Mismatched kernel and world is a bad thing !

Here is an example of what you can get for running mismatched kernel and world :

[dante@wraith ~]$ sockstat -4l
sockstat: struct xtcpcb size mismatch
sockstat: struct xinpcb size mismatch
USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS
[dante@wraith ~]$

Now I need to rebuild world and kernel X-(