I believe I may still be encountering this bug, this seems to happen any time the system is under significant load. Attached is my kern.log from right after the NMI watchdog soft lockups start. Please let me know if I should submit additional logs from the next time this happens, or submit a new bug.
** Attachment added: "kern.log snippet" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674838/+attachment/4913087/+files/kernlog.log -- 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/1674838 Title: kernel BUG at /build/linux- 7LGLH_/linux-4.10.0/include/linux/swapops.h:129 Status in The Ubuntu-power-systems project: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux-hwe-edge package in Ubuntu: Fix Released Status in linux source package in Zesty: Fix Released Status in linux-hwe-edge source package in Zesty: Fix Released Bug description: Randomly, khugepaged process will take 100% CPU, and I can only restart the computer to recover it. Relevant dmesg attached (dmesg_crash.txt). ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-4.10.0-14-generic 4.10.0-14.16 ProcVersionSignature: Ubuntu 4.10.0-14.16-generic 4.10.3 Uname: Linux 4.10.0-14-generic x86_64 ApportVersion: 2.20.4-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mathieu 2221 F.... pulseaudio /dev/snd/pcmC1D0p: mathieu 2221 F...m pulseaudio /dev/snd/controlC1: mathieu 2221 F.... pulseaudio CurrentDesktop: Unity:Unity7 Date: Tue Mar 21 23:03:23 2017 HibernationDevice: RESUME=UUID=67e78e4c-94ee-447c-ae60-4387dae296dd InstallationDate: Installed on 2016-01-31 (415 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160131) MachineType: LENOVO 20344 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-14-generic root=UUID=b982929e-11d0-4984-885c-6c9daba24836 ro noprompt quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.10.0-14-generic N/A linux-backports-modules-4.10.0-14-generic N/A linux-firmware 1.164 SourcePackage: linux UpgradeStatus: Upgraded to zesty on 2017-03-02 (19 days ago) dmi.bios.date: 10/16/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 96CN29WW(V1.15) dmi.board.asset.tag: 31900058WIN dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900058WIN dmi.chassis.asset.tag: 31900058WIN dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Yoga 2 13 dmi.modalias: dmi:bvnLENOVO:bvr96CN29WW(V1.15):bd10/16/2014:svnLENOVO:pn20344:pvrLenovoYoga213:rvnLENOVO:rnINVALID:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoYoga213: dmi.product.name: 20344 dmi.product.version: Lenovo Yoga 2 13 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1674838/+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
