OpenBSD and DMA

["Tony Lambiris" <apl1@keene.edu>]

I recently tried installing OpenBSD 2.5 (release) on a 500 meg HDD (IDE) 
on an i386, and halfway through the base25.tgz download, the computer 
rebooted.  I am almost positive it has to do with DMA, and how the HDD 
can't handle it.  I had the same problem with Slackware 3.6 a while ago, 
because it was using kernel 2.0.36, which has DMA enabled by default 
(plus the timeout messages clued me in).  My question:
is there a way to disable HDD DMA before loading the kernel, or maybe 
another way?  I have UDMA disabled in my BIOS for all hard disks as 
well.  Also, there's an option for IDE PIO, and I'm not sure what this 
does.  It's set on AUTO as of right now, should I set it to something 
else?  Thanks for all your help.

----------------
Tony Lambiris
apl1@keene.edu
Linux/*BSD Guru
x7916
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"If you can't beat your computer at chess, try kickboxing."