NET-SNMP kvm_read errors

[elekktretterr at exemail.com.au]

Running 1.4.4 here and net-snmp. Im getting lots of these errors:

Jun  1 13:01:29 h5n1 snmpd[14906]: auto_nlist failed on cnt at location 1
Jun  1 13:01:29 h5n1 snmpd[14906]: kvm_read(*, 1, 0x280f31e0, 164) = -1:
kvm_rea
d: Bad address
Jun  1 13:01:29 h5n1 snmpd[14906]: auto_nlist failed on cnt at location 1
Jun  1 13:01:30 h5n1 snmpd[14906]: kvm_read(*, 1, 0x280f31e0, 164) = -1:
kvm_rea
d: Bad address

Now googling tells me that it might be because kernel/userland are not in
sync. It can't be, because I built the kernel from the same sources as
userland.

How do I fix it?