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From: Zwane Mwaikambo <zwane@linux.realnet.co.sz>
To: linux-kernel@vger.kernel.org
Subject: Re: Lockup in IDE code
Date: Sat, 10 Nov 2001 15:22:42 +0200
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Mark Zealey - 2001-11-09 12:40:41 PST
>Well, obviously your drive or mobo doesn't support DMA. I noticed that all 
>the other devices (hd[acd]) were in PIO mode, why not try setting dma mode 
>on one of them. Most CD's I've come across don't do DMA very well, I believe 
>that the DMA is mostly only useful for DVD's, where you need a high transfer 
>rate to watch a movie.

He probably doesn't have anything on the primary master and seconday 
master/slaves. And UDMA has worked very well for most CDROM drives i've come 
across, but then as always YMMV.

Cheers,
	Zwane
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