From: Trond Myklebust Subject: Re: klibc's nfsmount failure with 2.6.27.21, while 2.6.25.20 was fine Date: Wed, 15 Apr 2009 08:38:34 -0400 Message-ID: <1239799114.5177.4.camel@heimdal.trondhjem.org> References: <200904151250.49372.hpj@urpla.net> Mime-Version: 1.0 Content-Type: text/plain Cc: linux-nfs@vger.kernel.org To: Hans-Peter Jansen Return-path: Received: from mail-out2.uio.no ([129.240.10.58]:38304 "EHLO mail-out2.uio.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753286AbZDOMij (ORCPT ); Wed, 15 Apr 2009 08:38:39 -0400 In-Reply-To: <200904151250.49372.hpj-2x7n3sizJbFeoWH0uzbU5w@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Wed, 2009-04-15 at 12:50 +0200, Hans-Peter Jansen wrote: > Hi, > > I suffer from a problem, where my diskless environment doesn't work anymore > after upgrading the server from openSUSE 11.0 (2.6.25.20) to openSUSE 11.1 > (2.6.27.21). > > The diskless environment gets set up with an customized initrd via pxelinux. > The initrd uses klibc's nfsmount, and I've tried both protocols: udp and > tcp. It's not an iptables issue, since I can mount these directories from > other (fully booted) systems just fine. > > Using the debug version of klibc's nfsmount prints these messages: > short read: 0 < 28 > Port for 100003/3[udp]: 0 > short read: 0 < 28 > Port for 100005/3[udp]: 0 > NFS params: > server = xxx.xx.xx.xx, path = "/roroot", version = 3, proto = udp, > mount_port = 627, nfs_port = 2049, flags = 00010282, ^^^^^^^^^^^^^^^^ > rsize = 0, wsize = 0, timeo = 7, retrans = 3, > acreg (min,max) = (3,60), acdir (min,max) = (30,60), > soft = 0, intr = 1, posix = 0, nocto = 0, noac = 0 > > tcpdumping the communication shows, that for whatever reason, the client > sends the mount request from source port 798 to destination port 627, but > the server doesn't listen on 627: The question is why is klibc specifying mount port = 627? Trond