Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at (null); RIP: 0010:[<ffffffff81587a12>] [<ffffffff81587a12>] __mutex_lock_slowpath+0xd2/0x190

[obelixonwings]

ubuntu 10.10, kernel .8, amd 64bit,
starts any second time regularly, but reports that crash whereas everything seems to work fine

ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-8-generic 2.6.35-8.13
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-8.13-generic 2.6.35-rc5
Uname: Linux 2.6.35-8-generic x86_64
AcpiTables: Error: [Errno 13] Permission denied
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], 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: thomi 1635 F.... pulseaudio
 /dev/snd/pcmC0D0p: thomi 1635 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xd4400000 irq 16'
   Mixer name : 'Analog Devices AD1984A'
   Components : 'HDA:11d4194a,103c3613,00100400 HDA:11c11040,103c1378,00100200'
   Controls : 18
   Simple ctrls : 11
Date: Sat Jul 17 13:06:17 2010
Failure: oops
Frequency: Once a day.
HibernationDevice: RESUME=UUID=5dc67290-677c-4983-bda2-2830adcf0501
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20091209)
MachineType: Hewlett-Packard HP Compaq 6735s
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-8-generic root=UUID=2af8ee1f-87df-4d43-b0ed-64e05230d492 ro splash quiet splash
RelatedPackageVersions: linux-firmware 1.37
SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at (null)
dmi.bios.date: 03/05/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68GPP Ver. F.09
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 30E4
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 94.1E
dmi.chassis.asset.tag: CNU9096HWT
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68GPPVer.F.09:bd03/05/2009:svnHewlett-Packard:pnHPCompaq6735s:pvrF.09:rvnHewlett-Packard:rn30E4:rvrKBCVersion94.1E:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq 6735s
dmi.product.version: F.09
dmi.sys.vendor: Hewlett-Packard

[penalvch (penalvch)]

obelixonwings, thank you for reporting this and helping make Ubuntu better. Maverick reached EOL on April 2012.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We were wondering if this is still an issue in a supported release? If so, can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command in a supported release from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[Launchpad Janitor (janitor)]

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