BUG: scheduling while atomic: swapper/0/0x10010000

[Anthony Hook]

This bug reported itself shortly after logging in from a fresh startup.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-18-generic 2.6.32-18.27
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-18-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: anthony 1561 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6ffc000 irq 21'
   Mixer name : 'SigmaTel STAC9228'
   Components : 'HDA:83847616,1028022e,00100201'
   Controls : 28
   Simple ctrls : 18
Date: Fri Apr 2 16:47:42 2010
Failure: oops
Frequency: This has only happened once.
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100226)
MachineType: Dell Inc. XPS M1530
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-18-generic root=UUID=e8c42cd3-382a-4d2c-9960-71eea59e285c ro quiet splash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
Title: BUG: scheduling while atomic: swapper/0/0x10010000
dmi.bios.date: 11/19/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A12
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA12:bd11/19/2008:svnDellInc.:pnXPSM1530:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1530
dmi.sys.vendor: Dell Inc.

[Chase Douglas (chasedouglas)]

@Anthony:

The oops text normally contains data we need to debug the issue. However, for these bugs the data is useless. To get the data we need, please do the following:

$ sudo sh -c "echo function > /sys/kernel/debug/tracing/current_tracer"

Trigger the bug, then capture the trace output:

$ cat /sys/kernel/debug/tracing/trace | bzip2 -c > trace.bz2

Then upload trace.bz2 to this bug report.

Thanks

[Anthony Hook (anthonyhook)]

@Chase

I will, the problem is that I have no idea what actually triggered this crash, apport just told me about it when I started up. I'll do the first line, see if anything dies, and try to get the trace.

Thanks.

[Chase Douglas (chasedouglas)]

FYI, my initial instructions were a little wrong. Please see the instructions at https://wiki.ubuntu.com/KernelTeam/DebuggingSchedulingWhileAtomic

Thanks

[Anthony Hook (anthonyhook)]

Noted, I'll give it a shot. Thanks.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu development release http://cdimage.ubuntu.com/daily-live/current/ . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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