netdev - Bridged networking panics

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Date:	Thu, 28 Jun 2012 15:57:49 +0200
From:	Massimo Cetra <ctrix+debianbugs@...ynet.it>
To:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Bridged networking panics

Hi all,

i'm attaching 3 panics of a 3.2.X kernel.
The panics were obtained with a 3.2.20 from debian testing and from a 
vanilla compile of 3.2.21.

Those panics have been already posted some months ago [1] but are not fixed.

The problems seems related to bridged networking.
Whenever there is a bridged aliased interface (like br0:1 br0:2 etcc), 
the server will panic after some time. The more the network load, the 
shortest the uptime.
Removing (ifconfig br0:1 down) or adding back an interface seems to help 
the panic to appear.

Any more hints ?

MC

[1] for example http://comments.gmane.org/gmane.linux.network/226912

View attachment "3.2.20.2-1.txt" of type "text/plain" (16034 bytes)

View attachment "3.2.20.2-2.txt" of type "text/plain" (17032 bytes)

View attachment "3.2.21-1.txt" of type "text/plain" (23789 bytes)