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Cisco Bug: CSCvu50670 - Assertion failure at sess/smgr/sessmgr_sxu on Active control-plane

Last Modified

Sep 17, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.18.2.75626 21.18.6

Description (partial)

Symptom:
Single Sessmgr restart was seen on Active control plane node carrying IMS (sgw-c + pgw-c) and Data (sgw-c) APN traffic
FOA2 T-Mobile

More details:
SW Version : 21.18.2

Assertion failure at sess/smgr/sessmgr_sxu.c:625
Function: sessmgr_sxu_send_tx_setup_to_egtpu()
Expression: 0
Proclet: sessmgr (f=87000,i=34)
Process: card=1 cpu=0 arch=X pid=22712 cpu=~0% argv0=sessmgr
Restart time: 2020-May-18+00:26:32 UTC
Recent errno: 11 Resource temporarily unavailable
Build_number: 75626
Stack (131071@0x0xff9b5000, probably truncated):
[ffffe430/X] __kernel_vsyscall() sp=0xff9b58c8
[0cceacf7/X] sn_assert() sp=0xff9b5928
[0463313c/X] sessmgr_sxu_send_tx_setup_to_egtpu() sp=0xff9b5ac8
[049f5de9/X] smc_sxb_sxab_pdn_fsm_handle_sm_response() sp=0xff9d4dd8
[04847f70/X] smc_sx_handle_events_from_sx() sp=0xff9d4df8
Last Bounce:

Conditions:
NA
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