From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Ornati <ornati-dbx96nzIXN7OeuqD6ShaSA@public.gmane.org>
Subject: Re: [re] libata: blacklist NCQ on Seagate Barracuda ST380817AS
Date: Tue, 3 Mar 2009 20:50:34 +0100
Message-ID: <20090303205034.6fa9a5d5@fastwebnet.it>
References: <49AAB796.1010709@fisher-privat.net>
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Return-path: <kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
In-Reply-To: <49AAB796.1010709-M18mAb7Tlt0yCq4wW13eYl6hYfS7NtTn@public.gmane.org>
Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
List-ID: <kernel-testers.vger.kernel.org>
Content-Type: text/plain; charset="us-ascii"
To: Alexey Fisher <bug-track-M18mAb7Tlt0yCq4wW13eYl6hYfS7NtTn@public.gmane.org>
Cc: Kernel Testers List <kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Tejun Heo <htejun-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Jeff Garzik <jeff-o2qLIJkoznsdnm+yROfE0A@public.gmane.org>

On Sun, 01 Mar 2009 17:28:06 +0100
Alexey Fisher <bug-track-M18mAb7Tlt0yCq4wW13eYl6hYfS7NtTn@public.gmane.org> wrote:

> Commit da6f0ec2d54acf545e784363aa5bad0dafc5ffa8
> libata: blacklist NCQ on Seagate Barracuda ST380817AS
> 
> I tested Seagate Barracuda ST380817AS on my system without the blacklist 
>   entry on system with ext4 fs and it seems to work. Two days with 
> normal load, tar, kvm, torrent... i can't reproduce the error described 
> in this commit.
> 
> I use board with ICH10R south bridge, AHCI mode.

In my case it was happening _only_ with barriers enabled (like ext3 mounted with
"barrier=1") or with XFS (that enables barriers by default).

Does it survives an untar with barriers?

-- 
	Paolo Ornati
	Linux 2.6.29-rc6-00216-g778ef1e on x86_64