Instability with 1.1.7 and Alcatel Wifi controllers

[Fabio Pedretti]

I am using freeradius 1.1.7 at my University since some time and never had any problem. I recently added two Alcatel controllers (Alcatel 6000 and 4302) with their APs.

Since that I noticed that freeradius sometimes (about once every week) hangs with 100% cpu usage or crashes after similar messages:

Fri Mar 14 08:23:16 2008 : Error: rlm_eap: Either EAP-request timed out OR EAP-response to an unknown EAP-request
Fri Mar 14 08:23:16 2008 : Auth: Login incorrect: [33505 at students] (from client SF-alcatel-4302 port 1 cli 001302065FE2)
Fri Mar 14 08:43:35 2008 : Auth: Login OK: [testpap] (from client alcatel-ext port 0 cli 000000000000)
Fri Mar 14 08:51:26 2008 : Error: Discarding duplicate request from client SF-alcatel-4302:32794 - ID: 25 due to unfinished request 1155

or

Tue Feb 26 09:38:46 2008 : Error: rlm_eap: Either EAP-request timed out OR EAP-response to an unknown EAP-request
Tue Feb 26 09:38:46 2008 : Auth: Login incorrect: [host/fabry-722333783] (from client SC-alcatel-6000 port 1 cli 00130287CBCD)
Tue Feb 26 09:39:57 2008 : Info: rlm_eap_mschapv2: Issuing Challenge
Tue Feb 26 09:40:07 2008 : Error: Discarding duplicate request from client SC-alcatel-6000:32794 - ID: 85 due to unfinished request 2143

I am using a selfcompiled freeradius 1.1.7 deb package on a 64 bit Ubuntu 6.06 and I am using mysql and ldap backends.

Have someone idea on what can be the problem? I'll try to compile with --enable-developer if core dumps are needed.

Thanks,
Fabio