possible UPF bug: Session Report Request after the Session was Deleted

[svinson1121]

The UPF is sending Session Report Request after the Session was Deleted, when the Gy interface is active.
In the attached PCAP you can see the session Deletion Request and Response for the two APN sessions
at Packet #91- #92 and #97 - #98 then in packet #103 and #109 the UPF sends a "Session Report Request" for the already
removed sessions. this repeats until the UPF is restarted.

UPF:
01/31 18:46:00.816: [upf] ERROR: Cause request not accepted[65] (../src/upf/n4-handler.c:479)
01/31 18:46:03.431: [upf] INFO: upf_time_threshold_cb() triggered! urr=0x7f6e9ce0f0a0 (../src/upf/context.c:790)
01/31 18:46:03.432: [upf] WARNING: No Context (../src/upf/n4-handler.c:464)
01/31 18:46:03.432: [upf] ERROR: PFCP Cause[65] : Not Accepted (../src/upf/n4-handler.c:470)
01/31 18:46:03.432: [upf] ERROR: Cause request not accepted[65] (../src/upf/n4-handler.c:479)
01/31 18:46:05.818: [upf] INFO: upf_time_threshold_cb() triggered! urr=0x7f6e9ce0f010 (../src/upf/context.c:790)
01/31 18:46:05.820: [upf] WARNING: No Context (../src/upf/n4-handler.c:464)
01/31 18:46:05.820: [upf] ERROR: PFCP Cause[65] : Not Accepted (../src/upf/n4-handler.c:470)
01/31 18:46:05.820: [upf] ERROR: Cause request not accepted[65] (../src/upf/n4-handler.c:479)
SMF:
01/31 18:46:00.821: [smf] ERROR: No Context (../src/smf/n4-handler.c:1175)
01/31 18:46:03.436: [smf] ERROR: No Context (../src/smf/n4-handler.c:1175)
01/31 18:46:05.824: [smf] ERROR: No Context (../src/smf/n4-handler.c:1175)
01/31 18:46:08.440: [smf] ERROR: No Context (../src/smf/n4-handler.c:1175)

open5gs-Gy-SMF-UPF.zip

[acetcom]

@svinson1121

I have resolved this issue and the fix has been implemented in the main branch.

Thank you so much.
Sukchan

[svinson1121]

@acetcom
The issue is resolved.
I appreciate your help.