Re: AMD zen microcode updates breaks boot

From: Jens Axboe
Date: Mon Sep 30 2024 - 12:25:42 EST


On 9/30/24 10:16 AM, Borislav Petkov wrote:
> On September 30, 2024 2:27:03 PM GMT+02:00, Jens Axboe <axboe@xxxxxxxxx> wrote:
>> Would it perhaps be an idea to revert the cleanup until then? I can't
>> be the only one hit by this. We obviously missed -rc1 now, but...
>
> You're the first one I'm hearing about. Either your configuration is
> weird or something else is amiss. I've tested this patch on all AMD
> families. But sure, feel free to send a properly explained revert and
> I'll ack it.

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.

--
Jens Axboe