From: Jeff Garzik <jeff@garzik.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: akpm@osdl.org, linux-ide@vger.kernel.org, Mark Lord <liml@rtr.ca>,
Albert Lee <albertcc@tw.ibm.com>
Subject: Re: [PATCH] libata: Add a horkage entry for DRQ mishandling (atapi tapes)
Date: Thu, 20 Sep 2007 17:04:10 -0400 [thread overview]
Message-ID: <46F2E04A.2000201@garzik.org> (raw)
In-Reply-To: <20070920152751.6b707705@the-village.bc.nu>
Alan Cox wrote:
> This will allow us to handle the tape drive problems Mark Lord reported
>
> Signed-off-by: Alan Cox <alan@redhat.com>
According to information I have received, some ATA (and possibly ATAPI?)
devices intentionally return some data in these cases. In the case of
certain ATA devices, this returned data permits inspection of the
incorrected data.
I dunno about ATAPI devices, but it sounds like returning data here may
be an unspecified but known behavior.
As such, it sounds like this warrants some core changes and not simply
as a horkage bit?
Jeff
next prev parent reply other threads:[~2007-09-20 21:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-20 14:27 [PATCH] libata: Add a horkage entry for DRQ mishandling (atapi tapes) Alan Cox
2007-09-20 21:04 ` Jeff Garzik [this message]
2007-09-20 21:42 ` Alan Cox
2007-09-22 0:33 ` Mark Lord
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