netdev - Re: NULL pointer dereference panic in stable (2.6.33.2), amd64

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Message-Id: <201004151211.28315.nuclearcat@nuclearcat.com>
Date:	Thu, 15 Apr 2010 12:11:28 +0300
From:	Denys Fedorysychenko <nuclearcat@...learcat.com>
To:	David Miller <davem@...emloft.net>
Cc:	eric.dumazet@...il.com, krkumar2@...ibm.com, netdev@...r.kernel.org
Subject: Re: NULL pointer dereference panic in stable (2.6.33.2), amd64

Btw i have application using tun.

On Thursday 15 April 2010 12:06:19 David Miller wrote:
> From: Eric Dumazet <eric.dumazet@...il.com>
> 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()
> method.
> 
> Such a scheme could help with this problem too.
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