From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: UDP Out 0f Sequence
Date: Wed, 20 Sep 2006 20:51:16 -0700 (PDT)
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To: rajib.majumder@credit-suisse.com
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From: "Majumder, Rajib" <rajib.majumder@credit-suisse.com>
Date: Thu, 21 Sep 2006 10:50:17 +0800

> Does this mean if we have 2 hosts connected back to back (there's no
> network device in between), sequence is guaranteed even in UDP?

Not true.  Even for back to back systems SMP can cause packets
to be delivered out of order even locally within the system
on receive.