*** 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/1148301/+attachment/3559477/+files/CoreDump.gz

** Attachment removed: "Disassembly.txt"
   
https://bugs.launchpad.net/bugs/1148301/+attachment/3559480/+files/Disassembly.txt

** Attachment removed: "ProcMaps.txt"
   
https://bugs.launchpad.net/bugs/1148301/+attachment/3559491/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   
https://bugs.launchpad.net/bugs/1148301/+attachment/3559493/+files/ProcStatus.txt

** Attachment removed: "Registers.txt"
   
https://bugs.launchpad.net/bugs/1148301/+attachment/3559494/+files/Registers.txt

** Attachment removed: "Stacktrace.txt"
   
https://bugs.launchpad.net/bugs/1148301/+attachment/3559495/+files/Stacktrace.txt

** Attachment removed: "ThreadStacktrace.txt"
   
https://bugs.launchpad.net/bugs/1148301/+attachment/3559496/+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
Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1148301

Title:
  Xorg crashed with SIGSEGV in _Unwind_Backtrace()

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

Bug description:
  Running current 13.04 build

  xorg:
    Installed: 1:7.7+1ubuntu4
    Candidate: 1:7.7+1ubuntu4
    Version table:
   *** 1:7.7+1ubuntu4 0
          500 http://us.archive.ubuntu.com/ubuntu/ raring/main i386 Packages
          100 /var/lib/dpkg/status

  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: xserver-xorg-core 2:1.13.2-0ubuntu2
  ProcVersionSignature: Ubuntu 3.8.0-10.19-generic 3.8.2
  Uname: Linux 3.8.0-10-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.9-0ubuntu2
  Architecture: i386
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CrashCounter: 1
  Date: Tue Mar  5 21:11:47 2013
  DistUpgraded: Fresh install
  DistroCodename: raring
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/Xorg
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Advanced Micro Devices [AMD] nee ATI RV370 [Mobility Radeon X300] 
[1002:5460] (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:2002]
  InstallationDate: Installed on 2013-02-17 (16 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130211)
  MachineType: Dell Inc. Inspiron 9300
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdline: /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp 
vt7 -novtswitch -background none
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-10-generic 
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0xb70062c5:    cmpw   $0xb858,(%edx)
   PC (0xb70062c5) ok
   source "$0xb858" ok
   destination "(%edx)" (0x00135b00) 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: 02/23/2005
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0C5668
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA02:bd02/23/2005:svnDellInc.:pnInspiron9300:pvr:rvnDellInc.:rn0C5668:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 9300
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.9~daily13.03.01-0ubuntu1
  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 2:2.21.3-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.6-0ubuntu3
  xserver.bootTime: Tue Mar  5 14:44:31 2013
  xserver.configfile: default
  xserver.errors:
   [mi] EQ overflowing.  Additional events will be discarded until existing 
events are processed.
   
   Backtrace:
   
   Backtrace:
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs: Output                                   DVI-0            
LVDS         S-video           VGA-0
  xserver.version: 2:1.13.2-0ubuntu2
  xserver.video_driver: radeon

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