Program received signal SIGABRT, Aborted.
0xb7f0c410 in __kernel_vsyscall ()
(gdb) bt
#0  0xb7f0c410 in __kernel_vsyscall ()
#1  0xb7bd9f05 in ?? ()
#2  0xb7cdbff4 in ?? ()
#3  0xbfa34a0c in ?? ()
#4  0xb706ab60 in ?? ()
#5  0xbfa34a98 in ?? ()
#6  0xb7bdb721 in ?? ()
#7  0x00000006 in ?? ()
#8  0xbfa34a0c in ?? ()
#9  0x00000000 in ?? ()