Symptom
A member of C9300 stack switch crashed after IOS upgrade.
Before crash following log and traceback was detected in standby switch.
2020/09/12 17:00:42.257 {fman_fp_F0-0}{2}: [l2cp] [21995]: UUID: 0, ra: 0, TID: 0 (ERR): L2CP: AOM ack for update_id 15684109 failed - Invalid argument
2020/09/12 17:00:42.258 {fman_fp_F0-0}{2}: [aom] [21995]: UUID: 0, ra: 0, TID: 0 (ERR): Unable to find async context for AOM
2020/09/12 17:00:42.258 {fman_fp_F0-0}{2}: [aom] [21995]: UUID: 0, ra: 0, TID: 0 (ERR):Traceback: [1#89c876da791401c2102da55c52758fa1 aobjman:7F03BE214000+9FD8 :5558572AB000+353634 :5558572AB000+462369 fed_l2cp:7F03B3859000+8A4F fman_fp_katana:7F03A154A000+28AC12 fman_fp_katana:7F03A154A000+28AA00 :5558572AB000+41D58C smc:7F03B8EF2000+6B97 evlib:7F03C93D9000+8942 evlib:7F03C93D9000+944C :5558572AB000+228465 :5558572AB000+30A418 :5558572AB000+54EF8D :5558572AB000+54C56B c:7F0397F96000+208E5 :5558572AB000+13F159]
Conditions
This issue may be seen on Catalyst 9300 stack switch.
