Hi All,

I have patched my server with latest kernel 3.0.101-0.47.71-xen.

After patch NFS share are not mounted and got the bellow error in /var/log/messages.

Mar 6 17:36:40 Server_Name kernel: [ 84.680056] nfs_acl: Unknown symbol xdr_decode_array2 (err 0)
Mar 6 17:36:40 Server_Name kernel: [ 84.680079] nfs_acl: Unknown symbol xdr_encode_word (err 0)
Mar 6 17:36:40 Server_Name kernel: [ 84.680082] nfs_acl: Unknown symbol xdr_encode_array2 (err 0)
Mar 6 17:36:40 Server_Name kernel: [ 84.680084] nfs_acl: Unknown symbol xdr_decode_word (err 0)
Mar 6 17:36:40 Server_Name rpc.idmapd[3129]: main: open(/var/lib/nfs/rpc_pipefs/nfs): No such file or directory
Mar 6 18:11:18 Server_Name modprobe: FATAL: Error inserting nfs (/lib/modules/3.0.101-0.47.71-xen/kernel/fs/nfs/nfs.ko): Unknown symbol in module, or unknown parameter (see dmesg)
Mar 6 18:11:18 Server_Name kernel: [ 2162.738705] nfs_acl: Unknown symbol xdr_decode_array2 (err 0)
Mar 6 18:11:18 Server_Name kernel: [ 2162.738727] nfs_acl: Unknown symbol xdr_encode_word (err 0)
Mar 6 18:11:18 Server_Name kernel: [ 2162.738730] nfs_acl: Unknown symbol xdr_encode_array2 (err 0)
Mar 6 18:11:18 Server_Name kernel: [ 2162.738733] nfs_acl: Unknown symbol xdr_decode_word (err 0)
Mar 6 18:11:18 Server_Name modprobe: FATAL: Error inserting nfs (/lib/modules/3.0.101-0.47.71-xen/kernel/fs/nfs/nfs.ko): Unknown symbol in module, or unknown parameter (see dmesg)

It seems nfs module is not loaded.

Can any one help me to find why is not loaded or that module is corrupted?

Am in the process of find the root cause for the above errors.

Kindly help me to find the cause.

Regards,
Hariharan V