Date: Wed, 31 Oct 2007 12:49:08 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: Daniel Drake <dsd@gentoo.org>, linux list <linux-kernel@vger.kernel.org>,
       linux-ide@vger.kernel.org
Subject: Re: "Fix ATAPI transfer lengths" causes CD writing regression
Message-ID: <20071031124908.19de7833@the-village.bc.nu>
In-Reply-To: <20071031115754.GK5059@kernel.dk>
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	<20071031115754.GK5059@kernel.dk>
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> > Would need to double check the SCSI specificatons to be sure but I think
> > you are asking for less data than the drive wishes to provide. You
> > aren't allowed to do that with ATA.
> 
> ide-cd handles this by throwing the excess away, which I think is the
> sane way to do this.

It also fails for some cases because the controller snoops the length
information in the packet command.

Alan
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