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 v4.18 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/v4.18-rc8 ** 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/1785554 Title: BUG: scheduling while atomic: Xorg/865/0x00000100 Status in linux package in Ubuntu: Incomplete Bug description: unexpected error ProblemType: KernelOops DistroRelease: Ubuntu 18.10 Package: linux-image-4.17.0-6-generic 4.17.0-6.7 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.17.0-6-generic x86_64 Annotation: Your system might become unstable now and might need to be restarted. ApportVersion: 2.20.10-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ian 1896 F.... pulseaudio /dev/snd/controlC1: ian 1896 F.... pulseaudio Date: Mon Aug 6 18:02:20 2018 Failure: oops InstallationDate: Installed on 2018-08-06 (0 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180723) MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=94d4a0a4-084d-4cfe-95ed-d689b51c557a ro recovery nomodeset 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 StagingDrivers: r8188eu Title: BUG: scheduling while atomic: Xorg/865/0x00000100 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/07/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.29 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 144A dmi.board.vendor: Hewlett-Packard dmi.board.version: 65.38 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnHewlett-Packard:bvrF.29:bd11/07/2011:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr059B110000243010010020100:rvnHewlett-Packard:rn144A:rvr65.38:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.family: 103C_5335KV dmi.product.name: HP Pavilion dv6 Notebook PC dmi.product.version: 059B110000243010010020100 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785554/+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