BUG: scheduling while atomic: swapper/0/0x10000100
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Incomplete
|
Medium
|
Unassigned |
Bug Description
BUG: scheduling while atomic: swapper/
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/
/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,
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-
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=
ProcVersionSign
Regression: No
RelatedPackageV
Reproducible: No
SourcePackage: linux
TestedUpstream: No
Title: BUG: scheduling while atomic: swapper/
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.
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-
dmi.product.name: HP Compaq 6715s (KE009ET#AK8)
dmi.product.
dmi.sys.vendor: Hewlett-Packard
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 debug/tracing/ options/ latency- format debug/tracing/ tracing_ enabled
# ech0 1 >/sys/kernel/
# echo 1 >/sys/kernel/
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