The slow CPU (N5000 CPU @ 1.10GHz) may play a role in the watchdog soft lockup. You can increase the watchdog time and check whether the messages will go away and pop up less frequently:
$ echo 20 | sudo tee /proc/sys/kernel/watchdog_thresh The above command will change the default (10) to 20 -- 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/1942952 Title: Kernel Call Trace on Secure Boot Status in linux package in Ubuntu: Incomplete Bug description: Could the call traces in dmesg be related to UEFI secure boot? ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.11.0-34-generic 5.11.0-34.36 ProcVersionSignature: Ubuntu 5.11.0-34.36-generic 5.11.22 Uname: Linux 5.11.0-34-generic x86_64 ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: js1 948 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: KDE Date: Tue Sep 7 21:05:54 2021 InstallationDate: Installed on 2021-09-06 (1 days ago) InstallationMedia: Kubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 0bda:b00b Realtek Semiconductor Corp. Realtek Bluetooth 4.2 Adapter Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Lsusb-t: /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/7p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/9p, 480M |__ Port 8: Dev 2, If 0, Class=Wireless, Driver=btusb, 12M |__ Port 8: Dev 2, If 1, Class=Wireless, Driver=btusb, 12M ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.11.0-34-generic root=/dev/mapper/vgkubuntu-root ro ipv6.disable=1 elevator=deadline splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.11.0-34-generic N/A linux-backports-modules-5.11.0-34-generic N/A linux-firmware 1.197.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/25/2021 dmi.bios.release: 15.63 dmi.bios.vendor: Insyde dmi.bios.version: F.63 dmi.board.name: 84B6 dmi.board.vendor: HP dmi.board.version: KBC Version 76.32 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.ec.firmware.release: 76.32 dmi.modalias: dmi:bvnInsyde:bvrF.63:bd03/25/2021:br15.63:efr76.32:svnHP:pn:pvr:sku:rvnHP:rn84B6:rvrKBCVersion76.32:cvnHP:ct10:cvrChassisVersion: dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+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
