Wheezy "NFSv4 callback reply buffer overflowed"

[Piotr Kweclich <piotr.kweclich@unity.pl>]

Hi,

I've recently found on one of my servers, that kernel keeps complaining:
"NFSv4 callback reply buffer overflowed"

On the client side, system is:
Wheezy 7.8
Kernel: SMP Debian 3.2.65-1+deb7u1 x86_64 GNU/Linux
nfs-common                           1:1.2.6-4

Device working as NFS server is NetApp FAS3250.

Problem started just few days ago.
Except for that annoying message, nfs storage seems to be working fine.

I tired finding solution on-line but without any luck,
I'd appreciate any help.

Regards.

-- 
Piotr Kweclich