Re: 2.4.21 ServerWorks DMA Bugs

From: Tomas Szepe (szepe@pinerecords.com)
Date: Sun Jul 06 2003 - 06:10:15 EST


> [alan@lxorguk.ukuu.org.uk]
>
> On Sul, 2003-07-06 at 10:06, Tomas Szepe wrote:
> > It doesn't all right. :)
> >
> > On a G3 Compaq Proliant, all drives come up in PIO by default;
> > DMA needs to be enabled by "/usr/sbin/hdparm -d1 -X69 /dev/hdX".
>
> This is because your compaq BIOS decided to set it up this way.

Also note that when the '-X' switch is omitted (i.e. one only issues
"/usr/sbin/hdparm -d1 /dev/hdX"), the driver sets up a mode that doesn't
work and then quickly falls back to PIO.
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