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

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Message-ID: <20241018124943.GDZxJZZxtwA9O9eqiU@fat_crate.local>
Date: Fri, 18 Oct 2024 14:49:43 +0200
From: Borislav Petkov <bp@...en8.de>
To: Jens Axboe <axboe@...nel.dk>
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 Fri, Oct 18, 2024 at 01:58:57PM +0200, Borislav Petkov wrote:
> The next thing that is catching my eye is your simulated NUMA config:
> 
> [    1.668943] smp: Brought up 32 nodes, 512 CPUs
> 
> Lemme see if I can repro that here.

I can do only 4 nodes here:

[   23.137188] smp: Brought up 4 nodes, 255 CPUs

But that thing boots fine too.

I guess the next thing to try is a two-socket box like yours.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette