On Fri, Oct 01, 2004 at 10:18:26AM +0100, sigsegv@rambler.ru wrote:
> trap type 0x34:pc=100aaac npc=100aab0 pstate=44580006<PRIV,IE>
> kernel trap 34:mem address not aligned
> Stopped in pid 9248.1 (sh) at netbsd:pseg_get+0x3c:ldxa [%o2+%g0] 20, %o2

This looks like the same pmap corruption described in PR 24126.
I think the pseg_get call is operating on a freed or overwritten map.

One of these days we should better find the cause...

Martin