I just got venti and fossil (from sources, not a CD) working on a
laptop.  I did not see any invalid address trap while debugging.

It took me an embarassingly long time to realize that network
addresses like

> tcp!$venti!venti

do not work.  Fossil and venti are run without /lib/ndb so they
require numeric ports.

Just in case it helps, I am including my boot, flproto, and
venti.conf.  They are rough.

-dave