IPv6 and CARP crashes boxes

[Pete French]

> Thanks for the feedback Pete, what are you running ?
>
> We're on 8-STABLE here.

Yup, same here - aactually running a very recent STABLE now,
but for most of this year it's been on one from January. The
one running on the firewalls is from May 7th, and that works
beautifully.

> I've got some spare time on my hands actually, I'm gonna try some more
> today, both on an ipv6-only carp, then on a v4+v6.

Ok, let us know how you get on - the config here is very simple, reproduced
below for your viewing pleasure ;) This is from the 'active' firewall:

	ifconfig_em0="inet 10.32.10.1/16"
	ipv6_ifconfig_em0="2a02:1658:1:2:a32f::1/64"
	ifconfig_em1="inet 178.250.73.196/27"
	ipv6_ifconfig_em1="2a02:1658:1:1::1:2/64"

	ifconfig_carp0="vhid 10 pass xxxxyyyy 10.32.10.6/16"
	ifconfig_carp1="vhid 20 pass xxxxyyyy 178.250.73.198/27"
	ipv6_ifconfig_carp2="vhid 30 pass xxxxyyyy 2a02:1658:1:2:a32f::6/64"
	ipv6_ifconfig_carp3="vhid 40 pass xxxxyyyy 2a02:1658:1:1::1:1/64"

-pete.