Subject: RE: NetBSD 1.0b SCSI problem
To: NetBSD-Amiga development <>
From: Michael Kofod <>
List: amiga-dev
Date: 08/29/1994 14:18:57
> Hi Michael !

> I'm running NetBSD on an similar setup than yours - with the same
> experiences.
> This problem is related to the non-functional atzsc.c (the driver
> for the A2091).
> The default setup tries to allocate a DMA bounce buffer in Z2 memory
> (if available) or Chip mem, but there must be something wrong
> with the DMA routines.

Hmm.. Is anybody working on fixing this?

> If you do a binpatch -s _sbic_no_dma=1 your kernel
> should work (it does on my machine).

Thanks I'll try that, just a same DMA will not work.. It worked fine in
my old 0.9a #744 kernel..

> The disk accesses will eat up all CPU time but it'll work.
> (My setup: A4000/040, A2091, RetinaZ3).

Hmm.. Maybe I should have a look at some source files..