kern/132715: Panic when creating vlan's on lagg interface

[G.Def]

>Number:         132715
>Category:       kern
>Synopsis:       Panic when creating vlan's on lagg interface
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 17 01:20:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     G.Def
>Release:        8.0-CURRENT
>Organization:
>Environment:
FreeBSD test.w.env 8.0-CURRENT FreeBSD 8.0-CURRENT #0: Sat Jan 24 18:39:08 CET 2009     root at test.w.env:/usr/obj/usr/src/sys/CURRENT  amd64
>Description:
Command 'ifconfig' makes kernel panic when creating VLAN interface on lagg. Interface lagg created on Intel em interfaces.

>How-To-Repeat:
ifconfig lagg0 create
ifconfig vlan1 create
ifconfig lagg0 laggproto lacp laggport em0 laggport em1 10.0.0.1 netmask 255.255.255.0
ifconfig vlan1 inet 10.10.10.1 netmask 255.255.255.0 vlan 1 vlandev lagg0

>Fix:
none

>Release-Note:
>Audit-Trail:
>Unformatted: