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Message-ID: <20071030053307.GA1045@1wt.eu>
Date:	Tue, 30 Oct 2007 06:33:07 +0100
From:	Willy Tarreau <w@....eu>
To:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
Cc:	Wijnand Rietman <wijnand.rietman@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: CONFIG_IDEDMA_AUTO & 2.4.32 & hdparm -d1

On Mon, Oct 29, 2007 at 05:45:52PM -0400, Lennart Sorensen wrote:
> On Mon, Oct 29, 2007 at 09:52:35PM +0100, Wijnand Rietman wrote:
> > Thanks Lens for the suggestion!
> > 
> > Unfortunately this option doesn't work either. When I pass the "nodma"
> > paramater to the kernel, it boots with DMA disabled (like it should),
> > but doesn't allow DMA to be enabled anymore with hdparm.
> 
> Hmm, I was pretty sure I had the ability to turn it on after the fact
> before.  Perhaps I was wrong.  That would be silly.  There has to be
> some option to do what you want.

I too had to completely disable the config option with some CF which
caused long timeouts at boot time. I don't remember having been able
to re-enable anything afterwards (including other hard disks).

Willy

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