From: Tejun Heo <htejun@gmail.com>
To: Bart Hartgers <bart.hartgers@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 1/1] Delay on vt6420 when starting ATAPI DMA write
Date: Tue, 16 Feb 2010 17:34:27 +0900 [thread overview]
Message-ID: <4B7A5893.9010809@gmail.com> (raw)
In-Reply-To: <20100214120819.947320201@gmail.com>
On 02/14/2010 09:04 PM, Bart Hartgers wrote:
> When writing a disc on certain lite-on dvd-writers (also rebadged
> as optiarc/LG/...) connected to a vt6420, the ATAPI CDB ends
> up in the datastream and on the disc, causing silent corruption.
> Delaying between sending the CDB and starting DMA seems to
> prevent this.
>
> I do not know if there are burners that do not suffer from
> this, but the patch should be safe for those as well.
>
> There are many reports of this issue, but AFAICT no solution was
> found before. For example:
> http://lkml.indiana.edu/hypermail/linux/kernel/0802.3/0561.html
>
> Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Thanks!
--
tejun
prev parent reply other threads:[~2010-02-16 8:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-14 12:04 [patch 0/1] [PATCH v2] sata_via: Delay on vt6420 when starting ATAPI DMA write Bart Hartgers
2010-02-14 12:04 ` [patch 1/1] " Bart Hartgers
2010-02-16 8:34 ` Tejun Heo [this message]
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