compiz crashed with SIGSEGV in g_closure_invoke()

Binary package hint: compiz

.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.4git20110322-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,gnomecompat,place,resize,mousepoll,wall,move,grid,imgpng,vpswitch,regex,session,animation,workarounds,thumbnail,wobbly,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
CrashCounter: 1
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
Date: Fri Apr 1 01:20:27 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 ATI Technologies Inc RV515 [Radeon X1300] [1002:7146] (prog-if 00 [VGA controller])
   Subsystem: ATI Technologies Inc Device [1002:0470]
   Subsystem: ATI Technologies Inc Device [1002:0471]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110322.1)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110322.1)
MachineType: LENOVO 9686A12
ProcCmdline: compiz --replace
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=3a86631d-d832-4ee5-98bb-8aebaf1aa14d ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-7.39-generic 2.6.38
Renderer: Unknown
SegvAnalysis:
 Segfault happened at: 0x7f496fae1848 <g_closure_invoke+392>: mov (%rax),%rdi
 PC (0x7f496fae1848) ok
 source "(%rax)" (0x2f73656e00746c85) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
Title: compiz crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/26/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 2UKT46AUS
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: LENOVO
dmi.board.vendor: LENOVO
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.chassis.vendor: LENOVO
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnLENOVO:bvr2UKT46AUS:bd12/26/2007:svnLENOVO:pn9686A12:pvrThinkCentrexxx:rvnLENOVO:rnLENOVO:rvr1.0:cvnLENOVO:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: 9686A12
dmi.product.version: ThinkCentre xxx
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4git20110322-0ubuntu5
version.libdrm2: libdrm2 2.4.23-1ubuntu5
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6