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[Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>]

http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/current/
should prevent the lockup

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https://bugs.launchpad.net/bugs/1353926

Title:
  Xorg on haswell freezes on high load, restart attempts fail

Status in “xserver-xorg-video-intel” package in Ubuntu:
  Confirmed

Bug description:
  Mouse cursor was still updated during the freeze. The freeze occurred
  during a kernel build with 8 threads and an opengl game running on a
  different desktop but continuously rendering and claiming the cpu.

  ProblemType: Crash
  DistroRelease: Ubuntu 14.10
  Package: xserver-xorg-core 2:1.15.1-0ubuntu9
  ProcVersionSignature: Ubuntu 3.16.0-6.11-generic 3.16.0-rc7
  Uname: Linux 3.16.0-6-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.5-0ubuntu3
  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
  Date: Thu Aug  7 10:39:47 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/Xorg
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Crystal Well Integrated Graphics Controller [8086:0d26] (rev 08) (prog-if 00 [VGA controller])
     Subsystem: CLEVO/KAPOK Computer Device [1558:7410]
  InstallationDate: Installed on 2013-11-08 (271 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131108)
  MachineType: Notebook W740SU
  ProcCmdline: /usr/bin/X -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-6-generic root=UUID=1da34068-54f6-4bc8-a0cb-0ee9f73f7577 ro quiet splash vt.handoff=7
  Signal: 6
  SourcePackage: xorg-server
  StacktraceTop:
   ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
   xf86DeleteScreen ()
   InitOutput ()
   ?? ()
   __libc_start_main (main=0x7f27717d0dd0, argc=11, argv=0x7fff579c5398, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff579c5388) at libc-start.c:287
  SystemImageInfo: Error: [Errno 2] No such file or directory: 'system-image-cli'
  Title: Xorg crashed with SIGABRT in xf86DeleteScreen()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 08/13/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W740SU
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd08/13/2013:svnNotebook:pnW740SU:pvrNotApplicable:rvnNotebook:rnW740SU:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
  dmi.product.name: W740SU
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook
  version.compiz: compiz 1:0.9.11+14.10.20140707-0ubuntu1b1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.54-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.3-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.3-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu9
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Thu Aug  7 10:58:47 2014
  xserver.configfile: default
  xserver.errors:
   intel: Failed to load module "dri3" (module does not exist, 0)
   intel: Failed to load module "present" (module does not exist, 0)
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4413 
   vendor                                     AUO
  xserver.version: 2:1.15.1-0ubuntu9

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