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@lists.kamailio.org>
Enviado: terça-feira, 2 de julho de 2024 09:24
Para: sr-users@lists.kamailio.org <sr-users@lists.kamailio.org>
Cc: Vanderlei Torres Batistela <v.batistela@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