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

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Message-ID: <SJ1PR11MB6083D8390032B7072443F83CFC4B2@SJ1PR11MB6083.namprd11.prod.outlook.com>
Date: Fri, 9 Feb 2024 20:28:29 +0000
From: "Luck, Tony" <tony.luck@...el.com>
To: "Mehta, Sohil" <sohil.mehta@...el.com>, "Naik, Avadhut"
	<avadnaik@....com>, "x86@...nel.org" <x86@...nel.org>,
	"linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>
CC: "bp@...en8.de" <bp@...en8.de>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "yazen.ghannam@....com"
	<yazen.ghannam@....com>, Avadhut Naik <avadhut.naik@....com>
Subject: RE: [PATCH 2/2] x86/MCE: Add command line option to extend MCE
 Records pool

> How about being more conservative with the allocations in the previous
> patch so that we don't need to introduce this additional mechanism right
> now? Later, if there is really a need for some specific usage, the patch
> can be re-submitted then with the supporting data.

There used to be a rule-of-thumb when configuring systems to have at least
one GByte of memory per CPU. Anyone following that rule shouldn't be
worried about sub-kilobyte allocations per CPU.

-Tony