compiz crashed with SIGSEGV in _wordcopy_fwd_aligned()

[Till Kamppeter]

Suddenly the desktop was unresponsive and some seconds later disappeared and reappeared. Then the crash report popped up.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: unity 6.2.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-13.13-generic 3.5.3
Uname: Linux 3.5.0-13-generic x86_64
ApportVersion: 2.5.1-0ubuntu3
Architecture: amd64
Date: Wed Aug 29 10:54:23 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: compiz
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f0a1d7236c5: mov (%rsi),%rax
 PC (0x7f0a1d7236c5) ok
 source "(%rsi)" (0x323a28d0) not located in a known VMA region (needed readable region)!
 destination "%rax" 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::bindTexImage(unsigned long const&) () from /usr/lib/compiz/libopengl.so
Title: compiz crashed with SIGSEGV in TfpTexture::bindTexImage()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 _wordcopy_fwd_aligned (dstp=5259628944, srcp=842672336, len=15249016) at wordcopy.c:80
 memmove (__len=121992128, __src=<optimized out>, __dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:58
 drisw_update_tex_buffer (drawable=<optimized out>, ctx=<optimized out>, res=<optimized out>) at drisw.c:272
 dri_set_tex_buffer2 (pDRICtx=<optimized out>, target=3553, format=8410, dPriv=<optimized out>) at dri_drawable.c:234
 TfpTexture::bindTexImage (this=this@entry=0x8343110, glxPixmap=@0x8343140: 14685282) at /build/buildd/compiz-0.9.8+bzr3319/plugins/opengl/src/texture.cpp:450

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 927168, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.