AMF Crashes - open5gs-2.1.0.tgz

[nitinbhat]

Hi,

I used open5gs-2.1.0.tgz charts to deploy it on my kubernetes cluster with default amf configuration. I see amf crashes whenever a registration request is received,

01/16 12:30:11.344: [amf] INFO: gNB-N2[10.1.0.44] max_num_of_ostreams : 1 (../src/amf/amf-sm.c:780) 01/16 12:30:11.359: [amf] WARNING: NG-Setup failure: (../src/amf/ngap-handler.c:313) 01/16 12:30:11.359: [amf] WARNING:     Cannot find Served TAI. Check 'amf.tai' configuration (../src/amf/ngap-handler.c:314) 01/16 12:37:53.959: [amf] INFO: gNB-N2 accepted[10.1.0.44]:36493 in ng-path module (../src/amf/ngap-sctp.c:113) 01/16 12:37:53.959: [amf] INFO: gNB-N2 accepted[10.1.0.44] in master_sm module (../src/amf/amf-sm.c:741) 01/16 12:37:53.959: [amf] INFO: [Added] Number of gNBs is now 2 (../src/amf/context.c:1178) 01/16 12:37:53.959: [amf] INFO: gNB-N2[10.1.0.44] max_num_of_ostreams : 1 (../src/amf/amf-sm.c:780) 01/16 12:46:49.065: [amf] INFO: gNB-N2 accepted[10.1.0.44]:38243 in ng-path module (../src/amf/ngap-sctp.c:113) 01/16 12:46:49.065: [amf] INFO: gNB-N2 accepted[10.1.0.44] in master_sm module (../src/amf/amf-sm.c:741) 01/16 12:46:49.066: [amf] INFO: [Added] Number of gNBs is now 3 (../src/amf/context.c:1178) 01/16 12:46:49.066: [amf] INFO: gNB-N2[10.1.0.44] max_num_of_ostreams : 1 (../src/amf/amf-sm.c:780) 01/16 12:47:39.633: [amf] INFO: InitialUEMessage (../src/amf/ngap-handler.c:372) 01/16 12:47:39.633: [amf] FATAL: ran_ue_add: Assertion (gnb->max_num_of_ostreams-1) >= 1' failed. (../src/amf/context.c:1298)
01/16 12:47:39.635: [core] FATAL: backtrace() returned 11 addresses (../lib/core/ogs-abort.c:37)
open5gs-amfd(+0x114f5) [0x5606171e04f5]
open5gs-amfd(+0x5c2fd) [0x56061722b2fd]
open5gs-amfd(+0x20df4) [0x5606171efdf4]
/opt/open5gs/lib/x86_64-linux-gnu/libogscore.so.2(ogs_fsm_dispatch+0x10f) [0x7fe964a33376]
open5gs-amfd(+0x38812) [0x560617207812]
/opt/open5gs/lib/x86_64-linux-gnu/libogscore.so.2(ogs_fsm_dispatch+0x10f) [0x7fe964a33376]
open5gs-amfd(+0x90a8) [0x5606171d80a8]
/opt/open5gs/lib/x86_64-linux-gnu/libogscore.so.2(+0x10886) [0x7fe964a24886]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x7ea7) [0x7fe963dccea7]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fe963ceca2f]
/entrypoint.sh: line 43: 7 Aborted (core dumped) $@`

I am using UERANSIM here with the default configuration

Any idea what could be the issue?

or is there any new release that is available?

Thanks Nitin

[avrodriguezgrad]

Hi Nitin,

What steps did you do to deploy the charts? Did you follow our tutorial?

Thanks, Álvaro

[nitinbhat]

Hi Álvaro,

Yes, I followed the same steps mentioned in the tutorial.

Just that I am not using gNBs and UE as pods but running them outside the cluster but with same configuration and same version of UERANSIM i.e v3.2.6. Please let me know if you need more details on this.

Thanks Nitin

[nitinbhat]

Update on this Issue, gNB was sending Inbound and Outbound streams as 1 in SCTP handshake which caused this crash. i do not see a crash after updating it to 10