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Subject: Re: Western Digital hard drive and DMA
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Horst von Brand <vonbrand@inf.utfsm.cl>
Cc: jbradford@dial.pipex.com, adamjaskie@yahoo.com,
       linux-kernel@vger.kernel.org
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Date: 09 Sep 2002 22:08:14 +0100
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On Mon, 2002-09-09 at 03:19, Horst von Brand wrote:
> Use DMA for a week or so, and / is mangled beyond recognition (seems to
> happen with read-only access too). Chipset is intel (sr440bx board, PIIX4E
> IDE). Have heard of similar problems with DMA on WD drives, but got no
> details.

Old old (we are talking 340MB era here) WD had some DMA problems in a
few cases. We know about it and blacklist such drives. I'm aware of a
few "UDMA doesnt work" type incompatibilities with WD drives but not
with PIIX and always UDMA crc errors

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