From: "J. Bruce Fields" Subject: Re: Unable to mount with udp and vers=4 screws up uid/gid Date: Tue, 15 Jun 2010 10:55:29 -0400 Message-ID: <20100615145529.GB17437@fieldses.org> References: <0AD72BA9-0C2D-45C7-9F80-24E407832938@samad.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "linux-nfs@vger.kernel.org" To: Alex Samad Return-path: Received: from fieldses.org ([174.143.236.118]:50425 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753413Ab0FOOz3 (ORCPT ); Tue, 15 Jun 2010 10:55:29 -0400 In-Reply-To: <0AD72BA9-0C2D-45C7-9F80-24E407832938-SGFoFqf0RKf0CCvOHzKKcA@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Mon, Jun 14, 2010 at 08:34:06PM +1000, Alex Samad wrote: > >> > >> Hi >> >> I am having some problem with nfs-kernel on a debian amd64 (sid) i am >> using version (1:1.2.2-1). >> >> when I do a tcpdump on my nfs machine and do a mount -o vers=4,udp >> nfs:/exports/video /exports/video/ it fails >> >> >> mount -o vers=3,udp nfs:/exports/video /exports/video/ >> mount.nfs: mount to NFS server 'nfs:/exports/video' failed: timed out, >> giving up I'm confused; which are you using, v3 or v4? >> and with tcpdump, I see the request from from the client and I see the >> reply ok from the nfs machine, but it seem like the nfs packet doesn't >> make it to the wire, machines on the same network doesn't see the >> packet. >> >> on the nfs server I have a bridge interface br0 => eth0 eth1 eth2 eth3 >> vde0 >> >> on vde0 I have attached virtualbox 3.2.4, and when I look on the vde >> switch with tcpdump I don't see the reply packet. >> >> I have done some limited testing for udp and it seems to be working, >> traced dns packets >> >> I can mount tcp, but if I user vers4 i get wierd gid uid numbers I thought you said above that you *couldn't* mount v4? Apologies, I may just be sleep-deprived, but could you take just a *single* problem and describe it carefully from start to finish? >> ls -l >> drwxrwsr-x 2 4294967294 4294967294 4.1k Oct 25 2009 Funnies Probably an idmapping problem: - check that the domain in /etc/idmapd.conf is set to the same thing on client and server. - check that users have the same names on the client and on the server. --b. >> >> >> >> rpcinfo -p >> program vers proto port >> 100000 2 tcp 111 portmapper >> 100024 1 udp 32765 status >> 100024 1 tcp 32765 status >> 100021 1 udp 32768 nlockmgr >> 100021 3 udp 32768 nlockmgr >> 100021 4 udp 32768 nlockmgr >> 100021 1 tcp 32768 nlockmgr >> 100021 3 tcp 32768 nlockmgr >> 100021 4 tcp 32768 nlockmgr >> 100003 2 tcp 2049 nfs >> 100003 3 tcp 2049 nfs >> 100003 4 tcp 2049 nfs >> 100227 2 tcp 2049 >> 100227 3 tcp 2049 >> 100003 2 udp 2049 nfs >> 100003 3 udp 2049 nfs >> 100003 4 udp 2049 nfs >> 100227 2 udp 2049 >> 100227 3 udp 2049 >> 100005 1 udp 32767 mountd >> 100005 1 tcp 32767 mountd >> 100005 2 udp 32767 mountd >> 100005 2 tcp 32767 mountd >> 100005 3 udp 32767 mountd >> 100005 3 tcp 32767 mountd >> >> on nfs restart >> >> Jun 13 22:05:20 max kernel: [21723.836493] svc: failed to register >> lockdv1 RPC service (errno 97). >> Jun 13 22:05:20 max kernel: [21723.837490] NFSD: Using >> /var/lib/nfs/v4recovery as the NFSv4 state recovery directory >> Jun 13 22:05:20 max kernel: [21723.837507] NFSD: starting 90-second >> grace period >> >> >> tcpdump on nfs machine of mount -o vers=4,udp nfs:/exports/video >> /exports/video/ >> >> tcpdump -pni br0 host 192.168.10.221 and not port 22 >> tcpdump: verbose output suppressed, use -v or -vv for full protocol >> decode >> listening on br0, link-type EN10MB (Ethernet), capture size 65535 >> bytes >> 22:09:12.565697 IP 192.168.10.221.30209 > 192.168.11.10.53: 52743+ A? >> nfs.hme1.samad.com.au. (39) >> 22:09:12.565891 IP 192.168.11.10.53 > 192.168.10.221.30209: 52743* >> 2/2/3 CNAME max.lan1.hme1.samad.com.au., A 192.168.11.10 (182) >> 22:09:12.567227 IP 192.168.10.221.35835 > 192.168.11.10.53: 59898+ A? >> nfs.hme1.samad.com.au. (39) >> 22:09:12.567369 IP 192.168.11.10.53 > 192.168.10.221.35835: 59898* >> 2/2/3 CNAME max.lan1.hme1.samad.com.au., A 192.168.11.10 (182) >> 22:09:12.568676 IP 192.168.10.221.243695162 > 192.168.11.10.2049: 40 >> null >> 22:09:12.568726 IP 192.168.11.10.2049 > 192.168.10.221.243695162: >> reply ok 24 null <<<<<<<<<<<<< this is missing on the client .... >> 22:09:13.668091 IP 192.168.10.221.243695162 > 192.168.11.10.2049: 40 >> null >> 22:09:13.668158 IP 192.168.11.10.2049 > 192.168.10.221.243695162: >> reply ok 24 null >> 22:09:15.867266 IP 192.168.10.221.243695162 > 192.168.11.10.2049: 40 >> null >> 22:09:15.867345 IP 192.168.11.10.2049 > 192.168.10.221.243695162: >> reply ok 24 null >> 22:09:17.680551 IP 192.168.10.221.58336 > 192.168.11.10.25826: UDP, >> length 917 >> >> >> Help :) > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html