Re: 2.1.84: no IDE DMA
Jim Bray (jb@elentari.cs.wcu.edu)
Tue, 3 Feb 1998 23:26:08 -0500 (EST)
I noticed a thread running on this. I have recently been working with a
Pentium Pro with I believe the PIIX PCI [I don't know the machine inside
out; just helping as220.org get it going]. I also noticed that I am not
getting DMA, and hdparm -d 1 gets an "operation not permitted" error.
DMA works with the old 2.0.33 that was on the thing, but is gone in
2.1.8(2|4). Machine seems to have an ancient AMI bios: copyright '92,
1.00.3.cg0 or somesuch. Seems to sort of delay quite a while at the point
in the boot just before the IDE finds the drives, even with the ones not
in use zapped out with hd{foo}=none.
--Jim <a href="http://as220.org/jb"> My Page</a>