Hi we regulary get these messages since we upgraded from 2.2.3 to 2.2.5 I have attached the GDB log as i'm no developper expert to find out what's going on... Hopefully someone can help us out with this <SOME INFO> We are running Debian 7.7 x64 Linux 3.2.0-4-amd64 (radius1) 10/22/2014 _x86_64_ (8 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 0.24 0.00 0.11 0.10 0.00 99.56 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn cciss/c0d0 163.25 9.31 1491.34 3263611 522909360 <RADIUS LOGS> Wed Oct 22 16:35:35 2014 : Error: Discarding duplicate request from client telenet-81.82.0.0/15 port 3072 - ID: 226 due to unfinished request 2664227 Wed Oct 22 16:35:37 2014 : Error: WARNING: Unresponsive thread 2664227 for request 0, in component <core> module Wed Oct 22 16:35:38 2014 : Info: WARNING: Child is hung for request 2664227 in component <core> module . Attached a debug with command, "echo 'thread apply all bt full' > /tmp/gdb_cmd; gdb --pid `cat /var/run/freeradius/freeradius.pid` -batch -x /tmp/gdb_cmd > gdb_bt; gzip gdb_bt" Hopefully this brings something useful, as previous debug to devel list didnt show the reason.