[OpenSBC] opensbc get crashed on increasing test calls

[msp <pm...@gm...>]

Hi,

My modified OpenSBC-1-1-5_RC4 is getting crashed when I increase
simultaneous calls to more than 30.
I have started the opensbc using below command:
/usr/local/bin/opensbc -d -p /var/run/opensbc.pid -H 65536 -C 1024000


Only changes in the code I have done can be seen on the link:
http://pastebin.com/m7bfd3b27 (It just add a custom header variable before
routing the call, Let me know if any serious thing is going in the coding)

I tried to solve this using gdb, but there is no back trace found when i try
to debug using below command:
gdb core.<###> /path/to/opensbc
=====================================Command output
....
This GDB was configured as "i486-linux-gnu"...
Cannot access memory at address 0xb7f1a658
(gdb) bt
#0  0xb7eeb7db in ?? ()
Cannot access memory at address 0xb24feca0
===================================================

Is there any configuration/options required while compiling opensbc, so that
I can get BT correctly?
Also kindly comment if the changes are not proper.

I tested RC3 also, but same happens there.
Which is the most stable version of OpenSBC, so that I can try that also?

Thanks,
Shehzad