Eric Detheridge, at your earliest convenience, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue.
If testing on your main install would be inconvenient, one may: 1) Install Ubuntu to a different partition and then test this there. 2) Backup, or clone the primary install. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Tags added: latest-bios-5601 ** Attachment removed: "Dependencies.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1482187/+attachment/4440406/+files/Dependencies.txt ** Changed in: linux (Ubuntu) Importance: Low => Medium -- 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/1482187 Title: [147461.082140] BUG: soft lockup - CPU#3 stuck for 22s! [khugepaged:40] Status in linux package in Ubuntu: Incomplete Bug description: Happened right after a YouTube video of music finished. mouse and keyboard locked up but system monitor applet kept running showing full usage of all four cpu cores. tried to log on remotely but this was very slow. used htop to see what was using cpu but it showed only three cores active with boinc work units as usual conflicting with the system monitor applet. eventually htop stopped working. could not find excess cpu usage with top either. eventually the system monitor applet showed only 50% cpu usage with lots of io waiting. eventually did soft reset. cpu is overclocked but has run stable with heavy boinc usage for weeks. ProblemType: KernelOops DistroRelease: Ubuntu 14.04 Package: linux-image-3.16.0-45-generic 3.16.0-45.60~14.04.1 ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14 Uname: Linux 3.16.0-45-generic x86_64 NonfreeKernelModules: fglrx Annotation: Your system might become unstable now and might need to be restarted. ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 Date: Thu Aug 6 06:00:27 2015 Failure: oops InstallationDate: Installed on 2013-02-13 (904 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) SourcePackage: linux-lts-utopic Title: [147461.082140] BUG: soft lockup - CPU#3 stuck for 22s! [khugepaged:40] UpgradeStatus: Upgraded to trusty on 2014-05-12 (451 days ago) --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=5789d1b5-fee2-4f44-8401-ae2633a5a6d9 InstallationDate: Installed on 2013-02-13 (1040 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: System manufacturer System Product Name NonfreeKernelModules: fglrx Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-21-generic root=/dev/mapper/ubuntu-root ro quiet splash nogpumanager vt.handoff=7 ProcVersionSignature: Ubuntu 4.2.0-21.25~14.04.1-generic 4.2.6 RelatedPackageVersions: linux-restricted-modules-4.2.0-21-generic N/A linux-backports-modules-4.2.0-21-generic N/A linux-firmware 1.127.19 RfKill: Tags: trusty Uname: Linux 4.2.0-21-generic x86_64 UpgradeStatus: Upgraded to trusty on 2014-05-12 (586 days ago) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo WifiSyslog: _MarkForUpload: True dmi.bios.date: 05/22/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 5601 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: F1A75-M-PRO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5601:bd05/22/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnF1A75-M-PROR2.0:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1482187/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

