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Date:      Mon, 29 Jun 1998 22:33:08 -0700 (PDT)
From:      Tom <tom@uniserve.com>
To:        Leo Papandreou <leo@talcom.net>
Cc:        stable@FreeBSD.ORG
Subject:   Re: determining ecc errors on freebsd-stable
Message-ID:  <Pine.BSF.3.96.980629223112.1069B-100000@shell.uniserve.ca>
In-Reply-To: <19980629184220.15472@supersex.com>

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On Mon, 29 Jun 1998, Leo Papandreou wrote:

> On Mon, Jun 29, 1998 at 08:42:31AM -0700, Tom wrote:
> > 
> >   Summary:
> > 
> > - ECC is MUCH better than non-ECC
> 
> Will ECC on the cache trap RAM errors even if the RAM doesnt
> have ECC?

  No.  ECC on cache only protects the data that has made it the cache.

  Hopefully your internal bus between cache and CPU also support ECC!
Basically all data paths need protection to cover all the bases.

Tom


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