From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] [Bug 16494] NFS client over TCP hangs due to packet
 loss
Date: Tue, 03 Aug 2010 01:21:44 -0700 (PDT)
Message-ID: <20100803.012144.267950450.davem@davemloft.net>
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From: "Andy Chittenden" <andyc.bluearc@gmail.com>
Date: Tue, 3 Aug 2010 09:14:31 +0100

> I don't know whether this patch is the correct fix or not but it enables the
> NFS client to recover.
> 
> Kernel version: 2.6.34.1 and 2.6.32.
> 
> Fixes <https://bugzilla.kernel.org/show_bug.cgi?id=16494>. It clears down
> any previous shutdown attempts so that reconnects on a socket that's been
> shutdown leave the socket in a usable state (otherwise tcp_sendmsg() returns
> -EPIPE).

If the SunRPC code wants to close a TCP socket then use it again,
it should disconnect by doing a connect() with sa_family == AF_UNSPEC