Program received signal SIGSEGV, Segmentation fault.
0xb7fc3a17 in __libc_res_nquery () from /lib/libresolv.so.2
(gdb) bt full
#0  0xb7fc3a17 in __libc_res_nquery () from /lib/libresolv.so.2
No symbol table info available.
#1  0xb7fc3f8b in __libc_res_nquerydomain () from /lib/libresolv.so.2
No symbol table info available.
#2  0xb7fc43c5 in __libc_res_nsearch () from /lib/libresolv.so.2
No symbol table info available.
#3  0xb7fd48e0 in _nss_dns_gethostbyname4_r () from /lib/libnss_dns.so.2
No symbol table info available.
#4  0xb7d731a3 in gaih_inet () from /lib/libc.so.6
No symbol table info available.
#5  0xb7d760d5 in getaddrinfo () from /lib/libc.so.6
No symbol table info available.
#6  0x08166c84 in bind9_getaddresses ()
No symbol table info available.
#7  0x08050565 in get_address ()
No symbol table info available.
#8  0x08054f0f in send_udp ()
No symbol table info available.
#9  0x08056f8a in connect_timeout ()
No symbol table info available.
#10 0x08187658 in isc__taskmgr_dispatch ()
No symbol table info available.
#11 0x0818ace9 in evloop ()
No symbol table info available.
#12 0x0818b1ff in isc__app_ctxrun ()
No symbol table info available.
#13 0x0818b2f2 in isc__app_run ()
No symbol table info available.
#14 0x0804fa4f in main ()
No symbol table info available.