Hello,

thanks for the report, please indicate the version of Kamailio you are using. If its an older version (e.g. not one of the 5.7.x or 5.8.x branches), I would recommend doing an update as well.

Cheers,

Henning

-----Original Message----- From: marpett365--- via sr-users sr-users@lists.kamailio.org Sent: Donnerstag, 2. Januar 2025 11:31 To: sr-users@lists.kamailio.org Cc: marpett365@gmail.com Subject: [SR-Users] ims_diameter_server not freeing shared memory

Hi,

I have run in to an issue when sending diameter requests using the ims_diameter_server module. Shared memory keeps increasing and are not being freed until restart of kamailio. This leads to all shared memory is being used and no more are able to be allocated.

This only happens when the request is sent synchronously. When sent asynchronously shared memory is being freed as far as I can see.

have anyone ran into this issue and found a remedy or can give some pointers how to proceed?

Following functions have been used for sending requests.

diameter_request([peer], appid, commandcode, message) diameter_request_async([peer], appid, commandcode, message)

route[CHECK_LOCATION] { diameter_request("hss.ims.test.local", "16777217", "306", "[ " + "{ "avpCode":260, "vendorId":0, "Flags":64, "list":[ { "avpCode":266, "vendorId":0, "Flags":64, "int32":10415 }, { "avpCode":258, "vendorId":0, "Flags":64, "int32":16777217 } ] }, " + "{ "avpCode":277, "vendorId":0, "Flags":64, "int32":1 }, " + "{ "avpCode":283, "vendorId":0, "Flags":64, "string":"ims.test.local"}, " + "{ "avpCode":706, "vendorId":10415, "Flags":192, "int32":0 }, " + "{ "avpCode":700, "vendorId":10415, "Flags":192, "list": [ { "avpCode":601, "vendorId":10415, "Flags":192, "string":"tel:" + $fU

• "" }]}, " + "{ "avpCode":707, "vendorId":10415, "Flags":192, "int32":0 }, " + "{ "avpCode":703, "vendorId":10415, "Flags":192, "int32":14 } ]");

  xlog("L_INFO", "Sent Diameter request"); }

Shared memory after restart

kamcmd mod.stats cdp shm Module: cdp { save_peer_applications(779): 144 make_send_pipe(126): 320 dp_add_pid(92): 216 AAAAddRequestHandler(69): 40 cb_add(183): 8 cb_add(177): 32 cdp_sessions_init(178): 8 cdp_sessions_init(173): 8 cdp_sessions_init(165): 1024 cdp_sessions_init(157): 3072 cdp_sessions_init(149): 8 cdp_trans_init(67): 8 cdp_trans_init(60): 24 add_timer(150): 24 add_timer(145): 144 new_peer(77): 16 new_peer(75): 16 new_peer(72): 16 new_peer(69): 80 new_peer(66): 96 new_peer(60): 384 peer_manager_init(84): 8 peer_manager_init(83): 8 peer_manager_init(82): 8 peer_manager_init(79): 8 peer_manager_init(76): 16 worker_init(101): 16 worker_init(94): 128 worker_init(89): 32 worker_init(87): 32 worker_init(84): 8 worker_init(82): 48 timer_cdp_init(182): 8 timer_cdp_init(179): 16 diameter_peer_init_real(137): 8 diameter_peer_init_real(131): 16 diameter_peer_init_real(122): 16 diameter_peer_init_real(115): 8 diameter_peer_init_real(108): 8 diameter_peer_init_real(101): 8 diameter_peer_init_real(94): 8 new_routing_entry(88): 64 parse_dp_config(447): 16 parse_dp_config(348): 8 parse_dp_config(340): 16 parse_dp_config(333): 40 parse_dp_config(326): 144 quote_trim_dup(96): 456 new_dp_config(52): 184 Total: 7024 }

Shared memory after 10 diameter requests

Module: cdp { save_peer_applications(779): 144 AAACreateAVP(137): 5072 AAATranslateMessage(500): 1320 do_receive(600): 7392 make_send_pipe(126): 320 dp_add_pid(92): 216 AAAAddRequestHandler(69): 40 cb_add(183): 8 cb_add(177): 32 cdp_sessions_init(178): 8 cdp_sessions_init(173): 8 cdp_sessions_init(165): 1024 cdp_sessions_init(157): 3072 cdp_sessions_init(149): 8 cdp_trans_init(67): 8 cdp_trans_init(60): 24 add_timer(150): 24 add_timer(145): 144 new_peer(77): 16 new_peer(75): 16 new_peer(72): 16 new_peer(69): 80 new_peer(66): 96 new_peer(60): 384 peer_manager_init(84): 8 peer_manager_init(83): 8 peer_manager_init(82): 8 peer_manager_init(79): 8 peer_manager_init(76): 16 worker_init(101): 16 worker_init(94): 128 worker_init(89): 32 worker_init(87): 32 worker_init(84): 8 worker_init(82): 48 timer_cdp_init(182): 8 timer_cdp_init(179): 16 diameter_peer_init_real(137): 8 diameter_peer_init_real(131): 16 diameter_peer_init_real(122): 16 diameter_peer_init_real(115): 8 diameter_peer_init_real(108): 8 diameter_peer_init_real(101): 8 diameter_peer_init_real(94): 8 new_routing_entry(88): 64 parse_dp_config(447): 16 parse_dp_config(348): 8 parse_dp_config(340): 16 parse_dp_config(333): 40 parse_dp_config(326): 144 quote_trim_dup(96): 456 new_dp_config(52): 184 Total: 20808 }

Shared memory after 170k requests

do_receive(600): 131363752 AAATranslateMessage(500): 32326656 AAACreateAVP(137): 110067152 Total: 273764840

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