kernel BUG at /build/buildd/linux-3.0.0/drivers/gpu/drm/i915/i915_gem.c:2124!

[JAKemp]

The laptop locked up at the blank login screen when resuming from sleep.

ProblemType: KernelOops
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-7-generic 3.0.0-7.8
ProcVersionSignature: Ubuntu 3.0.0-7.8-generic 3.0.0
Uname: Linux 3.0.0-7-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jeremy 1308 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xd2620000 irq 46'
   Mixer name : 'Intel CougarPoint HDMI'
   Components : 'HDA:14f1506e,17aa21ce,00100000 HDA:80862805,80860101,00100000'
   Controls : 20
   Simple ctrls : 8
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
   Mixer name : 'ThinkPad EC (unknown)'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [off]
Date: Thu Jul 28 17:59:09 2011
Failure: oops
HibernationDevice: RESUME=UUID=5c909a1a-7a4e-4ea5-82b8-e83e60bc1d09
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
MachineType: LENOVO 4177CTO
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-7-generic root=UUID=bcd46de8-bd7c-4cc8-a3cd-ffbf90a0906b ro quiet splash vt.handoff=7
RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-1ubuntu13
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
Title: kernel BUG at /build/buildd/linux-3.0.0/drivers/gpu/drm/i915/i915_gem.c:2124!
UpgradeStatus: Upgraded to oneiric on 2011-07-28 (0 days ago)
dmi.bios.date: 03/31/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 83ET53WW (1.23 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4177CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr83ET53WW(1.23):bd03/31/2011:svnLENOVO:pn4177CTO:pvrThinkPadT420:rvnLENOVO:rn4177CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4177CTO
dmi.product.version: ThinkPad T420
dmi.sys.vendor: LENOVO