From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Subject: Re: kernel 2.6.3 hdparm : HDIO_SET_DMA failed: Operation not permitted
Date: Fri, 5 Mar 2004 18:26:16 +0100
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To: =?iso-8859-15?q?Fran=E7ois=20Chenais?= <francois@chenais.net>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org

On Friday 05 of March 2004 18:00, Fran=E7ois Chenais wrote:
> Hello,

Hi,

> Since I use kernel 2.6.3, my disk has very low performance
> If I do nothing during about 30 sec, the system takes about 3 sec bef=
ore
> reaction because the disk seems awakened.
>
> So I asked around me how to tune it using hdparm but
> i have the following errors when setting on dma (logs bellow).
>
> Some persons around me have the same feeling of lowest performances.
>
>
> Perhaps my kernel .config has some bad values because I have no
> experience in disk tuning (see attached file).
>
> I use
>    - debian sid on a NEC VERSA L320 laptop with a 'home built' kernel=
=2E
>    - preemptive mode
>    - ACPI

CONFIG_BLK_DEV_PIIX is not set in your .config and due to the fact
that NEC VERSA L320 has Intel IDE chipset you need to set it to 'y'.

Regards,
Bartlomiej