RLS failure [Socket bind failed: Address already in use] <--and--> GTP/UDP task could not be created. Socket bind failed: Address already in use

[chiducaf]

Hi @aligungr @louisroyer I'm facing the below issue, Could you pls help me to understand the cause of this issue?

when executing ss -unlp | grep ':4997' I'm getting below one

Croot@ueransim-gnb-deployment-ddf87f74c-bntvq:/UERANSIM# ss -unlp | grep ':4997'
UNCONN    0         0                  0.0.0.0:4997             0.0.0.0:*        users:(("nr-gnb",pid=1,fd=4))

and this is when firing ps -ax | grep nr-gnb

root@ueransim-gnb-deployment-ddf87f74c-bntvq:/UERANSIM# ps -ax | grep nr-gnb
      1 ?        Ssl    0:13 ./build/nr-gnb -c ./config/free5gc-gnb.yaml
    355 ?        Z      0:00 [nr-gnb] <defunct>
   1021 pts/2    S+     0:00 grep --color=auto nr-gnb

Note: All my setup is running on the same machine.

free5gc-gnb.yaml

free5gc-ue.yaml

free5gc-amf.yaml

free5gc-smf.yaml

free5gc-upf.yaml

Waiting for your quick reply!!

[louisroyer]

Hi @chiducaf you have a zombie process (355), probably from a previous attempt, already listening on 0.0.0.0:4997. You should ensure to kill it first. Also, I don't recommend running the core on the same machine than the RAN. UEs and gNB share the same machine, but you should use 127.0.0.1 instead of 0.0.0.0, especially on gnbSearchList where 0.0.0.0 makes no sense at all.