I am getting error code like follows
(gdb) continue
Current language: auto; currently objective-c
(gdb) continue
(gdb) continue
(gdb) continue
2011-11-08 17:31:53.156 OnContact[2849:207] *** -[CFString release]: message sent to deallocated instance 0x4cf2eb0
(gdb) continue
Program received signal: “SIGKILL”.
(gdb)
Can anybody help me finding out the line number where error had occured
Thanks
You should enable NSZombie, that is designed to find such errors. See here