Re: current won't boot on real 4000/60

[Jason Thorpe <thorpej%me.com@localhost>]

> On Mar 10, 2026, at 1:55 AM, Jan-Benedict Glaw <jbglaw%lug-owl.de@localhost> wrote:
> 
> Hi!
> 
> Just a short heads-up: I've been doing a lot of rework on my testing
> setup lately and noticed that current VAX install ISOs won't boot on a
> real 4000/60. Further testing: It still boots in SIMH-vax
> (= microvax3900), but also fails with SIMH-vaxstation4000m60 and a
> usual 80 MB configuration. "Failing" means to lock up right after
> printing out the machine type. (SIMH-vaxstation4000m60 will print two
> additional lines about the installed memory and lock thereafter.)
> Tracked it down to "extent(9) -> vmem(9)" patch from November last
> year (reverting helps), but we don't have a fix yet.

The one in machdep.c?

-- thorpej