BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0

[Jean-Baptiste Lallement]

Ubuntu Desktop amd64 20120301

Crashed on Ubiquity start in the live session

ProblemType: KernelOops
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-17-generic 3.2.0-17.27
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 1.93-0ubuntu2
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 4766 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0600000 irq 45'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:10ec0269,10280456,00100100 HDA:80862804,80860101,00100000'
   Controls : 26
   Simple ctrls : 12
CasperVersion: 1.305
Date: Thu Mar 1 08:59:33 2012
Failure: oops
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
MachineType: Dell Inc. Inspiron N4010
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- debian-installer/language=fr keyboard-configuration/layoutcode?=fr keyboard-configuration/variantcode?=oss oem-config/enable=true
PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-1ubuntu18
SourcePackage: linux
StagingDrivers: mei
Title: BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/19/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 021CN3
dmi.board.vendor: Dell Inc.
dmi.board.version: A11
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A11
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd01/19/2011:svnDellInc.:pnInspironN4010:pvrA11:rvnDellInc.:rn021CN3:rvrA11:cvnDellInc.:ct8:cvrA11:
dmi.product.name: Inspiron N4010
dmi.product.version: A11
dmi.sys.vendor: Dell Inc.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/943861

[Joseph Salisbury (jsalisbury)]

Hi Jean-Baptiste,

Did this issue just start happening with the Ubuntu Desktop amd64 20120301 build? Is there an easy way to reproduce this bug?

[Jean-Baptiste Lallement (jibel)]

this is the first build on which this bug occurred, but it crashed only once. It appears randomly and I can't reproduce it.

[Joseph Salisbury (jsalisbury)]

There is a test kernel available for this bug at:
  http://people.canonical.com/~apw/lp922906-precise/

Can you test this kernel and report back in bug 922906 where or not the test kernel resolved this bug?