kern/106400: [pf] fatal trap 12 at restart of PF with ALTQ if ng0 device has detached

[mlaier at FreeBSD.org]

Synopsis: [pf] fatal trap 12 at restart of PF with ALTQ if ng0 device has detached

State-Changed-From-To: open->feedback
State-Changed-By: mlaier
State-Changed-When: Sat Mar 29 00:59:25 UTC 2008
State-Changed-Why: 
MFC patches need testing, thanks.

http://www.freebsd.org/cgi/query-pr.cgi?pr=106400