Re: panic at boot on 4/200

[Romain Dolbeau <romain%dolbeau.org@localhost>]

Le jeu. 8 janv. 2026 à 05:40, foo bar <tokenalt%gmail.com@localhost> a écrit :
> > > So after doing many test boots I've found netbsd 1.5.x will boot on it
> > > but everything else, including sunos 4.1.1, will fail in various ways.
(...)
> But if it is the cache presumably
> that would also affect 1.5.x so I don't know.

When you say "everything else", did that include trying NetBSD-2.0 to
narrow down the issue ?
From the release note, 2.0 introduced SMP on SPARC, which /may/ have
involved reworking the cache support a bit (for e.g. coherency).
(Shot in the dark, and  4.1.1 was also pre-SMP support...).

Alternatively to support your hypothesis, maybe it's possible to run a
newer NetBSD kernel patched and recompiled to not enable the cache?

Cordially,

-- 
Romain Dolbeau