linux-kernel - Re: spurious completions during NCQ?

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Message-Id: <200706150951.58586.max@nucleus.it>
Date:	Fri, 15 Jun 2007 09:51:57 +0200
From:	Massimiliano Hofer <max@...leus.it>
To:	linux-kernel@...r.kernel.org
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Florin Iucha <florin@...ha.net>, Tejun Heo <htejun@...il.com>,
	Robert Hancock <hancockr@...w.ca>
Subject: Re: spurious completions during NCQ?

On Friday 8 June 2007, Alan Cox wrote:

> > 	Model Number:       HITACHI HTS541680J9SA00
> > 	Serial Number:      SB******I57L4A
>
> This one is already blacklisted in the windows drivers.

I have the same problem with this drive (shipped with a Thinkpad Z61m):

        Model Number:       HITACHI HTS541612J9SA00
        Firmware Revision:  SBDIC7JP

It reported several dozen spurious completions over a few days, but I can't 
find any corruption. Is it really dangerous? I understand this clearly is a 
firmware bug, but I'm not sure how to interpret the drive behavior.
I can perform any test you like, if you find it useful.

-- 
Saluti,
   Massimiliano Hofer
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