Date: Sat, 29 Sep 2007 02:35:10 -0700 (PDT)
Message-Id: <20070929.023510.112596666.davem@davemloft.net>
To: laurent.riffard@free.fr
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
       netdev@vger.kernel.org
Subject: Re: 2.6.23-rc[68]-mm: network hangs
From: David Miller <davem@davemloft.net>
In-Reply-To: <46FE193E.60200@free.fr>
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	<20070929013106.4f84320d.akpm@linux-foundation.org>
	<46FE193E.60200@free.fr>
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From: Laurent Riffard <laurent.riffard@free.fr>
Date: Sat, 29 Sep 2007 11:22:06 +0200

> Could a router problem prevent "ping 127.0.0.1" from working ?

Two things that are new and could cause these problems:

1) We dynamically allocate the loopback device now.

2) We have the network namespace stuff.

Another change in this area is that we do routing cache
garbage collection from a workqueue instead of a timer
but that was a pretty straightforward transformation so
it is not high on my list of "suspects".
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