[Simh] NetBSD 5.1 on MicoVAX 3900 boot error

[Mark Pizzolato]

On Monday, April 17, 2017 at 10:28 AM, petercpm at sdf.org wrote:
> I'm getting a Segv error on boot of NetBSD 5.1 on the VAX emulator of SIMH v
> 4.0 Beta. Install went fine w/o any problems. I'm attaching the session file and
> here's the netbsd-boot file:
> 
> ............................................................
> load -r ..\..\..\..\bin\ka655x.bin
> set cpu 64m
> ; SET CPU IDLE=NETBSD
> set tto 7b
> ; AT DZ 8888
> set rq0 ra92
> at rq0 netbsd.dsk
> at xq0 eth0
> boot cpu
> 
> ; At the VMB prompt, type boot dua0:
> ............................................................

I vaguely recall that there was at least one NetBSD version that was just broken and hadn't been tested on any VAX (real or simulated) before it was 'released'.

I suggest you:
 1) try the same with simh 3.9
2) try a later NetBSD release.

If you're seeing a problem which persists across several NetBSD releases, and/or exists in the 4.0 code but not the 3.9 code, please open an issue at https://github.com/simh/simh/issues

Have Fun.

- Mark Pizzolato