounter: 1
Date: Tue Feb 28 20:05:12 2012
DistUpgraded: Log time: 2012-02-25 16:28:19.270416
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 3.0.0-16-generic, i686: installed
 bcmwl, 5.100.82.38+bdcom, 3.2.0-17-generic, i686: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation Mobile 945GME Express Integrated Graphics Controller [8086:27ae] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:022f]
   Subsystem: Acer Incorporated [ALI] Device [1025:022f]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MachineType: eMachines eM250
ProcCmdline: compiz
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic root=UUID=f7c222d9-0a67-4d6f-8640-c998b32f8128 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0xf0be11 <g_type_check_instance+33>: mov (%eax),%edx
 PC (0x00f0be11) ok
 source "(%eax)" (0x00000958) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_type_check_instance () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libbamf3.so.0
 bamf_marshal_VOID__STRING_STRING () from /usr/lib/i386-linux-gnu/libbamf3.so.0
Title: compiz crashed with SIGSEGV in g_type_check_instance()
UpgradeStatus: Upgraded to precise on 2012-02-26 (2 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 11/28/2009
dmi.bios.vendor: Acer
dmi.bios.version: V1.25
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: eM250
dmi.board.vendor: Acer
dmi.board.version: V1.25
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.25
dmi.modalias: dmi:bvnAcer:bvrV1.25:bd11/28/2009:svneMachines:pneM250:pvrV1.25:rvnAcer:rneM250:rvrV1.25:cvnAcer:ct10:cvrV1.25:
dmi.product.name: eM250
dmi.product.version: V1.25
dmi.sys.vendor: eMachines
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
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

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #930575, 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.