Description

Hi, I ran into an issue where the Kamailio service seemingly froze (didn't crash, but failed to receive and deliver calls) while running, I went through the logs a little bit, and saw the same log pattern (pasted below) recouring every few months or so, on an older installation (5.2.0). Usually, it ended up automatically restarting the service. But not this time, I had to reload it manually to make the service work again.

Is this a known issue?
How can I make sure that the service will be able to restart the next time it happens?

Edward

Troubleshooting

Debugging Data

GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
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Reading symbols from /usr/local/sbin/kamailio...done.

warning: exec file is newer than core file.
[New LWP 11413]
Core was generated by `kamailio'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007f4e4a52e428 in ?? ()
(gdb) Quit
(gdb) bt full
#0  0x00007f4e4a52e428 in ?? ()
No symbol table info available.
#1  0x00007f4e4a53002a in ?? ()
No symbol table info available.
#2  0x0000000000000020 in ?? ()
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.
(gdb) info locals
No symbol table info available.
(gdb) list
1871                           & now if we don't need it */
1872    #ifdef USE_SLOW_TIMER
1873                    + 1 /* slow timer process */
1874    #endif
1875    #ifdef USE_TCP
1876                    +((!tcp_disable)?( 1/* tcp main */ + tcp_listeners ):0)
1877    #endif
1878    #ifdef USE_SCTP
1879                    +((!sctp_disable)?sctp_listeners:0)
1880    #endif
(gdb)

Log Messages

Jun 28 16:35:22 kamprodegres kamailio: INFO: <core> [core/sctp_core.c:74]: sctp_core_check_support(): SCTP API not enabled - if you want to use it, load sctp module
Jun 28 16:35:22 kamprodegres kamailio: WARNING: <core> [core/socket_info.c:1394]: fix_hostname(): could not rev. resolve 70.36.25.87
Jun 28 16:35:22 kamprodegres kamailio: WARNING: <core> [core/socket_info.c:1394]: fix_hostname(): could not rev. resolve 70.36.25.87
Jun 28 16:35:22 kamprodegres kamailio: INFO: <core> [core/tcp_main.c:5042]: init_tcp(): using epoll_lt as the io watch method (auto detected)
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: jsonrpcs [jsonrpcs_sock.c:197]: jsonrpc_dgram_mod_init(): the socket /var/run/kamailio/kamailio_rpc.sock already exists, trying to delete it...
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: rr [../outbound/api.h:52]: ob_load_api(): unable to import bind_ob - maybe module is not loaded
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: rr [rr_mod.c:177]: mod_init(): outbound module not available
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: <core> [main.c:2779]: main(): processes (at least): 40 - shm size: 67108864 - pkg size: 8388608
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: <core> [core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is initially 212992
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: <core> [core/udp_server.c:206]: probe_max_receive_buffer(): SO_RCVBUF is finally 425984
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: <core> [core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is initially 212992
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: <core> [core/udp_server.c:206]: probe_max_receive_buffer(): SO_RCVBUF is finally 425984
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: <core> [core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is initially 212992
Jun 28 16:35:22 kamprodegres kamailio[8489]: INFO: <core> [core/udp_server.c:206]: probe_max_receive_buffer(): SO_RCVBUF is finally 425984
Jun 28 16:35:22 kamprodegres kamailio[8518]: INFO: jsonrpcs [jsonrpcs_sock.c:443]: jsonrpc_dgram_process(): a new child 0/8518
Jun 28 16:35:22 kamprodegres kamailio[8519]: INFO: ctl [io_listener.c:214]: io_listen_loop(): io_listen_loop:  using epoll_lt io watch method (config)
Jun 29 18:13:37 kamprodegres kamailio[8513]: INFO: {1 581461 CANCEL 402954192_49936786@67.231.13.146} tm [t_reply.c:478]: _reply_light(): can't generate 487 reply when a final 404 was sent out
Jun 29 18:27:00 kamprodegres kamailio[8508]: INFO: {1 211236 CANCEL 405019408_127896329@67.231.13.146} tm [t_reply.c:478]: _reply_light(): can't generate 487 reply when a final 404 was sent out
Jun 29 18:51:10 kamprodegres /usr/local/sbin/kamailio[2269]: NOTICE: <core> [main.c:725]: handle_sigs(): Thank you for flying kamailio!!!
Jun 29 18:51:10 kamprodegres /usr/local/sbin/kamailio[2326]: INFO: <core> [main.c:847]: sig_usr(): signal 15 received

Additional Information

version: kamailio 5.3.2 (x86_64/linux) 7ba545
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
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: 7ba545
compiled on 16:37:32 Jun 14 2020 with gcc 5.4.0


Ubuntu 16.04

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