arp code broken after BETA3 9.0 ?

[Slono Slono]

After upgrade procedure from BETA3 to RC1 ive get similar problem like http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/162267
Looks like problem outside the MPD code which have not changed a long time. Ive browse SVN history and has found out recent 
changes in sys/netinet/in.c code which could affect occurrence kernel panic in RC1.

http://svnweb.freebsd.org/base/head/sys/netinet/in.c?r1=226120&r2=226119&pathrev=226120
http://svnweb.freebsd.org/base/head/sys/netinet/in.c?r1=225946&r2=225945&pathrev=225946

Somebody else has met this problem? Thanks.