Re: [PATCH] Update documentation to reflect what TAINT_CPU_OUT_OF_SPEC means nowadays
From: Randy Dunlap
Date: Tue Dec 08 2020 - 12:59:28 EST
On 12/8/20 9:54 AM, Jonathan Corbet wrote:
> On Wed, 2 Dec 2020 16:32:43 +0100
> Mathieu Chouquet-Stringer <me@mathieu.digital> wrote:
>
>> Hello Jonathan,
>>
>> Here's a patch updating the meaning of TAINT_CPU_OUT_OF_SPEC after
>> Borislav introduced changes in a7e1f67ed29f and upcoming patches in tip.
>>
>> TAINT_CPU_OUT_OF_SPEC now means a bit more what it implies as the
>> flag isn't set just because of a CPU misconfiguration or mismatch.
>> Historically it was for SMP kernel oops on an officially SMP incapable
>> processor but now it also covers CPUs whose MSRs have been incorrectly
>> poked at from userspace, drivers being used on non supported
>> architectures, broken firmware, mismatched CPUs, ...
>>
>> Update documentation and script to reflect that.
>>
>> Signed-off-by: Mathieu Chouquet-Stringer <me@mathieu.digital>
>
> Hearing no objection, I've applied this.
Hm, I was glad to read this new info since my old testing laptop
now tells me that it needs a microcode update. :(
--
~Randy