I just got a 3/50 for the right price (read free) and have
been experimenting with NetBSD on it.  I'm doing the normal netboot
thing (there are no local disks on it right now) and getting some
weird errors right after boot.  Complete boot log below for completeness.

	It does have a third party (Parity Systems) memory expansion
to run it up to 8 meg.  I believe this interfaces via an MMU and FPU
socket on the motherboard.  I'm wondering if it might be part of the
issue.

	Help welcome, I'm not on port-sun3, so please keep me in the
CC list.


Try1:

>> NetBSD netboot [$Revision: 1.7 $]
Using IP Address 209.249.106.101 = D1F96A65
net_open: client addr: 209.249.106.101
net_open: client name: sun3
net_open: subnet mask: 255.255.255.240
net_open: net gateway: 209.249.106.97
net_open: server addr: 209.249.106.100
net_open: server path: /projects/sun3-netbsd
netboot: oot: No such file or directory
filename? [netbsd]: 
netboot: loading netbsd
623456+26740+154808+[48828+54276]=0xddb50
Starting program at 0x4000
console is ttya
Copyright (c) 1996, 1997, 1998, 1999, 2000
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 1.5 (DISKLESS) #4: Tue Nov 28 13:01:36 EST 2000
    nathanw@foghorn-leghorn:/d/nbsd/src-1.5/src/sys/arch/sun3/compile/DISKLESS
Model: sun3 50
fpu: mc68881
total memory = 8192 KB
avail memory = 6520 KB
using 64 buffers containing 512 KB of memory
mainbus0 (root)
obio0 at mainbus0
zsc0 at obio0 addr 0x0 ipl 6: (softpri 3)
kbd0 at zsc0 channel 0
ms0 at zsc0 channel 1
zsc1 at obio0 addr 0x20000 ipl 6: (softpri 3)
zstty0 at zsc1 channel 0 (console i/o)
zstty1 at zsc1 channel 1
eeprom0 at obio0 addr 0x40000
clock0 at obio0 addr 0x60000 ipl 5
memerr0 at obio0 addr 0x80000 ipl 7: (Parity memory)
intreg0 at obio0 addr 0xa0000
le0 at obio0 addr 0x120000 ipl 3: address 08:00:20:01:be:fb
le0: 8 receive buffers, 2 transmit buffers
obmem0 at mainbus0
bwtwo0 at obmem0 addr 0x100000 (1152x900)
enabling interrupts
boot device: le0
root on le0
nfs_boot: trying RARP (and RPC/bootparam)
nfs_boot: client_addr=209.249.106.101 (RARP from 209.249.106.100)
nfs_boot: server_addr=209.249.106.100
nfs_boot: hostname=sun3
nfs_boot: gateway=209.249.106.97
nfs_boot: my_mask=255.255.255.240
root on ussrepulse.ufp.org:/projects/sun3-netbsd
/etc/rc.conf is not configured.  Multiuser boot aborted.
pid 10: kernel coprocessor exception
pid 10: kernel coprocessor exception
pid 8: kernel coprocessor exception
pid 0: kernel coprocessor exception

Try2:

>> NetBSD netboot [$Revision: 1.7 $]
Using IP Address 209.249.106.101 = D1F96A65
net_open: client addr: 209.249.106.101
net_open: client name: sun3
net_open: subnet mask: 255.255.255.240
net_open: net gateway: 209.249.106.97
net_open: server addr: 209.249.106.100
net_open: server path: /projects/sun3-netbsd
netboot: oot: No such file or directory
filename? [netbsd]: 
netboot: loading netbsd
623456+26740+154808+[48828+54276]=0xddb50
Starting program at 0x4000
console is ttya
Copyright (c) 1996, 1997, 1998, 1999, 2000
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 1.5 (DISKLESS) #4: Tue Nov 28 13:01:36 EST 2000
    nathanw@foghorn-leghorn:/d/nbsd/src-1.5/src/sys/arch/sun3/compile/DISKLESS
Model: sun3 50
fpu: mc68881
total memory = 8192 KB
avail memory = 6520 KB
using 64 buffers containing 512 KB of memory
mainbus0 (root)
obio0 at mainbus0
zsc0 at obio0 addr 0x0 ipl 6: (softpri 3)
kbd0 at zsc0 channel 0
ms0 at zsc0 channel 1
zsc1 at obio0 addr 0x20000 ipl 6: (softpri 3)
zstty0 at zsc1 channel 0 (console i/o)
zstty1 at zsc1 channel 1
eeprom0 at obio0 addr 0x40000
clock0 at obio0 addr 0x60000 ipl 5
memerr0 at obio0 addr 0x80000 ipl 7: (Parity memory)
intreg0 at obio0 addr 0xa0000
le0 at obio0 addr 0x120000 ipl 3: address 08:00:20:01:be:fb
le0: 8 receive buffers, 2 transmit buffers
obmem0 at mainbus0
bwtwo0 at obmem0 addr 0x100000 (1152x900)
enabling interrupts
boot device: le0
root on le0
nfs_boot: trying RARP (and RPC/bootparam)
nfs_boot: client_addr=209.249.106.101 (RARP from 209.249.106.100)
nfs_boot: server_addr=209.249.106.100
nfs_boot: hostname=sun3
nfs_boot: gateway=209.249.106.97
nfs_boot: my_mask=255.255.255.240
root on ussrepulse.ufp.org:/projects/sun3-netbsd
pid 2: kernel coprocessor exception
pid 3: kernel coprocessor exception
pid 4: kernel coprocessor exception
pid 5: kernel coprocessor exception
pid 2: kernel coprocessor exception
pid 8: kernel coprocessor exception
pid 0: kernel coprocessor exception
trap type=0x2, code=0x0, v=0x0
pid = 0, pc = 0E0046C8, ps = 2700, sfc = 1, dfc = 1
Registers:
             0        1        2        3        4        5        6        7
dreg: 00000001 0E0BD650 00000000 00000000 00000000 FFFFFFFC FFFFFFFF 00000000
areg: 0E0C034C 0EEEE000 0EEEE040 0EEB4AF0 0E0C2478 0E093AEC 0EEEDA70 0DFFF248

Kernel stack (0EEED99C):
EED99C: 0E08C7D0 0EEED9F4 00000080 00000000 00000000 00000000 FFFFFFFC FFFFFFFF
EED9BC: 00000000 0EEEE040 0EEB4AF0 0E0C2478 0E093AEC 00000000 0EEEDA70 00000000
EED9DC: 00000000 0EEEDA70 0E0040CA 00000002 00000000 00000000 00000001 0E0BD650
EED9FC: 00000000 00000000 00000000 FFFFFFFC FFFFFFFF 00000000 0E0C034C 0EEEE000
EEDA1C: 0EEEE040 0EEB4AF0 0E0C2478 0E093AEC 0EEEDA70 0DFFF248 00000000 27000E00
EEDA3C: 46C80010 0E012792 0EEB4AF0 00000000 00002704 00000000 0E05E43A 0EEB4AF0
EEDA5C: 00000000 0E1288C0 0E020D42 3A6B7D25 00002711 0EEEDA94 0E0122DE 0EEB4AF0
EEDA7C: 00000000 00000000 0E1288C0 0E05E43A 0E12CC00 0E12CDFE 0EEEDAC4 0E05E4B8
EEDA9C: 0E12CDFE 00000015 0E05E430 00000000 00000000 00002704 00000001 0E125A00
EEDABC: 0E12CC00 0E05E43A 0EEEDB10 0E05CC9A 0E1288C0 00002704 00000001 00000000
EEDADC: 3A6B7D25 FFFFFFFF 00000000 0E125A00 0E1288C0 0E12CC00 0E020D42 00000001
EEDAFC: 00000018 00000000 24BC0000 00000000 0E125800 0EEEDB88 0E05D376 0E1288C0
EEDB1C: 0E125800 00000004 0000000C 0000000C FFFFFFFC 0000C00C 0E125800 0EEEE314
EEDB3C: 0EED0000 0000001C FFFF0000 000C0000 00000000 000F0000 00302704 0E0C2970
EEDB5C: 0EEEE314 0EEE0E12 5A00B7D1 931D24BC 00000000 00000000 00180238 00002704
EEDB7C: FFFFFFFF 0000000F 0000000C 0EEEDC9C 0E0673A8 0EED0000 0E125800 00000003
panic: Illegal instruction
syncing disks... 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 giving up
Kernel rebooting...

Diagnostic Auto-boot in progress...
Invalid device = ''
>
-- 
Leo Bicknell - bicknell@ufp.org
Systems Engineer - Internetworking Engineer - CCIE 3440
Read TMBG List - tmbg-list-request@tmbg.org, www.tmbg.org