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Cisco Bug: CSCvs55556 - AssertFail egtpu_process_invalid_evt() egtpu_handle_user_sap_event() sessmgr_uplane_gtpu_tx_setup()

Last Modified

Oct 02, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.15.20 21.15.23 21.16.3 21.16.c5 21.16.c5.74004 21.16.d0 21.18.0

Description (partial)

Symptom:
CISCO Packet gateway service running on the CUPS architecture encounters session management proclet restarts on the high availability redundancy node.

  Stack (131071@0x0xff754000, probably truncated):
    [ffffe430/X] __kernel_vsyscall() sp=0xff754608
    [0d0ef247/X] sn_assert() sp=0xff754668
    [089c90d1/X] egtpu_process_invalid_evt() sp=0xff754aa8
    [089e2696/X] egtpu_handle_user_sap_event() sp=0xff754f48
    [049b2e3f/X] sessmgr_uplane_gtpu_tx_setup() sp=0xff755178
  Last Bounce:

Conditions:
1)  For the UE doing state transition from ACTIVE to IDLE and IDLE to ACTIVE at hgh rate
2) Userplane should be running in the ICSR pair
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