From owner-freebsd-current@FreeBSD.ORG  Thu Jul 16 19:25:30 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 68F0D106566C;
	Thu, 16 Jul 2009 19:25:30 +0000 (UTC)
	(envelope-from rmacklem@uoguelph.ca)
Received: from esa-jnhn.mail.uoguelph.ca (esa-jnhn.mail.uoguelph.ca
	[131.104.91.44])
	by mx1.freebsd.org (Postfix) with ESMTP id 077898FC1A;
	Thu, 16 Jul 2009 19:25:29 +0000 (UTC)
	(envelope-from rmacklem@uoguelph.ca)
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: ApoEAO4bX0qDaFvK/2dsb2JhbADTIIQNBYFA
X-IronPort-AV: E=Sophos;i="4.42,412,1243828800"; d="scan'208";a="41465267"
Received: from fraser.cs.uoguelph.ca ([131.104.91.202])
	by esa-jnhn-pri.mail.uoguelph.ca with ESMTP; 16 Jul 2009 15:25:28 -0400
Received: from localhost (localhost.localdomain [127.0.0.1])
	by fraser.cs.uoguelph.ca (Postfix) with ESMTP id 6E36F109C2A3;
	Thu, 16 Jul 2009 15:25:28 -0400 (EDT)
X-Virus-Scanned: amavisd-new at fraser.cs.uoguelph.ca
Received: from fraser.cs.uoguelph.ca ([127.0.0.1])
	by localhost (fraser.cs.uoguelph.ca [127.0.0.1]) (amavisd-new,
	port 10024)
	with ESMTP id WKZMWQHFfavz; Thu, 16 Jul 2009 15:25:27 -0400 (EDT)
Received: from muncher.cs.uoguelph.ca (muncher.cs.uoguelph.ca [131.104.91.102])
	by fraser.cs.uoguelph.ca (Postfix) with ESMTP id D1DCE109C275;
	Thu, 16 Jul 2009 15:25:27 -0400 (EDT)
Received: from localhost (rmacklem@localhost)
	by muncher.cs.uoguelph.ca (8.11.7p3+Sun/8.11.6) with ESMTP id
	n6GJSQT13977; Thu, 16 Jul 2009 15:28:26 -0400 (EDT)
X-Authentication-Warning: muncher.cs.uoguelph.ca: rmacklem owned process doing
	-bs
Date: Thu, 16 Jul 2009 15:28:26 -0400 (EDT)
From: Rick Macklem <rmacklem@uoguelph.ca>
X-X-Sender: rmacklem@muncher.cs.uoguelph.ca
To: Anonymous <swell.k@gmail.com>
In-Reply-To: <861vogcyp4.fsf@gmail.com>
Message-ID: <Pine.GSO.4.63.0907161525040.13015@muncher.cs.uoguelph.ca>
References: <861vogcyp4.fsf@gmail.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: Rick Macklem <rmacklem@freebsd.org>, freebsd-current@freebsd.org
Subject: Re: [newnfs/client] -alldirs: listing files consumes too much memory
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 16 Jul 2009 19:25:30 -0000



On Thu, 16 Jul 2009, Anonymous wrote:

> Let's create 335 empty files in /blah and try to list them over nfsv3.
>
> # uname -vm
> FreeBSD 8.0-BETA1 #0: Sat Jul  4 03:55:14 UTC 2009     root@almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>
> # mkdir /blah
> # (while [ $((i+=1)) -le 334 ]; do : >/blah/foo_$i; done)
> # echo / -alldirs >/etc/exports
> # /etc/rc.d/nfsd onestart
> # mount -t newnfs -o nfsv3 0:/blah /mnt
>
>
> # : >/blah/foo_335
>
It actually just takes having foo_335 in the dir. to trigger it.

>
> Is this one known?
It is now;-). I reproduced it without difficultly, so it should be
straightforward to fix. (For the dir with foo_N up foo_335 in it,
readdir goes into a loop in the client.)

Thanks for finding it, rick