linux-kernel - Re: 2.6.29-rc libata sff 32bit PIO regression

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Message-ID: <4977A6E5.6080506@ru.mvista.com>
Date:	Thu, 22 Jan 2009 01:51:17 +0300
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Mikael Pettersson <mikpe@...uu.se>,
	Hugh Dickins <hugh@...itas.com>,
	Jeff Garzik <jgarzik@...hat.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.29-rc libata sff 32bit PIO regression

Hello.

Alan Cox wrote:

>> Hugh Dickins writes:
>>  > I've a Dell Precision 670 here (four-year-old EM64T Xeon with ata_piix)
>>  > which doesn't like your commit 871af1210f13966ab911ed2166e4ab2ce775b99d
>>  > libata: Add 32bit PIO support.  Full dmesg (and .config) attached, but
>>  > here's an extract showing the start of the error messages on ata2:
>>     
>
> Cool - so we need two different 32bit PIO methods - at least according to
> the docs for the AMD we should use entirely 32bit I/O there. Fun fun
>   

   Could you refer me to the exact AMD doc that requires that?

> Alan
MBR, Sergei



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