FTR - This behavior is caused by https://web.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c162ba4f45ab6ef3b7114af6fb419f1833f050c0
As you can see this makes sure that only known microcode is loaded. This is a very intentional mitigation for https://bughunters.google.com/blog/5424842357473280/zen-and-the-art-of- microcode-hacking So if you're seeing the message it means one of two things: 1) There are missing patches enumerating microcode checksums in the kernel you're running 2) There was a bug where your system was excluded. 1 is more likely, @juerg can you please make sure that you keep this up to date as microcode gets updated? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-6.11 in Ubuntu. https://bugs.launchpad.net/bugs/2114974 Title: microcode: You should not be seeing this. Status in linux-hwe-6.11 package in Ubuntu: Incomplete Bug description: Appears on kernel boot: [ 0.000000] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.000000] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.000000] Linux version 6.11.0-26-generic (buildd@lcy02-amd64-074) (x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, GNU ld (GNU Binutils for Ubuntu) 2.42) #26~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Apr 17 19:20:47 UTC 2 (Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11) ... [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa50000f [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 0.001712] microcode: You should not be seeing this. Please send the following couple of lines to x86-<at>-kernel.org [ 0.001712] microcode: CPUID(1).EAX: 0xa50f00, current revision: 0xa500011 [ 1.139893] microcode: Current revision: 0x0a500011 [ 1.139917] microcode: Updated early from: 0x0a50000f ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.11.0-26-generic 6.11.0-26.26~24.04.1 ProcVersionSignature: Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11 Uname: Linux 6.11.0-26-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.7 Architecture: amd64 CRDA: N/A CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Thu Jun 19 12:04:15 2025 InstallationDate: Installed on 2024-02-26 (479 days ago) InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240226) MachineType: LENOVO 82N6 ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 nvidia-drmdrmfb ProcKernelCmdLine: initrd=\ea0ce12994da48e4bdae982e67fe4ff5\6.11.0-26-generic\initrd.img-6.11.0-26-generic root=/dev/mapper/hostname rootflags=subvol=@ usbcore.autosuspend=-1 systemd.machine_id=ea0ce12994da48e4bdae982e67fe4ff5 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-6.11.0-26-generic N/A linux-backports-modules-6.11.0-26-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.13 SourcePackage: linux-hwe-6.11 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/16/2024 dmi.bios.release: 1.65 dmi.bios.vendor: LENOVO dmi.bios.version: GKCN65WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0R32862 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Legion 7 16ACHg6 dmi.ec.firmware.release: 1.65 dmi.modalias: dmi:bvnLENOVO:bvrGKCN65WW:bd01/16/2024:br1.65:efr1.65:svnLENOVO:pn82N6:pvrLegion716ACHg6:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLegion716ACHg6:skuLENOVO_MT_82N6_BU_idea_FM_Legion716ACHg6: dmi.product.family: Legion 7 16ACHg6 dmi.product.name: 82N6 dmi.product.sku: LENOVO_MT_82N6_BU_idea_FM_Legion 7 16ACHg6 dmi.product.version: Legion 7 16ACHg6 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.11/+bug/2114974/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
