Re: x86: AMD Zen2 ymm registers rolling back

[Andrew Cooper]

On 22/02/2023 9:14 am, Borislav Petkov wrote:
> On Wed, Feb 22, 2023 at 09:33:19AM +0100, Borislav Petkov wrote:
>> It probably doesn't matter all too much but which kernel are you running
>> this on?
>>
>> Latest and greatest I hope...
> Also, what does
>
> $ grep microcode /proc/cpuinfo | uniq
>
> say?

This sounds suspiciously like an errata which was fixed with a ucode
update last year.

Check that you are up to date with ucode.  If you are, perhaps the fix
needs another look at...

~Andrew