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Date:	Mon, 08 Jan 2007 11:23:59 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Pablo Sebastian Greco <lkml@...agreco.com.ar>
CC:	linux-kernel@...r.kernel.org
Subject: Re: SATA problems

Pablo Sebastian Greco wrote:
> After an uptime of  13:34 under heavy load and no errors, I'm pretty
> sure your patch is correct. Is there a way to backport this to 2.6.18.x?

I forgot this (even though I implemented it) but you can turn off NCQ by
doing the following.

# echo 1 > /sys/block/sdX/device/queue_depth

Can you put the seagate drive under load to verify that it's the samsung
drive's problem not the controller's?

> Just an off topic question, does anyone know why I get so uneven IRQ
> handling on 2.6.19-20 and almost perfect on 2.6.20-rc2-mm1?

I dunno.  You have much better chance of getting a useful answer by
asking it on a separate thread with proper subject line.  People usualyl
screen threads by subject.  There are just too many message in LKML for
anyone to follow all the message.

Thanks.

-- 
tejun
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