memory leaks and other problems with rlm_ippool

Alan DeKok aland at
Wed Aug 24 18:50:54 CEST 2005

Peter Nixon <listuser at> wrote:
> I am consistently finding that if you create more than one IP Pool bigger 
> than a class B network that FreeRADIUS fails to start with an error saying 
> that it cannot fork. It can however be run in debug mode with this config. 

  Maybe the modules should be initialized *after* forking, not before.

> Also, one customer who had only a single class B IP Pool with about 10,000 
> clients connecting and disconnecting on a regular basis (Around 300 Auth 
> requests and associated Accounting packets per minute between 8am and 
> midnight) is seeing their FreeRADIUS grow over the course of a couple of 
> days until the Linux OOM killer kills it.

  Maybe the DB library has a memory leak?

  In the short term, I would suggest HUP'ing their server every day or
so, even if the config hasn't changed.  That should tear down the
modules & restart them, which might help.

  Alan DeKok.

More information about the Freeradius-Devel mailing list