9 Jul
2024
9 Jul
'24
1:43 p.m.
Hello,
Could someone help me please?
I have a production system stopped and waiting to be fixed.
My production script is more complex, but this issue also occurs with simple scripts like
the one described previously.
Help on this is much appreciated
Regards,
Vanderlei
________________________________
De: Vanderlei Torres Batistela via sr-users <sr-users(a)lists.kamailio.org>
Enviado: terça-feira, 2 de julho de 2024 09:24
Para: sr-users(a)lists.kamailio.org <sr-users(a)lists.kamailio.org>
Cc: Vanderlei Torres Batistela <v.batistela(a)hotmail.com>
Assunto: [SR-Users] Possible Kamailio memory leak - version 5.8.2
Hello all,
I am using a very simple scritp with corex module enabled . Normal calls works fine, but
a scenario where INVITE does not
receive response and the call is released with SIP 408 (request timeout) leads to memory
leak. I verified it making a lot of
calls with this scenario and printing the shared memory (using kamcmd core.shmmem) . Its
ocurred with modparam("corex", "nio_intercept", 1).
If I modify to modparam("corex", "nio_intercept", 0) the memory leak
does not ocurr anymore.
The problem also occurs in another scenario where the SIP Cancel message is not responded
to.
My script has this event route
# event route
event_route[network:msg] {
xlog("L_INFO", "Dentro do Event_Route \n");
if (is_incoming()) {
xlog("L_INFO", "Received message '$mb' \n");
$avp(msg) = $mb;
xinfo("avp(msg) = $avp(msg)");
} else {
xlog("L_INFO", "Sending message '$mb' \n");
$avp(msg) = $mb;
};
}
Test done wtih 4000 calls:
[root@labcom070 kamailio]# kamctl stats shmem
{
"jsonrpc": "2.0",
"result": [
"shmem:fragments = 900",
"shmem:free_size = 6180368",
"shmem:max_used_size = 66980272",
"shmem:real_used_size = 60928496",
"shmem:total_size = 67108864",
"shmem:used_size = 54884944"
],
"id": 393115
}
[root@labcom070 kamailio]# kamcmd mod.stats all shm
Module: core
{
create_avp(178): 52257504
counters_prefork_init(211): 53760
cfg_clone_str(132): 112
cfg_shmize(221): 832
main_loop(1381): 16
init_pt(104): 16
init_pt(103): 16
init_pt(102): 6224
cfg_register_ctx(47): 96
init_tcp(5197): 8192
init_tcp(5191): 32768
init_tcp(5182): 16
init_tcp(5175): 16
init_tcp(5167): 16
init_tcp(5161): 16
init_tcp(5149): 16
init_avps(92): 16
init_avps(91): 16
init_dst_blocklist(435): 16384
init_dst_blocklist(427): 16
timer_alloc(494): 96
init_dns_cache(368): 16
init_dns_cache(359): 16384
init_dns_cache(351): 16
init_dns_cache(343): 16
init_timer(264): 16
init_timer(263): 16384
init_timer(262): 16
init_timer(261): 16
init_timer(250): 16
init_timer(218): 16
init_timer(207): 278544
init_timer(206): 16
init_timer(194): 16
cfg_child_cb_new(832): 64
sr_cfg_init(371): 16
sr_cfg_init(364): 16
sr_cfg_init(356): 16
sr_cfg_init(344): 16
sr_cfg_init(332): 16
ksr_shutdown_phase_init(123): 16
rpc_hash_add(118): 16
qm_shm_lock_init(1463): 16
Total: 52687808
}
I attached my kamailio script used and a log with one call using the command
"kamcmd corex.shm_summary" with modparam("corex",
"nio_intercept", 1)
and modparam("corex", "nio_intercept", 0)
Regards,
Vanderlei