NetBSD can't seem to reboot my PC.

It just hangs at the Rebooting... message.

AMD 486DX4/99, Opti chipset motherboard, American Megatrends BIOS, dated
1994, no keyboard connected.

--- snip

NetBSD 1.2C (BEORN) #1: Tue Feb 25 23:56:18 EST 1997
    dfraser@beorn.mentasm.com:/usr/src/sys/arch/i386/compile/BEORN
cpu0: Intel 486DX (486-class)
real mem  = 16384000
avail mem = 14200832
using 225 buffers containing 921600 bytes of memory
mainbus0 (root)
isa0 at mainbus0
aha0 at isa0 port 0x330-0x333 irq 12 drq 5
: model AHA-1542CF, firmware 0.1
aha0: unlocking mailbox interface
aha0: async, parity
scsibus0 at aha0: 8 targets
st0 at scsibus0 targ 4 lun 0: <EXABYTE, EXB-8200, 263H> SCSI1 1/sequential removable
st0: rogue, density code 0x0, variable blocks, write-enabled
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
com2 at isa0 port 0x3e8-0x3ef irq 5: ns8250 or ns16450, no fifo
lpt0 at isa0 port 0x378-0x37b irq 7
wdc0 at isa0 port 0x1f0-0x1f7 irq 14
wd0 at wdc0 drive 0: <SAMSUNG PLS-31274A>
wd0: 1213MB, 2466 cyl, 16 head, 63 sec, 512 bytes/sec
wd0: using 16-sector 16-bit pio transfers, lba addressing
ed0 at isa0 port 0x280-0x29f iomem 0xd8000-0xdbfff irq 9
ed0: address 00:20:35:96:0d:4f, type WD8013EBT (16-bit)
ed1 at isa0 port 0x300-0x31f irq 10
ed1: address 00:40:33:22:21:01, type NE2000 (16-bit)
npx0 at isa0 port 0xf0-0xff: using exception 16
pcprobe: reset error 1
pc0 at isa0 port 0x60-0x6f irq 1: color
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
biomask 5040 netmask 5640 ttymask 56fa
boot device: wd0
root on wd0a swap on wd0b
root file system type: ffs

--
Dan J. Fraser -- dfraser@mother.com 
http://www.mother.com/~dfraser/
IRC Nick: Optic   Finger me for PGP public key 
Anytime things appear to be going better, you've overlooked something.