WARNING: at /build/buildd/linux-2.6.38/kernel/power/suspend_test.c:53 suspend_test_finish+0x86/0x90()

[Fabu]

After closing the laptop lid it suspends and when opening the lid again the described kernel error occurs during wakeup.

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-7-generic 2.6.38-7.38
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-7.38-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
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: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: fabian 1465 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xd0600000 irq 16'
   Mixer name : 'Conexant CX20582 (Pebble)'
   Components : 'HDA:14f15066,17aa21b2,00100302'
   Controls : 8
   Simple ctrls : 5
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6XHT43WW-1.183000'
   Mixer name : 'ThinkPad EC 6XHT43WW-1.183000'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Thu Mar 24 15:38:12 2011
Failure: oops
HibernationDevice: RESUME=UUID=9bb3ed11-07e1-4415-8102-36f5e92fa4f6
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110319)
MachineType: LENOVO 35082DG
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=8b2eee99-8a01-4267-a60f-6a78883d5bda ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-7-generic N/A
 linux-backports-modules-2.6.38-7-generic N/A
 linux-firmware 1.49
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.38/kernel/power/suspend_test.c:53 suspend_test_finish+0x86/0x90()
UpgradeStatus: Upgraded to natty on 2011-03-22 (1 days ago)
dmi.bios.date: 12/30/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6XET47WW (1.30 )
dmi.board.name: 35082DG
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:bvr6XET47WW(1.30):bd12/30/2010:svnLENOVO:pn35082DG:pvrThinkPadX100e:rvnLENOVO:rn35082DG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 35082DG
dmi.product.version: ThinkPad X100e
dmi.sys.vendor: LENOVO