compiz crashed with SIGSEGV in _wordcopy_fwd_dest_aligned()

[A. sleeping.li0n]

Description: Ubuntu precise (development branch)
Release: 12.04

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Sun Feb 19 22:09:08 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120125)
ProcCmdline: compiz
ProcEnviron:
 PATH=(custom, no user)
 LANG=ja_JP.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f6e846eab6a: mov (%rsi),%r11
 PC (0x7f6e846eab6a) ok
 source "(%rsi)" (0x15840f88) not located in a known VMA region (needed readable region)!
 destination "%r11" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
 TfpTexture::bindPixmapToTexture(unsigned long, int, int, int) () from /usr/lib/compiz/libopengl.so
Title: compiz crashed with SIGSEGV in TfpTexture::bindPixmapToTexture()
UpgradeStatus: Upgraded to precise on 2012-02-18 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 _wordcopy_fwd_dest_aligned (dstp=4932883888, srcp=360976264, len=34618212) at wordcopy.c:176
 drisw_update_tex_buffer (drawable=<optimized out>, ctx=<optimized out>, res=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:58
 dri_set_tex_buffer2 (pDRICtx=<optimized out>, target=3553, format=8410, dPriv=<optimized out>) at dri_drawable.c:230
 TfpTexture::bindPixmapToTexture (pixmap=69236425, width=<optimized out>, height=32, depth=<optimized out>) at /build/buildd/compiz-0.9.7.0~bzr2995/plugins/opengl/src/texture.cpp:576
 boost::detail::function::function_invoker4<GLTexture::List (*)(unsigned long, int, int, int), GLTexture::List, unsigned long, int, int, int>::invoke (function_ptr=<optimized out>, a0=<optimized out>, a1=<optimized out>, a2=<optimized out>, a3=<optimized out>) at /usr/include/boost/function/function_template.hpp:95