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[Launchpad Bug Tracker <755099@xxxxxxxxxxxxxxxxxx>]

[Expired for Unity because there has been no activity for 60 days.]

** Changed in: unity
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/755099

Title:
  X lockup caused by compiz/unity

Status in Unity:
  Expired
Status in nvidia-graphics-drivers package in Ubuntu:
  Expired
Status in unity package in Ubuntu:
  Expired

Bug description:
  Binary package hint: unity

  I had mplayer running fine, I hit f to make it fullscreen, the whole
  desktop froze. No fullscreen mplayer, mplayer sound started to loop,
  no X events possible (mouse and keyboard).

  I sshed in from another box, top showed Xorg at 100%.

  X logs showed:

  [161337.628] (WW) NVIDIA(0): WAIT (0, 6, 0x8000, 0x00007ff4, 0x00007ff4)
  [161340.650] (WW) NVIDIA(0): WAIT (2, 6, 0x8000, 0x00008718, 0x00008964)
  [161342.204] [mi] EQ overflowing. The server is probably stuck in an infinite loop.
  [161342.204] 
  Backtrace:
  [161342.303] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80eaa9b]
  [161342.303] 1: /usr/bin/X (mieqEnqueue+0x1ab) [0x80e9c7b]
  [161342.303] 2: /usr/bin/X (xf86PostMotionEventM+0xbf) [0x80c4b2f]
  [161342.303] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0xf18000+0x368f) [0xf1b68f]
  [161342.303] 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xf18000+0x5099) [0xf1d099]
  [161342.303] 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xf18000+0x5d0d) [0xf1dd0d]
  [161342.303] 6: /usr/bin/X (0x8048000+0x6b3bf) [0x80b33bf]
  [161342.303] 7: /usr/bin/X (0x8048000+0x12dd16) [0x8175d16]
  [161342.303] 8: (vdso) (__kernel_sigreturn+0x0) [0xac4400]
  [161347.650] (WW) NVIDIA(0): WAIT (1, 6, 0x8000, 0x00008718, 0x00008964)
  [161350.660] (WW) NVIDIA(0): WAIT (2, 6, 0x8000, 0x00008718, 0x00003274)
  [161357.660] (WW) NVIDIA(0): WAIT (1, 6, 0x8000, 0x00008718, 0x00003274)
  [161360.661] (WW) NVIDIA(0): WAIT (2, 6, 0x8000, 0x00008718, 0x00004b80)
  [161367.661] (WW) NVIDIA(0): WAIT (1, 6, 0x8000, 0x00008718, 0x00004b80)
  [161370.662] (WW) NVIDIA(0): WAIT (2, 6, 0x8000, 0x00008718, 0x00004ed0)

  ..showing "something" was stuck in a loop doing X calls.

  My most likely candidates were mplayer (using vdpau), compiz and
  chromium (now that it uses the GPU).

  I started by killing mplayer: no change. X was still frozen and taking all the CPU. 
  The display wasn't even refreshed, still showing mplayer while it was gone.

  I next killed compiz, it re-spun and went to 100%, letting X at ~ 40%.
  Desktop was still unusable. Closing the other apps (chromium, evolution, xterms,..) didn't help.
  X even went back to 100%.

  I re-killed compiz, and finally, everything went back to normal.

  So it seems compiz is to blame.

  It already happened to me twice this week. It never happened before so it may be caused by something in the recent uploads
  (compiz, unity, ...)

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: unity 3.8.4-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86 Kernel Module  270.30  Fri Feb 25 14:34:41 PST 2011
   GCC version:  gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu1)
  Architecture: i386
  CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,gnomecompat,commands,vpswitch,resize,snap,mousepoll,regex,move,place,imgpng,session,animation,wall,workarounds,expo,ezoom,staticswitcher,fade,scale,unityshell]
  CompositorRunning: compiz
  Date: Sat Apr  9 00:24:29 2011
  DistUpgraded: Fresh install
  DistroCodename: natty
  DistroVariant: ubuntu
  DkmsStatus:
   nvidia-current, 270.30, 2.6.38-6-generic, i686: installed 
   nvidia-current, 270.30, 2.6.38-8-generic, i686: installed 
   nvidia-current, 270.30, 2.6.38-7-generic, i686: installed
  GraphicsCard:
   nVidia Corporation G94 [GeForce 9600 GT] [10de:0622] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:827c]
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100331)
  InstallationMedia_: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100331)
  InstallationMedia__: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100331)
  InstallationMedia___: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100331)
  JockeyStatus: xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/usr/bin/tcsh
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=03e1779a-d90a-4b59-8b03-2d1198aeb7cc ro quiet splash vt.handoff=7
  ProcVersionSignature_: Ubuntu 2.6.38-8.41-generic 2.6.38.2
  ProcVersionSignature__: Ubuntu 2.6.38-8.41-generic 2.6.38.2
  ProcVersionSignature___: Ubuntu 2.6.38-8.41-generic 2.6.38.2
  Renderer: Unknown
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/04/2006
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: F2
  dmi.board.name: 945PL-S3
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF2:bd08/04/2006:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rn945PL-S3:rvrx.x:cvn:ct3:cvr:
  version.compiz: compiz 1:0.9.4+bzr20110407-0ubuntu2
  version.libdrm2: libdrm2 2.4.23-1ubuntu6
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.1-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu6
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6

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