Hmm, in this case we might need your help to do a kernel bisection to figure out which commit is causing this issue:
First, install git and clone the Bionic kernel tree: $ git clone git://kernel.ubuntu.com/ubuntu/ubuntu-bionic.git Then install the tools the you need to build a kernel. $ sudo apt build-dep linux Here we go! $ cd ubuntu-bionic $ git bisect start $ git bisect good Ubuntu-4.15.0-47.50 $ git bisect bad Ubuntu-4.15.0-48.51 In this case you will get roughly 7 commits to try $ make localmodconfig $ make -j`nproc` deb-pkg Install the newly built kernel (deb file) and reboot. If the issue still happens, go to the ubuntu-bionic directory again and: $ git bisect bad Otherwise: $ git bisect good And build the kernel again: $ make -j`nproc` deb-pkg Repeat until you find the commit that causes the regression. Thanks in advance! -- 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/1826800 Title: Linux kernel hard lockup Status in linux package in Ubuntu: Incomplete Bug description: I don't have a lot of information to dd, but running kernel 4.15.0-48-generic was leading to frequent hard lockups. Rolling back to 4.15.0-47-generic has clearly resolved my problem. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-48-generic 4.15.0-48.51 ProcVersionSignature: Ubuntu 4.15.0-47.50-generic 4.15.18 Uname: Linux 4.15.0-47-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: bje 3225 F...m pulseaudio /dev/snd/controlC0: bje 3225 F.... pulseaudio CurrentDesktop: XFCE Date: Mon Apr 29 11:37:23 2019 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=db7a22fe-fdc0-4ff9-a8bd-9faae202574f InstallationDate: Installed on 2016-06-28 (1035 days ago) InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 2306CTO ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-47-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-47-generic N/A linux-backports-modules-4.15.0-47-generic N/A linux-firmware 1.173.5 SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-08-02 (269 days ago) dmi.bios.date: 02/22/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET92WW (2.52 ) dmi.board.asset.tag: Not Available dmi.board.name: 2306CTO dmi.board.vendor: LENOVO dmi.board.version: Win8 STD DPK TPG dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET92WW(2.52):bd02/22/2013:svnLENOVO:pn2306CTO:pvrThinkPadX230:rvnLENOVO:rn2306CTO:rvrWin8STDDPKTPG:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.family: ThinkPad X230 dmi.product.name: 2306CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826800/+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
