``` #0 build_res_buf_from_sip_req (code=1576798744, code@entry=487, text=0x25, new_tag=0x7f186f74d2b0 <tm_tag>, msg=0x7f185dfbf9a0, returned_len=0xb7, bmark=0x8548c03148244489) at msg_translator.c:2395 lump = 0x0 received_len = 0 rport_len = 0 warning_len = 0 after_body = 0x0 totags = 0x0 __FUNCTION__ = "build_res_buf_from_sip_req" #1 0x00007f186f4b17b2 in _reply (trans=0x7f185dfbc060, p_msg=0x7f185dfbf9a0, code=487, text=<optimized out>, lock=1) at t_reply.c:712 len = 31474 buf = <optimized out> dset = <optimized out> bm = {to_tag_val = {s = 0x7ffeab147e2c "", len = 0}} dset_len = 0 reason = {s = 0x7f186f535472 "Request canceled", len = 16} #2 0x00007f186f507e8b in e2e_cancel (cancel_msg=0x7f185dfc0a18, t_cancel=0x25, t_invite=0x7f185dfbc060) at t_fwd.c:1278 cancel_bm = 0 reason = 0x7f185dfbc060 i = 1921036208 tmcb = {req = 0x6f1ddb, rpl = 0x5e3437 <dns_srv_sip_resolvehost+279>, param = 0x2e, code = -1424720300, flags = 32766, branch = 0, t_rbuf = 0x7f185dfb7b38, dst = 0x7f185dfb7a68, send_buf = {s = 0x7f1872477a18 "\001", len = 69206528}} __FUNCTION__ = "e2e_cancel" #3 0x00007f186f50d2c2 in t_forward_nonack (t=0x7f185dfb7950, p_msg=0x7f187280afb0, proxy=0x0, proto=307) at t_fwd.c:1619 current_uri = {s = 0x0, len = 1921036208} q = 32536 t_invite = 0x7f185dfbc060 success_branch = 0 lock_replies = 1576779872 dst_uri = {s = 0x0, len = 10482636} path = {s = 0x7f186f74d1f0 <tm_cfg> "\b\235\372]\030\177", len = 1869926896} instance = {s = 0x7f186f7624d0 <user_rt_t1_timeout_ms> "", len = 1866962556} ruid = {s = 0x7ffe00000007 <error: Cannot access memory at address 0x7ffe00000007>, len = 7282139} location_ua = {s = 0x6 <error: Cannot access memory at address 0x6>, len = -1424718544} si = 0xb65c050904200200 backup_bflags = 0 bflags = 0 __FUNCTION__ = "t_forward_nonack" #4 0x00007f186f50df6b in t_forward_cancel (p_msg=0x7f187280afb0, proxy=0x0, proto=0, tran=0x7ffeab148240) at t_fwd.c:1816 t_invite = 0x0 t = 0xb7 ret = 1 dst = {send_sock = 0x7f18702e80b6, to = {s = {sa_family = 6554, sa_data = "_s\030\177\000\000\000\000\000\000\000\000\000"}, sin = {sin_family = 6554, sin_port = 29535, sin_addr = {s_addr = 32536}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 6554, sin6_port = 29535, sin6_flowinfo = 32536, sin6_addr = {__in6_u = { __u6_addr8 = "\000\000\000\000\000\000\000\000(\000\000\000\060\000\000", __u6_addr16 = {0, 0, 0, 0, 40, 0, 48, 0}, __u6_addr32 = {0, 0, 40, 48}}}, sin6_scope_id = 2870249136}}, id = 32766, proto = -63 '\301', send_flags = { f = 177 '\261', blst_imask = 112 'p'}} host = {s = 0xffffffffffffffff <error: Cannot access memory at address 0xffffffffffffffff>, len = 1} __FUNCTION__ = "t_forward_cancel" #5 0x00007f186f4f117a in t_relay_to (p_msg=0x7f187280afb0, proxy=0x0, proto=0, replicate=0) at t_funcs.c:238 ret = 1911489832 t = 0x7f187370b1c8 dst = {send_sock = 0x7f18735f199a <vfprintf+22490>, to = {s = {sa_family = 6554, sa_data = "_s\030\177\000\000\377\377\377\377\377\377\377\377"}, sin = {sin_family = 6554, sin_port = 29535, sin_addr = { s_addr = 32536}, sin_zero = "\377\377\377\377\377\377\377\377"}, sin6 = {sin6_family = 6554, sin6_port = 29535, sin6_flowinfo = 32536, sin6_addr = {__in6_u = {__u6_addr8 = "\377\377\377\377\377\377\377\377űps\030\177\000", __u6_addr16 = {65535, 65535, 65535, 65535, 45509, 29552, 32536, 0}, __u6_addr32 = {4294967295, 4294967295, 1936765381, 32536}}}, sin6_scope_id = 2870248224}}, id = 32766, proto = 7 '\a', send_flags = {f = 0 '\000', blst_imask = 0 '\000'}} host = {s = 0x7ffeab148350 " \210\024\253\376\177", len = 1935612314} __FUNCTION__ = "t_relay_to" #6 0x0000000000446650 in do_action (h=0x7ffeab148960, a=0x7f1871ef0528, msg=0x7f187280afb0) at action.c:1060 ret = -5 v = 0 dst = {send_sock = 0xc8, to = {s = {sa_family = 35200, sa_data = "\244", '\000' <repeats 12 times>}, sin = { ``` ``` (gdb) p *msg->reply_lump $2 = {text = {s = 0x7f185dfbb3c0 "P-Out-Socket: udp:127.0.0.1:5060\r\n", len = 34}, flags = 34, next = 0x7f185dfbb3e8} (gdb) p *msg->reply_lump->next $3 = {text = {s = 0x7f185dfbb408 "P-NGCP-Auth-IP: 127.0.2.1\r\n]\030\177", len = 27}, flags = 34, next = 0x7f185dfbb428} (gdb) p *msg->reply_lump->next->next $4 = {text = {s = 0x7f185dfbb448 "P-NGCP-Auth-UA: <null>\r\n\200\264\373]\030\177", len = 24}, flags = 34, next = 0x7f185dfbb460} (gdb) p *msg->reply_lump->next->next->next $5 = {text = {s = 0x7f185dfbb480 "P-Callee-Uuid: fe3366a8-8b5b-4ec9-81e4-ba5a4f8bd124\r\n", len = 53}, flags = 34, next = 0x0} ```