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Cisco Bug: CSCvt28977 - [CUPS] Assertion failure at egtpc_handle_user_sap_event

Last Modified

Oct 02, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.16.4 21.16.c10 21.16.c9.74593 21.17.6 21.18.2 21.19.0 21.19.n1

Description (partial)

Symptom:
Sessmgr assertion at egtpc_handle_user_sap_event with the following stack.  Please note the stack may vary:

Assertion failure at sess/egtp/egtpc/egtpc_interface.c:172
  Function: egtpc_handle_user_sap_event()
  Expression: (((tun_rec) != ((void *)0)) && ((tun_rec)->magic == (('T'<<24) | ('U'<<16) | ('N'<<8) | ('R'))) && ((tun_rec)->active == (1)))
  Proclet: sessmgr (f=87000,i=43)
 
  Stack (131071@0x0xffafd000, probably truncated):
    [ffffe430/X] __kernel_vsyscall() sp=0xffafd068
    [0d0fa247/X] sn_assert() sp=0xffafd0c8
    [0885a791/X] egtpc_handle_user_sap_event() sp=0xffafdd18
    [06006f23/X] sgwdrv_send_purge_to_egtpc() sp=0xffafe4f8
    [06037d05/X] sgwdrv_send_purge_to_lower_layer() sp=0xffafe548
    [06088638/X] sgwdrv_pdn_fsm_st_disconnecting_sx_pending_evt_clear_pdn_sgw_ho.isra.174() sp=0xffafe5c8
    [060b9c17/X] sgwdrv_run_pdn_fsm() sp=0xffafea78
  Last Bounce:

Conditions:
Received S5 error indication then processing DSR, DBR & Sx delete initiated
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