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

[rahul]

Binary package hint: compiz

This bug was occur when I am working with firefox

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-gnome 1:0.9.4git20110322-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
Architecture: amd64
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
CurrentDmesg:
 [ 21.358229] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 [ 31.440005] eth0: no IPv6 routers present
 [ 37.684909] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
 [ 1324.955983] unity-window-de[1613]: segfault at fffffffff80116c0 ip 00007ff806e504ce sp 00007ffff1efabc0 error 4 in libgdk-x11-2.0.so.0.2400.3[7ff806e0f000+ae000]
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.VGA.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1440x900 1280x1024 1280x1024 1440x900 1280x960 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400
 edid-base64: AP///////wBMLdADOTFBSCASAQMOKRp4KtxVo1lIniQRUFS/74CVAJUPgYCBQHFPAQEBAQEBmimg0FGEIjBQmDYAmgERAAAcAAAA/QA4Sx5RDgAKICAgICAgAAAA/ABTeW5jTWFzdGVyCiAgAAAA/wBIOUZRODE1NTc4CiAgAMo=
Date: Fri Apr 1 14:38:57 2011
DistUpgraded: Log time: 2011-04-01 11:40:07.407299
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus: ipheth, 1.0+git20100207: added
ExecutablePath: /usr/bin/unity-window-decorator
GraphicsCard:
 Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e22] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0439]
   Subsystem: Dell Device [1028:0439]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Dell Inc. Inspiron 560s
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=25ab92a4-0990-4336-a172-f6542c933100 ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-7.39-generic 2.6.38
Renderer: Unknown
SegvAnalysis:
 Segfault happened at: 0x7ff806e504ce <IA__gdk_window_get_events+14>: mov (%rbx),%rdx
 PC (0x7ff806e504ce) ok
 source "(%rbx)" (0xfffffffff80116c0) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 IA__gdk_window_get_events (window=0xfffffffff80116c0) at /build/buildd/gtk+2.0-2.24.3/gdk/gdkwindow.c:7348
 event_filter_func ()
 gdk_event_apply_filters (display=0x88e000, event=0x97cc80, xevent=0x7ffff1efae10, return_exposes=0) at /build/buildd/gtk+2.0-2.24.3/gdk/x11/gdkevents-x11.c:356
 gdk_event_translate (display=0x88e000, event=0x97cc80, xevent=0x7ffff1efae10, return_exposes=0) at /build/buildd/gtk+2.0-2.24.3/gdk/x11/gdkevents-x11.c:927
 _gdk_events_queue (display=0x88e000) at /build/buildd/gtk+2.0-2.24.3/gdk/x11/gdkevents-x11.c:2310
Title: unity-window-decorator crashed with SIGSEGV in IA__gdk_window_get_events()
UpgradeStatus: Upgraded to natty on 2011-04-01 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 01/25/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: 0K83V0
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvrA01:bd01/25/2010:svnDellInc.:pnInspiron560s:pvr00:rvnDellInc.:rn0K83V0:rvrA00:cvnDellInc.:ct3:cvrNotSpecified:
dmi.product.name: Inspiron 560s
dmi.product.version: 00
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.4git20110322-0ubuntu5
version.libdrm2: libdrm2 2.4.23-1ubuntu5
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu4
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 #725284, 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.