DEC DEGPA Gigabit and OpenBSD-current - DMA problems

[Sven Dietrich <spock@sled.gsfc.nasa.gov>]

As a follow-up to an earlier message, here is an update:

- DEC DEGPA-SA card (1000BaseSX)
- Booted successfully in a PII-300/128MB RAM with OpenBSD-current (#779)
 - machine has one hard drive, one CD-ROM, one on each IDE channel.

- Tried to replicate this on a PII-400/128MB RAM with
OpenBSD-current (#788). Kernel panic: can not map DMA
  - machine has three hard drives, and one CD-ROM, all using DMA
transfers
  - Brought over #779 to the PII-400. Still panic.
  - Removed IDE channel 1 (CD-ROM and one drive) -> boot success

Any first thoughts?

Sven