linux-kernel - Re: Quick question about libata and hdparm

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Message-ID: <20090501091804.GB29466@ime.usp.br>
Date:	Fri, 1 May 2009 06:18:04 -0300
From:	Rogério Brito <rbrito@...rs.sf.net>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Jeff Garzik <jeff@...zik.org>,
	Michael Tokarev <mjt@....msk.ru>, Mark Lord <lkml@....ca>,
	linux-kernel@...r.kernel.org
Subject: Re: Quick question about libata and hdparm

Hi, Bart and other people.

On Apr 24 2009, Rogério Brito wrote:
> On 4/23/09, Bartlomiej Zolnierkiewicz <bzolnier@...il.com> wrote:
> > You can try booting with "libata.force=1.00:mwdma2" kernel paramater
> > to force use of "regular" MWDMA2 transfer mode instead of UDMA ones
> > so we are sure that the issue is specific to pata_pdc202xx_old +
> > UDMA.
> 
> This *did* work. I see no other error messages, while using multword
> dma. So I think that this serves for us to rule out some unknown
> variables.

Is there anything that I can do right now? Just to remember, the
original IDE driver works without any problems, but I would like to
migrate everything to libata (and many distributions are already using
libata by default, even with IDE devices).


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@...ckenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org
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