netdev - Re: Kernel consistently panicing on br_parse_ip

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Message-ID: <4FB62701.2040507@navynet.it>
Date:	Fri, 18 May 2012 12:40:01 +0200
From:	Massimo Cetra <mcetra@...ynet.it>
To:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
CC:	Eric Dumazet <eric.dumazet@...il.com>,
	David Miller <davem@...emloft.net>
Subject: Re: Kernel consistently panicing on br_parse_ip_options

On 14/05/2012 14:37, Massimo Cetra wrote:
> 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 ?

As an attachment you may find another panic that seems compatible with 
the previous one.
The crash seems consistent and reproduceable. Is there anyone worrying 
about this ?

Thanks
  Massimo


View attachment "panic2.txt" of type "text/plain" (14705 bytes)