Hello,

I couldn't spot any error message in the log file that you attached, have you taken it when you encountered the problem?

Anyhow, I am not familiar with the implementation of the event_route[network:msg], but the shm info indicates the leak to be related to avp, so I pushed a patch to destroy the nio_msg_avp avp after event route execution. Can you try with git master branch and see if works ok?

Cheers,
Daniel

On 02.07.24 16:24, Vanderlei Torres Batistela via sr-users wrote:

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 memmory 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 memmory 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
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