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### Description

<!-- Explain what you did, what you expected to happen, and what actually happened. --> We are using kamailio with a python_handler. If a call is parallel forked, kamailio segfaults in append_branch (get_str_fparam) because the q parameter is not set. Since the q parameter is optional, we didn't set it. If I set something for q (eg "1"), the forking seems to work fine.

I tested the issue with Kamailio 5.2.[238] and 5.5.4. The behavior is equal in all versions.

We are using yocto dunfell as OS with compiler option "O2". Interestingly, if I disable the optimization, the forking works even without q parameter.

### Troubleshooting

#### Reproduction

<!-- If the issue can be reproduced, describe how it can be done. --> The problem is reproducible. As soon as a call is forked to at least two callees, kamailio crashes.

#### Debugging Data

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``` (gdb) list 1612 /** Get the function parameter value as string. 1613 * @return 0 - Success 1614 * -1 - Cannot get value 1615 */ 1616 int get_str_fparam(str* dst, struct sip_msg* msg, fparam_t* param) 1617 { 1618 int_str val; 1619 int ret; 1620 avp_t* avp; 1621 pv_value_t pv_val; (gdb) print(param) $1 = (fparam_t *) 0x478a90343ce2286 (gdb) print param->type Cannot access memory at address 0x478a90343ce228e

(gdb) bt full #0 0x00005608e9016c0a in get_str_fparam (dst=dst@entry=0x7fffcf4c9a60, msg=msg@entry=0x7fb95740d408, param=param@entry=0x478a90343ce2286) at core/sr_module.c:1617 val = {n = 1451801216, s = { s = 0x7fb95688ba80 "\307\356\370\377\243\356\370\377\226\356\370\377\v\356\370\377\354\356\370\377\027%\371\377\t%\371\377\373$\371\377\355$\371\377d&\371\377j%\371\377\341\355\370\377\341\355\370\377\202\356\370\377\367\355\370\377", len = 1371188816}, re = 0x7fb95688ba80} ret = <optimized out> avp = <optimized out> pv_val = {rs = { s = 0x7fb95688ba80 "\307\356\370\377\243\356\370\377\226\356\370\377\v\356\370\377\354\356\370\377\027%\371\377\t%\371\377\373$\371\377\355$\371\377d&\371\377j%\371\377\341\355\370\377\341\355\370\377\202\356\370\377\367\355\370\377", len = 1371188816}, ri = 1371188816, flags = 32697} __func__ = "get_str_fparam" #1 0x00007fb95708ffca in w_corex_append_branch (msg=0x7fb95740d408, pu=<optimized out>, pq=0x478a90343ce2286) at corex_lib.c:94 uri = {s = 0x7fb951202dc4 "sips:100105@ttel.node-1.ersaimfs.ch", len = 35} qv = {s = 0x0, len = 0} __func__ = "w_corex_append_branch" #2 0x00007fb957088299 in w_append_branch (msg=<optimized out>, su=<optimized out>, sq=<optimized out>) at corex_mod.c:257 No locals. #3 0x00005608e8f5dca6 in do_action (h=h@entry=0x7fffcf4ca060, a=a@entry=0x7fb957322490, msg=0x7fb95740d408) at core/action.c:1079 ret = <optimized out> v = <optimized out> dst = {send_sock = 0x7fb9573224f0, to = {s = {sa_family = 1, sa_data = "\000\000\000\000\000\000\200\376.W\271\177\000"}, sin = {sin_family = 1, sin_port = 0, sin_addr = {s_addr = 0}, sin_zero = "\200\376.W\271\177\000"}, sin6 = {sin6_family = 1, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {__u6_addr8 = "\200\376.W\271\177\000\000@\237\003\353\bV\000", __u6_addr16 = {65152, 22318, 32697, 0, 40768, 60163, 22024, 0}, __u6_addr32 = {1462697600, 32697, 3942883136, 22024}}}, sin6_scope_id = 1375836400}, sas = {ss_family = 1, __ss_padding = "\000\000\000\000\000\000\200\376.W\271\177\000\000@\237\003\353\bV\000\000\360\230\001R\271\177\000\000\030i\001\351\bV\000\000P\322\036R\271\177\000\000P\322\036R\271\177\000\000\360$2W\271\177\000\000\345\331\v\351\bV\000\000M\315\020R\271\177\000\000\271\350\225V\271\177\000\000\t\000\000\000\000\000\000\000\200\376.W\271\177\000\000\003\000\000\000\000\000\000\000\002\000\000\000\000\000\000", __ss_align = 140433907209136}}, id = 1377751632, send_flags = {f = 32697, blst_imask = 0}, proto = -16 '\360', proto_pad0 = 90 'Z', proto_pad1 = 20783} tmp = <optimized out> new_uri = <optimized out> end = <optimized out> crt = <optimized out> cmd = <optimized out> len = <optimized out> user = <optimized out> uri = {user = {s = 0x5608eb72eb58 "\220%'Q\271\177", len = 1451402473}, passwd = {s = 0x7fb951abefd0 "p\350\253Q\271\177", len = -817062640}, host = {s = 0x7fb956969d3a ":LM_DBG", len = 0}, port = { s = 0x7fffcf4c9d08 "\021\234\nW\271\177", len = -817062664}, params = {s = 0x2 <error: Cannot access memory at address 0x2>, len = 1451355409}, sip_params = {s = 0x5608eb039f40 "", len = 1494317568}, headers = {s = 0x7fb952248aa0 "\001", len = -817062640}, port_no = 40336, proto = 53068, type = 32767, flags = (unknown: 1494317568), transport = {s = 0x0, len = 1451402473}, ttl = {s = 0x7fffcf4c9d90 "p\230%R\271\177", len = -817062512}, user_param = {s = 0x7fb95696a0ea "s:call_function", len = 0}, maddr = {s = 0x7fffcf4c9d88 "", len = -817062536}, method = { s = 0x7fffcf4c9d08 "\021\234\nW\271\177", len = 1376090576}, lr = {s = 0x0, len = 1494317568}, r2 = {s = 0x7fffcf4c9d10 "", len = -817062512}, gr = {s = 0x7fffcf4c9e10 "#", len = 1460313105}, transport_val = {s = 0x800000 <error: Cannot access memory at address 0x800000>, len = 6509480}, ttl_val = {s = 0x140b88 <error: Cannot access memory at address 0x140b88>, len = 1879128}, user_param_val = {s = 0x1caed0 <error: Cannot access memory at address 0x1caed0>, len = 8}, maddr_val = {s = 0x9 <error: Cannot access memory at address 0x9>, len = 1494317568}, method_val = { s = 0x0, len = -384625558}, lr_val = {s = 0x0, len = 1}, r2_val = {s = 0x7fff00000001 <error: Cannot access memory at address 0x7fff00000001>, len = 139}, gr_val = {s = 0x7fb951be3750 "\001", len = 0}} next_hop = {user = {s = 0x7fb952259870 "\003", len = 1362141712}, passwd = {s = 0x7fb9520579d0 "", len = 2}, host = {s = 0x7fffcf4c9e39 "Tc", len = 1460313105}, port = { s = 0x800000 <error: Cannot access memory at address 0x800000>, len = 6509616}, params = {s = 0x140b68 <error: Cannot access memory at address 0x140b68>, len = 1878992}, sip_params = { s = 0x1caed0 <error: Cannot access memory at address 0x1caed0>, len = 8}, headers = {s = 0x9 <error: Cannot access memory at address 0x9>, len = 1494317568}, port_no = 0, proto = 0, type = ERROR_URI_T, flags = (URI_SIP_USER_PHONE | unknown: 3910341736), transport = {s = 0x23 <error: Cannot access memory at address 0x23>, len = 1}, ttl = { s = 0x1 <error: Cannot access memory at address 0x1>, len = 159}, user_param = {s = 0x800000 <error: Cannot access memory at address 0x800000>, len = 6509616}, maddr = { s = 0x140b68 <error: Cannot access memory at address 0x140b68>, len = 1878992}, method = {s = 0x1caed0 <error: Cannot access memory at address 0x1caed0>, len = 1460313105}, lr = { s = 0x800000 <error: Cannot access memory at address 0x800000>, len = 6509776}, r2 = {s = 0x140b30 <error: Cannot access memory at address 0x140b30>, len = 1878832}, gr = { s = 0x1caed0 <error: Cannot access memory at address 0x1caed0>, len = 1494317568}, transport_val = {s = 0x9 <error: Cannot access memory at address 0x9>, len = 32}, ttl_val = { s = 0x7fb9573224f0 "\340%2W\271\177", len = 1462904048}, user_param_val = {s = 0x7fb9572efe80 "\263^\tW\271\177", len = -352084160}, maddr_val = {s = 0x7fb9520198f0 "\t", len = -385793122}, method_val = {s = 0x7fb9573225a8 "8", len = 1494317568}, lr_val = {s = 0x7fb951202dc4 "sips:100105@ttel.node-1.ersaimfs.ch", len = 35}, r2_val = { s = 0x1a <error: Cannot access memory at address 0x1a>, len = 2}, gr_val = {s = 0x7fb9572efe80 "\263^\tW\271\177", len = 1494317568}} u = <optimized out> port = <optimized out> dst_host = <optimized out> i = <optimized out> flags = 22024 avp = <optimized out> st = {flags = 1378195568, id = 32697, name = {n = 1362141712, s = {s = 0x7fb95130a210 "", len = 1376090576}, re = 0x7fb95130a210}, avp = 0x2} sct = <optimized out> --Type <RET> for more, q to quit, c to continue without paging-- sjt = <optimized out> rve = <optimized out> mct = <optimized out> rv = 0x7fb951272590 rv1 = <optimized out> c1 = {cache_type = RV_CACHE_PVAR, val_type = RV_NONE, c = {avp_val = {n = 0, s = {s = 0x0, len = -383795196}, re = 0x0}, pval = {rs = {s = 0x0, len = -383795196}, ri = 1361063364, flags = 32697}}, i2s = "\200\376.W\271\177\000\000\000z\021Y\372\017\223\221\360\230\001R\271\177"} s = {s = 0x7fb952238720 "\n", len = 0} srevp = {0x7fb9520198f0, 0x91930ffa59117a00} evp = {data = 0x0, obuf = {s = 0x0, len = 0}, rcv = 0x0, dst = 0x0, req = 0x0, rpl = 0x0, rplcode = 0, mode = 0} mod_f_params = {{type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = { number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = { s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}} __func__ = "do_action" #4 0x00007fb956960a1f in msg_call_function (self=0x7fb9521ed250, args=<optimized out>) at python_msgobj.c:269 i = <optimized out> rval = <optimized out> fname = 0x7fb952122214 "append_branch" arg1 = 0x7fb951202dc4 "sips:100105@ttel.node-1.ersaimfs.ch" arg2 = 0x478a90343ce2286 <error: Cannot access memory at address 0x478a90343ce2286> fexport = 0x7fb9572efe80 act = 0x7fb957322490 ra_ctx = {rec_lev = 0, run_flags = 0, last_retcode = 0, jmp_env = {{__jmpbuf = {0, 140433996622556, 94596309864320, 140433997811136, 140433922573152, 140432545677312, 140433921520564, 140433921513712}, __mask_was_saved = 1377229072, __saved_mask = {__val = {2, 140433997743136, 140433996765928, 140433921518400, 140433921518400, 140433921519984, 140433996477510, 140433921513712, 10489745524986575360, 140433921519984, 140433998468960, 140433921513712, 140433996646484, 94596309864736, 10489745524986575360, 94596309864728}}}}} __func__ = "msg_call_function" #5 0x00007fb95681df1c in PyEval_EvalFrameEx () from /usr/lib/libpython2.7.so.1.0 No symbol table info available. #6 0x00007fb95681f05f in PyEval_EvalCodeEx () from /usr/lib/libpython2.7.so.1.0 No symbol table info available. #7 0x00007fb9567a797b in ?? () from /usr/lib/libpython2.7.so.1.0 No symbol table info available. #8 0x00007fb95677f073 in PyObject_Call () from /usr/lib/libpython2.7.so.1.0 No symbol table info available. #9 0x00007fb956790852 in ?? () from /usr/lib/libpython2.7.so.1.0 No symbol table info available. #10 0x00007fb95677f073 in PyObject_Call () from /usr/lib/libpython2.7.so.1.0 No symbol table info available. #11 0x00007fb956817908 in PyEval_CallObjectWithKeywords () from /usr/lib/libpython2.7.so.1.0 No symbol table info available. #12 0x00007fb95695cd43 in apy_exec (_msg=_msg@entry=0x7fb95740d408, fname=0x7fb9573407d0 "group_lookup", fparam=0x7fb9572ae430 "1234", emode=emode@entry=1) at python_exec.c:145 pFunc = 0x7fb95161f550 pArgs = 0x7fb951b8a460 pValue = <optimized out> pResult = <optimized out> pmsg = 0x7fb9521ed250 rval = -1 bmsg = 0x0 mpid = <optimized out> locked = 1 gstate = PyGILState_LOCKED gstate_init = 1 __func__ = "apy_exec" #13 0x00007fb95695e3f1 in python_exec2 (_msg=0x7fb95740d408, method_name=<optimized out>, mystr=0x7fb957340958 "\350\b4W\271\177") at python_exec.c:202 method = {s = 0x7fb9573407d0 "group_lookup", len = 12} param = {s = 0x7fb9572ae430 "1234", len = 4} __func__ = "python_exec2" #14 0x00005608e8f5dca6 in do_action (h=h@entry=0x7fffcf4cbe10, a=a@entry=0x7fb9573457b0, msg=msg@entry=0x7fb95740d408) at core/action.c:1079 --Type <RET> for more, q to quit, c to continue without paging-- ret = <optimized out> v = <optimized out> dst = {send_sock = 0x7fb95740d408, to = {s = {sa_family = 48656, sa_data = "L\317\377\177\000\000\320\257L\317\377\177\000"}, sin = {sin_family = 48656, sin_port = 53068, sin_addr = {s_addr = 32767}, sin_zero = "\320\257L\317\377\177\000"}, sin6 = {sin6_family = 48656, sin6_port = 53068, sin6_flowinfo = 32767, sin6_addr = {__in6_u = { __u6_addr8 = "\320\257L\317\377\177\000\000\063\206#\351\bV\000", __u6_addr16 = {45008, 53068, 32767, 0, 34355, 59683, 22024, 0}, __u6_addr32 = {3477909456, 32767, 3911419443, 22024}}}, sin6_scope_id = 1314372251}, sas = {ss_family = 48656, __ss_padding = "L\317\377\177\000\000\320\257L\317\377\177\000\000\063\206#\351\bV\000\000\233\272WN\277\263|\315\233\272I\271\315\374\222\236\000\000\000\000\271\177\000\000\000z\021Y\372\017\223\221p\351\001R\271\177\000\000\060!5W\271\177\000\000\b\324@W\271\177\000\000\b\324@W\271\177\000\000\020\276L\317\377\177\000\000T\256L\317\377\177\000\000\063\206#\351\bV\000\000\a\361\363\350\bV\000", __ss_align = 32767}}, id = 1375842960, send_flags = {f = 32697, blst_imask = 0}, proto = 112 'p', proto_pad0 = -23 '\351', proto_pad1 = 20993} tmp = <optimized out> new_uri = <optimized out> end = <optimized out> crt = <optimized out> cmd = <optimized out> len = <optimized out> user = <optimized out> uri = {user = {s = 0x0, len = -352084160}, passwd = { s = 0x5608eb7f8e80 "77616cfd2e52a8b7b3a76ed9925fc2b46d9d90dcf8c61a357cc8ca71f2bdaae89edf4a3866d9fb4fa72836a6372d479e9159d77e296be22c9f77316b6b9ea82bbcc4a5390665f1b4c96e79cb029865e58","_rev":"1-a7e301322dfc4a87e92331a8cdc"..., len = 1361025360}, host = {s = 0x0, len = 1376876464}, port = {s = 0x5608eb039f40 "", len = 1450939766}, params = {s = 0x5608eb4f6e80 "", len = -347115408}, sip_params = { s = 0x5608eb4f70a0 "8O\006\353\bV", len = -347115904}, headers = {s = 0x5608eb4f7098 "", len = 1450860348}, port_no = 0, proto = 0, type = ERROR_URI_T, flags = (unknown: 3947851768), transport = { s = 0x0, len = 1377179552}, ttl = {s = 0x2 <error: Cannot access memory at address 0x2>, len = 1451355409}, user_param = {s = 0x5608eb039f40 "", len = -347115528}, maddr = { s = 0x5608eb064f38 "\312\001", len = 3}, method = {s = 0x0, len = 1494317568}, lr = {s = 0x0, len = 1463866376}, r2 = {s = 0x7fffcf4cac50 "", len = 1463041960}, gr = {s = 0x5608e92086c7 "corefunc", len = -382461728}, transport_val = {s = 0x5608e9238633 "", len = -386544358}, ttl_val = {s = 0x7fffcf4cac50 "", len = 1463041960}, user_param_val = {s = 0x7fb95740d408 "\003", len = 1450867067}, maddr_val = {s = 0x0, len = 0}, method_val = {s = 0x0, len = 0}, lr_val = {s = 0x0, len = 1369901328}, r2_val = {s = 0x100000000 <error: Cannot access memory at address 0x100000000>, len = -817058640}, gr_val = {s = 0x7fb957c10520 <_nl_C_LC_CTYPE> "v\373\275W\271\177", len = 1494317568}} next_hop = {user = {s = 0x7fb957c10520 <_nl_C_LC_CTYPE> "v\373\275W\271\177", len = 1452408776}, passwd = {s = 0x7fb9512be6d0 "\001", len = 1450866928}, host = {s = 0x7fb951a70910 "\001", len = 1494317568}, port = {s = 0x7fb952019950 "\004", len = -817054192}, params = {s = 0x0, len = 1463866376}, sip_params = {s = 0x7fffcf4cbe10 "\003", len = -817058220}, headers = { s = 0x5608e9238633 "", len = -386485865}, port_no = 0, proto = 0, type = ERROR_URI_T, flags = (URI_USER_NORMALIZE | URI_SIP_USER_PHONE | unknown: 4294967292), transport = {s = 0x0, len = 0}, ttl = { s = 0x0, len = 0}, user_param = {s = 0x7fffcf4cae54 "", len = -383547853}, maddr = {s = 0xcd7cb3bf4bd7ba9b <error: Cannot access memory at address 0xcd7cb3bf4bd7ba9b>, len = -1186350437}, method = { s = 0x7fb900000000 <error: Cannot access memory at address 0x7fb900000000>, len = 0}, lr = {s = 0x0, len = 0}, r2 = {s = 0x7fb95740d408 "\003", len = 1}, gr = {s = 0x0, len = 0}, transport_val = { s = 0x0, len = 0}, ttl_val = {s = 0x0, len = 0}, user_param_val = {s = 0x0, len = 1494317568}, maddr_val = {s = 0x7fb95740d408 "\003", len = 1462860840}, method_val = {s = 0x7fb95740d408 "\003", len = 1494317568}, lr_val = {s = 0x7fb957317c40 "", len = 1463099704}, r2_val = {s = 0x7fffcf4cae54 "", len = 1494317568}, gr_val = {s = 0x7fffcf4cbe10 "\003", len = -817054192}} u = <optimized out> port = <optimized out> dst_host = <optimized out> i = <optimized out> flags = 22024 avp = <optimized out> st = {flags = 1472267552, id = 32697, name = {n = 1452408776, s = {s = 0x7fb95691ffc8 <_PyThreadState_Current> "@\237\003\353\bV", len = 1361831632}, re = 0x7fb95691ffc8 <_PyThreadState_Current>}, avp = 0x7fb9567a78f0} sct = <optimized out> sjt = <optimized out> rve = <optimized out> mct = <optimized out> rv = 0x7fb95688ba80 rv1 = <optimized out> c1 = {cache_type = 3477913104, val_type = 32767, c = {avp_val = {n = -817057840, s = {s = 0x7fffcf4cafd0 "\001", len = -383547853}, re = 0x7fffcf4cafd0}, pval = {rs = {s = 0x7fffcf4cafd0 "\001", len = -383547853}, ri = -386485865, flags = 22024}}, i2s = "\000\000\000\000\000\000\000\000\001\000\000\000\271\177\000\000\020\276L\317\377\177"} s = {s = 0x7fb9511e7910 "\002", len = 1360951568} srevp = {0x0, 0x7fb95740d408} evp = {data = 0x0, obuf = {s = 0x0, len = 0}, rcv = 0x0, dst = 0x0, req = 0x0, rpl = 0x0, rplcode = 0, mode = 0} mod_f_params = {{type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = { number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = { s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}} __func__ = "do_action" #15 0x00005608e8f5cd1a in run_actions (h=h@entry=0x7fffcf4cbe10, a=0x7fb957345578, msg=msg@entry=0x7fb95740d408) at core/action.c:1584 t = 0x7fb9573457b0 ret = <optimized out> --Type <RET> for more, q to quit, c to continue without paging-- tvb = {tv_sec = 0, tv_usec = 0} tve = {tv_sec = 0, tv_usec = 0} tz = {tz_minuteswest = 0, tz_dsttime = 0} tdiff = <optimized out> __func__ = "run_actions" #16 0x00005608e8f5f560 in do_action (h=h@entry=0x7fffcf4cbe10, a=a@entry=0x7fb95734c3a0, msg=msg@entry=0x7fb95740d408) at core/action.c:1074 ret = <optimized out> v = <optimized out> dst = {send_sock = 0x7fb95740d408, to = {s = {sa_family = 48656, sa_data = "L\317\377\177\000\000 \267L\317\377\177\000"}, sin = {sin_family = 48656, sin_port = 53068, sin_addr = {s_addr = 32767}, sin_zero = " \267L\317\377\177\000"}, sin6 = {sin6_family = 48656, sin6_port = 53068, sin6_flowinfo = 32767, sin6_addr = {__in6_u = {__u6_addr8 = " \267L\317\377\177\000\000\063\206#\351\bV\000", __u6_addr16 = {46880, 53068, 32767, 0, 34355, 59683, 22024, 0}, __u6_addr32 = {3477911328, 32767, 3911419443, 22024}}}, sin6_scope_id = 2033695387}, sas = {ss_family = 48656, __ss_padding = "L\317\377\177\000\000 \267L\317\377\177\000\000\063\206#\351\bV\000\000\233\272\067y\277\263|\315\233\272I\271\315\374\222\236\000\000\000\000\bV\000\000\234\000\000\000\000\000\000\000\b\324@W\271\177\000\000x\332\061W\271\177\000\000\b\324@W\271\177\000\000\000\000\000\000\000\000\000\000\020\276L\317\377\177\000\000\300\265L\317\377\177\000\000\300\264L\317\377\177\000\000\000z\021Y\372\017\223\221", __ss_align = 30064771075}}, id = 9, send_flags = {f = 17, blst_imask = 0}, proto = 4 '\004', proto_pad0 = 0 '\000', proto_pad1 = 0} tmp = <optimized out> new_uri = <optimized out> end = <optimized out> crt = <optimized out> cmd = <optimized out> len = <optimized out> user = <optimized out> uri = {user = {s = 0x0, len = 1451028260}, passwd = {s = 0x0, len = 1375450128}, host = { s = 0x7fb9567bdfd0 <PyCFunction_Call> "AUATUSH\211\373H\203\354\bH\213G\020L\213o\030L\213`\b\213@\020\203\340\217\203\370\bw4H\211\327H\211\365H\215\025\377A\v", len = -817057520}, port = { s = 0x5608eb0374a8 "", len = 0}, params = {s = 0x5608eb0374a7 "3", len = 1}, sip_params = {s = 0x7fb957bdf490 "%hu%n:%hu%n:%hu%n", len = -352095065}, headers = {s = 0x5608eb0374a7 "3", len = 0}, port_no = 45328, proto = 53068, type = 32767, flags = (URI_USER_NORMALIZE | URI_SIP_USER_PHONE | unknown: 1470841432), transport = {s = 0x7fffcf4cb120 "\250t\003\353\bV", len = 16}, ttl = { s = 0x7fffcf4cb2d0 "\340\071\301W\271\177", len = -817057280}, user_param = {s = 0x7ffffbad8001 <error: Cannot access memory at address 0x7ffffbad8001>, len = -352095064}, maddr = { s = 0x5608eb0374a8 "", len = -352095065}, method = {s = 0x5608eb0374a7 "3", len = 1494317568}, lr = {s = 0x5608eb0374a7 "3", len = 1463866376}, r2 = {s = 0x7fffcf4cb3a0 "", len = 1462899544}, gr = { s = 0x5608e92086c7 "corefunc", len = -382461728}, transport_val = {s = 0x5608e9238633 "", len = -386544358}, ttl_val = {s = 0x7fffcf4cb3a0 "", len = 1462899544}, user_param_val = { s = 0x7fb95740d408 "\003", len = 8180}, maddr_val = {s = 0x7fffcf4cb440 "\003", len = 1472269024}, method_val = {s = 0x7fffcf4cb3bf "2\b\324@W\271\177", len = -352104480}, lr_val = { s = 0x900000000 <error: Cannot access memory at address 0x900000000>, len = 1}, r2_val = {s = 0x1 <error: Cannot access memory at address 0x1>, len = 1494317568}, gr_val = { s = 0x7fb9ffffffff <error: Cannot access memory at address 0x7fb9ffffffff>, len = 1472287680}} next_hop = {user = {s = 0x0, len = 1472287680}, passwd = {s = 0x330000000000 <error: Cannot access memory at address 0x330000000000>, len = 1494317568}, host = {s = 0x7fffcf4cb2e2 "", len = -817057048}, port = {s = 0x7fffcf4cb2e4 "", len = -817057048}, params = {s = 0x7fb957c16cc0 <tz_rules+64> "", len = -817057048}, sip_params = {s = 0x7fffcf4cb4c8 "0", len = 1460313105}, headers = {s = 0x800000 <error: Cannot access memory at address 0x800000>, len = 15}, port_no = 2060, proto = 60285, type = 22024, flags = (unknown: 3950839820), transport = {s = 0x0, len = 0}, ttl = {s = 0x0, len = 0}, user_param = {s = 0x7fb957c127c0 <_nl_C_locobj> " \005\301W\271\177", len = 1471268632}, maddr = { s = 0x3132373230303228 <error: Cannot access memory at address 0x3132373230303228>, len = 8187}, method = {s = 0x7fffcf4cb440 "\003", len = 177}, lr = {s = 0x5608eb7d07f0 "", len = 176}, r2 = { s = 0x7fb957c139e0 <main_arena> "", len = -344119296}, gr = {s = 0x0, len = 1471040194}, transport_val = {s = 0x62834997 <error: Cannot access memory at address 0x62834997>, len = 24}, ttl_val = { s = 0x7fffcf4cb3d0 " \267L\317\377\177", len = 1472281056}, user_param_val = {s = 0x5608eb7d0800 "", len = 157}, maddr_val = {s = 0x7fffcf4cb4c8 "0", len = -344127504}, method_val = { s = 0x2010 <error: Cannot access memory at address 0x2010>, len = 1471044278}, lr_val = {s = 0x7fb957c139e0 <main_arena> "", len = -817056856}, r2_val = { s = 0x12 <error: Cannot access memory at address 0x12>, len = 1494317568}, gr_val = {s = 0x5608eb35cf20 "\220\002\066\353\bV", len = -817054192}} u = <optimized out> port = <optimized out> dst_host = <optimized out> i = <optimized out> flags = 32697 avp = <optimized out> st = {flags = 0, id = 0, name = {n = 1472287680, s = {s = 0x7fb957c153c0 <_IO_str_jumps> "", len = 0}, re = 0x7fb957c153c0 <_IO_str_jumps>}, avp = 0x91930ffa59117a00} sct = <optimized out> sjt = <optimized out> rve = <optimized out> mct = <optimized out> rv = 0x7fb951fbb410 rv1 = <optimized out> c1 = {cache_type = 3477913104, val_type = 32767, c = {avp_val = {n = -817055968, s = {s = 0x7fffcf4cb720 "\001", len = -383547853}, re = 0x7fffcf4cb720}, pval = {rs = {s = 0x7fffcf4cb720 "\001", len = -383547853}, ri = -386485865, flags = 22024}}, i2s = "\000\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\020\276L\317\377\177"} s = {s = 0x7fb9567bdfd0 <PyCFunction_Call> "AUATUSH\211\373H\203\354\bH\213G\020L\213o\030L\213`\b\213@\020\203\340\217\203\370\bw4H\211\327H\211\365H\215\025\377A\v", len = 1376090576} srevp = {0x0, 0x7fb95740d408} evp = {data = 0x0, obuf = {s = 0x0, len = 0}, rcv = 0x0, dst = 0x0, req = 0x0, rpl = 0x0, rplcode = 0, mode = 0} mod_f_params = {{type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = { --Type <RET> for more, q to quit, c to continue without paging-- number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = { s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}} __func__ = "do_action" #17 0x00005608e8f5cd1a in run_actions (h=h@entry=0x7fffcf4cbe10, a=0x7fb95734c3a0, msg=msg@entry=0x7fb95740d408) at core/action.c:1584 t = 0x7fb95734c3a0 ret = <optimized out> tvb = {tv_sec = 0, tv_usec = 0} tve = {tv_sec = 0, tv_usec = 0} tz = {tz_minuteswest = 1462850328, tz_dsttime = 32697} tdiff = <optimized out> __func__ = "run_actions" #18 0x00005608e8f5e1c5 in do_action (h=h@entry=0x7fffcf4cbe10, a=a@entry=0x7fb957323c38, msg=msg@entry=0x7fb95740d408) at core/action.c:703 ret = <optimized out> v = <optimized out> dst = {send_sock = 0x10, to = {s = {sa_family = 31232, sa_data = "\021Y\372\017\223\221Y\001\000\000\000\000\000"}, sin = {sin_family = 31232, sin_port = 22801, sin_addr = {s_addr = 2442334202}, sin_zero = "Y\001\000\000\000\000\000"}, sin6 = {sin6_family = 31232, sin6_port = 22801, sin6_flowinfo = 2442334202, sin6_addr = {__in6_u = { __u6_addr8 = "Y\001\000\000\000\000\000\000l\006\023\351\bV\000", __u6_addr16 = {345, 0, 0, 0, 1644, 59667, 22024, 0}, __u6_addr32 = {345, 0, 3910338156, 22024}}}, sin6_scope_id = 16}, sas = { ss_family = 31232, __ss_padding = "\021Y\372\017\223\221Y\001\000\000\000\000\000\000l\006\023\351\bV\000\000\020\000\000\000\000\000\000\000\004\300\037\351\bV\000\000\320z7W\271\177\000\000\250\000\000\000\000\000\000\000(z7W\271\177\000\000\001\000\000\000\bV\000\000\001\000\000\000\000\000\000\000\276", '\000' <repeats 11 times>, "\267\002", '\000' <repeats 19 times>, "z\021Y\372\017\223\221", __ss_align = 0}}, id = 6, send_flags = {f = 0, blst_imask = 0}, proto = 0 '\000', proto_pad0 = 0 '\000', proto_pad1 = 0} tmp = <optimized out> new_uri = <optimized out> end = <optimized out> crt = <optimized out> cmd = <optimized out> len = <optimized out> user = <optimized out> uri = {user = {s = 0x0, len = 1463255000}, passwd = {s = 0x7fb957375bc8 "", len = 0}, host = {s = 0x0, len = 0}, port = {s = 0x7fb957375c70 "\021", len = 0}, params = {s = 0x7fb957375dc0 "\v", len = 0}, sip_params = {s = 0x0, len = 0}, headers = {s = 0x0, len = 1463244928}, port_no = 0, proto = 0, type = ERROR_URI_T, flags = (unknown: 0), transport = {s = 0x0, len = 0}, ttl = {s = 0x0, len = 0}, user_param = {s = 0x0, len = 0}, maddr = {s = 0x0, len = 0}, method = {s = 0x0, len = 0}, lr = {s = 0x0, len = 1463245264}, r2 = {s = 0x0, len = 1463245096}, gr = {s = 0x0, len = 0}, transport_val = { s = 0x5608eb7aa741 " 695\r\nTH: dih\r\n\r\nv=0\r\no=100101 8000 8000 IN IP4 10.0.1.129\r\ns=SIP Call\r\nc=IN IP4 10.0.1.129\r\nt=0 0\r\nm=audio 50040 RTP/SAVP 0 8 9 101\r\na=sendrecv\r\na=rtcp:50041 IN IP4 10.0.1.129\r\na=rtpmap:0 PCMU/8000\r"..., len = -344283327}, ttl_val = {s = 0x0, len = 0}, user_param_val = {s = 0x0, len = 0}, maddr_val = {s = 0x0, len = 0}, method_val = {s = 0x0, len = 0}, lr_val = {s = 0x0, len = 0}, r2_val = {s = 0x0, len = 0}, gr_val = {s = 0x0, len = 0}} next_hop = {user = {s = 0x0, len = 0}, passwd = {s = 0x0, len = 0}, host = {s = 0x0, len = 0}, port = {s = 0x0, len = 0}, params = {s = 0x0, len = 0}, sip_params = {s = 0x0, len = 0}, headers = { s = 0x5608eb7aa330 "INVITE sips:1234@10.0.1.1:5061 SIP/2.0\r\nVia: SIP/2.0/TLS 10.0.1.129:5060;TH=div;branch=z9hG4bK350560282;rport;alias\r\nFrom: "Node1 Number1" sips:100101@10.0.1.1:5061;tag=1456723635\r\nTo: <sips:1234@10"..., len = 1738}, port_no = 0, proto = 0, type = ERROR_URI_T, flags = (unknown: 0), transport = {s = 0x0, len = 0}, ttl = {s = 0x0, len = 0}, user_param = {s = 0x0, len = 0}, maddr = {s = 0x0, len = 0}, method = {s = 0x0, len = 0}, lr = {s = 0x0, len = 0}, r2 = {s = 0x0, len = 0}, gr = {s = 0x0, len = 0}, transport_val = {s = 0x0, len = 0}, ttl_val = {s = 0x0, len = 0}, user_param_val = {s = 0x0, len = 1494317568}, maddr_val = {s = 0x0, len = -384366071}, method_val = {s = 0x0, len = 84}, lr_val = {s = 0x2 <error: Cannot access memory at address 0x2>, len = 0}, r2_val = {s = 0x0, len = 0}, gr_val = {s = 0x0, len = 1460313105}} u = <optimized out> port = <optimized out> dst_host = <optimized out> i = <optimized out> flags = 0 avp = <optimized out> st = {flags = 0, id = 0, name = {n = 0, s = {s = 0x0, len = 0}, re = 0x0}, avp = 0x0} sct = <optimized out> sjt = <optimized out> rve = <optimized out> mct = <optimized out> rv = 0x1 rv1 = <optimized out> c1 = {cache_type = 1307040, val_type = RV_NONE, c = {avp_val = {n = 1460313105, s = {s = 0x7fb9570a9c11 <pkg_proc_update_stats+65> "Hc\003H\213T$\bH\215\004@H\301\340\004H\003\005", len = 8388608}, re = 0x7fb9570a9c11 <pkg_proc_update_stats+65>}, pval = {rs = {s = 0x7fb9570a9c11 <pkg_proc_update_stats+65> "Hc\003H\213T$\bH\215\004@H\301\340\004H\003\005", len = 8388608}, ri = 6519368, flags = 0}}, i2s = "\320\370\023\000\000\000\000\000\270\205\034\000\000\000\000\000\020\245\034\000\000"} s = {s = 0x7fb9573d3670 "\001", len = 0} srevp = {0x800000, 0x6388c8} --Type <RET> for more, q to quit, c to continue without paging-- evp = {data = 0x0, obuf = {s = 0x0, len = 0}, rcv = 0x0, dst = 0x0, req = 0x0, rpl = 0x0, rplcode = 0, mode = 0} mod_f_params = {{type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = { number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = { s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}} __func__ = "do_action" #19 0x00005608e8f5cd1a in run_actions (h=h@entry=0x7fffcf4cbe10, a=a@entry=0x7fb957310788, msg=msg@entry=0x7fb95740d408) at core/action.c:1584 t = 0x7fb957323c38 ret = <optimized out> tvb = {tv_sec = 0, tv_usec = 0} tve = {tv_sec = 0, tv_usec = 0} tz = {tz_minuteswest = 0, tz_dsttime = 0} tdiff = <optimized out> __func__ = "run_actions" #20 0x00005608e8f6b235 in run_top_route (a=0x7fb957310788, msg=msg@entry=0x7fb95740d408, c=c@entry=0x0) at core/action.c:1669 ctx = {rec_lev = 3, run_flags = 0, last_retcode = 1, jmp_env = {{__jmpbuf = {0, -3639836764189246821, 0, 140434008508296, 140434009543688, 0, -3639836764059223397, -7020270908610069861}, __mask_was_saved = 0, __saved_mask = {__val = {140434005384309, 0, 94596268823528, 0, 0, 0, 0, 0, 10489745524986575360, 140434008930744, 10489745524986575360, 94596272765568, 140433931052912, 140434009543688, 10489745524986575360, 0}}}}} p = 0x7fffcf4cbe10 ret = <optimized out> sfbk = 0 #21 0x00005608e904e89c in receive_msg (buf=<optimized out>, len=<optimized out>, rcv_info=<optimized out>) at core/receive.c:501 msg = 0x7fb95740d408 ctx = {rec_lev = 0, run_flags = 0, last_retcode = 1472281056, jmp_env = {{__jmpbuf = {65536, 4097, 65552, -80, 4095, 140434016714912, 1, 140434017958464}, __mask_was_saved = 0, __saved_mask = {__val = { 7, 94596301910030, 65536, 140432545677433, 94596301934600, 65584, 1024, 4604204945409, 2, 16, 10489745524986575360, 519691042940, 140433931053816, 140433931052888, 140736671302564, 140736671302564}}}}} bctx = 0x0 ret = <optimized out> tvb = {tv_sec = 0, tv_usec = 0} tve = {tv_sec = 0, tv_usec = 0} diff = 0 inb = { s = 0x5608eb7aa330 "INVITE sips:1234@10.0.1.1:5061 SIP/2.0\r\nVia: SIP/2.0/TLS 10.0.1.129:5060;TH=div;branch=z9hG4bK350560282;rport;alias\r\nFrom: "Node1 Number1" sips:100101@10.0.1.1:5061;tag=1456723635\r\nTo: <sips:1234@10"..., len = 1754} netinfo = {data = {s = 0x0, len = 0}, rcv = 0x0, dst = 0x0} keng = 0x0 evp = {data = 0x7fffcf4cbf70, obuf = {s = 0x0, len = 0}, rcv = 0x7fb952932770, dst = 0x0, req = 0x0, rpl = 0x0, rplcode = 0, mode = 0} cidlockidx = 0 cidlockset = 0 errsipmsg = 0 exectime = 0 __func__ = "receive_msg" #22 0x00005608e90ecf62 in receive_tcp_msg ( tcpbuf=0x7fb952932af8 "INVITE sips:1234@10.0.1.1:5061 SIP/2.0\r\nVia: SIP/2.0/TLS 10.0.1.129:5060;branch=z9hG4bK350560282;rport;alias\r\nFrom: "Node1 Number1" sips:100101@10.0.1.1:5061;tag=1456723635\r\nTo: <sips:1234@10.0.1.1:"..., len=1738, rcv_info=0x7fb952932770, con=con@entry=0x7fb952932758) at core/tcp_read.c:1424 buf = 0x5608eb7aa330 "INVITE sips:1234@10.0.1.1:5061 SIP/2.0\r\nVia: SIP/2.0/TLS 10.0.1.129:5060;TH=div;branch=z9hG4bK350560282;rport;alias\r\nFrom: "Node1 Number1" sips:100101@10.0.1.1:5061;tag=1456723635\r\nTo: <sips:1234@10"... bsize = 65535 blen = <optimized out> __func__ = "receive_tcp_msg" #23 0x00005608e90ed3db in tcp_read_req (con=0x7fb952932758, bytes_read=bytes_read@entry=0x7fffcf4cc39c, read_flags=read_flags@entry=0x7fffcf4cc3a4) at core/tcp_read.c:1607 bytes = <optimized out> total_bytes = 1738 resp = 1 size = <optimized out> req = 0x7fb952932880 dst = {send_sock = 0x7fffcf4cc2d0, to = {s = {sa_family = 32855, sa_data = "\017\351\bV\000\000\340\302L\317\377\177\000"}, sin = {sin_family = 32855, sin_port = 59663, sin_addr = {s_addr = 22024}, sin_zero = "\340\302L\317\377\177\000"}, sin6 = {sin6_family = 32855, sin6_port = 59663, sin6_flowinfo = 22024, sin6_addr = {__in6_u = { __u6_addr8 = "\340\302L\317\377\177\000\000\030\000\000\000\000\000\000", __u6_addr16 = {49888, 53068, 32767, 0, 24, 0, 0, 0}, __u6_addr32 = {3477914336, 32767, 24, 0}}}, sin6_scope_id = 0}, --Type <RET> for more, q to quit, c to continue without paging-- sas = {ss_family = 32855, __ss_padding = "\017\351\bV\000\000\340\302L\317\377\177\000\000\030", '\000' <repeats 15 times>, "\220$l\353\bV\000\000\000\000\000\000\002\000\000\000\002", '\000' <repeats 11 times>, "\001 \000\000\320VAW\271\177\000\000\000\000\000\000\000\000\000\000\021\234\nW\271\177\000\000\000\000\200\000\000\000\000\000h\225c\000\000\000\000\000\250\303L\317\377\177\000\000\b\000\000\000\000\000\000", __ss_align = 20}}, id = 1, send_flags = {f = 1, blst_imask = 0}, proto = 17 '\021', proto_pad0 = 0 '\000', proto_pad1 = 0} c = 0 '\000' ret = <optimized out> __func__ = "tcp_read_req" #24 0x00005608e90f26ab in handle_io (fm=<optimized out>, events=<optimized out>, idx=-1) at core/tcp_read.c:1857 ret = 327 n = 1541 read_flags = RD_CONN_SHORT_READ con = 0x7fb952932758 s = 17 resp = <optimized out> t = <optimized out> ee = 0x0 __func__ = "handle_io" #25 0x00005608e90f6fee in io_wait_loop_epoll (repeat=repeat@entry=0, t=2, h=0x5608e940a120 <io_w>) at core/io_wait.h:1069 n = 1 r = 0 fm = 0x7fb9574156d0 revents = 1 __func__ = "io_wait_loop_epoll" #26 0x00005608e90fa6ef in tcp_receive_loop (unix_sock=<optimized out>) at core/tcp_read.c:1978 __func__ = "tcp_receive_loop" #27 0x00005608e8fdbe9a in tcp_init_children (woneinit=0x7fffcf4cc88c) at core/tcp_main.c:5153 r = <optimized out> i = <optimized out> reader_fd_1 = 52 pid = <optimized out> si_desc = "tcp receiver (generic)\000\000\001", '\000' <repeats 15 times>, "\034\061\001\351\bV\000\000(\023@W\271\177\000\000\001", '\000' <repeats 15 times>, "\354Y\v\351\bV\000\000\000\000&R\271\177\000\000\004\000\000\000\000\000\000\000$\300\037\351\bV\000\000\250\000 \351\bV\000\000\004\300\037\351\bV\000\000\rI\023\351\bV\000" si = <optimized out> __func__ = "tcp_init_children" #28 0x00005608e8f28203 in main_loop () at main.c:1857 i = <optimized out> pid = <optimized out> si = <optimized out> si_desc = "udp receiver child=7 sock=10.0.1.1:5060\000\000\000\000\000\bV\000\000\277\350`V\271\177\000\000\022\000\000\000\377\177\000\000\000\000\000\000\000\000\000\000\361\064\001\351\bV\000\000\200\313\245W\271\177\000\000\000z\021Y\372\017\223\221\000\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000HdA\351\bV\000\000@dA\351\bV\000" nrprocs = <optimized out> woneinit = 1 __func__ = "main_loop" #29 0x00005608e8f1ea04 in main (argc=<optimized out>, argv=<optimized out>) at main.c:3053 cfg_stream = <optimized out> c = <optimized out> r = <optimized out> tmp = 0x7fffcf4cee2c "" tmp_len = 1473862992 port = 32697 proto = 0 ahost = 0x0 aport = 0 options = 0x5608e91fea78 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:" ret = -1 seed = 2003480732 rfd = <optimized out> debug_save = <optimized out> debug_flag = <optimized out> dont_fork_cnt = <optimized out> --Type <RET> for more, q to quit, c to continue without paging-- n_lst = <optimized out> p = <optimized out> st = {st_dev = 24, st_ino = 23868433, st_nlink = 2, st_mode = 16832, st_uid = 999, st_gid = 999, __pad0 = 0, st_rdev = 0, st_size = 40, st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1652771183, tv_nsec = 782356937}, st_mtim = {tv_sec = 1652771193, tv_nsec = 677508981}, st_ctim = {tv_sec = 1652771193, tv_nsec = 677508981}, __glibc_reserved = {0, 0, 0}} tbuf = "\000\000\000\000\000\000\000\000PQ\333W\271\177\000\000\370\377\377\377\377\377\377\377\b\025\332W\271\177\000\000`\315L\317\377\177\000\000E\345\330W\271\177", '\000' <repeats 26 times>, "\001\000\000\000\000\000\000\000\000W\333W\271\177\000\000\200\313\245W\271\177\000\000 \314L\317\377\177\000\000\001\314L\317\377\177\000\000\260I\333W\271\177", '\000' <repeats 42 times>, "\030\202V\317\377\177", '\000' <repeats 14 times>, " ", '\000' <repeats 27 times>... option_index = 0 long_options = {{name = 0x5608e91fd259 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x5608e92007a9 "version", has_arg = 0, flag = 0x0, val = 118}, {name = 0x5608e92317c2 "alias", has_arg = 1, flag = 0x0, val = 1024}, {name = 0x5608e91fd25e "subst", has_arg = 1, flag = 0x0, val = 1025}, {name = 0x5608e91fd264 "substdef", has_arg = 1, flag = 0x0, val = 1026}, { name = 0x5608e91fd26d "substdefs", has_arg = 1, flag = 0x0, val = 1027}, {name = 0x5608e91fd277 "server-id", has_arg = 1, flag = 0x0, val = 1028}, {name = 0x5608e91fd281 "loadmodule", has_arg = 1, flag = 0x0, val = 1029}, {name = 0x5608e91fd28c "modparam", has_arg = 1, flag = 0x0, val = 1030}, {name = 0x5608e91fd295 "log-engine", has_arg = 1, flag = 0x0, val = 1031}, { name = 0x5608e92008b9 "debug", has_arg = 1, flag = 0x0, val = 1032}, {name = 0x5608e91fd2a0 "cfg-print", has_arg = 0, flag = 0x0, val = 1033}, {name = 0x5608e91fd2aa "atexit", has_arg = 1, flag = 0x0, val = 1034}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} __func__ = "main"

(gdb) info locals val = {n = 1451801216, s = { s = 0x7fb95688ba80 "\307\356\370\377\243\356\370\377\226\356\370\377\v\356\370\377\354\356\370\377\027%\371\377\t%\371\377\373$\371\377\355$\371\377d&\371\377j%\371\377\341\355\370\377\341\355\370\377\202\356\370\377\367\355\370\377", len = 1371188816}, re = 0x7fb95688ba80} ret = <optimized out> avp = <optimized out> pv_val = {rs = { s = 0x7fb95688ba80 "\307\356\370\377\243\356\370\377\226\356\370\377\v\356\370\377\354\356\370\377\027%\371\377\t%\371\377\373$\371\377\355$\371\377d&\371\377j%\371\377\341\355\370\377\341\355\370\377\202\356\370\377\367\355\370\377", len = 1371188816}, ri = 1371188816, flags = 32697} __func__ = "get_str_fparam"

```

#### Log Messages

<!-- Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site). -->

``` May 17 09:07:06 ttel /usr/sbin/kamailio[2002728]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 48 May 17 09:07:06 ttel /usr/sbin/kamailio[2002683]: ALERT: <core> [main.c:788]: handle_sigs(): child process 2002721 exited by a signal 11 May 17 09:07:06 ttel /usr/sbin/kamailio[2002683]: ALERT: <core> [main.c:791]: handle_sigs(): core was generated May 17 09:07:06 ttel /usr/sbin/kamailio[2002683]: INFO: <core> [main.c:813]: handle_sigs(): terminating due to SIGCHLD ```

### Possible Solutions

<!-- If you found a solution or workaround for the issue, describe it. Ideally, provide a pull request with a fix. -->

If I set a value for the optional parameter q, the forking works as expected `msg.call_function('append_branch', ruri, "1")`. Without the q parameter, it segfaults.

### Additional Information

* **Kamailio Version** - output of `kamailio -v`

``` kamailio -v version: kamailio 5.5.4 (x86_64/linux) 54c9df flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 54c9df compiled on 10:01:05 Feb 17 2022 with x86_64-poky-linux-gcc 9.3.0 ```

* **Operating System**:

<!-- Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...; Kernel details (output of `lsb_release -a` and `uname -a`) -->

``` Linux ttel 5.4.172-yocto-standard #1 SMP PREEMPT Mon Jan 17 19:47:33 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux ```