issues with netbsd-8 and simh-vax

[matthew green <mrg%eterna.com.au@localhost>]

hi folks.


i can't boot -8 in simh using the microvax3900 emulation.  at
the end of kernel loading, it gets into a stray interrupt loop:

>> NetBSD/vax boot [1.12 (Thu Mar  8 03:36:42 UTC 2018)] <<
>> Press any key to abort autoboot 4
getdisklabel: no disk label
nfs_open: must mount first.
open netbsd.vax: No such file or directory
> boot netbsd
getdisklabel: no disk label
nfs_open: must mount first.
3462484+211660 [232576+219195stray interrupt: vector 0x18, ipl 31
stray interrupt: vector 0x18, ipl 31
stray interrupt: vector 0x18, ipl 31
[ ... forever ... ]

this same setup works with netbsd-7.  any ideas?


.mrg.