unity-window-decorator crashed with SIGSEGV in g_slice_alloc()

[Alexey Brodkin]

Description: Ubuntu oneiric (development branch)
Release: 11.10

In the middle of ordinary session compiz crashed unexpectedly.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: compiz-gnome 1:0.9.6+bzr20110929-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86 Kernel Module 280.13 Wed Jul 27 16:55:43 PDT 2011
 GCC version: gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
.tmp.unity.support.test.0:

ApportVersion: 1.23-0ubuntu2
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,imgpng,gnomecompat,move,obs,resize,regex,vpswitch,mousepoll,grid,unitymtgrabhandles,snap,animation,place,session,expo,workarounds,wall,fade,ezoom,scale,unityshell]
CompositorRunning: compiz
Date: Fri Sep 30 23:55:13 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
ExecutablePath: /usr/bin/unity-window-decorator
GraphicsCard:
 nVidia Corporation G86 [GeForce 8400M GS] [10de:0427] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:011e]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110901)
JockeyStatus:
 xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use)
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
 kmod:nvidia_173 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
 kmod:nvidia_current - nvidia_current (Proprietary, Disabled, Not in use)
MachineType: Acer Aspire 7720Z
ProcCmdline: /usr/bin/unity-window-decorator
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic-pae root=UUID=1be93c45-744b-4cf0-a7b9-d49c42f3f128 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0xb6fa69cd <g_slice_alloc+269>: mov (%edi),%edx
 PC (0xb6fa69cd) ok
 source "(%edi)" (0xffffffff) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_slice_alloc () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_slice_alloc0 () from /lib/i386-linux-gnu/libglib-2.0.so.0
 gdk_event_new () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
Title: unity-window-decorator crashed with SIGSEGV in g_slice_alloc()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers
XorgConf:
 Section "Device"
  Identifier "Default Device"
  Option "NoLogo" "True"
 EndSection
dmi.bios.date: 09/14/2007
dmi.bios.vendor: Acer
dmi.bios.version: V1.17
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Poyang
dmi.board.vendor: Acer
dmi.board.version: V1.17
dmi.chassis.type: 1
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.17
dmi.modalias: dmi:bvnAcer:bvrV1.17:bd09/14/2007:svnAcer:pnAspire7720Z:pvrV1.17:rvnAcer:rnPoyang:rvrV1.17:cvnAcer:ct1:cvrV1.17:
dmi.product.name: Aspire 7720Z
dmi.product.version: V1.17
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu1
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

[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 #741395, 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.

[Alexey Brodkin (alexey-brodkin)]

Hint: VLC was running and I tried to open play-list. Right at that moment I noticed that play-list decoration was absent and in the next moment compiz crashed.