linux-kernel - Re: PATCH: Hitachi disk quirk

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Message-ID: <47553E8B.303@msgid.tls.msk.ru>
Date:	Tue, 04 Dec 2007 14:48:27 +0300
From:	Michael Tokarev <mjt@....msk.ru>
To:	Lukas Hejtmanek <xhejtman@....muni.cz>
CC:	linux-kernel@...r.kernel.org
Subject: Re: PATCH: Hitachi disk quirk

Lukas Hejtmanek wrote:
> Hello,
> 
> the following patch should be applied into 2.6.24-rc3 as the mentioned Hitachi
> disk has also problem with NCQ.

Which problems, exactly?

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
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