[Freeswitch-users] Different behavior of FS under gdb

I am testing latest commit b21f34bffc with CentOS 6.5. FS gets stuck at this point during startup: # ./freeswitch -nonat 2014-06-23 17:16:34.231865 [INFO] switch_event.c:670 Activate Eventing Engine. 2014-06-23 17:16:34.232154 [WARNING] switch_event.c:652 Create additional event dispatch thread 0 So I tried to run it under gdb, but when i do 'r -nonat' in the gdb cli, FS doesn't get stuck and starts properly (i get the FS CLI and I am able to execute commands in it). Any idea why would this be?