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[Saren Taşçıyan <sarentasciyan@xxxxxxxxxxx>]

** Changed in: xorg-server (Ubuntu)
       Status: Incomplete => New

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https://bugs.launchpad.net/bugs/1535394

Title:
  Xorg crashes at certain wiki pages via firefox

Status in xorg-server package in Ubuntu:
  New

Bug description:
  Hi,

  I am having a weird problem in Ubuntu and I will try to explain when
  it happens. When I open Wikipedia main page or View history on any
  wiki page, sometimes (not always) Xorg (I suppose) freezes (UI becomes
  unresponsive for a while about 10-60 seconds) until it jumps to login
  screen. If I login, I need to start all the application all over
  again. Firefox starts but if I repeat the same process (visiting the
  same web page) Xorg crashes again. The two pages so far this behaviour
  occurs are:

  http://en.wikipedia.org (main page, I can however directly open any article and navigate from there)
  http://imagej.net/index.php?title=ImgLib2_Examples&action=history (history page of a wiki page)

  There are no dialogs after the crash reporting about a crash. I really don't know how to track the problem to find the cause.
  Even though Firefox is chrashing, Xorg should not be affected.

  I am using Ubuntu 14.04 LTS

  3.13.0-74-generic

  X.Org X Server 1.15.1
  Release Date: 2014-04-13
  X Protocol Version 11, Revision 0
  Build Operating System: Linux 3.2.0-76-generic x86_64 Ubuntu
  Current Operating System: Linux lngrad031 3.13.0-74-generic #118-Ubuntu SMP Thu Dec 17 22:52:10 UTC 2015 x86_64
  Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.13.0-74-generic root=UUID=aa4cedea-18e5-4b0f-86ac-3423c2221c78 ro acpi_osi=Linux quiet splash acpi_backlight=vendor vt.handoff=7
  Build Date: 12 February 2015  02:49:29PM
  xorg-server 2:1.15.1-0ubuntu2.7 (For technical support please see http://www.ubuntu.com/support)
  Current version of pixman: 0.30.2
   Before reporting problems, check http://wiki.x.org
   to make sure that you have the latest version.

  unity 7.2.6

  I could only capture a line in x-0.log.old file with only "(EE)". (no
  explanation or whatsoever)

  Please don't hesitate to ask for more information.
  --- 
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroRelease: Ubuntu 14.04
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:5036]
  MachineType: LENOVO 20BX000XMH
  Package: xorg-server (not installed)
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-74-generic root=UUID=aa4cedea-18e5-4b0f-86ac-3423c2221c78 ro acpi_osi=Linux quiet splash acpi_backlight=vendor vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-74.118-generic 3.13.11-ckt30
  Tags:  trusty ubuntu compiz-0.9
  Uname: Linux 3.13.0-74-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 05/21/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JBET49WW (1.14 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BX000XMH
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrJBET49WW(1.14):bd05/21/2015:svnLENOVO:pn20BX000XMH:pvrThinkPadT450s:rvnLENOVO:rn20BX000XMH:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20BX000XMH
  dmi.product.version: ThinkPad T450s
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.5
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.5
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.6
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Mon Jan 18 18:35:47 2016
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4925 
   vendor                                     AUO
  xserver.version: 2:1.15.1-0ubuntu2.7

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