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Date:      Thu, 7 Feb 2008 15:53:12 +0100
From:      Bernd Walter <ticso@cicely12.cicely.de>
To:        freebsd-alpha@freebsd.org
Subject:   Re: DS10L - "processor correctable error"
Message-ID:  <20080207145311.GF24583@cicely12.cicely.de>
In-Reply-To: <20080206121738.GA91825@mech-aslap33.men.bris.ac.uk>
References:  <20080206121738.GA91825@mech-aslap33.men.bris.ac.uk>

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On Wed, Feb 06, 2008 at 12:17:38PM +0000, Anton Shterenlikht wrote:
> Hello
> 
> I'm running FBSD 6.2-stable on DS10L 466MHz with scsi disk.
> 
> I just received
> "Warning: received processor correctable error."
> 
> in dmesg.
> 
> What is the meaning of this warning? Something wrong with hardware?

This is an ECC memory correction.
It is OK to see it once in a while, since even 100% working DRAM has
failures from time to time (called softerror rate) - therefor the need
to have ECC in important systems
If however you see a lot of them it is time to replace the faulty
memory.

-- 
B.Walter                http://www.bwct.de      http://www.fizon.de
bernd@bwct.de           info@bwct.de            support@fizon.de



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