Public bug reported: Did an upgrade this morning and since then the performance on my machine has been very sluggish. Apport collected this issue. from top I can see kworker hogging the cpu.
uname -a Linux ronoc-work-laptop 2.6.38-7-generic #39-Ubuntu SMP Fri Mar 25 19:38:02 UTC 2011 i686 i686 i386 GNU/Linux ProblemType: KernelOops DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.38-7-generic 2.6.38-7.39 Regression: Yes Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38 Uname: Linux 2.6.38-7-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 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/by-path', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfe020000 irq 45' Mixer name : 'Analog Devices AD1984' Components : 'HDA:11d41984,17aa20d6,00100400' Controls : 32 Simple ctrls : 20 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7MHT24WW-1.02' Mixer name : 'ThinkPad EC 7MHT24WW-1.02' 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: Mon Mar 28 10:58:36 2011 Failure: oops HibernationDevice: RESUME=UUID=ca50cf91-2c38-48e5-9a17-66fbff522305 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5) MachineType: LENOVO 7673W6M PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=10895c4d-be2e-4bc2-810b-9f25a8100721 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 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux Title: kernel BUG at /build/buildd/linux-2.6.38/drivers/gpu/drm/i915/i915_gem.c:3250! UpgradeStatus: Upgraded to natty on 2011-01-04 (82 days ago) dmi.bios.date: 07/02/2007 dmi.bios.vendor: LENOVO dmi.bios.version: 7NET25WW (1.06 ) dmi.board.name: 7673W6M 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:bvr7NET25WW(1.06):bd07/02/2007:svnLENOVO:pn7673W6M:pvrThinkPadX61:rvnLENOVO:rn7673W6M:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 7673W6M dmi.product.version: ThinkPad X61 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-kerneloops i386 kernel-oops natty needs-upstream-testing regression-release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/744154 Title: kernel BUG at /build/buildd/linux-2.6.38/drivers/gpu/drm/i915/i915_gem.c:3250! -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs