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

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Message-ID: <20070930175207.5bfa89a8@localhost>
Date:	Sun, 30 Sep 2007 17:52:07 +0200
From:	Paolo Ornati <ornati@...twebnet.it>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Tejun Heo <htejun@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org
Subject: Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS

On Sun, 30 Sep 2007 11:43:38 -0400
Jeff Garzik <jeff@...zik.org> wrote:

> > it isn't supported here:
> > sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA  
> 
> Did you actually try my suggestion?

Yes ("libata.fua=1" is ok I think, or it should just be "libata.fua"?):
...
[    0.000000] Kernel command line: root=/dev/sda6 ro vga=0x305 libata.fua=1
...
[  285.004166] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen
...


> 
> That message is normal, because libata defaults to FUA==off.

-- 
	Paolo Ornati
	Linux 2.6.23-rc8-ga64314e6 on x86_64
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