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[Timo Aaltonen <tjaalton@xxxxxxxxxx>]

*** This bug is a duplicate of bug 1507167 ***
    https://bugs.launchpad.net/bugs/1507167

** This bug is no longer a duplicate of bug 1500144
   Xorg crashed with SIGSEGV
** This bug has been marked a duplicate of bug 1507167
   Xorg crashed with SIGABRT in __sna_dri2_copy_region()

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https://bugs.launchpad.net/bugs/1500145

Title:
  Xorg crashed with SIGSEGV

Status in xorg-server package in Ubuntu:
  New

Bug description:
  Crashes might be related to full screen video. Crashes when exiting
  fullscreen or switching windows.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: xserver-xorg-core 2:1.17.2-1ubuntu7
  ProcVersionSignature: Ubuntu 4.2.0-11.13-generic 4.2.1
  Uname: Linux 4.2.0-11-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  BootLog:
   Scanning for Btrfs filesystems
   fsck from util-linux 2.26.2
   tito-root: clean, 2076967/15114240 files, 50801586/60448000 blocks
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Sat Sep 26 23:54:31 2015
  DistUpgraded: 2015-07-22 01:05:44,405 DEBUG enabling apt cron job
  DistroCodename: wily
  DistroVariant: ubuntu
  DkmsStatus:
   acpi-call, 1.1.0, 4.2.0-11-generic, x86_64: installed
   virtualbox, 5.0.4, 4.2.0-11-generic, x86_64: installed
  ExecutablePath: /usr/bin/Xorg
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:060a]
  InstallationDate: Installed on 2014-08-08 (414 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. XPS13 9333
  ProcCmdline: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-11-generic root=UUID=8a50e235-2691-4a4a-b587-3bb79f18c59c ro splash quiet i915.enable_psr=1 vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x7fe56794acf9:	cmpb   $0x48,(%rax)
   PC (0x7fe56794acf9) ok
   source "$0x48" ok
   destination "(%rax)" (0x000023f2) not located in a known VMA region (needed writable region)!
  SegvReason: writing NULL VMA
  Signal: 11
  SourcePackage: xorg-server
  StacktraceTop:
   ?? ()
   ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
   ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
   ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
   ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
  Title: Xorg crashed with SIGSEGV
  UpgradeStatus: Upgraded to wily on 2015-07-22 (66 days ago)
  UserGroups:
   
  dmi.bios.date: 03/27/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0D13CR
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd03/27/2015:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0D13CR:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.12.2+15.10.20150908-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.0-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.0-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Sat Sep 26 23:54:36 2015
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4933 
   vendor                                     CMN
  xserver.version: 2:1.17.2-1ubuntu7

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