Kernel Panic

# /sbin/ifconfig lagg0 create
# /sbin/ifconfig lagg0 laggproto loadbalance laggport dc0 laggport dc1 laggport dc2 up
# /sbin/ifconfig vlan0 create
# /sbin/ifconfig vlan1 create
# /sbin/ifconfig vlan2 create
# /sbin/ifconfig vlan3 create
# /sbin/ifconfig vlan4 create
# /sbin/ifconfig vlan0 inet xx.xx.xx.148 netmask 255.255.255.128 vlan 2 vlandev lagg0 up
# /sbin/ifconfig vlan1 inet 192.168.7.1 netmask 255.255.255.0 vlan 10 vlandev lagg0 up
# /sbin/ifconfig vlan2 inet 192.168.6.1 netmask 255.255.255.0 vlan 4 vlandev lagg0 up
# /sbin/ifconfig vlan3 vlan 5 vlandev lagg0 up
# /sbin/ifconfig vlan4 vlan 6 vlandev lagg0 up
# /sbin/ifconfig bridge0 addm vlan3 addm vlan4
# /sbin/ifconfig bridge0 inet 192.168.1.1 netmask 255.255.255.0
# /sbin/ifconfig bridge0 alias 192.168.1.13 netmask 255.255.255.0
# uname -a
FreeBSD SERVER.domain.com 7.0-STABLE FreeBSD 7.0-STABLE #2: Sun Oct 19 10:10:05 UTC 2008    root@SERVER.domain.com:/usr/obj/usr/src/sys/MYKERNEL.SMP  i386
# /sbin/ifconfig lagg0 destroy
KERNEL PANIC!