compiz crashed with SIGSEGV in pthread_mutex_lock()

Binary package hint: compiz

Logged in with gnome session. Theme seemed to have changed since last gnome session and updates. Ran "compiz --replace". Got shown this error.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.2.1+glibmainloop4-0ubuntu11
ProcVersionSignature: Ubuntu 2.6.38-3.30-generic 2.6.38-rc4
Uname: Linux 2.6.38-3-generic i686
Architecture: i386
CrashCounter: 1
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1024x600 1024x600
 edid-base64: AP///////wAiZOkDpvYEABUUAQOAFg14CoYmlFdRkCchT1QAAAABAQEBAQEBAQEBAQEBAQEBlBEAsEBYGSA1I0UA3IEAAAAZFhQA2EBYJiBdIxUE3IEAAAAAAAAA/gAAAAAAAAAAAAAAAAAAAAAA/gAAAAAAAAAAAAEAAAAAACM=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Sat Feb 12 23:59:12 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Subsystem: ASUSTeK Computer Inc. Device [1043:8340]
   Subsystem: ASUSTeK Computer Inc. Device [1043:8340]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110202.1)
MachineType: ASUSTeK Computer INC. 1001HA
ProcCmdline: /usr/bin/compiz
ProcEnviron:
 LANGUAGE=en_NZ:en
 LANG=en_NZ.UTF-8
 LC_MESSAGES=en_NZ.utf8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-3-generic root=UUID=bf3c3b78-81dd-407e-8532-98d4b3f72d87 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x8af33d <pthread_mutex_lock+29>: mov 0xc(%esi),%edi
 PC (0x008af33d) ok
 source "0xc(%esi)" (0x00000020) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 pthread_mutex_lock () from /lib/libpthread.so.0
 ?? () from /lib/libglib-2.0.so.0
 Glib::Source::unreference() const () from /usr/lib/libglibmm-2.4.so.1
 PrivateScreen::~PrivateScreen() ()
 PrivateScreen::~PrivateScreen() ()
Title: compiz crashed with SIGSEGV in pthread_mutex_lock()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 02/26/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1401
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1005HA
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.:bvr1401:bd02/26/2010:svnASUSTeKComputerINC.:pn1001HA:pvrx.x:rvnASUSTeKComputerINC.:rn1005HA:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: 1001HA
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.
version.compiz: compiz 1:0.9.2.1+glibmainloop4-0ubuntu11
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu4
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4