On 11/27/25 04:37, Dominik 'Rathann' Mierzejewski wrote:
>> Could you boot the system on a known good kernel and run this, please?
>>
>>      rdmsr -a 0x000001a0
>>
>> That'll dump out MSR_IA32_MISC_ENABLE on all the CPUs.
> # rdmsr -a 0x000001a0
> 60840488
> 60840488
> 60840488
> 60840489

I don't think there's any other way to read this than: the BIOS is buggy
and mis-programmed this MSR on one of the CPUs. We can shut the warning
up, of course. But it _is_ a quite valid warning.

I'm just not sure how much code we want to add to the kernel to silence
a warning on 15-year-old CPUs with buggy BIOSes.

Are there any ill effects other than the warning splat?

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