Public bug reported:

When I'm browsing online, I unconsciously highlight and deselect random
text on the page.  Sometime when I drag the text briefly X will crash.
The crash consistently occurs at the moment the text-drag starts or
right after.

I've tried to reproduce the bug intentionally but can't, but I
consistently get X crashes every 5 hours or so of surfing online.  I use
Chromium as my browser if it's relevant.

The Xorg.0.log.old has some details about a segfault at the end, I'm
pretty sure that lines up with the crash.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-38.61-generic 3.2.37
Uname: Linux 3.2.0-38-generic x86_64
NonfreeKernelModules: fglrx
.tmp.unity.support.test.0:
 
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
CompizPlugins: 
[core,composite,opengl,decor,gnomecompat,imgpng,regex,compiztoolbox,grid,resize,snap,mousepoll,move,place,vpswitch,animation,unitymtgrabhandles,wall,workarounds,fade,scale,session,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Mon Mar 25 03:34:03 2013
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes,
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI Device [1002:6819] (prog-if 00 [VGA 
controller])
   Subsystem: PC Partner Limited Device [174b:e221]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
JockeyStatus:
 kmod:fglrx_experimental_12 - Experimental AMD binary Xorg driver and kernel 
module (Proprietary, Disabled, Not in use)
 xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Enabled, 
In use)
 xorg:fglrx_experimental_9 - ATI/AMD proprietary FGLRX graphics driver 
(**experimental** beta) (Proprietary, Disabled, Not in use)
 xorg:fglrx_updates - ATI/AMD proprietary FGLRX graphics driver (post-release 
updates) (Proprietary, Disabled, Not in use)
MachineType: System manufacturer System Product Name
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-38-generic 
root=UUID=2d6bbf0d-8617-47af-8e4c-4a783ecfd16f ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/12/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0504
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8Z68-V LE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0504:bd07/12/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.7.12-0ubuntu1
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.39-0ubuntu0.1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-0ubuntu0.4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-0ubuntu0.4
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.12
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20111201+b5534a1-1build3

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 precise running-unity ubuntu

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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1159654

Title:
  Crash when highlight-dragging text

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