> 
> If my math is right, that's 3436KB used by the kernel, leaving 660KB
> available for a 4096KB system.  The 912KB of buffers being used by the
> kernel will be fewer with your 4MB vs. my 16MB system; I'd expect you'll
> get something a lot closer to 1MB of available memory with the TINY_KA41
> kernel.
> 
Some of the memory the kernel uses is linear to the amount of available
ram in the machine. I did run 1.5 something on a 2MB machine; but haven't
tried it with 1.6 (yet). This config file is the one I used. 
I don't have any 3100 available for test right now, feel free to try it.

-- Ragge

include         "arch/vax/conf/std.vax"

options         VAX410          # VS 2000
maxusers        4
options         KMEMSTATS
options         INET            # IP + ICMP + TCP + UDP

file-system     FFS

options         PIPE_SOCKETPAIR # smaller, but slower pipe(2)

config          netbsd root on ? type ?
mainbus0        at root
vsbus0          at mainbus0             # All VAXstations
le0             at vsbus0 csr 0x200e0000 # LANCE ethernet
si0             at vsbus0 csr 0x200c0080 # VS2000/3100 SCSI-ctlr
si1             at vsbus0 csr 0x200c0180 # VS2000/3100 SCSI-ctlr
hdc0            at vsbus0 csr 0x200c0000 # HDC9224 MFM/floppy ctlr
rd*             at hdc0 drive?          # RD5x disks
scsibus*        at si?
sd*             at scsibus? target? lun?

pseudo-device   loop    1
pseudo-device   pty                     # pseudo-terminals