Re: 2.5.39: hdparm: HDIO_SET_DMA failed: Operation not permitted

From: Jens Axboe (axboe@suse.de)
Date: Tue Oct 01 2002 - 09:49:06 EST

On Tue, Oct 01 2002, Olaf Dietsche wrote:
> Olaf Dietsche <olaf.dietsche--list.linux-kernel@exmail.de> writes:
>
> > with 2.5.39 I get the following error (2.5.40/www.kernel.org is
> > unavailable at the moment):
> >
> > # hdparm -d 1 /dev/hda/0
> >
> > /dev/hda/0:
> > setting using_dma to 1 (on)
> > HDIO_SET_DMA failed: Operation not permitted
> > using_dma = 0 (off)
>
> I forgot to add dmesg output:

[snip]

looks like you forgot to enable via support 

-- 
Jens Axboe

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