linux-kernel - Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS

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Date:	Sun, 30 Sep 2007 15:29:08 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Paolo Ornati <ornati@...twebnet.it>
Cc:	Tejun Heo <htejun@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS

On Sun, 30 Sep 2007 16:05:48 +0200
Paolo Ornati <ornati@...twebnet.it> wrote:

> Hi, I think you forgot to blacklist this one  :)
> 
> --
> Seagate Barracuda ST380817AS has troubles with NCQ. For example,
> unpacking a tarball on an XFS filesystem gives this:
> 
> ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen
> ata1.00: cmd 61/40:00:29:a3:98/00:00:00:00:00/40 tag 0 cdb 0x0 data 32768 out
>          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)

What makes you sure that is an NCQ problem ?
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