netdev - Re: Kernel panic eth2 mirred redirect to ifb0

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Message-ID: <AANLkTimMY3D_HssWb=Sw=b3tsxEKACk2QUzFzi-HaC-J@mail.gmail.com>
Date:	Mon, 20 Dec 2010 00:22:39 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Paweł Staszewski <pstaszewski@...are.pl>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	Linux Network Development list <netdev@...r.kernel.org>
Subject: Re: Kernel panic eth2 mirred redirect to ifb0

2010/12/20 Paweł Staszewski <pstaszewski@...are.pl>:
> W dniu 2010-12-19 16:43, Eric Dumazet pisze:
>>
>> Unfortunately, we miss the start of panic messages. Could you try to get
>> them ?
>>
> In attached images
>

It seems the kernel panic at:

        if (skb_shared(skb))
                BUG();

in pskb_expand_head().

It maybe related to my patch:
http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=210d6de78c5d7c785fc532556cea340e517955e1

You can try to revert it and test again.

However, the bug is a misuse of pskb_expand_head().

-- 
Regards,
Changli Gao(xiaosuo@...il.com)
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