netdev - Kernel consistently panicing on br_parse_ip

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Date:	Mon, 14 May 2012 14:37:22 +0200
From:	Massimo Cetra <ctrix+debianbugs@...ynet.it>
To:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Kernel consistently panicing on br_parse_ip_options

Hello,

I had already filed similar panics a month ago.
Today i upgraded to 3.2.16 and nothing seems to be changed (and i don't 
see anything related in .17).

The server (a Dell R410 with a couple of bnx2 ethernet cards) has two 
bridges onboard.

Each bridge is connected to a different switch and has 2 uses:
- one bridge is connecting an internal network and the KVM hosts that 
run on the same machine
- one bridge connects the server to the public network along with 
another bunch of kvm servers whose interfaces bridges

The bug can be easily triggered adding or removing (with heartbeat) a 
virtual address (br0:1, for example) .

Is there any known fix or patch ?

Thanks
Massimo

View attachment "panic1.txt" of type "text/plain" (23913 bytes)