Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19-rc7 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'. 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/v4.19-rc7/ ** 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/1796385 Title: watchdog: BUG: soft lockup - CPU#10 stuck for 22s! [gnome-shell:1112] Status in linux package in Ubuntu: Incomplete Bug description: I can use the system for a while, then at random, the screen blinks and freezes. Must reboot. Seems to happen both with Wayland and Xorg. ProblemType: KernelOops DistroRelease: Ubuntu 18.10 Package: linux-image-4.18.0-8-generic 4.18.0-8.9 ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7 Uname: Linux 4.18.0-8-generic x86_64 Annotation: Your system might become unstable now and might need to be restarted. ApportVersion: 2.20.10-0ubuntu11 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: greg 2039 F.... pulseaudio /dev/snd/controlC1: greg 2039 F.... pulseaudio Date: Tue Oct 2 15:56:23 2018 Failure: oops InstallationDate: Installed on 2018-09-28 (7 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20180927) IwConfig: lo no wireless extensions. eno1 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. Default string ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic root=UUID=ce06b10d-2a7f-49db-a15b-85554d9a7e4d ro quiet splash vt.handoff=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: kerneloops-daemon N/A RfKill: SourcePackage: linux Title: watchdog: BUG: soft lockup - CPU#10 stuck for 22s! [gnome-shell:1112] UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/07/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F23 dmi.board.asset.tag: Default string dmi.board.name: X99-UD4-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF23:bd06/07/2017:svnGigabyteTechnologyCo.,Ltd.:pnDefaultstring:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnX99-UD4-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: Default string dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796385/+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
