Re: AMD zen microcode updates breaks boot

From: Jens Axboe
Date: Wed Oct 09 2024 - 07:04:35 EST


On 10/9/24 3:12 AM, Borislav Petkov wrote:
> On Mon, Sep 30, 2024 at 10:25:21AM -0600, Jens Axboe wrote:
>> Hmm, seems like a pretty standard cpu and updated microcode fw, no? But
>> if it's just me, we can just defer until it gets fixed, at least for
>> some more rcs. I just pruned the microcode for now to work around it, as
>> it's pretty annoying to forget about doing the reverts and then booting
>> a broken kernel. The box takes minutes to post+boot.
>
> With the microcode blob removed so that no loading happens, what microcode
> does this box have?
>
> Still 0x0aa00215?

Yep, 0xaa00215

--
Jens Axboe