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[Wookey <wookey@xxxxxxxxxxxx>]

apport information

** Tags added: apport-collected natty ubuntu

** Description changed:

  Binary package hint: xserver-xorg-video-nouveau
  
  I got back to my machine in the morning to find that the display showed a slightly corrupted opengl screensaver image with the following text at the top of the screen:
  gltext:../../nouveau/nouveau_pushbuf.c:273: nouveau_pushbuf_flush: Assertion `!nouveau_pushbuf_space(chan,min)' failed.
  xscreensaver: 19:48:14: 0: child pid 5290 (gltext) terminated with signal 6.
  
  The keyboard is dead in a 'scroll lock/numlock don't change the LEDs' sort of way.
  I can still ssh into the machine and X is still running (using 66% CPU) along with all my other apps and processes.
  xscreensaver master process is still running too. It does not respond to DISPLAY=:0 xscreensaver-command -deactivate
  (or -version)
  stracing the command shows:(snipping a load of startup file checking):
  ...
  socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3
  connect(3, {sa_family=AF_FILE, path=@"/tmp/.X11-unix/X0"}, 20) = 0
  getpeername(3, {sa_family=AF_FILE, path=@"/tmp/.X11-unix/X0"}, [20]) = 0
  uname({sys="Linux", node="e102475-lin", ...}) = 0
  access("/home/wookey/.Xauthority", R_OK) = 0
  open("/home/wookey/.Xauthority", O_RDONLY) = 4
  fstat(4, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f37c42e7000
  read(4, "", 4096)                       = 0
  close(4)                                = 0
  munmap(0x7f37c42e7000, 4096)            = 0
  fcntl(3, F_GETFL)                       = 0x2 (flags O_RDWR)
  fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
  fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
  poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
  writev(3, [{"l\0\v\0\0\0\0\0\0\0\0\0", 12}, {"", 0}], 2) = 12
  read(3, 0x1440590, 8)                   = -1 EAGAIN (Resource temporarily unavailable)
  poll([{fd=3, events=POLLIN}], 1, -1 <unfinished ...>
  
  Which seems to shwo that the X socket simply isn't responding, so the
  server is dead to useful activity.
  
  hupping the X process doesn't help. restarting gdm (and thus X) makes
  the display fill with random stuff (lots of little tiles of X stuff) but
  the keyboard is still dead. Only rebooting the machine gets you back to
  a useful state.
  
  This appears to be the same bug as
  https://bugs.launchpad.net/ubuntu/+source/extremetuxracer/+bug/612971
  provoked by a different app, and extremely similar to the older (Karmic)
  https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/586714
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xscreensaver 5.11-1ubuntu2
  ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
  Uname: Linux 2.6.35-22-generic x86_64
  Architecture: amd64
  Date: Thu Nov 11 11:13:31 2010
  ProcEnviron:
   SHELL=/bin/bash
   LANG=en_GB.UTF-8
  SourcePackage: xscreensaver
+ --- 
+ Architecture: amd64
+ CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
+ DRM.card0.HDMI.A.1:
+  status: disconnected
+  enabled: disabled
+  dpms: On
+  modes: 
+  edid-base64:
+ DRM.card0.VGA.1:
+  status: connected
+  enabled: disabled
+  dpms: On
+  modes: 1680x1050 1280x1024 1280x1024 1440x900 1440x900 1280x960 1280x800 1152x864 1152x720 1024x768 1024x768 832x624 800x600 800x600 640x480 640x480 720x400
+  edid-base64: AP///////wAJ0Q14RVQAABAUAQMOLx54LsT2o1dKnCMRT1Sla4BxAIEAlQCVD4GAgUCzAAEBfC6QoGAaHkAwIDYA2SkRAAAYAAAA/wBINEEwODI3OVNMMAogAAAA/QA3TB9TEQAKICAgICAgAAAA/ABCZW5RIEcyMjAwVwogAEU=
+ DistUpgraded: Log time: 2011-05-17 17:26:38.668425
+ DistroCodename: natty
+ DistroRelease: Ubuntu 11.04
+ DistroVariant: ubuntu
+ DkmsStatus:
+  virtualbox-ose-guest, 4.0.4, 2.6.35-28-generic, x86_64: installed 
+  virtualbox-ose-guest, 4.0.4, 2.6.38-8-generic, x86_64: installed
+ GdmLog: X: /tmp/.X11-unix has suspicious mode (not 1777) or is not a directory, aborting.
+ GraphicsCard:
+  nVidia Corporation GT218 [GeForce 210] [10de:0a65] (rev a2) (prog-if 00 [VGA controller])
+    Subsystem: ASUSTeK Computer Inc. Device [1043:8307]
+ MachineType: LENOVO 7484WUL
+ Package: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7
+ PackageArchitecture: amd64
+ ProcEnviron:
+  LANG=en_GB.UTF-8
+  SHELL=/bin/bash
+ ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic root=/dev/mapper/vg_root-lv_root ro quiet splash vt.handoff=7
+ ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
+ Renderer: Unknown
+ Tags:  natty ubuntu
+ Uname: Linux 2.6.38-8-generic x86_64
+ UpgradeStatus: Upgraded to natty on 2011-05-23 (10 days ago)
+ UserGroups: adm fuse sudo
+ dmi.bios.date: 02/01/2010
+ dmi.bios.vendor: LENOVO
+ dmi.bios.version: 5CKT61AUS
+ dmi.board.name: LENOVO
+ dmi.board.vendor: LENOVO
+ dmi.board.version: NONE
+ dmi.chassis.asset.tag: �������������������������
+ dmi.chassis.type: 3
+ dmi.chassis.vendor: LENOVO
+ dmi.chassis.version: NONE
+ dmi.modalias: dmi:bvnLENOVO:bvr5CKT61AUS:bd02/01/2010:svnLENOVO:pn7484WUL:pvrThinkCentreM58p:rvnLENOVO:rnLENOVO:rvrNONE:cvnLENOVO:ct3:cvrNONE:
+ dmi.product.name: 7484WUL
+ dmi.product.version: ThinkCentre M58p
+ dmi.sys.vendor: LENOVO
+ version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
+ version.ia32-libs: ia32-libs 20090808ubuntu13
+ version.libdrm2: libdrm2 2.4.23-1ubuntu6
+ version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
+ version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 7.10.2-0ubuntu2
+ version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
+ version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
+ version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
+ version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
+ version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

** Attachment added: "BootDmesg.txt"
   https://bugs.launchpad.net/bugs/673977/+attachment/2153377/+files/BootDmesg.txt

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https://bugs.launchpad.net/bugs/673977

Title:
  xscreensaver crashed (display and keyboard dead) on nouveau assertion