linux-kernel - Re: marching through all physical memory in software

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Message-ID: <20090207030346.GB5587@khazad-dum.debian.net>
Date:	Sat, 7 Feb 2009 01:03:46 -0200
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Chris Friesen <cfriesen@...tel.com>, linux-kernel@...r.kernel.org
Subject: Re: marching through all physical memory in software

On Fri, 06 Feb 2009, Andi Kleen wrote:
> "Chris Friesen" <cfriesen@...tel.com> writes:
> > Someone is asking me about the feasability of "scrubbing" system
> > memory by accessing each page and handling the ECC faults.
> 
> I would expect any ECC RAM capable memory controller designed 
> in the last 10-15 years to be able to do this on its own without
> software intervention. Is that not true? It is certainly
> on x86 (although you sometimes have to change BIOS options)

Is that true for the 82875, and other common desktop chipsets that DO
support ECC ram?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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