netdev - Re: Deadlock, L2TP over IP are not working, 3.4.1

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Message-ID: <CAA7+ByWEZDqzZhzH0FZoapqfUrujUrxyjwp6qb1SSfWBTZ=4AA@mail.gmail.com>
Date:	Sun, 10 Jun 2012 20:14:05 +0800
From:	Hong zhi guo <honkiko@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>, davem@...emloft.net
Cc:	Denys Fedoryshchenko <denys@...p.net.lb>,
	Benjamin LaHaise <bcrl@...ck.org>,
	Francois Romieu <romieu@...zoreil.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: Deadlock, L2TP over IP are not working, 3.4.1

Is there any conclusion about the problem?  Will bh_lock_sock_nested
fix the lockdep violation?

On Sat, Jun 9, 2012 at 12:04 AM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> On Fri, 2012-06-08 at 18:56 +0300, Denys Fedoryshchenko wrote:
>
>> Right now i am routing around 700Mbps over there, and noticed some
>> problem with pskb_expand_head,
>> but that's separate question i will ask, if i will not be able to sort
>> it out by myself.
>>
>
> Before spending too much time on this, make sure you use a kernel
> including commit 617c8c11236 ( skb: avoid unnecessary reallocations in
> __skb_cow )
>
>
>
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-- 
best regards
hong zhi guo
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