compiz crashed with SIGSEGV in __strstr_ia32()

[Blair Chasteen]

This error occured immediately after reboot from upgrading to 12.10 Quantal.
-My desktop appeared with my resolution different from what it normally is.
-Last.fm player started up and started streaming music automatically like I have it set to do.
-Unity Panel never loaded and crash report appeared

After my browser loaded to submit this report I did the following in a terminal window I loaded with ctrl-alt T

darkrain@rain:~/Desktop$ DISPLAY=$DISPLAY:0
darkrain@rain:~/Desktop$ export DISPLAY
darkrain@rain:~/Desktop$ unity --reset
compiz (core) - Info: Loading plugin: core
compiz (core) - Info: Starting plugin: core
unity-panel-service: no process found
compiz (core) - Fatal: Couldn't open display :0:0
compiz (core) - Info: Stopping plugin: core
compiz (core) - Info: Unloading plugin: core
darkrain@rain:~/Desktop$ gconftool-2 --set --type=bool /apps/compiz-1/plugins/unityshell/screen0/options/shortcut_overlay TRUE
darkrain@rain:~/Desktop$ gconftool-2 -recursive-unset /apps/compiz-1
Error while parsing options: Unknown option -recursive-unset.
Run 'gconftool-2 --help' to see a full list of available command line options.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: compiz-core 1:0.9.8+bzr3249-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1
Uname: Linux 3.5.0-10-generic i686
NonfreeKernelModules: fglrx
ApportVersion: 2.4-0ubuntu8
Architecture: i386
CheckboxSubmission: a8e76548fbc60a2f5426ec4a1cb70fc9
CheckboxSystem: c541d13ea4f205f2fd751f76ed21105b
Date: Thu Aug 16 05:43:53 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: Compiz
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb7457946 <__strstr_ia32+22>: movzbl 0x0(%ebp),%eax
 PC (0xb7457946) ok
 source "0x0(%ebp)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 __strstr_ia32 (haystack_start=0x0, needle_start=0xb60e032f "GLX_SGIX_fbconfig") at ../string/strstr.c:63
 GLScreen::GLScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
 PluginClassHandler<GLScreen, CompScreen, 4>::get(CompScreen*) () from /usr/lib/compiz/libopengl.so
 CompPlugin::VTableForScreenAndWindow<GLScreen, GLWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
 CompManager::initPlugin(CompPlugin*) () from /usr/lib/libcompiz_core.so.ABI-20120526
Title: compiz crashed with SIGSEGV in __strstr_ia32()
UpgradeStatus: Upgraded to quantal on 2012-08-16 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev root sambashare vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 __strstr_ia32 (haystack_start=0x0, needle_start=0xb60e032f "GLX_SGIX_fbconfig") at ../string/strstr.c:63
 strstr (__needle=0xb60e032f "GLX_SGIX_fbconfig", __haystack=0x0) at /usr/include/string.h:337
 GLScreen::GLScreen (this=0x95d3820, s=0x956b458) at /build/buildd/compiz-0.9.8+bzr3249/plugins/opengl/src/screen.cpp:380
 getInstance (base=<optimized out>) at /build/buildd/compiz-0.9.8+bzr3249/plugins/../src/pluginclasshandler/include/core/pluginclasshandler.h:225
 PluginClassHandler<GLScreen, CompScreen, 4>::get (base=0x956b458) at /build/buildd/compiz-0.9.8+bzr3249/plugins/../src/pluginclasshandler/include/core/pluginclasshandler.h:269

[Blair Chasteen (darkstormyrain)]

logged out of my session and the same happened so I tried to manually start unity

darkrain@rain:~$ unity
compiz (core) - Info: Loading plugin: core
compiz (core) - Info: Starting plugin: core
unity-panel-service: no process found
compiz (core) - Warn: Attempted to restack relative to 0x5400093 which is not a child of the root window or a window compiz owns
compiz (core) - Warn: Attempted to restack relative to 0x5400096 which is not a child of the root window or a window compiz owns
compiz (core) - Info: Loading plugin: ccp
compiz (core) - Info: Starting plugin: ccp
Backend : gconf
Integration : true
Profile : unity
Adding plugins
Initializing core options...done
compiz (core) - Info: Loading plugin: composite
compiz (core) - Info: Starting plugin: composite
Initializing composite options...done
compiz (core) - Info: Loading plugin: opengl
compiz (core) - Info: Starting plugin: opengl
Segmentation fault (core dumped)
darkrain@rain:~$

[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 944653, 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.