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Date:   Tue, 16 Mar 2021 17:02:35 +0100
From:   Adam Borowski <kilobyte@angband.pl>
To:     Jiri Olsa <jolsa@redhat.com>
Cc:     Borislav Petkov <bp@alien8.de>,
        Tom Lendacky <thomas.lendacky@amd.com>,
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        Michael Petlan <mpetlan@redhat.com>,
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Subject: Re: unknown NMI on AMD Rome
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On Tue, Mar 16, 2021 at 04:45:02PM +0100, Jiri Olsa wrote:
> hi,
> when running 'perf top' on AMD Rome (/proc/cpuinfo below)
> with fedora 33 kernel 5.10.22-200.fc33.x86_64
> 
> we got unknown NMI messages:
> 
> [  226.700160] Uhhuh. NMI received for unknown reason 3d on CPU 90.
> [  226.700162] Do you have a strange power saving mode enabled?
> [  226.700163] Dazed and confused, but trying to continue
> 
> also when discussing ths with Borislav, he managed to reproduce easily
> on his AMD Rome machine

Likewise, 3c on Pinnacle Ridge.


Meow!
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⣾⠁⢠⠒⠀⣿⡁ in the beginning was the boot and root floppies and they were good.
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