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Date:	Wed, 04 Apr 2007 16:07:56 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	hadi@...erus.ca
CC:	Denys <denys@...p.net.lb>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	netdev@...r.kernel.org
Subject: Re: one more... iproute commands lockup whole system

jamal wrote:
> On Wed, 2007-04-04 at 15:36 +0200, Patrick McHardy wrote:
> 
>>It would be interesting to find out what the problem is exactly.
>>The configuration itself looks harmless, so I'm guessing its
>>rather a deadlock than a loop.
> 
> 
> We know it is a deadlock. 
> If you redirect the first time queue lock for eth0 will be held, before
> it is released if you do another redirect, it will again be heading
> towards eth0 and it will deadlock on grabbing the queue lock.


He only used a single redirect to eth0.5, but its probably due to the
fact that the VLAN hard_start_xmit function transmits on eth0 again.
How about adding something like ifb's ri_tasklet to act_mirred?

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