From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Khalid Aziz <khalid@fc.hp.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Marcelo Tosatti <marcelo@conectiva.com.br>,
Andre Hedrick <andre@linux-ide.org>
Subject: Re: [PATCH] ide-scsi driver starts DMA too soon
Date: 02 Nov 2002 01:13:53 +0000 [thread overview]
Message-ID: <1036199633.14825.2.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <E187lOK-0003Jd-00@lyra.fc.hp.com>
On Fri, 2002-11-01 at 23:39, Khalid Aziz wrote:
> ide-scsi driver starts DMA as soon as it writes the ATAPI PACKET command
> in command register and before sending the ATAPI command. This will
> cause problems on many drives. Right way to do it is to start DMA after
> sending the ATAPI command. I am attaching a patch that fixes this. This
> patch will allow many more CD-RW drives to work reliably in DMA mode
> than do today.
>
> Marcelo, please apply.
Marcelo this is in 2.5, and 2.4-ac. Khalid is certainly correct although
making such a change in -rc rather than a pre does mean it wants extra
thought
next prev parent reply other threads:[~2002-11-02 0:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-01 23:39 Khalid Aziz
2002-11-02 1:13 ` Alan Cox [this message]
2002-11-06 12:27 ` Marcelo Tosatti
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