compiz crashed with SIGSEGV in __strlen_sse2_bsf()

I was using chromium and suddendly compiz crashed.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0-3.4-generic-pae 3.0.0-rc5
Uname: Linux 3.0-3-generic-pae i686
Architecture: i386
CheckboxSubmission: 4afb8c68a8fa5938a80183a271a939ea
CheckboxSystem: c460f5739f7c8446c3d18c3e0e7c5745
CrashCounter: 1
Date: Fri Jul 22 09:50:15 2011
ExecutablePath: /usr/bin/compiz
ProcCmdline: compiz
ProcEnviron:
 LANG=es_CL.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb6ed1666 <__strlen_sse2_bsf+22>: movdqu (%edi),%xmm1
 PC (0xb6ed1666) ok
 source "(%edi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%xmm1" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 __strlen_sse2_bsf () at ../sysdeps/i386/i686/multiarch/strlen-sse2-bsf.S:52
 SimpleLauncherIcon::SetIconName(char const*) () from /usr/lib/compiz/libunityshell.so
 BamfLauncherIcon::BamfLauncherIcon(Launcher*, _BamfApplication*, CompScreen*) () from /usr/lib/compiz/libunityshell.so
 LauncherController::OnViewOpened(_BamfMatcher*, _BamfView*, void*) () from /usr/lib/compiz/libunityshell.so
 g_cclosure_marshal_VOID__OBJECT (closure=0x8c1f4d8, return_value=0x0, n_param_values=2, param_values=0x88ac8c8, invocation_hint=0xbf8079a0, marshal_data=0x0) at /build/buildd/glib2.0-2.29.10/./gobject/gmarshal.c:644
Title: compiz crashed with SIGSEGV in __strlen_sse2_bsf()
UpgradeStatus: Upgraded to oneiric on 2011-07-06 (15 days ago)
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