>
>> You have a SPARCstation-2, no? At least on OpenBSD, which suffers from
>> the same affliction, it works fine on SS2 and IPX, only SS1 and SS1+
>> loose (haven't tried IPC). I guess there is some small difference in
>> the MMU or something. (Even SS1 and SS1+ work fine as long as you have
>> max 24 megs memory).
>
>Umm, I don't know what this is all about, but my SS1+ has 32 megs and
>it works fine, AFAIK.  Running 1.2.
 

pmegs != megs

PMEG = Page Map Entry Group

Hardware SRAM thing that contains groups of page map entries.
Or, software copy of same. I haven't looked at the netbsd
sparc port in that detail.