Bug 218879

Summary:	archlinux kernel: [Firmware Bug]: CPU4: Topology domain 1 shift 7 != 6
Product:	Linux	Reporter:	igorog (igorognev)
Component:	Kernel	Assignee:	Virtual assignee for kernel bugs (linux-kernel)
Status:	NEW ---
Severity:	normal	CC:	regressions
Priority:	P3
Hardware:	Intel
OS:	Linux
Kernel Version:	6.9.1-arch1-2 (64-bit)	Subsystem:
Regression:	No	Bisected commit-id:

Description igorog 2024-05-24 02:08:36 UTC

Operating System: Arch Linux 
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0
Kernel Version: 6.9.1-arch1-2 (64-bit)
Graphics Platform: X11
Processors: 12 × 12th Gen Intel® Core™ i7-1255U
Memory: 31.1 ГиБ of RAM
Graphics Processor: Mesa Intel® Graphics
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After updating the kernel to version 6.9, the following spam appeared in the boot log:
-----------------------------------------
archlinux kernel: [Firmware Bug]: CPU4: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU4: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU4: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU4: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU4: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU4: Topology domain 6 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU5: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU5: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU5: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU5: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU5: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU5: Topology domain 6 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU6: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU6: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU6: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU6: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU6: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU6: Topology domain 6 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU7: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU7: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU7: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU7: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU7: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU7: Topology domain 6 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU8: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU8: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU8: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU8: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU8: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU8: Topology domain 6 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU9: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU9: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU9: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU9: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU9: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU9: Topology domain 6 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU10: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU10: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU10: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU10: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU10: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU10: Topology domain 6 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU11: Topology domain 1 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU11: Topology domain 2 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU11: Topology domain 3 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU11: Topology domain 4 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU11: Topology domain 5 shift 7 != 6
archlinux kernel: [Firmware Bug]: CPU11: Topology domain 6 shift 7 != 6
-----------------------------------------
The system boots as usual. (IMHO a little slower)

Comment 1 The Linux kernel's regression tracker (Thorsten Leemhuis) 2024-06-01 07:03:42 UTC

A bug with similar symptoms was reported earlier this week and resulted in a patch you might want to try: https://lore.kernel.org/all/87frty8j9p.ffs@tglx/

Comment 2 The Linux kernel's regression tracker (Thorsten Leemhuis) 2024-06-01 07:24:41 UTC

Mentioned it on the list and got a reply: https://lore.kernel.org/all/87mso56sdj.ffs@tglx/

Sounds like you have a firmware bug: https://lore.kernel.org/all/87plt26m2b.ffs@tglx/