Program received signal SIGSEGV, Segmentation fault. t_forward_nonack (t=0x2b8576c9e208, p_msg=0x649650, proxy=0x0) at t_fwd.c:754 754 if (check_blacklists( t->uac[i].proxy->port, (gdb) bt #0 t_forward_nonack (t=0x2b8576c9e208, p_msg=0x649650, proxy=0x0) at t_fwd.c:754 #1 0x00002b8576276e84 in t_relay_to (p_msg=0x649650, proxy=0x0, flags=10) at t_funcs.c:253 #2 0x000000000040ac04 in do_action (a=0x6426c0, msg=0x649650) at action.c:883 #3 0x000000000040ce23 in run_action_list (a=, msg=0x649650) at action.c:131 #4 0x0000000000449d3d in eval_expr (e=0x642760, msg=0x649650, val=0x2b8576c9e208) at route.c:1041 #5 0x000000000044995a in eval_expr (e=0x6427a8, msg=0x649650, val=0x0) at route.c:1356 #6 0x00000000004498d2 in eval_expr (e=0x6427f0, msg=0x649650, val=0x0) at route.c:1361 #7 0x000000000040ab2a in do_action (a=0x642968, msg=0x649650) at action.c:783 #8 0x000000000040ce23 in run_action_list (a=, msg=0x649650) at action.c:131 #9 0x000000000040b46c in do_action (a=0x641e80, msg=0x649650) at action.c:111 #10 0x000000000040ce23 in run_action_list (a=, msg=0x649650) at action.c:131 #11 0x000000000040bd93 in do_action (a=0x641f20, msg=0x649650) at action.c:801 #12 0x000000000040ce23 in run_action_list (a=, msg=0x649650) at action.c:131 #13 0x000000000040d0d8 in run_top_route (a=0x6400e8, msg=0x649650) at action.c:111 #14 0x000000000043cc1d in receive_msg ( buf=0x604140 "BYE sip:600@127.0.0.1:5070 SIP/2.0\r\nRoute: \r\nCSeq: 3 BYE\r\nVia: SIP/2.0/UDP 192.168.1.72:5073;branch=z9hG4bKe6525e6f-7037-dc11-915f-0013d49c7"..., len=556, rcv_info=0x7fff350d0de0) at receive.c:156 #15 0x000000000046d092 in udp_rcv_loop () at udp_server.c:465 #16 0x0000000000428996 in main_loop () at main.c:732 #17 0x000000000042aa39 in main (argc=, argv=) at main.c:1399