LAGG + VLAN + CARP Not supported?

[Ryan Masse]

root at nfs1:/home/rmasse # uname -a
FreeBSD nfs1 10.1-RELEASE FreeBSD 10.1-RELEASE #0 r274401: Tue Nov 11 
21:02:49 UTC 2014 
root at releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64

root at nfs1:/home/rmasse # ifconfig
bce0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=c01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
     ether 00:21:9b:a6:b0:4d
     nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
     media: Ethernet autoselect (1000baseT <full-duplex>)
     status: active
bce1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=c01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
     ether 00:21:9b:a6:b0:4d
     nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
     media: Ethernet autoselect (1000baseT <full-duplex>)
     status: active
bce2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=c01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
     ether 00:21:9b:a6:b0:4d
     nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
     media: Ethernet autoselect (1000baseT <full-duplex>)
     status: active
bce3: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=c01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
     ether 00:21:9b:a6:b0:4d
     nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
     media: Ethernet autoselect (1000baseT <full-duplex>)
     status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
     options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
     inet6 ::1 prefixlen 128
     inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5
     inet 127.0.0.1 netmask 0xff000000
     nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=c01bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
     ether 00:21:9b:a6:b0:4d
     nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
     media: Ethernet autoselect
     status: active
     laggproto lacp lagghash l2,l3,l4
     laggport: bce3 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
     laggport: bce2 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
     laggport: bce1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
     laggport: bce0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>

root at nfs1:/home/rmasse # ifconfig lagg0.2 create
root at nfs1:/home/rmasse # ifconfig lagg0.2 inet 10.254.0.3/24 vhid 1 pass 
test
ifconfig: SIOCGVH: Protocol not supported

I've tried every combination imaginable with the same result.  The 
mailing lists suggest that this should have been patched in v9?

Any ideas?