From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff Garzik <jeff@garzik.org>
Subject: Re: sata_nv ADMA controller lockup investigation
Date: Thu, 15 Feb 2007 05:46:15 -0500
Message-ID: <45D439F7.3030604@garzik.org>
References: <45D3E1FF.3080606@shaw.ca>
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To: Robert Hancock <hancockr@shaw.ca>
Cc: linux-kernel <linux-kernel@vger.kernel.org>, linux-ide@vger.kernel.org, Allen Martin <AMartin@nvidia.com>, nas@arctrix.com, B.Steinbrink@gmx.de

Robert Hancock wrote:
> It's curious that only the post-cache-flush command is having issues,
> and normal NCQ operation seems fine. Maybe it's related to that tag 0
> being reused repeatedly?


If you take cache flush out of the equation, what happens when NCQ is 
enabled with a queue depth of 1 (to reproduce tag-0-used-repeatedly 
condition)?

	Jeff