Diskless MicroVAX II boot crash in simh current

Hello port-vax,
Was trying to netboot a KA630 in simh (to troubleshoot my severe clock drift, which I am starting to suspect is due to a missing TOY clock battery (or perhaps the network.)  simh sources pulled on the 24th, but when boot tries to load the kernel it immediately crashes with stray interrupts:

MicroVAX II (KA630) simulator V4.0-0 Current        git commit id: ee34e295+uncommitted-changes
./rasterloopzero.ini-24> at xq eth4
%SIM-INFO: Eth: opened OS device \Device\NPF_{1DE511AE-7F45-4459-BDEF-722560611452} - NODOMAIN.NET
sim> boot


◄

KA630-A.V1.3

Performing normal system tests.

  5..4..3..

Tests completed.


>>> boot xqa0

  2..1..0..


>> NetBSD/vax boot [1.12 (Sun Nov  5 18:30:08 UTC 2023)] <<
>> Press any key to abort autoboot 5
Press '?' for help
> boot -s
Trying BOOTP
Using IP address: 10.9.10.24
myip:  (10.9.10.24)
root addr=10.9.10.192 path=/Data/Code/vax/NetBSD-10.0_RC1/rasterloop-10.0_RC1
stray interrupt: vector 0x18, ipl 31
stray interrupt: vector 0x18, ipl 31
stray interrupt: vector 0x18, ipl 31
...

simh config is as follows, with twiddled options commented out:

load -r ka630.bin
SET WTC TIME=STD
set cpu 16m
;set cpu idle=netbsd
;SET CPU CONHALT
att nvr rasterloopzero.nvr
SET XQ TYPE=DEQNA
;SET XQ TYPE=DELQA
SET XQ MAC=08-00-2B-04-AC-8F
;set xq poll=0
at xq eth4

Any suggestions?  Since my real KA630 boots fine with this config, should I follow-up with the simh team?

Thanks and kind regards,

    _____    
   | * * |   Josh Moyer (he/him) <[email protected]>
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