linux-kernel - Re: [REGRESSION] NFS is creating a hidden port (left over from xs

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Message-ID: <20150619205024.0ad093f8@gandalf.local.home>
Date:	Fri, 19 Jun 2015 20:50:24 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Trond Myklebust <trond.myklebust@...marydata.com>
Cc:	Jeff Layton <jlayton@...chiereds.net>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Anna Schumaker <anna.schumaker@...app.com>,
	Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
	Linux Network Devel Mailing List <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Bruce James Fields <bfields@...ldses.org>
Subject: Re: [REGRESSION] NFS is creating a hidden port (left over from
 xs_bind() )

On Fri, 19 Jun 2015 20:37:45 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:


> > Is it causing any other damage than the rkhunter warning you reported?
> 
> Well, not that I know of. Are you sure that this port will be
> reconnected, and is not just a leak. Not sure if you could waste more
> ports this way with connections to other machines. I only have my
> wife's box connect to this server. This server is actually a client to
> my other boxes.
> 
> Although the rkhunter warning is the only thing that triggers, I still
> would think this is a stable fix, especially if the port is leaked and
> not taken again.

I did some experiments. If I unmount the directories from my wife's
machine and remount them, the port that was hidden is fully closed.
Maybe it's not that big of a deal after all.

-- Steve
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