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Date:	Thu, 15 Apr 2010 02:06:19 -0700 (PDT)
From:	David Miller <>
Subject: Re: NULL pointer dereference panic in stable (, amd64

From: Eric Dumazet <>
Date: Thu, 15 Apr 2010 10:51:47 +0200

> In any case, I think there is a fundamental problem with this sk
> caching. Because one packet can travel in many stacked devices before
> hitting the wire.
> (bonding, vlan, ethernet) for example.
> Socket cache is meaningfull for one level only...

We were talking the other day about that 'tun' change to orphan the
SKB on TX, and I mentioned the possibility of just doing this in some
generic location before we give the packet to the device ->xmit()

Such a scheme could help with this problem too.
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