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Cisco Bug: CSCvu83588 - [CUPS] Assertion failure at sess/snx/drivers/sgw/sgw_drv.c

Last Modified

Aug 31, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.17.1

Description (partial)

Symptom:
Unexpected sessmgr restart observed with following stack trace

Assertion failure at sess/snx/drivers/sgw/sgw_drv
  Function: snx_sgw_driver_handle_modify_rsp()
  Expression: pdn_found == (!(0))
  Proclet: sessmgr (f=87000,i=17)
  Process: card=7 cpu=0 arch=X pid=36521 cpu=~2% argv0=sessmgr
  time: 2020-Jun-29+06:55:45 UTC
  Recent errno: 11 Resource temporarily unavailable
  Build_number: 74081
  Stack (131071@0x0xffaf6000, probably truncated):
    [ffffe430/X] __kernel_vsyscall() sp=0xffaf6b98
    [0cc304b7/X] sn_assert() sp=0xffaf6bf8
    [060f9148/X] snx_sgw_driver_handle_modify_rsp() sp=0xffaf6ce8
    [061b6580/X] sgwdrv_request_control_dispatch() sp=0xffaf81c8
    [061ffd33/X] saegwdrv_ue_fsm_st_active_evt_sgw_modify_rsp() sp=0xffaf8248
    [06218493/X] snx_saegwdrv_request_control_dispatch() sp=0xffaf8478
    [0437a6ba/X] sessmgr_sgw_send_modify_rsp() sp=0xffaf8d68
    [047eaf9a/X] smc_sxa_pdn_fsm_handle_sm_rsp_trgr_csrsp() sp=0xffaf9508
    [0480ce78/X] smc_sxa_pdn_fsm_handle_sm_rsp() sp=0xffaf9588
    [04814d13/X] smc_sx_handle_events_from_sx() sp=0xffaf95a8
    [09322509/X] sx_send_cfm_evt() sp=0xffaf9ad8
    [09324e4e/X] sx_tun_fsm_handle_sess_mod_rsp_msg() sp=0xffaf9f78
  Last Bounce:

Conditions:
Seen in CUPS setup
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