### Description

Hello,

I get a segfault with kamailio 5.0.6 on a centos 7

(gdb) #0 0x00007f8d37f1c35e in clean_routine (ticks=43668909, param=0x0) at pike_funcs.c:206 #1 0x000000000047deb2 in compat_old_handler (ti=698702557, tl=0x7f8d38ed01a8, data=0x7f8d38ed01a8) at core/timer.c:997 #2 0x000000000047e92d in slow_timer_main () at core/timer.c:1131 #3 0x0000000000422fc4 in main_loop () at main.c:1679 #4 0x0000000000429e4d in main (argc=7, argv=0x7ffe1787ac98) at main.c:2642 (gdb) bt full #0 0x00007f8d37f1c35e in clean_routine (ticks=43668909, param=0x0) at pike_funcs.c:206 mask = "\000\000\000\000\000\000\000\000\000 \000\020\000\000\000\000\000\000\000\000\000\000\004\002\000\000\000\000\000\000\000" head = {next = 0x7f8d3aa110f8, prev = 0x7f8d39d36470} ll = 0x0 dad = 0x29a55ad00a4c9c0 node = 0xfffffffffffffff0 i = 77 __FUNCTION__ = "clean_routine" __PRETTY_FUNCTION__ = "clean_routine" #1 0x000000000047deb2 in compat_old_handler (ti=698702557, tl=0x7f8d38ed01a8, data=0x7f8d38ed01a8) at core/timer.c:997 t = 0x7f8d38ed01a8 #2 0x000000000047e92d in slow_timer_main () at core/timer.c:1131 n = 12 ret = 4294967295 tl = 0x7f8d38ed01a8 i = 925 __FUNCTION__ = "slow_timer_main" #3 0x0000000000422fc4 in main_loop () at main.c:1679 i = 20 pid = 0 si = 0x0 si_desc = "udp receiver child=19 sock=185.190.125.3:6000\000\000\000\006\000\000\000\000\000\000\000H\342\370r\231\177\000\000\060\251\207\027\376\177\000\000p'\355\070\215\177\000\000\240\262<m\231\177\000\000\210\330Et\231\177\000\000 \202<m\231\177\000\000\003\000\000\000\000\000\000\000\004\000\000\000\000\000\000\000\000\200\066\070\215\177\000" nrprocs = 20 woneinit = 1 __FUNCTION__ = "main_loop" #4 0x0000000000429e4d in main (argc=7, argv=0x7ffe1787ac98) at main.c:2642 cfg_stream = 0x183e010 c = -1 r = 0 tmp = 0x7ffe1787b86e "" tmp_len = 0 port = 0 proto = 2496 options = 0x7387e0 ":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 = 1816923433 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x7ffe1787ab50 p = 0x7f997c3cb9ad <intel_check_word+173> "H\205\300t\025\017\266P\003\017\266\312D9\371\017\204", <incomplete sequence \316> st = {st_dev = 20, st_ino = 30979, st_nlink = 2, st_mode = 16832, st_uid = 0, st_gid = 0, __pad0 = 0, st_rdev = 0, st_size = 40, st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1530437017, tv_nsec = 316150519}, st_mtim = {tv_sec = 1542572308, tv_nsec = 811767469}, st_ctim = {tv_sec = 1542572308, tv_nsec = 811767469}, __unused = {0, 0, 0}} __FUNCTION__ = "main"

(gdb) info locals cfg_stream = 0x183e010 c = -1 r = 0 tmp = 0x7ffe1787b86e "" tmp_len = 0 port = 0 proto = 2496 options = 0x7387e0 ":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 = 1816923433 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x7ffe1787ab50 p = 0x7f997c3cb9ad <intel_check_word+173> "H\205\300t\025\017\266P\003\017\266\312D9\371\017\204", <incomplete sequence \316> st = {st_dev = 20, st_ino = 30979, st_nlink = 2, st_mode = 16832, st_uid = 0, st_gid = 0, __pad0 = 0, st_rdev = 0, st_size = 40, st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1530437017, tv_nsec = 316150519}, st_mtim = {tv_sec = 1542572308, tv_nsec = 811767469}, st_ctim = {tv_sec = 1542572308, tv_nsec = 811767469}, __unused = {0, 0, 0}} __FUNCTION__ = "main"

(gdb) list 201 continue; 202 203 lock_tree_branch( i ); 204 for( ll=head.next ; ll!=&head ; ) { 205 node = ll2ipnode( ll ); 206 ll = ll->next; 207 /* skip nodes from a different branch */ 208 if (node->branch!=i) 209 continue; 210 (gdb)

I have no SIP traffic and no idea how to reproduce for the moment

Laurent