At 10:43 AM 11/15/99 , Manuel Bouyer wrote:
>On Mon, Nov 15, 1999 at 08:15:41AM -0800, Matt Thomas wrote:
> > I noticed that the promise driver doesn't work when the device is in dma mode.
> > 
> > wd2: transfer error, downgrading to DMA mode 2
> > wd2(pciide2:1:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
> > wd2e: DMA error reading fsbn 9558208 of 9558208-9558223 (wd2 bn 29718208; cn 29482 tn 5 sn 37), retrying
> > pciide2:1:0: lost interrupt
> >          type: ata
> >          c_bcount: 8192
> >          c_skip: 0
> > pciide2:1:0: Bus-Master DMA error: missing interrupt, status=0x1
> > wd2: transfer error, downgrading to PIO mode 4
> > wd2(pciide2:1:0): using PIO mode 4
>
>Other peoples are using it on alpha in DMA mode. Did you check cables, etc ?

i'm using the udma cables that came with promise66 card(s).  note that udma mode works
until it errors out.  plain dma mode does not.  try forcing a drive to dma mode 2
and see what happens.

Not that jason's drive is using udma mode and i'm just using dma mode 2.
-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Cupertino, CA             Disclaimer: I avow all knowledge of this message