I hit upon this when switching from vt3 to vt7 by holding down the Alt button and pressing the right arrow key to get to vt7. From vt6 to vt7 the system hang, and needed a power cycle.
Please let me know if there's anything else I can provide.
ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-19-generic 2.6.35-19.28
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: havard 1870 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with STAC9750,51 at irq 10'
Mixer name : 'SigmaTel STAC9750,51'
Components : 'AC97a:83847650'
Controls : 38
Simple ctrls : 24
Date: Tue Aug 31 22:59:57 2010
Failure: oops
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=7f133012-87d4-413a-8821-a7d3fe2cc682
MachineType: Dell Computer Corporation Latitude X300
PccardctlIdent:
Socket 0:
no product info available
Socket 1:
no product info available
PccardctlStatus:
Socket 0:
no card
Socket 1:
no card
ProcCmdLine: root=UUID=ea1a6182-4b6b-41dc-91cb-c4073a273dac ro quiet splash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
Title: kernel BUG at /build/buildd/linux-2.6.35/drivers/gpu/drm/i915/i915_gem.c:4197!
WpaSupplicantLog:
dmi.bios.date: 06/03/2004
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: A07
dmi.board.name: 0R5949
dmi.board.vendor: Dell Computer Corporation
dmi.board.version: X03
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Computer Corporation
dmi.chassis.version: 00h
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrA07:bd06/03/2004:svnDellComputerCorporation:pnLatitudeX300:pvrA07:rvnDellComputerCorporation:rn0R5949:rvrX03:cvnDellComputerCorporation:ct8:cvr00h:
dmi.product.name: Latitude X300
dmi.product.version: A07
dmi.sys.vendor: Dell Computer Corporation
I have the same problem and it has begun affecting me quite recently on an almost daily basis. Switching between to open Xorg-sessions seems to cause the bug and hangs the Xorg where one is trying to switch to. I can log in with ssh so the system is still accessible but keyboard and mouse are unusable.