linux-kernel - Re: [PATCH] ata: Disable NCQ for Crucial M225 brand SSDs

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Message-ID: <aacba7e1001270814s3ebdcc62i39d6ed0efeb194eb@mail.gmail.com>
Date:	Wed, 27 Jan 2010 21:44:51 +0530
From:	Vishal Rao <vishalrao@...il.com>
To:	Jarod Wilson <jarod@...sonet.com>
Cc:	David Rees <drees76@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>, jgarzik@...ox.com,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	trivial@...nel.org, stable@...nel.org
Subject: Re: [PATCH] ata: Disable NCQ for Crucial M225 brand SSDs

2010/1/27 Jarod Wilson <jarod@...sonet.com>:
> How to define a group gets... Messy. Just as a data point, my own
> Barefoot-based SSD, an OCZ Vertex, has no NCQ-related problems
> whatsoever, so far as I know. Its currently hooked to a Zotac ION
> board, which has ahci-driven sata controllers of some sort, was
> previously in a Dell Studio Hybrid, where it also worked just fine.

Thanks for data point. I'm personally hoping for other Crucial users
specifically.

Is NCQ enabled - if you grep dmesg for ata ?

The kernel already appears to blacklist (disable NCQ for) OCZ
SSD models with firmware version "02.10104".
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