Hello,

ok – can you quantify the mismatch? Like it is a few percent etc..?

Cheers,

Henning

--

Henning Westerholt – https://skalatan.de/blog/

Kamailio services – https://gilawa.com

From: sr-dev <sr-dev-bounces@lists.kamailio.org> On Behalf Of Georgi Rosenov Stefanov
Sent: Thursday, June 4, 2020 12:04 PM
To: sr-dev@lists.kamailio.org
Subject: [sr-dev] missing SAR messages

Hi Henning,

At first I want to thanks you for reading my post :)

Actually I tried to use DEBUG logs, but nothing .....

So I put an "abort()" :) into cxdx_send_sar, so I am able to track one successful test case. Here is the backtrace:

#2  0x00007fcb469c12f7 in cxdx_send_sar (msg=0x7fcb4d66a968, public_identity=..., private_identity=..., server_name=...,
    assignment_type=1, data_available=0, transaction_data=0x7fcb3e455610) at cxdx_sar.c:328
#3  0x00007fcb469c3815 in scscf_assign_server (msg=0x7fcb4d66a968, public_identity=..., private_identity=...,
    assignment_type=1, data_available=0, transaction_data=0x7fcb3e455610) at server_assignment.c:88
#4  0x00007fcb469ba42f in save (msg=0x7fcb4d66a968, str1=0x7fcb3e423158 "X0B>\313\177",
    route=0x7fcb4d6656e0 " 3]M\313\177") at save.c:1438
#5  0x00007fcb469cce2a in w_save (_m=0x7fcb4d66a968, _route=0x7fcb4d6656e0 " 3]M\313\177",
    _d=0x7fcb3e423158 "X0B>\313\177", mode=0x7fcb4d66a968 "\001", _cflags=0x0) at ims_registrar_scscf_mod.c:623
#6  0x000000000047c5c9 in do_action (h=0x7ffd2e6d7e50, a=0x7fcb4d5d2f80, msg=0x7fcb4d66a968) at core/action.c:1085
#7  0x000000000048907a in run_actions (h=0x7ffd2e6d7e50, a=0x7fcb4d5d2be8, msg=0x7fcb4d66a968) at core/action.c:1578
#8  0x000000000047c422 in do_action (h=0x7ffd2e6d7e50, a=0x7fcb4d5d4010, msg=0x7fcb4d66a968) at core/action.c:1064
#9  0x000000000048907a in run_actions (h=0x7ffd2e6d7e50, a=0x7fcb4d5d4010, msg=0x7fcb4d66a968) at core/action.c:1578
#10 0x000000000047c470 in do_action (h=0x7ffd2e6d7e50, a=0x7fcb4d5d4160, msg=0x7fcb4d66a968) at core/action.c:1068
#11 0x000000000048907a in run_actions (h=0x7ffd2e6d7e50, a=0x7fcb4d5c4d00, msg=0x7fcb4d66a968) at core/action.c:1578
#12 0x0000000000478ed9 in do_action (h=0x7ffd2e6d7e50, a=0x7fcb4d573058, msg=0x7fcb4d66a968) at core/action.c:697
#13 0x000000000048907a in run_actions (h=0x7ffd2e6d7e50, a=0x7fcb4d573058, msg=0x7fcb4d66a968) at core/action.c:1578
#14 0x000000000047c422 in do_action (h=0x7ffd2e6d7e50, a=0x7fcb4d5732f8, msg=0x7fcb4d66a968) at core/action.c:1064
#15 0x000000000048907a in run_actions (h=0x7ffd2e6d7e50, a=0x7fcb4d571ea0, msg=0x7fcb4d66a968) at core/action.c:1578
#16 0x0000000000489803 in run_top_route (a=0x7fcb4d571ea0, msg=0x7fcb4d66a968, c=0x0) at core/action.c:1663
#17 0x00000000005b510e in receive_msg (
    buf=0xa95500 <buf.6971> "REGISTER sip:scscf.mnc001.mcc001.3gppnetwork.org:6060 SIP/2.0\r\nVia: SIP/2.0/UDP 10.82.10.145:4060;branch=z9hG4bKe025.079fd766789513e3068d0dce7e1853f3.0\r\nVia: SIP/2.0/UDP 10.82.10.145;branch=z9hG4bKe02"...,
    len=1085, rcv_info=0x7ffd2e6d8490) at core/receive.c:424
#18 0x00000000004bc624 in udp_rcv_loop () at core/udp_server.c:548

So w_save is called from pcscf_save("location") from /usr/local/etc/kamailio/pcscf/route/register.cfg

and save("PRE_REG_SAR_REPLY","location") or save("REG_SAR_REPLY","location");
from /usr/local/etc/kamailio/scscf/kamailio.cfg

So I put err log messages(err to be clearly visible ) and then using "journal | grep "my string" -c I count how many times the SAR is triggered

Then I count how many SAR messages a sent and the numbers mismatch