linux-kernel - Re: AMD zen microcode updates breaks boot

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Message-ID: <a395a18b-3478-45dd-aabd-ccc9d0851318@kernel.dk>
Date: Thu, 17 Oct 2024 08:40:18 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Borislav Petkov <bp@...en8.de>
Cc: Thomas Gleixner <tglx@...utronix.de>,
 the arch/x86 maintainers <x86@...nel.org>,
 LKML <linux-kernel@...r.kernel.org>,
 "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>
Subject: Re: AMD zen microcode updates breaks boot

On 10/17/24 8:27 AM, Borislav Petkov wrote:
> On Thu, Oct 17, 2024 at 08:23:10AM -0600, Jens Axboe wrote:
>> Yep, it boots with that added on current -git WITH the microcode
>> package installed.
> 
> Ok, lemme go stare.
> 
> In the meantime, is it in some way possible to catch serial output from the
> box with my patch?
> 
> It should be dumping something to serial, a splat or so...

Maybe? There might be some way to do it through ilo. I'm not near the box
today, but I can take a look at that tomorrow most likely.

-- 
Jens Axboe