misc/152047: TUN\TAP under jail with vimage crashes system

[Anton]

>Number:         152047
>Category:       misc
>Synopsis:       TUN\TAP under jail with vimage crashes system
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 08 12:20:10 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Anton
>Release:        8.1-STABLE
>Organization:
>Environment:
FreeBSD panzer 8.1-STABLE FreeBSD 8.1-STABLE #0: Fri Nov  5 17:52:01 MSK 2010     root at panzer:/usr/obj/usr/src/sys/ACORE  amd64
>Description:
I'm trying to use client openvpn under jail with vimage. After connect openvpn try to create tap or tun interface and in that moment server halts. If i manually create tap interface it is ok, and mostly works (pings going in both sides) until i restart openvpn. In moment of stopping openvpn server halts.
>How-To-Repeat:
Create new jail with:
jail -c vnet path="/path/to/jail" name="jail_name" persist

Install world and openvpn in it.
Configure openvpn as client.
Start openvpn.
>Fix:


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