From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steffen Klassert <steffen.klassert@secunet.com>
Subject: Re: [PATCH 2/5] ipv4: Kill ip_rt_frag_needed().
Date: Mon, 11 Jun 2012 13:42:56 +0200
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To: David Miller <davem@davemloft.net>
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On Mon, Jun 11, 2012 at 04:28:13AM -0700, David Miller wrote:
> From: David Miller <davem@davemloft.net>
> Date: Mon, 11 Jun 2012 04:20:24 -0700 (PDT)
> 
> > We need to find a way to implement this then, in such a way
> > that we have the route context used to send the ping packet
> > out.
> 
> The problem is RAW sockets right?  If so, then this is where the
> fix belongs.
> 

Hm, I've just tried with tracepath (udp) and I also don't see the
pmtu informations cached.

I still had no time to look deeper into the new inetpeer code,
I've just gave it a quick try. I'll try to find out what's going on.