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