No symbol table info available.
#1  0x0808047a in do_sockets (next=1000) at socket.c:798
        rfd = {__fds_bits = {896, 0 <repeats 31 times>}}
        timeout = {tv_sec = 0, tv_usec = 614546}
        ret = <value optimized out>
        i = <value optimized out>
#2  0x0807e80d in main (argc=1, argv=0xbffff854) at core.c:371
        next = -514
(gdb) bt full
#0  0xb7ccdf68 in select () from /lib/libc.so.6
No symbol table info available.
#1  0x0808047a in do_sockets (next=1000) at socket.c:798
        rfd = {__fds_bits = {896, 0 <repeats 31 times>}}
        timeout = {tv_sec = 0, tv_usec = 614546}
        ret = <value optimized out>
        i = <value optimized out>
#2  0x0807e80d in main (argc=1, argv=0xbffff854) at core.c:371
        next = -514