Return-Path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:40657 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752888Ab0KUMXf (ORCPT ); Sun, 21 Nov 2010 07:23:35 -0500 Date: Sun, 21 Nov 2010 21:23:31 +0900 Message-ID: Subject: [Q] I tried to mount nfs_server:/mnt volume, but It mounted another volume. From: Hiroyuki Sato To: linux-nfs@vger.kernel.org, linux-rdma@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Hello lists OS: CentOS 5.5 kernel: 2.6.36 rebuild myself. I'm trying to test NFS/RDMA. I tried to mount nfs_server:/mnt volume on on nfs_client but It mounted nfs_server:/nfstest volume note: /nfstest is tmpfs this is mount output tmpfs on /nfstest type tmpfs (rw,size=4g) /dev/sdb1 on /mnt type ext3 (rw) Is this bug?? NFS server config # ls -1 /mnt This_is_mnt_volume # ls -1 /nfstest This_is_nfstest_volume # cat /etc/exports /nfstest 192.168.100.0/255.255.255.0(fsid=0,rw,async,insecure,no_root_squash) /mnt 192.168.100.0/255.255.255.0(fsid=0,rw,async,insecure,no_root_squash) # modprobe svcrdma # /sbin/service nfs start # echo rdma 20049 > /proc/fs/nfsd/portlist Client Setting /sbin/modprobe xprtrdma /sbin/mount.rnfs 192.168.100.231:/mnt /mnt -i -o rdma,port=20049 # ls -1 /mnt This_is_nfstest_volume NFS Server log sysctl -w sunrpc.nfsd_debug=1023 Nov 21 20:47:37 dell1435 mountd[3575]: authenticated mount request from 192.168.100.232:766 for /mnt (/mnt) Nov 21 20:47:37 dell1435 mountd[3575]: /nfstest and /mnt have same filehandle for 192.168.100.0/255.255.255.0, using first Nov 21 20:48:55 dell1435 mountd[3575]: authenticated unmount request from 192.168.100.232:912 for /mnt (/mnt) Nov 21 20:48:55 dell1435 mountd[3575]: authenticated unmount request from 192.168.100.232:913 for /mnt (/mnt) Nov 21 20:49:00 dell1435 mountd[3575]: authenticated unmount request from 192.168.100.232:917 for /mnt (/mnt) Nov 21 20:49:16 dell1435 mountd[3575]: authenticated mount request from 192.168.100.232:865 for /mnt (/mnt) Nov 21 21:02:22 dell1435 mountd[3575]: authenticated unmount request from 192.168.100.232:955 for /mnt (/mnt) Nov 21 21:02:26 dell1435 mountd[3575]: authenticated mount request from 192.168.100.232:884 for /mnt (/mnt) Nov 21 21:02:26 dell1435 kernel: nfsd: exp_rootfh(/mnt [ffff88011f586740] 192.168.100.0/255.255.255.0:sdb1/2) -- Hiroyuki Sato