IPFW pipe list - invalid oid len 0

[Pawel Tyll]

Hi lists,

I'm running:
/sbin/ipfw pipe list > pipestats-`date "+%Y%m%d-%H%M%S"`

from cron every minute for statistical purposes.

Randomly (more often in loaded hours) it results in:

ipfw: invalid oid len 0

Is this enough to squash this bug?