linux-kernel - RE: [RFC PATCH 0/3] RAS: Correctable Errors Collector thing

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Date:	Wed, 28 May 2014 17:21:57 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	"masbock@...ux.vnet.ibm.com" <masbock@...ux.vnet.ibm.com>,
	Chen Yucong <slaoub@...il.com>
CC:	Borislav Petkov <bp@...en8.de>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-edac <linux-edac@...r.kernel.org>, X86 ML <x86@...nel.org>
Subject: RE: [RFC PATCH 0/3] RAS: Correctable Errors Collector thing

> A possible alternative would be to soft-offline the page. This is
> currently done in APEI code when corrected memory error thresholds are
> exceeded and reported by UEFI via a generic hardware error source
> (GHES). 

+1

This is what the existing mcelog(8) daemon does when it sees an excessive
number of corrected errors on a page (using /sys/devices/system/memory/soft_offline_page
as the user->kernel interface to get to this function).

-Tony