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Date:	Mon, 18 Jun 2007 22:04:41 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	linas@...tin.ibm.com (Linas Vepstas)
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [BUG] ide dma_timer_expiry, then hard lockup

> So what do you suggest? (I could buy an alternate ide controller,
> and hope that goes away, or just buy a different hard drive. But
> that's beside the point).

The DMA timeout itself could be all sorts of things - crap driver, crap
hardware, PCI bus contention, noise, problem disk, phase of the moon.

> I can prepare a patch, but only with a lot of guidance. I can test 
> & debug, I'm highly motivated just right now ... 

If you've got a nice repeatable problem please try using the libata
driver. That handles the error paths differently and doesn't try a FIFO
drain which might matter in this case I guess.

Alan
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