Template:FAQ:Agent 41
From Net-SNMP Wiki
This means that the agent wasn't able to locate one of the
kernel structures it was looking for. This may or may not
be important - some systems provide alternative mechanisms
for obtaining the necessary information - Solaris, for example,
can produce a whole slew of such messages, but still provide
the correct information.
This error only occurs if you have used the flag
'--enable-debugging'
as part of the initial configuration.
Reconfigure the agent with '--disable-debugging'
and these
messages will disappear. (It won't fix the underlying problem,
but at least you won't be nagged about it).