compiz crashed with SIGSEGV in pthread_mutex_lock()

[Dmitry Shachnev]

Binary package hint: compiz

Compiz crashed when I ran "unity --replace" from classic desktop.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.4+bzr20110415-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
CrashCounter: 1
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1440x900
 edid-base64: AP///////wBMo0c4AAAAAAAQAQOAJRd4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBnyWgQFGEDDBAIDMAb+YQAAAZAAAADwAAAAAAAAAAAHjmAiMAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gBMVE4xNzBYMi1MMDIKAPE=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Sat Apr 16 18:10:16 2011
DistUpgraded: Log time: 2011-04-10 11:49:37.150328
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 dkms.conf: Error! No 'BUILT_MODULE_NAME' directive specified for record #0.
 ndiswrapper, 1.56+r2729, 2.6.38-8-generic, i686: installed (WARNING! Missing some built modules!)
 virtualbox-ose, 4.0.4, 2.6.38-8-generic, i686: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Fujitsu Technology Solutions Device [1734:10c7]
   Subsystem: Fujitsu Technology Solutions Device [1734:10c7]
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
InstallationMedia_: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
MachineType: FUJITSU SIEMENS AMILO Li 1818
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=ru_RU:en
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=2e8fd81a-2a9c-4223-b8cb-19c24f99764e ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Renderer: Unknown
SegvAnalysis:
 Segfault happened at: 0x20233d <pthread_mutex_lock+29>: mov 0xc(%esi),%edi
 PC (0x0020233d) ok
 source "0xc(%esi)" (0x00000011) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
 ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
 Glib::Source::unreference() const () from /usr/lib/libglibmm-2.4.so.1
 PrivateScreen::~PrivateScreen() ()
 PrivateScreen::~PrivateScreen() ()
Title: compiz crashed with SIGSEGV in pthread_mutex_lock()
UpgradeStatus: Upgraded to natty on 2011-04-11 (4 days ago)
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev nopasswdlogin plugdev sambashare tape video
dmi.bios.date: 07/30/2007
dmi.bios.vendor: FUJITSU SIEMENS
dmi.bios.version: 1.14C
dmi.board.name: AMILO Li 1818
dmi.board.vendor: FUJITSU SIEMENS
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU SIEMENS
dmi.modalias: dmi:bvnFUJITSUSIEMENS:bvr1.14C:bd07/30/2007:svnFUJITSUSIEMENS:pnAMILOLi1818:pvr:rvnFUJITSUSIEMENS:rnAMILOLi1818:rvr:cvnFUJITSUSIEMENS:ct10:cvr:
dmi.product.name: AMILO Li 1818
dmi.sys.vendor: FUJITSU SIEMENS
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu1
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

[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 #755127, 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.