compiz crashed with SIGSEGV in g_atomic_int_get() - tried to remove icon on unity

[Chris Snyder]

Binary package hint: compiz

After uninstalling gnome-do, I tried to remove the gnome-do icon from the left unity bar... the computer hung then compiz crashed

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.4+bzr20110406-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
NonfreeKernelModules: wl
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
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1440x900
 edid-base64: AP///////wAGr3dDAAAAAAERAQOQIRV4CpC1mVhSjiYeUFQAAAABAQEBAQEBAQEBAQEBAQEBMiqgFlKEDDBAIDMAS88QAAAaMiqgFlKEDDBAIDMAS88QAAAaAAAA/gBIVzY2M4BCMTU0UFc0AAAAAAAAAAAAAAAAAAIBCiAgAHU=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Thu Apr 7 16:17:47 2011
DistUpgraded: Log time: 2011-04-07 13:53:22.881216
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0254]
   Subsystem: Dell Device [1028:0254]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Dell Inc. Studio 1535
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic-pae root=UUID=c495762e-ee06-4337-9171-7c2604d2be59 ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.41-generic-pae 2.6.38.2
Renderer: Unknown
SegvAnalysis:
 Segfault happened at: 0xb71bb40c <g_atomic_int_get+12>: mov (%eax),%eax
 PC (0xb71bb40c) ok
 source "(%eax)" (0x00000010) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_atomic_int_get () from /lib/i386-linux-gnu/libglib-2.0.so.0
 ?? ()
 ?? ()
 ?? ()
Title: compiz crashed with SIGSEGV in g_atomic_int_get()
UpgradeStatus: Upgraded to natty on 2011-04-07 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 07/30/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0M263C
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd07/30/2008:svnDellInc.:pnStudio1535:pvr:rvnDellInc.:rn0M263C:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Studio 1535
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.4+bzr20110406-0ubuntu1
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
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 2:2.14.0-4ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6

[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 #743955, 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.