statd error messages - do I need a more recent nfs-utils version?

Hello,

server was running Debian 3.0r1 + kernel 2.2.20 (vanilla) and some days ago because of various reasons I had to upgrade to kernel 2.4.x ASAP. Because of some knfsd related fixes in 2.4.21-pre I did some stability tests and after that I installed 2.4.21-pre7 on the server. With the new kernel statd often causes error messages in the server log, for instance:

(srv = server
and three drifferent clients as an example:
.105 = AIX 5.1-ML2
.107 = HP-UX 11.0U
.114 = IRIX 6.5.15)

~~~snip~~~
srv rpc.statd[475]: Received erroneous SM_UNMON request from srv for
x.x.x.105
srv rpc.statd[475]: Received erroneous SM_UNMON request from srv for
x.x.x.107
srv rpc.statd[475]: Received erroneous SM_UNMON request from srv for
x.x.x.114
~~~snip~~~

Are these messages somehow important? With kernel 2.2.20 there were no such messages.
Debian Woody comes with nfs-utils 1.0 - maybe these messages are related to this older utils version and I have to update nfs-utils to 1.0.3? Building the Debian package wouldn't be a problem ...

Regards,
Andreas

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