compiz crashed with SIGSEGV in __pthread_mutex_lock()

[pschonmann]

Binary package hint: compiz

Just started with autologin

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.2.1+glibmainloop3-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.37-10.24-generic 2.6.37-rc6
Uname: Linux 2.6.37-10-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,vpswitch,place,move,gnomecompat,session,mousepoll,commands,regex,resize,wall,animation,fade,expo,scale,ezoom,staticswitcher]
CrashCounter: 1
Date: Tue Dec 21 07:43:23 2010
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: LENOVO 7661CH8
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
PciDisplay: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 0c) (prog-if 00 [VGA controller])
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=cs_CZ:cs:en_GB:en
 LANG=cs_CZ.UTF-8
 LC_MESSAGES=cs_CZ.utf8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-10-generic root=UUID=a3d37e1f-bbf7-4766-b8cb-22b445b6e7e0 ro vt.handoff=7 quiet splash
RelatedPackageVersions:
 xserver-xorg 1:7.5+6ubuntu3b1
 libgl1-mesa-glx 7.9+repack-1ubuntu3
 libdrm2 2.4.22-2ubuntu1
 xserver-xorg-video-intel 2:2.13.901-2ubuntu2
 xserver-xorg-video-ati 1:6.13.2-1ubuntu2
SegvAnalysis:
 Segfault happened at: 0x7f446126b634 <__pthread_mutex_lock+4>: mov 0x10(%rdi),%esi
 PC (0x7f446126b634) ok
 source "0x10(%rdi)" (0x0000001f) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 __pthread_mutex_lock (mutex=0xf) at pthread_mutex_lock.c:50
 g_source_unref_internal (source=0x109dd90, context=0x7, have_lock=0) at /build/buildd/glib2.0-2.27.4/glib/gmain.c:1667
 PrivateScreen::~PrivateScreen() ()
 PrivateScreen::~PrivateScreen() ()
 CompScreen::~CompScreen() ()
Title: compiz crashed with SIGSEGV in __pthread_mutex_lock()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XorgConf: Error: [Errno 2] Adresář nebo soubor neexistuje: '/etc/X11/xorg.conf'
XsessionErrors:
 (nautilus:1429): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (apport-gtk:1723): Gtk-WARNING **: /build/buildd/gtk+3.0-2.91.6/gtk/gtktreestore.c:800: Unable to convert from PyObject to gchararray
dmi.bios.date: 04/08/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 7LETC7WW (2.27 )
dmi.board.name: 7661CH8
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: BB70301820
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7LETC7WW(2.27):bd04/08/2010:svnLENOVO:pn7661CH8:pvrThinkPadT61:rvnLENOVO:rn7661CH8:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7661CH8
dmi.product.version: ThinkPad T61
dmi.sys.vendor: LENOVO
glxinfo: Error: [Errno 2] Adresář nebo soubor neexistuje
system: distro = Ubuntu, architecture = x86_64, kernel = 2.6.37-10-generic

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #684445, so 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. Please continue to report any other bugs you may find.