*** This bug is a duplicate of bug 1056593 ***
    https://bugs.launchpad.net/bugs/1056593

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1056593, 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.

** Attachment removed: "CoreDump.gz"
   
https://bugs.launchpad.net/bugs/1131017/+attachment/3539363/+files/CoreDump.gz

** Attachment removed: "Disassembly.txt"
   
https://bugs.launchpad.net/bugs/1131017/+attachment/3539365/+files/Disassembly.txt

** Attachment removed: "ProcMaps.txt"
   
https://bugs.launchpad.net/bugs/1131017/+attachment/3539376/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   
https://bugs.launchpad.net/bugs/1131017/+attachment/3539378/+files/ProcStatus.txt

** Attachment removed: "Registers.txt"
   
https://bugs.launchpad.net/bugs/1131017/+attachment/3539379/+files/Registers.txt

** Attachment removed: "Stacktrace.txt"
   
https://bugs.launchpad.net/bugs/1131017/+attachment/3539380/+files/Stacktrace.txt

** Attachment removed: "ThreadStacktrace.txt"
   
https://bugs.launchpad.net/bugs/1131017/+attachment/3539381/+files/ThreadStacktrace.txt

** This bug has been marked a duplicate of private bug 1056593

** Information type changed from Private to Public

** Tags removed: need-i386-retrace

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1131017

Title:
  Xorg crashed with SIGSEGV in _Unwind_Backtrace()

Status in “xorg-server” package in Ubuntu:
  New

Bug description:
  Was sitting idle. Not sure what happened.

  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: xserver-xorg-core 2:1.13.2-0ubuntu2
  ProcVersionSignature: Ubuntu 3.8.0-6.13-generic 3.8.0-rc7
  Uname: Linux 3.8.0-6-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.8-0ubuntu4
  Architecture: i386
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDmesg: [   16.005342] init: plymouth-stop pre-start process (1407) 
terminated with status 1
  Date: Wed Feb 20 20:25:56 2013
  DistUpgraded: Fresh install
  DistroCodename: raring
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/Xorg
  GraphicsCard:
   Advanced Micro Devices [AMD] nee ATI RV350 AR [Radeon 9600] [1002:4152] 
(prog-if 00 [VGA controller])
     Subsystem: Advanced Micro Devices [AMD] nee ATI Radeon 9600XT [1002:0002]
     Subsystem: Advanced Micro Devices [AMD] nee ATI Radeon 9600XT (Secondary) 
[1002:0003]
  InstallationDate: Installed on 2013-02-08 (12 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130206)
  MarkForUpload: True
  ProcCmdline: /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp 
vt7 -novtswitch -background none
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-6-generic 
root=UUID=139511c9-acca-47e0-a999-89ef940da1c9 ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0xb6fff2c5:    cmpw   $0xb858,(%edx)
   PC (0xb6fff2c5) ok
   source "$0xb858" ok
   destination "(%edx)" (0x000285c0) not located in a known VMA region (needed 
writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: xorg-server
  StacktraceTop:
   ?? () from /lib/i386-linux-gnu/libgcc_s.so.1
   _Unwind_Backtrace () from /lib/i386-linux-gnu/libgcc_s.so.1
   backtrace () from /lib/i386-linux-gnu/libc.so.6
   xorg_backtrace ()
   mieqEnqueue ()
  Title: Xorg crashed with SIGSEGV in _Unwind_Backtrace()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 02/13/2005
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: RL86510A.86A.0089.P21.0502132202
  dmi.board.name: D865PERL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAC27646-212
  dmi.chassis.type: 2
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrRL86510A.86A.0089.P21.0502132202:bd02/13/2005:svn:pn:pvr:rvnIntelCorporation:rnD865PERL:rvrAAC27646-212:cvn:ct2:cvr:
  version.compiz: compiz 1:0.9.9~daily13.02.08-0ubuntu1
  version.libdrm2: libdrm2 2.4.42-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.2-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.2-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.6-0ubuntu2
  xserver.bootTime: Wed Feb 20 20:31:36 2013
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Sleep Button         KEYBOARD, id 7
   input        Logitech USB-PS/2 Optical Mouse MOUSE, id 8
   input        UVC Camera (046d:0824) KEYBOARD, id 9
   input        AT Translated Set 2 keyboard KEYBOARD, id 10
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.13.2-0ubuntu2
  xserver.video_driver: radeon

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