assertion in lwkt_reltoken

[Francois Tigeot]

With a recent -2.7, I get this panic no more than 2 minutes after boot:

assertion: ref >= &td->td_toks_base && ref->tr_tok == tok in lwkt_reltoken

A core dump is available at this URL:
http://www.wolfpond.org/crash.dfly/

-- 
Francois Tigeot