On Mon, 14 Feb 2000 19:32:22 +0900 
 Ken Nakata <nakata@sequent.com> wrote:

 > > > Does this mean that it is using DMA? I guess that I will try another hard
 > > > drive and see what happens.
 > > 
 > > Guess so. I would try "de-rating" to DMA mode 1, in the kernel config,
 > > to try and work around the bug. PIO mode 3, DMA mode 1 is plenty fast,
 > > if it works.
 > 
 > Hmm, this line here from dmesg:
 > 
 > > > wdc0 at isa0 port 0x1f0-0x1f7 irq 14
 > 
 > It's got no dma channel assigned.  Only an irq channel.  Even so, do you
 > still get DMA transfer?

Right now, the ISA "wdc" front-end does not support DMA.

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>