### Description
We are using kamailio as P-CSCF and its time 2 time crashing only on production Envoirnmnet with sig11 and sig6.
### Troubleshooting
As my little understanding, issue is with core/timer.c for signal 11 crash and ims_qos for sig6.
#### Reproduction
Issue only occour on our Production envoirnmnet. I dont have reproduction steps.
#### Debugging Data
Sig 11 ``` Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/local/sbin/kamailio -f /usr/local/etc/kamailio_pcscf/kamailio.cfg -P /var/'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00000000006a16fc in timer_list_expire (t=1339518316, h=0x7facee484fd0, slow_l=0x7facee488208, slow_mark=7936) at core/timer.c:846 846 _timer_rm_list(tl); /* detach */ (gdb) bt #0 0x00000000006a16fc in timer_list_expire (t=1339518316, h=0x7facee484fd0, slow_l=0x7facee488208, slow_mark=7936) at core/timer.c:846 #1 0x00000000006a1c19 in timer_handler () at core/timer.c:922 #2 0x00000000006a20ba in timer_main () at core/timer.c:961 #3 0x000000000042ac0a in main_loop () at main.c:1753 #4 0x000000000043400c in main (argc=13, argv=0x7ffc256fe358) at main.c:2856 (gdb) bt full #0 0x00000000006a16fc in timer_list_expire (t=1339518316, h=0x7facee484fd0, slow_l=0x7facee488208, slow_mark=7936) at core/timer.c:846 tl = 0x7facf048e1b8 ret = 0 #1 0x00000000006a1c19 in timer_handler () at core/timer.c:922 saved_ticks = 1339518316 run_slow_timer = 0 i = 768 __FUNCTION__ = "timer_handler" #2 0x00000000006a20ba in timer_main () at core/timer.c:961 No locals. #3 0x000000000042ac0a in main_loop () at main.c:1753 i = 32 pid = 0 si = 0x0 si_desc = "udp receiver child=31 sock=10.161.224.211:5060", '\000' <repeats 11 times>, "\354\325K\346\060\375\350\003\000\000\000\314\000\000\000\365k\000\000\000\000\000\000P\272A\000\000\000\000\000P\343o%\374\177", '\000' <repeats 18 times>, "\320\335o%\374\177\000\000\215\006Z\000\000\000\000" nrprocs = 32 woneinit = 1 __FUNCTION__ = "main_loop" #4 0x000000000043400c in main (argc=13, argv=0x7ffc256fe358) at main.c:2856 cfg_stream = 0x2674010 c = -1 r = 0 tmp = 0x7ffc256fff2c "" tmp_len = 32685 port = -1767840736 proto = 32685 ahost = 0x0 aport = 0 options = 0x7e2058 ":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 = 1101782887 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x7fad96a1d5f7 p = 0x7fad96a0e77c "free" st = {st_dev = 17, st_ino = 15237, st_nlink = 2, st_mode = 16877, st_uid = 105, st_gid = 112, __pad0 = 0, st_rdev = 0, st_size = 120, st_blksize = 4096, st_blocks = 0, st_atim = { tv_sec = 1607000056, tv_nsec = 100000000}, st_mtim = {tv_sec = 1607002632, tv_nsec = 716000000}, st_ctim = {tv_sec = 1607003887, tv_nsec = 44000000}, __glibc_reserved = {0, 0, 0}} tbuf = "\000\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\210'Ö\255\177\000\000\030\207\241\226\255\177\000\000\000\000\000\000\000\000\000\000\220\340o%\374\177\000\000`\261w%\374\177\000\000\240\341o%\374\177\000\000رw%\374\177\000\000\220\341o%\374\177\000\000\000\000\000\000\000\000\000\000<\177\241\226\255\177\000\000\000\000\000\000\000\000\000\000.N=\366\000\000\000\000\004\000\000\000\000\000\000\000\006\000\000\000\000\000\000\000\250u\302\226\255\177\000\000\266\210\241\226\255\177", '\000' <repeats 11 times>, "\341o%\374\177\000\000\060=\362\225\255\177\000\000\020\342o%\374\177\000\000\370\001\363\225\255\177\000\000\070\365\330\003\000\000\000\000\000\342o%\374\177\000\000\350*Ö"... option_index = 0 long_options = {{name = 0x7e424f "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x7df854 "version", has_arg = 0, flag = 0x0, val = 118}, {name = 0x7e4254 "alias", has_arg = 1, flag = 0x0, val = 1024}, {name = 0x7e425a "subst", has_arg = 1, flag = 0x0, val = 1025}, {name = 0x7e4260 "substdef", has_arg = 1, flag = 0x0, val = 1026}, { name = 0x7e4269 "substdefs", has_arg = 1, flag = 0x0, val = 1027}, {name = 0x7e4273 "server-id", has_arg = 1, flag = 0x0, val = 1028}, {name = 0x7e427d "loadmodule", has_arg = 1, flag = 0x0, val = 1029}, {name = 0x7e4288 "modparam", has_arg = 1, flag = 0x0, val = 1030}, {name = 0x7e4291 "log-engine", has_arg = 1, flag = 0x0, val = 1031}, { name = 0x7e429c "debug", has_arg = 1, flag = 0x0, val = 1032}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} __FUNCTION__ = "main" (gdb) ``` Sig 6:
``` Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/local/sbin/kamailio -f /usr/local/etc/kamailio_pcscf/kamailio.cfg -P /var/'. Program terminated with signal SIGABRT, Aborted. #0 0x00007fad95f56c37 in raise () from /lib/x86_64-linux-gnu/libc.so.6 (gdb) bt #0 0x00007fad95f56c37 in raise () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007fad95f5a028 in abort () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x000000000041e39d in sig_alarm_abort (signo=14) at main.c:687 #3 <signal handler called> #4 0x00007fad960183c7 in syscall () from /lib/x86_64-linux-gnu/libc.so.6 #5 0x00007fad6f5c024b in futex_get (lock=0x7facee70baa0) at ../../core/mem/../futexlock.h:121 #6 0x00007fad6f5c2167 in get_peer_by_fqdn (fqdn=0x7faceeb377b0) at peermanager.c:240 #7 0x00007fad6f5e6c31 in get_first_connected_route (cdp_session=0x7faceeb37768, r=0x7facee70a220, app_id=16777236, vendor_id=10415) at routing.c:110 #8 0x00007fad6f5ea8b2 in get_routing_peer (cdp_session=0x7faceeb37768, m=0x7facef617fb0) at routing.c:272 #9 0x00007fad6f5ac72d in AAASendMessage (message=0x7facef617fb0, callback_f=0x0, callback_param=0x0) at diameter_comm.c:137 #10 0x00007fad6ef05dbb in rx_send_str (rx_session_id=0x7facf0849d50) at rx_str.c:157 #11 0x00007fad6eeb25c4 in callback_dialog (dlg=0x7facf0036d70, type=8192, params=0x7fad72b2a1c0 <params>) at ims_qos_mod.c:453 #12 0x00007fad728973af in run_dlg_callbacks (type=8192, dlg=0x7facf0036d70, req=0x0, rpl=0x0, dir=0, dlg_data=0x0) at dlg_cb.c:274 #13 0x00007fad728d5315 in destroy_dlg (dlg=0x7facf0036d70) at dlg_hash.c:219 #14 0x00007fad728d5b1b in destroy_dlg_table () at dlg_hash.c:291 #15 0x00007fad7290b71e in mod_destroy () at ims_dialog.c:627 #16 0x0000000000616ae1 in destroy_modules () at core/sr_module.c:746 #17 0x000000000041ce17 in cleanup (show_status=1) at main.c:563 #18 0x000000000041e6ef in shutdown_children (sig=15, show_status=1) at main.c:706 #19 0x0000000000421755 in handle_sigs () at main.c:806 #20 0x000000000042bc85 in main_loop () at main.c:1817 #21 0x000000000043400c in main (argc=13, argv=0x7ffc256fe358) at main.c:2856 (gdb) bt full #0 0x00007fad95f56c37 in raise () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007fad95f5a028 in abort () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #2 0x000000000041e39d in sig_alarm_abort (signo=14) at main.c:687 __FUNCTION__ = "sig_alarm_abort" #3 <signal handler called> No symbol table info available. #4 0x00007fad960183c7 in syscall () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #5 0x00007fad6f5c024b in futex_get (lock=0x7facee70baa0) at ../../core/mem/../futexlock.h:121 v = 1 i = 0 #6 0x00007fad6f5c2167 in get_peer_by_fqdn (fqdn=0x7faceeb377b0) at peermanager.c:240 i = 0x7f4d8a #7 0x00007fad6f5e6c31 in get_first_connected_route (cdp_session=0x7faceeb37768, r=0x7facee70a220, app_id=16777236, vendor_id=10415) at routing.c:110 peers = {0x7facee9f4870, 0x18, 0x1, 0x0, 0x102ef763ea8, 0xc, 0x0, 0x11b00000000, 0x0, 0x7facef617fb0, 0x7facf0a3f2d0, 0x7facef2b5f90, 0x8, 0x7facee407000, 0x7ffc256fd0d0, 0x7ffc256fd0dc, 0x3007df3d8, 0x7fad6f617680, 0x41b610 syslog@plt, 0x7f4d8a} peer_count = 0 prev_metric = 0 i = 0x1007f4d8a p = 0x7ffc256fcff0 j = 628084656 least_recent_time = 7234707 time_spec = {tv_sec = 140382874676976, tv_nsec = 1569531277302} __FUNCTION__ = "get_first_connected_route" #8 0x00007fad6f5ea8b2 in get_routing_peer (cdp_session=0x7faceeb37768, m=0x7facef617fb0) at routing.c:272 destination_realm = {s = 0x7facef6d38f0 "isbvpcrf001.zte.com", len = 19} destination_host = {s = 0x0, len = 0} avp = 0x7facef2b5f90 avp_vendor = 0x0 avp2 = 0x0 group = {head = 0x0, tail = 0x0} p = 0x0 rr = 0x0 app_id = 16777236 vendor_id = 10415 __FUNCTION__ = "get_routing_peer" #9 0x00007fad6f5ac72d in AAASendMessage (message=0x7facef617fb0, callback_f=0x0, callback_param=0x0) at diameter_comm.c:137 cdp_session = 0x7faceeb37768 p = 0x7facef7fdce0 __FUNCTION__ = "AAASendMessage" #10 0x00007fad6ef05dbb in rx_send_str (rx_session_id=0x7facf0849d50) at rx_str.c:157 __FUNCTION__ = "rx_send_str" auth = 0x7faceeb37768 str = 0x7facef617fb0 avp = 0x7facef2b5f90 x = "\000\000\000\001" #11 0x00007fad6eeb25c4 in callback_dialog (dlg=0x7facf0036d70, type=8192, params=0x7fad72b2a1c0 <params>) at ims_qos_mod.c:453 msg = 0x0 parsed_cseq = 0x7facee4406c8 rx_session_id = 0x7facf0849d50 ---Type <return> to continue, or q <return> to quit--- auth = 0x0 p_session_data = 0x0 current_fd = 0x0 new_fd = 0x0 current_has_video = 0 new_has_video = 0 must_unlock_aaa = 1 __FUNCTION__ = "callback_dialog" #12 0x00007fad728973af in run_dlg_callbacks (type=8192, dlg=0x7facf0036d70, req=0x0, rpl=0x0, dir=0, dlg_data=0x0) at dlg_cb.c:274 cb = 0x7facf0849e68 __FUNCTION__ = "run_dlg_callbacks" #13 0x00007fad728d5315 in destroy_dlg (dlg=0x7facf0036d70) at dlg_hash.c:219 ret = 0 var = 0x7faceea76348 __FUNCTION__ = "destroy_dlg" #14 0x00007fad728d5b1b in destroy_dlg_table () at dlg_hash.c:291 dlg = 0x0 l_dlg = 0x7facf0036d70 i = 120 __FUNCTION__ = "destroy_dlg_table" #15 0x00007fad7290b71e in mod_destroy () at ims_dialog.c:627 No locals. #16 0x0000000000616ae1 in destroy_modules () at core/sr_module.c:746 t = 0x7fad75fcae18 foo = 0x7fad75fca710 __FUNCTION__ = "destroy_modules" #17 0x000000000041ce17 in cleanup (show_status=1) at main.c:563 memlog = 0 __FUNCTION__ = "cleanup" #18 0x000000000041e6ef in shutdown_children (sig=15, show_status=1) at main.c:706 __FUNCTION__ = "shutdown_children" #19 0x0000000000421755 in handle_sigs () at main.c:806 chld = 0 chld_status = 139 any_chld_stopped = 1 memlog = 0 __FUNCTION__ = "handle_sigs" #20 0x000000000042bc85 in main_loop () at main.c:1817 i = 32 pid = 27887 si = 0x0 si_desc = "udp receiver child=31 sock=10.161.224.211:5060", '\000' <repeats 11 times>, "\354\325K\346\060\375\350\003\000\000\000\314\000\000\000\365k\000\000\000\000\000\000P\272A\000\000\000\000\000P\343o%\374\177", '\000' <repeats 18 times>, "\320\335o%\374\177\000\000\215\006Z\000\000\000\000" nrprocs = 32 woneinit = 1 __FUNCTION__ = "main_loop" #21 0x000000000043400c in main (argc=13, argv=0x7ffc256fe358) at main.c:2856 cfg_stream = 0x2674010 c = -1 r = 0 tmp = 0x7ffc256fff2c "" tmp_len = 32685 ---Type <return> to continue, or q <return> to quit--- port = -1767840736 proto = 32685 ahost = 0x0 aport = 0 options = 0x7e2058 ":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 = 1101782887 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x7fad96a1d5f7 p = 0x7fad96a0e77c "free" st = {st_dev = 17, st_ino = 15237, st_nlink = 2, st_mode = 16877, st_uid = 105, st_gid = 112, __pad0 = 0, st_rdev = 0, st_size = 120, st_blksize = 4096, st_blocks = 0, st_atim = { tv_sec = 1607000056, tv_nsec = 100000000}, st_mtim = {tv_sec = 1607002632, tv_nsec = 716000000}, st_ctim = {tv_sec = 1607003887, tv_nsec = 44000000}, __glibc_reserved = {0, 0, 0}} tbuf = "\000\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\210'Ö\255\177\000\000\030\207\241\226\255\177\000\000\000\000\000\000\000\000\000\000\220\340o%\374\177\000\000`\261w%\374\177\000\000\240\341o%\374\177\000\000رw%\374\177\000\000\220\341o%\374\177\000\000\000\000\000\000\000\000\000\000<\177\241\226\255\177\000\000\000\000\000\000\000\000\000\000.N=\366\000\000\000\000\004\000\000\000\000\000\000\000\006\000\000\000\000\000\000\000\250u\302\226\255\177\000\000\266\210\241\226\255\177", '\000' <repeats 11 times>, "\341o%\374\177\000\000\060=\362\225\255\177\000\000\020\342o%\374\177\000\000\370\001\363\225\255\177\000\000\070\365\330\003\000\000\000\000\000\342o%\374\177\000\000\350*Ö"... option_index = 0 long_options = {{name = 0x7e424f "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x7df854 "version", has_arg = 0, flag = 0x0, val = 118}, {name = 0x7e4254 "alias", has_arg = 1, flag = 0x0, val = 1024}, {name = 0x7e425a "subst", has_arg = 1, flag = 0x0, val = 1025}, {name = 0x7e4260 "substdef", has_arg = 1, flag = 0x0, val = 1026}, { name = 0x7e4269 "substdefs", has_arg = 1, flag = 0x0, val = 1027}, {name = 0x7e4273 "server-id", has_arg = 1, flag = 0x0, val = 1028}, {name = 0x7e427d "loadmodule", has_arg = 1, flag = 0x0, val = 1029}, {name = 0x7e4288 "modparam", has_arg = 1, flag = 0x0, val = 1030}, {name = 0x7e4291 "log-engine", has_arg = 1, flag = 0x0, val = 1031}, { name = 0x7e429c "debug", has_arg = 1, flag = 0x0, val = 1032}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} __FUNCTION__ = "main" (gdb) ```
There so many udp_send_failed error in logs so I tried to debug that process ``` #0 0x00007f668aa94013 in recvfrom () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00000000006638d0 in udp_rcv_loop () at core/udp_server.c:460 len = 638 buf = "SUBSCRIBE tel:+923492324215 SIP/2.0\r\nFrom: tel:+923492324215;tag=2869510412\r\nTo: tel:+923492324215\r\nCSeq: 722026762 SUBSCRIBE\r\nCall-ID: 2869510410_3596082716@10.100.217.241\r\nVia: SIP/2.0/UDP 10.100"... tmp = 0xdf831260 <error: Cannot access memory at address 0xdf831260> from = 0x7f666ac86e78 fromlen = 16 ```
another proocess
``` #0 0x00007f668aa94013 in recvfrom () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00000000006638d0 in udp_rcv_loop () at core/udp_server.c:460 len = 952 buf = "REGISTER sip:ims.mnc006.mcc410.3gppnetwork.org SIP/2.0\r\nVia: SIP/2.0/UDP 10.100.213.50;rport;branch=z9hG4bKL60mek0i6jXu6V\r\nFrom: sip:410060265715793@ims.mnc006.mcc410.3gppnetwork.org;tag=jYbVBQiAfL1"... tmp = 0xdf831260 <error: Cannot access memory at address 0xdf831260> from = 0x7f666ac86e78 fromlen = 16 ri = {src_ip = {af = 2, len = 4, u = {addrl = {140072621270026, 140723275665552}, addr32 = {852845578, 32613, 2967179408, 32764}, addr16 = {25610, 13013, 32613, 0, 37008, 45275, 32764, 0}, addr = "\nd\325\062e\177\000\000\220\220۰\374\177\000"}}, dst_ip = {af = 2, len = 4, u = {addrl = {3839926538, 0}, addr32 = {3839926538, 0, 0, 0}, addr16 = {41226, 58592, 0, 0, 0, 0, 0, 0}, addr = "\n\241\340\344", '\000' <repeats 11 times>}}, src_port = 5060, dst_port = 5060, proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {sa_family = 2, sa_data = "\023\304\nd\325\062\000\000\000\000\000\000\000"}, sin = { sin_family = 2, sin_port = 50195, sin_addr = {s_addr = 852845578}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 2, sin6_port = 50195, sin6_flowinfo = 852845578, sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}, bind_address = 0x7f666aa23d78, proto = 1 '\001'} evp = {data = 0x0, rcv = 0x0, dst = 0x0} printbuf = "P\221۰\374\177\000\000\005\364<\337e\177\000\000 \221۰\374\177\000\000\265˧\337e\177\000\000\340\223۰\374\177\000\000L\221۰\374\177\000\000\340\223۰\004\000\000\000\360\005|\000\016\000\000\000n\365\023o\016\000\000\000\177$\000\000\000\000\000\000P\221۰\374\177\000\000(6\373\337e\177\000\000`\211A\000\000\000\000\000`\227۰\374\177", '\000' <repeats 18 times>, "\020\222۰\374\177\000\000\035\261]", '\000' <repeats 21 times>, "\300\022\262\000\000\000\000\000I/e\025\000\000\000\000`\211A\000\000\000\000\000`\227۰\374\177", '\000' <repeats 19 times>, "\222"... i = -537187496 j = 32613 l = 32613 __FUNCTION__ = "udp_rcv_loop" #2 0x0000000000424c4c in main_loop () at main.c:1628 ```
#### Log Messages
There are lot of such error in log level 0.
``` Dec 10 17:01:30 pcscf [Proxy-CSCF][5798]: ERROR: tm [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5798]: WARNING: tm [t_fwd.c:1567]: t_send_branch(): sending request on branch 0 failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5798]: ERROR: <script>: [+923335050681 03469646904 51D4A031-5FD20DB4000DF0EC-6DCDF700 INVITE] t_relay returned code - -1 Dec 10 17:01:30 pcscf [Proxy-CSCF][5798]: ERROR: sl [sl_funcs.c:362]: sl_reply_error(): stateless error reply used: I'm terribly sorry, server error occurred (1/SL) Dec 10 17:01:30 pcscf [Proxy-CSCF][5827]: ERROR: <script>: [+923335050681 03469646904 51D4A031-5FD20DB4000DF0EC-6DCDF700 ACK] Relaying Request to sip:10.100.19.40:5060 Dec 10 17:01:30 pcscf [Proxy-CSCF][5815]: ERROR: <script>: [+923335050681 03469646904 0f7e963a-edba-4818-96c1-5b86c5ab460f ACK] Relaying Request to sip:10.100.19.40:5060 Dec 10 17:01:30 pcscf [Proxy-CSCF][5843]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff7695d0,879,0,10.100.217.32:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5843]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5843]: ERROR: tm [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5712]: ERROR: <script>: Re-Transmit: REGISTER (sip:410060543905859@ims.mnc006.mcc410.3gppnetwork.org (10.100.32.122:5060) to sip:410060543905859@ims.mnc006.mcc410.3gppnetwork.org, 3133259377_751769164@10.100.32.122) Dec 10 17:01:30 pcscf [Proxy-CSCF][5763]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff76a678,348,0,10.100.247.52:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5763]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5763]: ERROR: sl [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5770]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff769b10,929,0,10.100.191.77:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5770]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5770]: ERROR: tm [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5697]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff7688b0,346,0,10.100.34.62:5060,16): Invalid argument(22)Dec 10 17:01:30 pcscf [Proxy-CSCF][5697]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5697]: ERROR: sl [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5811]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff7685b0,934,0,10.100.251.103:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5811]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5811]: ERROR: tm [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5742]: ERROR: <script>: [410060460486067 410060460486067 QichLJ2zkELhtXoCr6g REGISTER] Relaying Request to sip:ims.mnc006.mcc410.3gppnetwork.org Dec 10 17:01:30 pcscf [Proxy-CSCF][5916]: ERROR: <core> [core/tcp_read.c:301]: tcp_read_data(): error reading: Connection timed out (110) ([10.100.183.203]:1030 -> Dec 10 17:01:30 pcscf [Proxy-CSCF][5916]: ERROR: <core> [core/tcp_read.c:302]: tcp_read_data(): -> [10.161.224.228]:5060) Dec 10 17:01:30 pcscf [Proxy-CSCF][5916]: ERROR: <core> [core/tcp_read.c:1485]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f5e3a198cd0 r: 0x7f5e3a198d50 Dec 10 17:01:30 pcscf [Proxy-CSCF][5736]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff76a7d8,358,0,10.100.49.211:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5736]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5736]: ERROR: sl [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5736]: ERROR: <script>: [410060741303598 410060741303598 xq2Tdyiihj7vlodiPoI REGISTER] Relaying Request to sip:ims.mnc006.mcc410.3gppnetwork.org Dec 10 17:01:30 pcscf [Proxy-CSCF][5733]: ERROR: <script>: Re-Transmit: REGISTER (sip:410060256289042@ims.mnc006.mcc410.3gppnetwork.org (10.100.166.211:5060) to sip:410060256289042@ims.mnc006.mcc410.3gppnetwork.org, HoMEyy6arvvc1vvehJe) Dec 10 17:01:30 pcscf [Proxy-CSCF][5733]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5efed06560,882,0,10.100.166.211:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5733]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5733]: ERROR: tm [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5733]: WARNING: tm [t_reply.c:1581]: t_retransmit_reply(): send pr buffer failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5696]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff7690d8,349,0,10.100.165.192:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5696]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5696]: ERROR: sl [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5788]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff76ba08,926,0,10.100.6.243:5060,16): Invalid argument(22)Dec 10 17:01:30 pcscf [Proxy-CSCF][5788]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5788]: ERROR: tm [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5885]: ERROR: cdp [authstatemachine.c:404]: auth_client_statefull_sm_process(): auth_client_statefull_sm_process(): Received invalid event 6 while in state Open! Dec 10 17:01:30 pcscf [Proxy-CSCF][5717]: ERROR: <script>: Re-Transmit: REGISTER (sip:410060548570762@ims.mnc006.mcc410.3gppnetwork.org (10.100.193.242:5060) to sip:410060548570762@ims.mnc006.mcc410.3gppnetwork.org, 3146661978_3836711884@10.100.193.242) Dec 10 17:01:30 pcscf [Proxy-CSCF][5717]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5efed06560,957,0,10.100.193.242:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5717]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5717]: ERROR: tm [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5717]: WARNING: tm [t_reply.c:1581]: t_retransmit_reply(): send pr buffer failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5918]: ERROR: <script>: [03497290720 +923481006204 xHiYwrcWiZ65jbLKA76 ACK] Relaying Request to sip:10.161.224.212:5080 Dec 10 17:01:30 pcscf [Proxy-CSCF][5776]: ERROR: <script>: [03497290720 +923481006204 2A24C52B-5FD20DA600002FE3-76C6E700 ACK] Relaying Request to sip:03497290720@10.161.225.14:15080;transport=udp Dec 10 17:01:30 pcscf [Proxy-CSCF][5747]: ERROR: <script>: [410060261800036 410060261800036 5aP3ApQicP7xocoTOT9 REGISTER] Relaying Request to sip:ims.mnc006.mcc410.3gppnetwork.org Dec 10 17:01:30 pcscf [Proxy-CSCF][5764]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff768628,344,0,10.100.2.48:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5764]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5764]: ERROR: sl [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5753]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff76a338,356,0,10.100.40.40:5060,16): Invalid argument(22)Dec 10 17:01:30 pcscf [Proxy-CSCF][5753]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5753]: ERROR: sl [../../core/forward.h:219]: msg_send_buffer(): udp_send failed Dec 10 17:01:30 pcscf [Proxy-CSCF][5753]: ERROR: <script>: [410060561499599 410060561499599 FMmoB0mfycODVi76kdn REGISTER] Relaying Request to sip:ims.mnc006.mcc410.3gppnetwork.org Dec 10 17:01:30 pcscf [Proxy-CSCF][5743]: ERROR: <core> [core/udp_server.c:596]: udp_send(): sendto(sock,0x7f5eff76aa50,358,0,10.100.161.17:5060,16): Invalid argument(22) Dec 10 17:01:30 pcscf [Proxy-CSCF][5743]: CRITICAL: <core> [core/udp_server.c:601]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Dec 10 17:01:30 pcscf [Proxy-CSCF][5743]: ERROR: sl [../../core/forward.h:219]: msg_send_buffer(): udp_send failed ```
### Additional Information
* **Kamailio Version** - output of `kamailio -I`
``` Version: kamailio 5.4.2 (x86_64/linux) Default config: /usr/local/etc/kamailio/kamailio.cfg Default paths to modules: /usr/local/lib64/kamailio/modules Compile 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_BLACKLIST, HAVE_RESOLV_RES MAX_RECV_BUFFER_SIZE=262144 MAX_URI_SIZE=1024 BUF_SIZE=65535 DEFAULT PKG_SIZE=8MB DEFAULT SHM_SIZE=64MB ADAPTIVE_WAIT_LOOPS=1024 TCP poll methods: poll, epoll_lt, epoll_et, sigio_rt, select Source code revision ID: unknown Compiled with: gcc 4.8.4 Compiled architecture: x86_64 Compiled on: 12:54:15 Dec 2 2020 Thank you for flying kamailio! ```
* **Operating System**:
``` $ cat /etc/*lease DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu 14.04.5 LTS" NAME="Ubuntu" VERSION="14.04.5 LTS, Trusty Tahr" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 14.04.5 LTS" VERSION_ID="14.04" HOME_URL="http://www.ubuntu.com/" SUPPORT_URL="http://help.ubuntu.com/" BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/" $ uname -a Linux pcscf 3.19.0-80-generic #88~14.04.1-Ubuntu SMP Fri Jan 13 14:54:07 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux ```