On Tue, 2026-03-10 05:24:24 -0700, Jason Thorpe <thorpej%me.com@localhost> wrote: > > On Mar 10, 2026, at 1:55 AM, Jan-Benedict Glaw <jbglaw%lug-owl.de@localhost> wrote: > > 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? Exactly that one. (Dropped you an email about that privately a few days ago, that contains some more details and an Open-SIMH config for the vaxstation4000m60 simulator.) But unfortunately I'm not yet there to really have a look at it, still fixing other issues with my overall test setup. MfG, JBG --
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