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[AMF] Increase size of TMSI pool 

Each UE context has 'current' and 'next' TMSI values. AMF first
allocates the 'next' value, before confirming it and releasing the
'previous'. This means that we potentially need pool size of 2x the
amount of maximum configured UE.

Without this change, AMF would crash in case that there are 'x'
configured maximum amount of UE, and there are already 'x' registered
UE.

[gmm] INFO: Registration request (../src/amf/gmm-sm.c:135)
[gmm] INFO: [suci-0-001-01-1234-0-1-1000000000]    SUCI (../src/amf/gmm-handler.c:149)
[gmm] DEBUG:     OLD TSC[UE:0,AMF:0] KSI[UE:7,AMF:0] (../src/amf/gmm-handler.c:179)
[gmm] DEBUG:     NEW TSC[UE:0,AMF:0] KSI[UE:7,AMF:0] (../src/amf/gmm-handler.c:186)
[amf] FATAL: amf_m_tmsi_alloc: Assertion `m_tmsi' failed. (../src/amf/context.c:2160)
[core] FATAL: backtrace() returned 13 addresses (../lib/core/ogs-abort.c:37)
This commit is contained in:
Bostjan Meglic 2022-10-06 10:56:26 +00:00 committed by Sukchan Lee
parent 704fe72d11
commit b019dce982
1 changed files with 2 additions and 2 deletions
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4
src/amf/context.c
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@ -60,7 +60,7 @@ void amf_context_init(void)
ogs_pool_init(&amf_ue_pool, ogs_app()->max.ue);
ogs_pool_init(&ran_ue_pool, ogs_app()->max.ue);
ogs_pool_init(&amf_sess_pool, ogs_app()->pool.sess);
ogs_pool_init(&self.m_tmsi, ogs_app()->max.ue);
ogs_pool_init(&self.m_tmsi, ogs_app()->max.ue*2);
ogs_list_init(&self.gnb_list);
ogs_list_init(&self.amf_ue_list);
@ -2120,7 +2120,7 @@ int amf_m_tmsi_pool_generate()
int index = 0;
ogs_trace("M-TMSI Pool try to generate...");
for (i = 0; index < ogs_app()->max.ue; i++) {
for (i = 0; index < ogs_app()->max.ue*2; i++) {
amf_m_tmsi_t *m_tmsi = NULL;
int conflict = 0;