BUG: scheduling while atomic: swapper/0/0x10000100

[Martin]

BUG: scheduling while atomic: swapper/0/0x10000100

Linux hpubu 2.6.32-14-generic #20-Ubuntu SMP Sat Feb 20 05:38:50 UTC 2010 i686 GNU/Linux

ProblemType: KernelOops
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
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: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: martin 1443 F.... pulseaudio
 /dev/snd/pcmC0D0p: martin 1443 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0x84000000 irq 16'
   Mixer name : 'Analog Devices AD1981'
   Components : 'HDA:11d41981,103c30c2,00100200 HDA:11c11040,103c1378,00100200'
   Controls : 12
   Simple ctrls : 10
Date: Mon Mar 1 17:21:18 2010
DistroRelease: Ubuntu 10.04
Failure: oops
Frequency: Once every few days.
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate i386 (20091020.3)
MachineType: Hewlett-Packard HP Compaq 6715s (KE009ET#AK8)
Package: linux-image-2.6.32-14-generic 2.6.32-14.20
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-14-generic root=UUID=03f3f962-7783-4ca1-8aab-df6de3614d37 ro quiet quiet splash
ProcVersionSignature: Ubuntu 2.6.32-14.20-generic
Regression: No
RelatedPackageVersions: linux-firmware 1.31
Reproducible: No
SourcePackage: linux
TestedUpstream: No
Title: BUG: scheduling while atomic: swapper/0/0x10000100
Uname: Linux 2.6.32-14-generic i686
dmi.bios.date: 11/25/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68YTT Ver. F.0E
dmi.board.name: 30C2
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 71.2D
dmi.chassis.asset.tag: CNU8200K7K
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68YTTVer.F.0E:bd11/25/2008:svnHewlett-Packard:pnHPCompaq6715s(KE009ET#AK8):pvrF.0E:rvnHewlett-Packard:rn30C2:rvrKBCVersion71.2D:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq 6715s (KE009ET#AK8)
dmi.product.version: F.0E
dmi.sys.vendor: Hewlett-Packard

[Chase Douglas (chasedouglas)]

If this issue comes up when you are using bluetooth, please test the kernel with version ending in ~lp534549 at http://people.canonical.com/~cndougla/534549/. Otherwise, if you can figure out how to trigger the issue please install the other kernel (the sched_trace one) and do the following:

# echo function >/sys/kernel/debug/tracing/current_tracer
# ech0 1 >/sys/kernel/debug/tracing/options/latency-format
# echo 1 >/sys/kernel/debug/tracing/tracing_enabled

Then do whatever you need to trigger the issue. Once the bug has been triggered, do:

# cat /sys/kernel/debug/tracing/trace | bzip2 >/tmp/trace.bz2

Finally, attach the trace.bz2 file to this bug so we can take a look.

If you can't figure out a reproduction scenario, try to run the commands anyways. When you get an apport notification of the bug, capture the trace output. I think this will still be safe, but I'm not 100% positive. If you've captured the trace file and it's exceedingly large, feel free to cut out all but the last few hundred lines.

Thanks

[MikeCamel (mike-hingston)]

Seems to have happened on coming back from suspend or hibernate (I'm not sure which).

[Miroslav Hadzhiev (xtigyro)]

It happens often when I use my Bluetooth adapter or when I connect a flash memory adapter.

[Martin (martinmartiini-deactivatedaccount)]

I'm the reporter of this bug.
This error message may have happened when resuming from sleep or when using bluetooth.
Seems bugs have disappeared with subsequent Ubuntu 10.04 lucid updates

[Miroslav Hadzhiev (xtigyro)]

I can confirm that the bug occurs very often when the integrated Bluetooth adapter on my laptop is used.

Lucid Beta1 (fully "dist-upgraded").

[Chase Douglas (chasedouglas)]

Please see bug 534549. It was fixed in the 2.6.32-17 kernel, which did not make it into beta 1. I'm marking this bug as a duplicate because of the similarities. If anyone finds that they still have an issue on the -17 or later kernel, please unduplicate the bug and provide as much information as possible (a trace as requested above would be most helpful).

[Chase Douglas (chasedouglas)]

I should clarify: If you find that you have the same error message as the title of this bug, it may be the same issue or a completely different issue. It's not even possible to tell based on the oops message. The only definitive way is through a trace. The bug reporter (Martini) stated that it seemed related to bluetooth and was fixed just after the -17 kernel was released. If you find you have the same symptoms when using bluetooth on a -17 or later kernel, please reopen this bug. If you have a similar looking issue triggered by something else, please open a different bug and do try to get a trace log.

[Adam Hallgat (hallgat)]

Well this bug affect Natty Narvhal. Usually when using firefox.