Segfault in 2.1.10 backports version advice

[Arnaud Loonstra]

Any advice on a segfault situation...?

Jan 23 13:29:17 LX800476 kernel: [1366692.780725] freeradius[23459]: 
segfault at 8 ip b7461326 sp b5105988 error 4 in 
libc-2.7.so[b7403000+155000]

Running a backports verison of freeradius on Debian Lenny:
2.1.10+dfsg-2~bpo50+1, 2.6.26-2-686 on Vmware ESX cluster.

I cannot reproduce it on a test server and it only happens in 
production. Probably a load thing...?

I could upgrade to current stable version in git, I could upgrade the OS 
(Lenny to Squeeze). Debugging from this backports version seems an 
impossible road? Or I could install the -dbg version and perhaps run the 
server in a screen session? However I have experienced it won't crash if 
run in debug mode (-X). I reckon in -X it is run in single threaded mode?

Rg,

Arnaud