linux-kernel - Re: [PATCH 1/1] pata_it821x: fix lost interrupt with atapi devices

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Message-ID: <46E5F508.8000600@garzik.org>
Date:	Mon, 10 Sep 2007 21:53:12 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Jeff Norden <jeff@...h.tntech.edu>
CC:	alan@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] pata_it821x: fix lost interrupt with atapi devices

Jeff Norden wrote:
>  From: Jeff Norden <jnorden@...h.tntech.edu>
> 
> Fix "lost" interrupt problem when using dma with CD/DVD drives in some
> configurations.  This problem can make installing linux from media
> impossible for distro's that have switched to libata-only configurations.
> 
> The simple fix is to eliminate the use of dma for reading drive status, etc,
> by checking the number of bytes to transferred.
> 
> This change will only affect the behavior of atapi devices, not disks.
> There is more info at http://bugzilla.redhat.com/show_bug.cgi?id=242229
> This patch is for 2.6.22.1
> 
> Signed-off-by: Jeff Norden <jnorden@...h.tntech.edu>

applied


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