> yesterday, I updated my DS5000/200 from the 1.2 distribution to the march
> snapshot, using the kernel binary from the same directory.  Since then,
> I keep getting lots of messages like
>
> /netbsd: asc: DMA_OUT, fifo resid 16, len 2908, flags 0x32
>
> when doing disk-intensive things like unpacking tar files.  I cannot see any-
> thing that actually goes wrong, so I guess it's just something like a debug
> message...

The debug messages REALLY hurt disk write performance.  Since around 1.2B
source code tree, the symptoms has been persisting.

I donno why the paticular if-branch is executed in these days, you can
retain original disk write performance by just commenting out the
debug statement.

	1. In a file "sys/dev/tc/asc.c", search the debug statement,
	2. And then rebuild the kernel.

Note; current set of NetBSD source code sys.tar.gz and include.tar.gz
does not have a paticular Makefile for the 0301 version of comp.tar.gz
(I have not tried the snapshot just released).

You need addtional flags;

	CFLAGS="-mno-abicalls -mno-half-pic"

when you compile kernel body (not genassym).

Tohru Nishimura
Nara Institute of Science and Technology