system instability, a number of other crashes - WARNING: at /build/buildd/linux-2.6.31/net/sched/sch_generic.c:246 dev_watchdog+0x1f6/0x210()

[cctsurf]

running firefox and a konsole when this happened. I get a "kspash" crashed, I get a couple of kdesu windows wanting my su password, I really don't know what the hecks going on here. However, I've seen it regularly with the beta (so I reinstalled Jaunty) and now I upgraded again and see it with the final koala. Perhaps the attached logs will help.

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: I82801CAICH3 [Intel 82801CA-ICH3], device 0: Intel ICH [Intel 82801CA-ICH3]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: james 1619 F.... knotify4
                      james 1666 F.... kmix
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801CAICH3'/'Intel 82801CA-ICH3 with CS4299 at irq 11'
   Mixer name : 'Cirrus Logic CS4299 rev 6'
   Components : 'AC97a:43525936'
   Controls : 36
   Simple ctrls : 22
Date: Sat Oct 31 08:19:36 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=1cb21426-008e-4aaf-a66f-06dde1c145ad
Lsusb:
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: IBM 26478MU
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   no product info available
PccardctlStatus:
 Socket 0:
   3.3V 32-bit PC Card
 Socket 1:
   no card
ProcCmdLine: root=UUID=3faa64f3-c374-4d84-afd1-bf4d5efdbf98 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
RfKill:

SourcePackage: linux
Tags: kernel-oops
Title: WARNING: at /build/buildd/linux-2.6.31/net/sched/sch_generic.c:246 dev_watchdog+0x1f6/0x210()
Uname: Linux 2.6.31-14-generic i686
dmi.bios.date: 10/18/2006
dmi.bios.vendor: IBM
dmi.bios.version: 1AET64WW (1.20 )
dmi.board.name: 26478MU
dmi.board.vendor: IBM
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: IBM
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnIBM:bvr1AET64WW(1.20):bd10/18/2006:svnIBM:pn26478MU:pvrNotAvailable:rvnIBM:rn26478MU:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
dmi.product.name: 26478MU
dmi.product.version: Not Available
dmi.sys.vendor: IBM