FreeBSD 7 - nagios2 (defunct - process)

[Gian Paolo Buono]

Hi, Ihave a server with FreeBSD 7.1-RELEASE-p2 with 950 host and 4900
service, Nagios 3.0.3

Sometimes nagios don't update the status and when i try to stop nagios don't
dies, i try to kill -9 the process but don't dies, there are many  defunct
process of nagios  so I have to reboot the server. I haven't any log.
That sounds very familiar to the locking/contention issue FreeBSD 7.x has
with Nagios,  It has to do with how Nagios and FreeBSD handle threading.
When I had FreeBSD haven't problem.

Any idea ? thank you for the support bye..