Hello,

we've a NFS3 share on a VNX which we've mounted on some Linux clients (CentOS6). This was running fine for more than one year.

Unfortunately I now get file locking errors on the clients. It looks like that the number of errors increases when there's a "heavy" NFS3 load: At 1st users cannot got a lock on single files, later on they get problems on more files. After a reboot NO locks are available at all!

Enabling the debugging options shows that the servers answers requests or function calls e.g. with "server returns status 33554432" and "clnt proc returns -37".

So far it looks like a problem of the client, but changing the clients IP adress makes things working again!

Has anyone an idea how to solve this? Maybe there's a possibility to "reset" the server lock state(s)?

Thank you,

Markus