Re: [PATCH] Update documentation to reflect what TAINT_CPU_OUT_OF_SPEC means nowadays

[Mathieu Chouquet-Stringer]

	Hello,

On Tue, Dec 08, 2020 at 09:58:32AM -0800, Randy Dunlap wrote:
> 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:
> >> Signed-off-by: Mathieu Chouquet-Stringer <me@mathieu.digital>
> > 
> > Hearing no objection, I've applied this.

Thanks Jon.

> Hm, I was glad to read this new info since my old testing laptop
> now tells me that it needs a microcode update.  :(

In my case I first saw the error because tuned uses
x86_energy_perf_policy which uses to poke at MSRs [1]. And that was
tainting my kernel and I initially couldn't understand why.

It's been fixed but will be released in an upcoming kernel version (it's
in tip at the moment [2]).

Thanks to Borislav for work and for helping me out!

[1] https://lore.kernel.org/lkml/20201117210018.GA4247@weirdfishes/
[2] https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=fe0a5788624c8b8f113a35bbe4636e37f9321241
-- 
Mathieu Chouquet-Stringer                             me@mathieu.digital
            The sun itself sees not till heaven clears.
	             -- William Shakespeare --