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[Launchpad Bug Tracker <1450581@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1450581

Title:
  Hardware accel causes X segfault with SNA renderer

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

Bug description:
  Release: Ubuntu 15.04 (vivid)
  Package Version: 2:2.99.917-1~exp1ubuntu2build1

  I'm experiencing a consistently reproducable segfault when attempting
  to use hardware acceleration. I've installed xserver-xorg-core-dbg and
  xserver-xorg-video-intel-dbg and attached the gdb log file.
  Additionally, here is the backtrace from the X log:

  Backtrace from /var/log/Xorg.0.log.old:

  [180619.415] (EE) Backtrace:
  [180619.415] (EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x7f27d5295556]
  [180619.415] (EE) 1: /usr/bin/X (0x7f27d50e2000+0x1b7749) [0x7f27d5299749]
  [180619.415] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f27d2da8000+0x352f0) [0x7f27d2ddd2f0]
  [180619.415] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f27ccf99000+0x6e544) [0x7f27cd007544]
  [180619.415] (EE) 4: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f27ccf99000+0x10cc20) [0x7f27cd0a5c20]
  [180619.415] (EE) 5: /usr/bin/X (0x7f27d50e2000+0x184d0c) [0x7f27d5266d0c]
  [180619.415] (EE) 6: /usr/bin/X (DRI2CopyRegion+0x8b) [0x7f27d526769b]
  [180619.415] (EE) 7: /usr/bin/X (0x7f27d50e2000+0x187ac3) [0x7f27d5269ac3]
  [180619.415] (EE) 8: /usr/bin/X (0x7f27d50e2000+0x580a7) [0x7f27d513a0a7]
  [180619.415] (EE) 9: /usr/bin/X (0x7f27d50e2000+0x5c29b) [0x7f27d513e29b]
  [180619.415] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f27d2dc8a40]
  [180619.415] (EE) 11: /usr/bin/X (0x7f27d50e2000+0x4662e) [0x7f27d512862e]
  [180619.415] (EE) 
  [180619.416] (EE) Segmentation fault at address 0xffffffffffffff00
  [180619.416] (EE) 
  Fatal server error:
  [180619.416] (EE) Caught signal 11 (Segmentation fault). Server aborting

  Steps to reproduce:

  1) Open any application that requires hardware acceleration

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.17.2-0ubuntu1
  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
  CurrentDesktop: Unity
  Date: Thu Apr 30 13:04:32 2015
  DistUpgraded: 2015-04-27 12:47:24,708 DEBUG enabling apt cron job
  DistroCodename: vivid
  DistroVariant: ubuntu
  DkmsStatus:
   virtualbox, 4.3.26, 3.16.0-34-generic, x86_64: installed
   virtualbox, 4.3.26, 3.19.0-15-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:8534]
  MachineType: System76, Inc. Sable Complete
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic root=UUID=b6dcd857-a5ea-4fd7-b059-4cacd0b5b3c3 ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: Upgraded to vivid on 2015-04-27 (3 days ago)
  dmi.bios.date: 12/19/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0210
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: H81T
  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: System76, Inc.
  dmi.chassis.version: sabt2
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0210:bd12/19/2013:svnSystem76,Inc.:pnSableComplete:pvrsabt2:rvnASUSTeKCOMPUTERINC.:rnH81T:rvrRevX.0x:cvnSystem76,Inc.:ct3:cvrsabt2:
  dmi.product.name: Sable Complete
  dmi.product.version: sabt2
  dmi.sys.vendor: System76, Inc.
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Thu Apr 30 13:03:10 2015
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs: Output                                  HDMI-0          HDMI-1           VGA-0
  xserver.version: 2:1.17.1-0ubuntu3
  xserver.video_driver: intel

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