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[Launchpad Bug Tracker <1052245@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1052245

Title:
  Turning system off: Unable to handle kernel paging request

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Sometimes when I reboot, other times when I turn system off, I'm
  getting message like:

  BUG: Unable to handle kernel paging request at ffffc900111d6000 ...

  Looking at the address I have seen that it is not always the same, when I turn off the system, each time I turn off or reboot and see this behavior, the address shown has changed . I've got at least these addresses, one address per time the behavior has been seen:
  ffffc900111d6000
  ffffc900110ca600
  ffffc900111dc600
  ffffc900110bd000
  ffffc900110da600
  and perhaps these are not the only ones.

  After this message (BUG: Unable ...) there is shown a lot of trace
  info that stop with a message like "end of trace" or something
  similar, and after a pause of few seconds, again a lot of trace info
  is shown ending again with a message like "end of trace". It is done
  for some times untill it "apparently" does no more, "apparently" it
  hangs on. I say "apparently" because I haven't  been patient to wait
  more than 2 minutes, then I hard turn off by pressing the power button
  during 5 seconds.

  Every time it happens, when I turn on next time, I see a lot o orphan
  i-nodes being repared in my /home partition.

  I can see these messages at the beginning and at the power down because in my grub.cfg I have no "ro quiet ..." text in the kernel line, I mean in the menuentry, the one that begins:
  linux	/vmlinuz-3.2.0-30-generic root=UUID=.....

  More data: I have:
  ubuntu 12.04 with kernel linux 3.2.0-30-generic    64 bits
  laptop dell studio xps 16
  4 GB RAM

  Let me know if you need more info to solve this.
  Thanks in advance
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  norber     2875 F.... pulseaudio
   /dev/snd/controlC0:  norber     2875 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfc400000 irq 47'
     Mixer name	: 'IDT 92HD73C1X5'
     Components	: 'HDA:111d7675,10280272,00100103'
     Controls      : 17
     Simple ctrls  : 10
  Card1.Amixer.info:
   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xcfeec000 irq 48'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100100'
     Controls      : 6
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=4e10a215-07aa-48c6-8756-9671e4166b7f
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Dell Inc. Studio XPS 1640
  NonfreeKernelModules: fglrx
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=es_ES.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-30-generic root=UUID=4bd41706-e146-4f0f-a773-f11ed71f4fed
  ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-30-generic N/A
   linux-backports-modules-3.2.0-30-generic  N/A
   linux-firmware                            1.79.1
  Tags:  precise running-unity
  Uname: Linux 3.2.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  dmi.bios.date: 07/23/2009
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A10
  dmi.board.name: 0Y537R
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A10
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A10
  dmi.modalias: dmi:bvnDellInc.:bvrA10:bd07/23/2009:svnDellInc.:pnStudioXPS1640:pvrA103:rvnDellInc.:rn0Y537R:rvrA10:cvnDellInc.:ct8:cvrA10:
  dmi.product.name: Studio XPS 1640
  dmi.product.version: A103
  dmi.sys.vendor: Dell Inc.

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