compiz crashed with SIGSEGV in CompWindow::id()

[Didier Roche-Tolomelli]

Binary package hint: compiz

Compiz hangs 2/3 times a day, without anymore UI refresh. I sent a SIGSEV to get the backtrace.

The only way to get back something working is to kill compiz and to restart it again (compiz --replace doesn't work as the first compiz process doesn't exit)

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.2.1+glibmainloop2-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.37-8.21-generic 2.6.37-rc4
Uname: Linux 2.6.37-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
CompizPlugins: No value set for `/apps/compiz/general/allscreens/options/active_plugins'
Date: Fri Dec 10 15:17:38 2010
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100918)
MachineType: Dell Inc. MP061
PciDisplay: 01:00.0 VGA compatible controller [0300]: nVidia Corporation G71 [GeForce Go 7900 GS] [10de:0298] (rev a1) (prog-if 00 [VGA controller])
ProcCmdline: compiz
ProcEnviron:
 LANG=fr_FR.utf8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-8-generic root=UUID=4b292599-da9a-4cb5-908f-a911be09c61a ro quiet splash nomodeset video=uvesafb:mode_option=1280x1024-24,mtrr=3,scroll=ywrap
RelatedPackageVersions:
 xserver-xorg 1:7.5+6ubuntu3b1
 libgl1-mesa-glx 7.9+repack-1ubuntu3
 libdrm2 2.4.22-2ubuntu1
 xserver-xorg-video-intel 2:2.13.901-2ubuntu1
 xserver-xorg-video-ati 1:6.13.2-1ubuntu2
SegvAnalysis:
 Segfault happened at: 0x807e747 <_ZN10CompWindow2idEv+7>: mov 0x2c(%eax),%eax
 PC (0x0807e747) ok
 source "0x2c(%eax)" (0x6400002c) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
Stacktrace:
 #0 0x0807e747 in CompWindow::id() ()
 No symbol table info available.
 Cannot access memory at address 0xbf9ca94c
StacktraceTop: CompWindow::id() ()
Title: compiz crashed with SIGSEGV in CompWindow::id()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 04/02/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0YD479
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/02/2007:svnDellInc.:pnMP061:pvr:rvnDellInc.:rn0YD479:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: MP061
dmi.sys.vendor: Dell Inc.
system: distro = Ubuntu, architecture = i686, kernel = 2.6.37-8-generic

[Apport retracing service (apport)]

Stacktrace:
 #0 0x0807e747 in CompWindow::id (this=Cannot access memory at address 0xbf9ca950
 )
     at /build/buildd/compiz-0.9.2.1+glibmainloop2/src/window.cpp:662
 No locals.
 Cannot access memory at address 0xbf9ca94c
StacktraceTop: CompWindow::id (this=Cannot access memory at address 0xbf9ca950