From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: Broken commit: [NETFILTER]: ipt_REJECT: remove largely
 duplicate route_reverse function
Date: Tue, 28 Nov 2006 21:04:16 -0800 (PST)
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From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 29 Nov 2006 15:56:57 +1100

> David Miller <davem@davemloft.net> wrote:
> > 
> > Longer term this is really messy, we should handle this some
> > other way.
> 
> Definitely.  I'm not sure whether 48 is enough even for recursive
> tunnels.  This should really just be a hint.  It's OK to spend a
> bit of time reallocating skb's if it's too small, but it's not OK
> to die.

The recursive tunnel case is handled by the PMTU reductions
in the route, isn't it?