From: Trond Myklebust Subject: Re: Error mounting FC8 NFS server with 2.6.31-rc3 NFSv4 client. Date: Tue, 21 Jul 2009 08:15:27 -0400 Message-ID: <1248178527.5222.0.camel@heimdal.trondhjem.org> References: <4A64EB1F.4000602@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain Cc: linux-kernel , linux-nfs@vger.kernel.org To: Ben Greear Return-path: Received: from mail-out2.uio.no ([129.240.10.58]:57775 "EHLO mail-out2.uio.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754590AbZGUMPc (ORCPT ); Tue, 21 Jul 2009 08:15:32 -0400 In-Reply-To: <4A64EB1F.4000602@candelatech.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Mon, 2009-07-20 at 15:09 -0700, Ben Greear wrote: > I tried mounting an NFS server running FC8 (2.6.26.8-57.fc8 kernel) > using a Fedora 11 system running an un-patched 2.6.31-rc3 64-bit kernel. > > I am not sure at all that the FC8 system is set up to handle NFSv4 properly, but > I was expecting some sort of useful error if that was the case. > > Instead, I get this continually spewing to /var/log/messages: > > Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 > Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 > Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 > Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 > ... > > On the file-server, I see this: > Jul 19 04:47:59 fs2 kernel: nfs4_cb: server 192.168.100.196 not responding, timed out > Jul 19 04:49:29 fs2 kernel: nfs4_cb: server 192.168.100.196 not responding, timed out > Jul 19 04:49:29 fs2 ntpd[2585]: kernel time sync status change 0001 > Jul 19 04:50:59 fs2 kernel: nfs4_cb: server 192.168.100.196 not responding, timed out > > > I added some debug patches (on top of my other patches, including those to nfs) > and got some debug info: > > It seems that nfs4_init_clientid is returning -2, and establish_clid is returning > -2. This causes reclaim lease logic to fail, and that causes state manager to print > out the error repeatedly. -2 means ENOENT. > > > As far as I can tell, the mount never completes, staying in D state and filling up > logs (I deleted a 16GB /var/log/messages file a few minutes ago!) > > The mount command I'm trying is: > mount -t nfs4 192.168.100.6:/export/tmp /mnt/lf/nfs4-0 > > > My kernel config is found here: > http://www.candelatech.com/oss/i7_config.txt > What does /var/lib/nfs/v4recovery look like on the server? Trond