Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.14 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-trusty/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1299618 Title: BUG: soft lockup - CPU#0 stuck for 22s! [Xorg:1188] Status in “linux” package in Ubuntu: Incomplete Bug description: Tried to log out. ProblemType: KernelOops DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-20-generic 3.13.0-20.42 ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7 Uname: Linux 3.13.0-20-generic x86_64 NonfreeKernelModules: nvidia Annotation: Your system might become unstable now and might need to be restarted. ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 Date: Sat Mar 29 23:31:04 2014 DuplicateSignature: BUG: soft lockup - CPU#0 stuck for 22s! [Xorg:1188] RIP: 0010:location location os_io_read_dword+0xc/0x10 [nvidia] Failure: oops HibernationDevice: RESUME=UUID=92988819-c50c-4959-8e03-c1d4a29f6d60 InstallationDate: Installed on 2014-03-29 (0 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Gigabyte Technology Co., Ltd. Z87X-UD5H ProcFB: 0 EFI VGA 1 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-20-generic.efi.signed root=UUID=3f11acf3-57a8-4272-a380-ef71af26cf08 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-3ubuntu7 RfKill: SourcePackage: linux StagingDrivers: r8712u Title: BUG: soft lockup - CPU#0 stuck for 22s! [Xorg:1188] UpgradeStatus: Upgraded to trusty on 2014-03-29 (0 days ago) dmi.bios.date: 01/17/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F8 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z87X-UD5H-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF8:bd01/17/2014:svnGigabyteTechnologyCo.,Ltd.:pnZ87X-UD5H:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ87X-UD5H-CF:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: Z87X-UD5H dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1299618/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp