compiz crashed with SIGSEGV in sigc::signal_base::impl()

[Stephan]

Binary package hint: compiz

When enabling a new plugin in ccsm, compiz crashes and has to be replaced.

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
NonfreeKernelModules: wl
Architecture: i386
CrashCounter: 1
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1024x600
 edid-base64: AP///////wAGr9IjAAAAAAATAQSQFg14Aitpl1dVlikhT1QAAAABAQEBAQEBAQEBAQEBAQEBsBMAQEFYGSAYiDEA330AAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTAxQVcwMiBWMyAKALg=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Fri Feb 11 22:53:20 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 2.6.38-2-generic, i686: installed
 bcmwl, 5.100.82.38+bdcom, 2.6.38-3-generic, i686: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Subsystem: Lenovo Device [17aa:3908]
   Subsystem: Lenovo Device [17aa:3908]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110210)
MachineType: LENOVO 20040M18
ProcCmdline: compiz --replace
ProcEnviron:
 LANGUAGE=de_AT:de:en_GB:en
 LANG=de_AT.UTF-8
 LC_MESSAGES=de_AT.utf8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-3-generic root=UUID=169a629f-9dd1-4ff1-9cfc-e5d098611791 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x589e3d <_ZNK4sigc11signal_base4implEv+29>: mov 0x4(%edi),%esi
 PC (0x00589e3d) ok
 source "0x4(%edi)" (0x0000007c) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 sigc::signal_base::impl() const () from /usr/lib/libsigc-2.0.so.0
 sigc::signal_base::connect(sigc::slot_base const&) () from /usr/lib/libsigc-2.0.so.0
 UnityScreen::UnityScreen(CompScreen*) () from /usr/lib/compiz/libunityshell.so
 CompPlugin::VTableForScreenAndWindow<UnityScreen, UnityWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libunityshell.so
 CompManager::initPlugin(CompPlugin*) ()
Title: compiz crashed with SIGSEGV in sigc::signal_base::impl()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 03/12/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 24CN22WW
dmi.board.name: Caucasus2
dmi.board.vendor: LENOVO
dmi.board.version: Rev 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Lenovo
dmi.chassis.version: Rev 1.0
dmi.modalias: dmi:bvnLENOVO:bvr24CN22WW:bd03/12/2010:svnLENOVO:pn20040M18:pvrLenovoIdeapadS10-3t:rvnLENOVO:rnCaucasus2:rvrRev1.0:cvnLenovo:ct10:cvrRev1.0:
dmi.product.name: 20040M18
dmi.product.version: Lenovo Ideapad S10-3t
dmi.sys.vendor: LENOVO
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 2:2.14.0-1ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4