From: Wu Fengguang Subject: Re: mount.nfs: access denied by server Date: Fri, 21 Aug 2009 09:27:00 +0800 Message-ID: <20090821012700.GA9937@localhost> References: <20090820071315.GA14765@localhost> <1250773349.5352.23.camel@heimdal.trondhjem.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "linux-nfs@vger.kernel.org" , LKML To: Trond Myklebust Return-path: Received: from mga14.intel.com ([143.182.124.37]:22668 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751485AbZHUB1B (ORCPT ); Thu, 20 Aug 2009 21:27:01 -0400 In-Reply-To: <1250773349.5352.23.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Thu, Aug 20, 2009 at 09:02:29PM +0800, Trond Myklebust wrote: > On Thu, 2009-08-20 at 15:13 +0800, Wu Fengguang wrote: > > Hi, > > > > After upgrading NFS client kernel to latest linux-next, NFS mount > > failed: > > > > # mount -t nfs pxe:/cc /cc > > mount.nfs: access denied by server while mounting pxe:/cc > > > > # uname -a > > Linux hp 2.6.31-rc6-next-20090818 #61 SMP Thu Aug 20 14:46:10 CST 2009 x86_64 GNU/Linux > > > > However server log says OK: > > > > Aug 20 15:02:09 wu-t61 mountd[4599]: authenticated mount request from 192.168.11.6:973 for /cc (/cc) > > Aug 20 15:02:09 wu-t61 mountd[4599]: authenticated unmount request from 192.168.11.6:974 for /cc (/cc) > > > > However-2: nfsroot can be mounted at boot time. Server kernel has always been 2.6.30. > > > > Any ideas? > > > > Thanks, > > Fengguang > > Can you try again after enabling mount debugging on the NFS client? > > echo 512 > /proc/sys/sunrpc/nfs_debug I used 1024 and found the mount failed here in nfs_walk_authlist(): dfprintk(MOUNT, "NFS: server does not support requested auth flavor\ n"); nfs_umount(request); Thanks, Fengguang