compiz crashed with SIGSEGV in SimpleLauncherIcon::SetIconName()

[David Gonzalez Gamboa]

I don`t know what`s the problem compiz crash and restart

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-6.7-generic 3.0.0-rc7
Uname: Linux 3.0.0-6-generic x86_64
Architecture: amd64
Date: Sat Jul 23 13:12:35 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=es_MX:es
 LANG=es_MX.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f79ee8127bf: pcmpeqb (%rdi),%xmm1
 PC (0x7f79ee8127bf) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%xmm1" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 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_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: compiz crashed with SIGSEGV in SimpleLauncherIcon::SetIconName()
UpgradeStatus: Upgraded to oneiric on 2011-07-23 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __strlen_sse42 () at ../sysdeps/x86_64/multiarch/strlen-sse4.S:32
 length (this=0x7f79cc1cffc0, name=0x0) at /usr/include/c++/4.6/bits/char_traits.h:261
 assign (this=0x7f79cc1cffc0, name=0x0) at /usr/include/c++/4.6/bits/basic_string.h:1121
 operator= (this=0x7f79cc1cffc0, name=0x0) at /usr/include/c++/4.6/bits/basic_string.h:550
 SimpleLauncherIcon::SetIconName (this=0x7f79cc1cffc0, name=0x0) at /build/buildd/unity-4.4.0/plugins/unityshell/src/SimpleLauncherIcon.cpp:99