linux-kernel - Re: PATCH: Hitachi disk quirk

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Date:	Tue, 4 Dec 2007 13:31:21 +0100
From:	Lukas Hejtmanek <xhejtman@....muni.cz>
To:	Michael Tokarev <mjt@....msk.ru>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: PATCH: Hitachi disk quirk

On Tue, Dec 04, 2007 at 02:48:27PM +0300, Michael Tokarev wrote:
> Which problems, exactly?

it is spurious completitions and I saw that because of that the drives are
blacklisted. Moreover, the same drive is already blacklisted but with
different firmware. 
 
> Note that recent massive "NCQ horkage" isn't necessary due to drives fault.
> Search for "spurious completions during NCQ" for recent discussions
> (many of them).
> 
> > --- a/drivers/ata/libata-core.c	2007-12-04 11:08:20.000000000 +0100
> > +++ b/drivers/ata/libata-core.c	2007-12-04 11:09:23.000000000 +0100
> >  	{ "Hitachi HTS541616J9SA00", "SB4OC70P", ATA_HORKAGE_NONCQ, },
> > +	{ "HITACHI HTS541616J9SA00", "SB4IC7UP", ATA_HORKAGE_NONCQ, },
> >  	{ "Hitachi HTS542525K9SA00", "BBFOC31P", ATA_HORKAGE_NONCQ, },
> 
> /mjt

-- 
Lukáš Hejtmánek
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