WARNING: at /build/buildd/linux-2.6.35/net/sched/sch_generic.c:258 dev_watchdog+0x25f/0x270()

Bug #633318 reported by marclang
32
This bug affects 6 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

After upgrading to the latest kernel, I get about 3-4 crash reports upon login (right after boot). All tell me about a "serious kernel problem". I'm just sending in the first one of these - not sure if the others are about the same issue or a different one?

ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-20-generic 2.6.35-20.29
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-20.29-generic 2.6.35.4
Uname: Linux 2.6.35-20-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: marc 1815 F.... pulseaudio
 /dev/snd/controlC0: marc 1815 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 45'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:14f15051,17aa20ff,00100000'
   Controls : 14
   Simple ctrls : 7
Card1.Amixer.info:
 Card hw:1 'Q9000'/'Logitech, Inc. QuickCam Pro 9000 at usb-0000:00:1a.7-5.4, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0990'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 3072
   Mono: Capture 0 [0%] [18.00dB] [off]
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7XHT21WW-1.03'
   Mixer name : 'ThinkPad EC 7XHT21WW-1.03'
   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: Wed Sep 8 16:19:15 2010
Failure: oops
HibernationDevice: RESUME=UUID=f95638b5-1bea-41b6-a95a-3303d09d7a76
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100803.1)
MachineType: LENOVO 7458AH8
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-20-generic root=UUID=6d40e9d2-6d5c-44af-a200-8eb4ccb50c7a ro quiet splash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.35/net/sched/sch_generic.c:258 dev_watchdog+0x25f/0x270()
dmi.bios.date: 12/19/2008
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET38WW (2.02 )
dmi.board.name: 7458AH8
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:bvr6DET38WW(2.02):bd12/19/2008:svnLENOVO:pn7458AH8:pvrThinkPadX200:rvnLENOVO:rn7458AH8:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7458AH8
dmi.product.version: ThinkPad X200
dmi.sys.vendor: LENOVO

Revision history for this message
marclang (langheinrich) wrote :
Brad Figg (brad-figg)
Changed in linux (Ubuntu):
status: New → Confirmed
tags: removed: regression-potential
Revision history for this message
penalvch (penalvch) wrote :

marclang, 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.

summary: - Kernel "crash report" after each login after boot, mentions "serious
- kernel problem". Started with latest kernel update
+ WARNING: at /build/buildd/linux-2.6.35/net/sched/sch_generic.c:258
+ dev_watchdog+0x25f/0x270()
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in linux (Ubuntu):
status: Incomplete → Expired
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