> There _are_ a lot of spots where rcvif is used, but they all
> seem to check to see if it's NULL .... so maybe a scan through all the
> mbufs to NULL out rcvif might be sufficient.

well, a scan with
	for (m = <first mbuf>; m != NULL; m = <next mbuf>) {
		if (m->m_pkthdr.rcvif == dying_if)
			m->m_pkthdr.rcvif = NULL;
	}

.. would do the trick without being an excessively large hammer.

					- Bill