linux-kernel - RE: Hardware Error Kernel Mini-Summit

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Date:	Mon, 14 Jun 2010 13:21:51 -0700
From:	"Luck, Tony" <tony.luck@...el.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andi Kleen <andi@...stfloor.org>
CC:	Nils Carlson <nils.carlson@...d.ltu.se>,
	Ingo Molnar <mingo@...e.hu>, Borislav Petkov <bp@...64.org>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	"Young, Brent" <brent.young@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"bluesmoke-devel@...ts.sourceforge.net" 
	<bluesmoke-devel@...ts.sourceforge.net>,
	Doug Thompson <dougthompson@...ssion.com>,
	Joe Perches <joe@...ches.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Edac Mailing List <linux-edac@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Matt Domsch <Matt_Domsch@...l.com>
Subject: RE: Hardware Error Kernel Mini-Summit

>- In practice it works even without silk screen labels.
>- The current EDAC code displays which DIMMS you have plugged
>  in so you can tell if you unplug one, if it was the DIMM
>  you were aiming at.

Potentially some unnecessary reboot cycles needed:
 - power off, pull a DIMM, power on, check with EDAC
 - repeat until you get the right DIMM

This also assumes that you can unplug just one DIMM. Some
motherboards require pairs of DIMMs to be added/removed together.

-Tony
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