linux-kernel - Re: [PATCH 2/2] x86/MCE: Add command line option to extend MCE Records pool

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Date: Mon, 12 Feb 2024 09:58:01 +0100
From: Borislav Petkov <bp@...en8.de>
To: "Naik, Avadhut" <avadnaik@....com>
Cc: Sohil Mehta <sohil.mehta@...el.com>, x86@...nel.org,
	linux-edac@...r.kernel.org, tony.luck@...el.com,
	linux-kernel@...r.kernel.org, yazen.ghannam@....com,
	Avadhut Naik <avadhut.naik@....com>
Subject: Re: [PATCH 2/2] x86/MCE: Add command line option to extend MCE
 Records pool

On Sun, Feb 11, 2024 at 08:54:29PM -0600, Naik, Avadhut wrote:
> Okay. Will make changes to allocate memory and set size of the pool
> when it is created. Also, will remove the command line parameter and
> resubmit.

Before you do, go read that original thread again but this time take
your time to grok it.

And then try answering those questions:

* Why are *you* fixing this? I know what the AWS reason is, what is
yours?

* Can you think of a slick deduplication scheme instead of blindly
raising the buffer size?

* What's wrong with not logging some early errors, can we live with that
too? If it were firmware-first, it cannot simply extend its buffer size
because it has limited space. So what does firmware do in such cases?

Think long and hard about the big picture, analyze the problem properly
and from all angles before you go and do patches.

Thx.

-- 
Regards/Gruss,
    Boris.

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