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Cisco Bug: CSCvv74451 - C9300-48P-A Stack Member crash after IOS upgrade

Last Modified

Oct 29, 2020

Products (1)

  • Cisco Catalyst 9300 Series Switches

Known Affected Releases

16.9.4 16.9.5

Description (partial)

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]
 
  1. 0x7f03be21dfd8 aom_ack ---> infra/aobjman/src/aom_api.c:4579
  2. 0x5558575fe634 fman_l2cp_hw_l2cp_cfg_cb ---> fman/fp/src/fman_l2cp.c:871
  3. 0x55585770d369 fed_l2cp_fed_l2cp_ack_message_handler ---> fman/fp/src/../doppler/src/fman_l2cp_doppler.c:331
  4. 0x7f03b3861a4f fed_l2cp_ack_message_unmarshal ---> infra/tdl/_gen_tdl_noarch/fed_l2cp/src/fed_l2cp_message.c:2732
  5. 0x7f03a17d4c12 fman_fp_katana_message_dispatch_lut ---> infra/tdl/_gen_tdl_noarch/fman_fp_katana/src/fman_fp_katana_message.c:143266
  6. 0x7f03a17d4a00 fman_fp_katana_message_dispatch ---> infra/tdl/_gen_tdl_noarch/fman_fp_katana/src/fman_fp_katana_message.c:143288
  7. 0x5558576c858c doppler_client_smc_async_msg_hdlr ---> fman/fp/src/../doppler/src/fman_client_ctrl_doppler.c:563
  8. 0x7f03b8ef8b97 smc_msg_read_internal ---> infra/smc/src/smc.c:417
  9. 0x7f03c93e1942 __evDispatch ---> infra/contrib/evlib/../../../contrib/bind/lib/bind/isc/eventlib.c:1466
 10. 0x7f03c93e244c __evMainLoop ---> infra/contrib/evlib/../../../contrib/bind/lib/bind/isc/eventlib.c:803
 11. 0x5558574d3465 call_evmainloop ---> ./linkfarm/x86_64_cge7/usr/binos/include/evutil/evutil.h:57
 12. 0x5558575b5418 binos_main
 13. 0x5558577f9f8d pcohort_process_state ---> fman/fp/src/../../../procmgr/pcohort/src/pcohort.c:3199
 14. 0x5558577f756b pcohort_main ---> fman/fp/src/../../../procmgr/pcohort/src/pcohort.c:3450
 15. 0x7f0397fb68e5 __libc_start_main ---> /usr/src/debug/glibc/2.23-r0/git/csu/libc-start.c:327
 16. 0x5558573ea159 _start ---> ../sysdeps/x86_64/start.S:121

Conditions:
This issue may be seen on Catalyst 9300 stack switch.
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