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From: Jeff Garzik <jeff@garzik.org>
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
Subject: Re: sata_nv ADMA controller lockup investigation
Date: Thu, 15 Feb 2007 05:46:15 -0500	[thread overview]
Message-ID: <45D439F7.3030604@garzik.org> (raw)
In-Reply-To: <45D3E1FF.3080606@shaw.ca>

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



  reply	other threads:[~2007-02-15 10:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-15  4:30 Robert Hancock
2007-02-15 10:46 ` Jeff Garzik [this message]
2007-02-16  4:52   ` Robert Hancock
2007-03-20 22:01     ` Neil Schemenauer
2007-03-20 23:24       ` Robert Hancock

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