[gentoo-user] mount.nfs stale nfs handle

[Alexander Puchmayr]

Hi there,

After upgrading my server to latest stable release of gentoo, none of my 
clients is able to mount any nfs share from the server anymore.

Symptoms:
$ mount -v -t nfs poseidon:/datadisk/ /mnt/gentoo/
mount.nfs: timeout set for Sun Jun 29 19:33:40 2014
mount.nfs: trying text-based options 
'vers=4,addr=192.168.1.6,clientaddr=192.168.1.2'
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options 'addr=192.168.1.6'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.1.6 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying 192.168.1.6 prog 100005 vers 3 prot UDP port 60058
mount.nfs: mount(2): Stale NFS file handle
mount.nfs: trying text-based options 
'vers=4,addr=192.168.1.6,clientaddr=192.168.1.2'
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options 'addr=192.168.1.6'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.1.6 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying 192.168.1.6 prog 100005 vers 3 prot UDP port 60058
mount.nfs: mount(2): Stale NFS file handle
[...]
mount.nfs: Connection timed out
$

[Poseidon is my server at 192.168.1.6, the client is at 192.168.1.2]

Server disk to be exported is a ~9TB raid array with XFS.

I'm using nfs3 with ACL and no idmapd; nfs4+ is not compiled into kernel 
(neither on client nor on server); Why it is trying nfs4 first as seen in the 
log above I don't know. nfs-utils has been compiled with USE=-nfsv4

Server has kernel version 3.12.21-gentoo-r1and net-fs/nfs-utils-1.2.9 
installed. As both clients and server are not accessable from outside, no 
firewalls are installed.

What I checked:
/etc/exports:
/datadisk               192.168.1.0/24(rw,async,subtree_check)                                                                
        
portmapper, nfs-services are running normal, as far I can see.

Does anyone have any suggestion?

Thanks,
        Alex