neighbor ospf bird crash after local configure

[Martin Kraus]

hello. 
  I've managed to crash two remote bird instances on two remote routers by running 
configure on a local bird instance. they are in the same ospf area, but on
different interfaces. third remote router, which is connected to those two
interfaces, survived.

this is the interesting part in the log.


31-10-2009 19:40:08 <TRACE> ospf1: Scheduling RT calculation.
31-10-2009 19:40:08 <TRACE> ospf1: Starting routing table calculation
31-10-2009 19:40:08 <TRACE> ospf1: Starting routing table calculation for area 0.0.0.0
31-10-2009 19:40:08 <ERR> Router's parent has no next hop. (EN=212.71.177.59, PAR=212.71.177.41)
31-10-2009 19:40:08 <ERR> Router's parent has no next hop. (EN=212.71.177.42, PAR=212.71.177.41)
31-10-2009 19:40:08 <BUG> Did not find next hop interface for INSPF lsa!

does anyone now what might have happened?

thanks
mk