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Date: Mon, 4 Jun 2012 17:31:54 +0300
From: Michael Pounov <misho@aitbg.com>
To: freebsd-current@FreeBSD.org, freebsd-net@FreeBSD.org
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Subject: bpf kernel crash
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Kernel crash when you wish to change interface name from vlan0 to other name

It seems to be in arrival/departure events.

1) when I set up vlan0 and change name to mgmt and after that destroy mgmt.
 kernel crash in bpfdetach() at line 2495. where it tries to find interface structure.
2) when I setup vlan0, change name to mgmt and set ip address. After few seconds 
 kernel crash in vlan_transmit() at line 1029. where it tries to push mbufs to bpf interface, but it is NULL.

-- 
Michael Pounov <misho@elwix.org>