[SR-Users] kamailio crash periodically in timer handler

Hi, we have a serious problem with Kamailio v4.2.3, it crashes after some days. We have checked the core dump and the gdb output is the following for bt and full backtrace: #0 0x0000000000602291 in timer_list_expire (t=1432559962, h=0x7f64eb5b6bd0, slow_l=0x7f64eb5ba328, slow_mark=43873) at timer.c:877 #1 0x0000000000602746 in timer_handler () at timer.c:953 #2 0x0000000000602bb9 in timer_main () at timer.c:992 #3 0x00000000004a833c in main_loop () at main.c:1700 #4 0x00000000004ad857 in main (argc=13, argv=0x7fff96697d38) at main.c:2578 #0 0x0000000000602291 in timer_list_expire (t=1432559962, h=0x7f64eb5b6bd0, slow_l=0x7f64eb5ba328, slow_mark=43873) at timer.c:877 tl = 0x7f64ebc3a908 ret = 0 #1 0x0000000000602746 in timer_handler () at timer.c:953 saved_ticks = 1432559962 run_slow_timer = 0 i = 865 __FUNCTION__ = "timer_handler" #2 0x0000000000602bb9 in timer_main () at timer.c:992 No locals. #3 0x00000000004a833c in main_loop () at main.c:1700 i = 4 pid = 0 si = 0x0 si_desc = "udp receiver child=3 sock=127.0.0.1:5060\000\375\362\250/\313\345\v\004\000\000\000\000\000\000\000\004\257\263=\000\000\000\000\200TA\000\000\000\000\000\060}i\226\377\177", '\000' <repeats 19 times>, "{i\226\377\177\000\000\376\366R\000\000\000\000\000\377\377\377\377\377\177\000\000@\350\250\000\000\000\000" nrprocs = 4 __FUNCTION__ = "main_loop" #4 0x00000000004ad857 in main (argc=13, argv=0x7fff96697d38) at main.c:2578 cfg_stream = 0x1b94010 c = -1 r = 0 tmp = 0x7fff96699b17 "" tmp_len = 0 port = 1 proto = 32767 options = 0x703e08 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:" ret = -1 seed = 2591880768 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x0 p = 0x7fff96697c50 "" __FUNCTION__ = "main" In the logs it can be seen: Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4635]: CRITICAL: <core> [pass_fd.c:293]: receive_fd(): EOF on 21 Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4612]: ALERT: <core> [main.c:784]: handle_sigs(): child process 4623 exited by a signal 11 Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4612]: ALERT: <core> [main.c:787]: handle_sigs(): core was generated Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4612]: INFO: <core> [main.c:799]: handle_sigs(): terminating due to SIGCHLD Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4631]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4628]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4634]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4615]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4617]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4626]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4625]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4624]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4632]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4622]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4621]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4620]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4619]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4618]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4616]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4635]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4614]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4629]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4627]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4633]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4630]: INFO: <core> [main.c:850]: sig_usr(): signal 15 received Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4612]: INFO: <core> [mem/f_malloc.c:599]: fm_free(): freeing a free fragment (0x7f64eca19950/0x7f64eca19988) - ignore Apr 23 08:07:31 ctsip1 /usr/local/sbin/kamailio[4612]: INFO: <core> [mem/f_malloc.c:599]: fm_free(): freeing a free fragment (0x7f64ed587f20/0x7f64ed587f58) - ignore Kamailio runs on Ubuntu trusty. The interesting thing that we run Kamailio 4.2.3 in an other environment (on Debian Squeeze) and it works perfect, no crashes. The main difference is that in Debian environment we have less number of users and the firewall is not so strength. But the configuration and the source is the same for both. Please help us to solve this problem. Thanks. Dr. Péter Barabás Director of Software Development Arenim Technologies AB. Mob: +36 70 314 56 57 Tel: +36 1 8 555 602 E-mail: peter.barabas@arenim.com<mailto:peter.barabas@arenim.com> Postal: Sweden - 11435 Stockholm, Stureplan 4c, 4th. Floor [Arenim_logo]<http://www.arenim.com/> [CryptTalk_Logo]<http://www.crypttalk.com/>