[Bug 1185513] ACPI BIOS Error after upgrade to 5.12.0-1-default
https://bugzilla.suse.com/show_bug.cgi?id=1185513
https://bugzilla.suse.com/show_bug.cgi?id=1185513#c55
--- Comment #55 from Joey Lee
(In reply to Joey Lee from comment #53)
Hi Anthony, and anyone got the same problem.
On x86 platform, the _CPC affects intel_pstate drivers. Base on source code, the CPU priority based on ITMI (Intel Turbo Boost Max Technology) will not be set when _CPC is broken. Using no_hwp module parameter can disable the CPPC part in intel_pstate drivers, it may workaround issue.
Sorry for I am not familiar with intel_pstate driver, and I didn't find a _CPC machine yet. So I don't know what's the really affect to intel_pstate and CPU performance.
I will raise this situation on upstream.
Yes, I will backport Hans's patch to openSUSE TW kernel for testing. -- You are receiving this mail because: You are on the CC list for the bug.
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