[SR-Users] Daily crash of kamailio 4.0.5

Hi guys, I'm having some crashs on a simple REGISTRAR, in st_delete_ucontact. It happens daily, mostly when proxy is loaded. Saw that someone got the same problem via this pastebin: http://pastebin.com/GsMtav7A. Does someone got an idea of why it's failing or a workaround or a fix to share ? Here is the backtrace for us: #0 0x00007fb6d7178e3c in st_delete_ucontact (_c=0xf0) at ucontact.c:358 #1 0x00007fb6d718f4a1 in delete_ucontact (_r=0x7fb69c9a1ea0, _c=0xf0) at urecord.c:509 #2 0x00007fb6d6d49b6a in update_contacts (_m=0x7fb6d8e1ab70, _r=0x7fb69c9a1ea0, _mode=1) at save.c:700 #3 0x00007fb6d6d4a4c3 in add_contacts (_m=0x7fb6d8e1ab70, _d=0x7fb6908c2f10, _a=0x7fff02a69380, _mode=1) at save.c:803 #4 0x00007fb6d6d4a9f2 in save (_m=0x7fb6d8e1ab70, _d=0x7fb6908c2f10, _cflags=4, _uri=0x0) at save.c:879 #5 0x00007fb6d6d3e41d in w_save2 (_m=0x7fb6d8e1ab70, _d=0x7fb6908c2f10 "\240.\214\220\266\177", _cflags=0x4 <Address 0x4 out of bounds>) at reg_mod.c:442 #6 0x000000000041b80b in do_action (h=0x7fff02a699a0, a=0x7fb6d8de2a30, msg=0x7fb6d8e1ab70) at action.c:1086 #7 0x0000000000423f62 in run_actions (h=0x7fff02a699a0, a=0x7fb6d8de2a30, msg=0x7fb6d8e1ab70) at action.c:1573 #8 0x0000000000424639 in run_actions_safe (h=0x7fff02a6ae90, a=0x7fb6d8de2a30, msg=0x7fb6d8e1ab70) at action.c:1637 #9 0x00000000004bef7d in rval_get_int (h=0x7fff02a6ae90, msg=0x7fb6d8e1ab70, i=0x7fff02a69da8, rv=0x7fb6d8de37a8, cache=0x0) at rvalue.c:920 #10 0x00000000004c1b85 in rval_expr_eval_int (h=0x7fff02a6ae90, msg=0x7fb6d8e1ab70, res=0x7fff02a69da8, rve=0x7fb6d8de37a0) at rvalue.c:1914 #11 0x00000000004c1d6c in rval_expr_eval_int (h=0x7fff02a6ae90, msg=0x7fb6d8e1ab70, res=0x7fff02a6a200, rve=0x7fb6d8de30c0) at rvalue.c:1922 #12 0x000000000041b422 in do_action (h=0x7fff02a6ae90, a=0x7fb6d8df3700, msg=0x7fb6d8e1ab70) at action.c:1050 #13 0x0000000000423f62 in run_actions (h=0x7fff02a6ae90, a=0x7fb6d8de27f0, msg=0x7fb6d8e1ab70) at action.c:1573 #14 0x000000000041b661 in do_action (h=0x7fff02a6ae90, a=0x7fb6d8df3900, msg=0x7fb6d8e1ab70) at action.c:1065 #15 0x0000000000423f62 in run_actions (h=0x7fff02a6ae90, a=0x7fb6d8df3900, msg=0x7fb6d8e1ab70) at action.c:1573 #16 0x0000000000419851 in do_action (h=0x7fff02a6ae90, a=0x7fb6d8dc0e70, msg=0x7fb6d8e1ab70) at action.c:690 #17 0x0000000000423f62 in run_actions (h=0x7fff02a6ae90, a=0x7fb6d8db9bf0, msg=0x7fb6d8e1ab70) at action.c:1573 #18 0x0000000000424701 in run_top_route (a=0x7fb6d8db9bf0, msg=0x7fb6d8e1ab70, c=0x0) at action.c:1658 #19 0x00000000004a0018 in receive_msg ( buf=0x9055c0 "REGISTER sip:[ADOMAIN] SIP/2.0\r\nVia: SIP/2.0/UDP [ANIP];branch=z9hG4bKcydzigwkX;i=20be2b3\r\nVia: SIP/2.0/TLS [ANIP]:40080;received=[ANIP];rport=50419;branch=z9hG4bK793894041\r\nFr"..., len=613, rcv_info=0x7fff02a6b140) at receive.c:211 #20 0x0000000000530665 in udp_rcv_loop () at udp_server.c:557 #21 0x0000000000469be4 in main_loop () at main.c:1638 #22 0x000000000046ca85 in main (argc=13, argv=0x7fff02a6b478) at main.c:2566 And here is the simple part of config that could call this method: route[REGISTRAR] { if (is_method("REGISTER")) { if (!save("location","0x04")) { sl_reply_error(); } else { # DOSOMESTUFF like replicate to a backup proxy } exit; } } If you need more info, don't hesitate to ask !!