Re: 2.4.21 ServerWorks DMA Bugs

[Tomas Szepe]

> [[e-mail]]
> 
> 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.