#0  0x00007fa0c86d070f in pthread_join () from /lib/libpthread.so.0
#1  0x0000000000401fbd in ?? ()
#2  0x00007fa0c89031c4 in __libc_start_main () from /lib/libc.so.6
#3  0x0000000000401b19 in ?? ()
#4  0x00007fffd14859c8 in ?? ()
#5  0x0000000000000000 in ?? ()