Public bug reported:
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
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug hirsute
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https://bugs.launchpad.net/bugs/1942952
Title:
Kernel Call Trace on Secure Boot
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