BUG: unable to handle kernel NULL pointer dereference at (null)

Bug #980330 reported by tom24
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Linux
Confirmed
High
linux (Ubuntu)
Incomplete
Medium
Unassigned

Bug Description

hi there,

every time i plug in my typhoon dvb-s box, i get this error when firmware dvb-usb-vp702x-02.fw is loaded.
if i boot my system with old kernel 2.X everything will work fine.

best regards
thomas

lsusb:
Bus 002 Device 003: ID 13d3:3207 IMC Networks DTV-DVB UDST7020BDA DVB-S Box(DVBS for MCE2005)

lsmod:
dvb_usb_vp702x 25591 1
dvb_usb 27623 1 dvb_usb_vp702x
dvb_core 98163 1 dvb_usb
rc_core 21231 1 dvb_usb

ProblemType: KernelOops
DistroRelease: Ubuntu 12.04
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.0.1-0ubuntu2
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: tom 2397 F.... pulseaudio
 /dev/snd/controlC0: tom 2397 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfcff8000 irq 43'
   Mixer name : 'Realtek ALC1200'
   Components : 'HDA:10ec0888,104382fe,00100101'
   Controls : 40
   Simple ctrls : 22
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xfe9fc000 irq 17'
   Mixer name : 'Nvidia GPU 1c HDMI/DP'
   Components : 'HDA:10de001c,10b01401,00100100'
   Controls : 12
   Simple ctrls : 2
Date: Thu Apr 12 23:34:24 2012
Failure: oops
HibernationDevice: RESUME=UUID=a2d2fa7f-f037-4bb2-80fe-6bb0671b8a3a
InstallationMedia: Ubuntu 10.04.2 LTS "Lucid Lynx" - Release i386 (20110211.1)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: System manufacturer P5QL PRO
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic-pae root=UUID=dd853f0f-995a-4413-8d48-05ef9b5b6733 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-1ubuntu18
RfKill:

SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at (null)
UpgradeStatus: Upgraded to precise on 2012-04-11 (1 days ago)
dmi.bios.date: 07/01/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1004
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5QL PRO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1004:bd07/01/2009:svnSystemmanufacturer:pnP5QLPRO:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5QLPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: P5QL PRO
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

Revision history for this message
tom24 (thomasmertins) wrote :
Brad Figg (brad-figg)
Changed in linux (Ubuntu):
status: New → Confirmed
Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.4kernel[1] (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). 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.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-rc2-precise/

tags: added: mutex-lock-slowpath
Changed in linux (Ubuntu):
importance: Undecided → Medium
tags: added: needs-upstream-testing
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
tom24 (thomasmertins) wrote :

Hi

first i want to say thank you for this very quick response.
But i'm sorry 3.4RC2 does not fix ist.
The dmesg tells me the same trace.

Best Regards
Thomas

tags: added: kernel-bug-exists-upstream
removed: needs-upstream-testing
Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org [1]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report.

[1] https://wiki.ubuntu.com/Bugs/Upstream/kernel

Changed in linux (Ubuntu):
status: Incomplete → Triaged
Revision history for this message
tom24 (thomasmertins) wrote :
Changed in linux:
importance: Unknown → High
status: Unknown → Confirmed
Revision history for this message
penalvch (penalvch) wrote :

tom24, could you please test the latest mainline kernel via http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-trusty/ and advise if this is reproducible?

tags: added: latest-bios-1004 regression-release
Changed in linux (Ubuntu):
status: Triaged → Incomplete
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