Public bug reported:

In last days, I am getting occasional kernel crashes, all with similar 
backtraces.
I also got strange NX problem - see my bug 727652

I will run memory test during nigh just to exclude memory problem.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-5-generic 2.6.38-5.32
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  lukar      1810 F.... pulseaudio
 /dev/snd/pcmC0D0p:   lukar      1810 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 46'
   Mixer name   : 'Conexant CX20561 (Hermosa)'
   Components   : 'HDA:14f15051,17aa20ff,00100000'
   Controls      : 16
   Simple ctrls  : 8
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
7XHT24WW-1.06'
   Mixer name   : 'ThinkPad EC 7XHT24WW-1.06'
   Components   : ''
   Controls      : 1
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [off]
Date: Fri Mar  4 15:35:53 2011
Frequency: I don't know.
HibernationDevice: RESUME=UUID=16ac97e6-961b-4a8f-b763-fc40aeccc5a4
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110129)
MachineType: LENOVO 74705HG
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-5-generic 
root=/dev/mapper/plain-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-5-generic N/A
 linux-backports-modules-2.6.38-5-generic  N/A
 linux-firmware                            1.48
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/10/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET63WW (3.13 )
dmi.board.name: 74705HG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: 
dmi:bvnLENOVO:bvr6DET63WW(3.13):bd03/10/2010:svnLENOVO:pn74705HG:pvrThinkPadX200s:rvnLENOVO:rn74705HG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 74705HG
dmi.product.version: ThinkPad X200s
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kernel-sound natty needs-upstream-testing 
regression-update

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https://bugs.launchpad.net/bugs/729106

Title:
  kernel oops couple of times per day: paging

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