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Date:      Sun, 25 Jan 2004 13:09:43 -0600 (CST)
From:      Mike Silbersack <silby@silby.com>
To:        Sam Smith <S@mSmith.net>
Cc:        Robert Watson <rwatson@freebsd.org>
Subject:   Re: XL driver checksum producing corrupted but checksum-correct packets
Message-ID:  <20040125130453.E873@odysseus.silby.com>
In-Reply-To: <Pine.BSO.4.58.0401242104080.13755@sebastian.foriru.co.uk>
References:  <Pine.NEB.3.96L.1040124133352.62871C-100000@fledge.watson.org> <Pine.BSO.4.58.0401242104080.13755@sebastian.foriru.co.uk>

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On Sat, 24 Jan 2004, Sam Smith wrote:

> The thread on the OpenBSD list now contains a patch which
> seems to fix the problem (for me, on OpenBSD, shifting data
> by both NFS and ftp doing md5 checksums on the files at both
> ends). Although it doesn't seem to turn off hardware
> checksums (which is what I think it should do).
>
> Regards
> Sam

Turning off hardware checksumming is exactly what that patch does.  This
doesn't add any new information to the discussion, unfortunately.

You don't happen to have the same type of motherboard chipset Matt does,
do you?  We could be barking up the wrong branch of a tree...

Mike "Silby" Silbersack



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