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[Bug 887171] Re: Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 000000000000011f; RIP: 0018:[<ffffffff81032919>] [<ffffffff81032919>] __ticket_spin_lock+0x9/0x20

 

Hi Christopher, Thanks for getting back on this. I can add that the
problem, unfortunately, still occurred in the 12.04 LTS of Ubuntu on
that laptop (HP Elitebook). Since the problem is related to (excessive)
swapping, I thought simply adding more RAM would be a workaround (it had
4Gb). But my University didn't want to buy new ram for an old laptop, so
they got me a Dell Precision with 8Gb. I'm still running 12.04 LTS, and
even with memory more or less maxed out I never had the problems I had
with the HP Elitebook. The HP Elitebook is with a coleague now, so if
this really needs tracking down, I could ask him to do some tests. Will
that be worth the effort?

It would be up to your colleague, if the problem is still reproducible.
This bug report is being closed due to your last comment regarding you
no longer have the hardware. For future reference you can manage the
status of your own bugs by clicking on the current status in the yellow
line and then choosing a new status in the revealed drop down box. You
can learn more about bug statuses at
https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time
to report this bug and helping to make Ubuntu better. Please submit any
future bugs you may find.

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

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https://bugs.launchpad.net/bugs/887171

Title:
  Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at
  000000000000011f; RIP: 0018:[<ffffffff81032919>]  [<ffffffff81032919>]
  __ticket_spin_lock+0x9/0x20

Status in “linux” package in Ubuntu:
  Invalid

Bug description:
  On my HP EliteBook 6930p, running Ubuntu 11.10 (Oneiric) suspend and
  resume does not work properly.

  Sometimes on suspend, and sometimes on resume, the machine completely freezes. Symptoms are:
  - black screen
  - cannot switch virtual terminals (aka Ctrl+Alt+F1)
  - no response on Caps-Lock (Caps light does not change status)
  - cannot reboot using Ctrl+Alt+Del
  - kernel hotkeys do not work (e.g., Ctrl+Alt+SysRq+S does not lead to disk activity)
  - sometimes, kernel 'boot' hotkey (Ctrl+Alt+SysRq+B) still works (but sometimes not)
  - no flashing Caps lock (i.e., not a kernel panick)

  It doesn't always happen, and it seems like the chances are higher if
  I use the machine more intensely. For example, yesterday after a day
  of video editing, the first resume already froze. Normally, I can get
  a number of suspend/resume cycles before the freeze.

  So it was in lucid (10.4) , maverick, natty, and now oneiric (11.10).

  Works in Precise.

  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 0/1
     Subdevice #0: subdevice #0
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  feenstra   2081 F.... pulseaudio
   /dev/snd/pcmC0D0p:   feenstra   2081 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd8420000 irq 47'
     Mixer name	: 'Analog Devices AD1984A'
     Components	: 'HDA:11d4194a,103c30dc,00100400'
     Controls      : 18
     Simple ctrls  : 11
  DistroRelease: Ubuntu 11.10
  HibernationDevice: RESUME=UUID=92c92b0a-05c8-423e-a01a-5e80e3b0af85
  MachineType: Hewlett-Packard HP EliteBook 6930p
  NonfreeKernelModules: fglrx
  Package: linux (not installed)
  PccardctlIdent:
   Socket 0:
     product info: "RICOH", "Bay8Controller", "", ""
     manfid: 0x0000, 0x0000
     function: 254 (unknown)
  PccardctlStatus:
   Socket 0:
     3.3V 16-bit PC Card
     Subdevice 0 (function 0) bound to driver "pata_pcmcia"
  ProcEnviron:
   LC_TIME=en_GB.utf8
   LANGUAGE=en_GB:en
   PATH=(custom, user)
   LANG=en_IE.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=d1d4f1ea-771e-4544-9e04-6e9a64bd9d84 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-12-generic N/A
   linux-backports-modules-3.0.0-12-generic  N/A
   linux-firmware                            1.60
  StagingDrivers: mei
  Tags:  oneiric running-unity staging
  Uname: Linux 3.0.0-12-generic x86_64
  UpgradeStatus: Upgraded to oneiric on 2011-10-16 (22 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers
  dmi.bios.date: 07/31/2009
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68PCD Ver. F.12
  dmi.board.name: 30DC
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 87.27
  dmi.chassis.asset.tag: CZC9351JJ6
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68PCDVer.F.12:bd07/31/2009:svnHewlett-Packard:pnHPEliteBook6930p:pvrF.12:rvnHewlett-Packard:rn30DC:rvrKBCVersion87.27:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 6930p
  dmi.product.version: F.12
  dmi.sys.vendor: Hewlett-Packard

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