Very Computer

When I give any signal (Ctrl-C, or break function) to my program
under gdb, it says like this...
--
Program terminated with signal SIGINT,
Interrupt.
The program no longer exists.
(gdb) where
No stack.
(gdb)

It works good before and for other program.
--
Program received signal SIGINT, Interrupt.
0x400186aa in __libc_close ()
(gdb)

I'm using gdb-4.14 for elf, and Linux 1.3.9x