Cisco Bug: CSCvv43479 - [BP-CUPS]: Assertion failure at egtpc_handle_delete_bearer_req_evt leading to 30% call-drop
Oct 12, 2020
- Cisco PGW Packet Data Network Gateway
Known Affected Releases
21.18.11 21.18.8.private 21.21.0 21.21.G0.77111
Symptom: Assertion failure at egtpc_handle_delete_bearer_req_evt Stack (131071@0x0xff9ab000, probably truncated): [ffffe430/X] __kernel_vsyscall() sp=0xff9ab658 [0d101f27/X] sn_assert() sp=0xff9ab6b8 [08c1749a/X] egtpc_handle_delete_bearer_req_evt() sp=0xff9abb88 [08c2268d/X] egtpc_handle_user_sap_event() sp=0xff9ac7d8 [059b40ed/X] pgw_drv_send_delete_bearer_req_to_egtpc() sp=0xff9ad098 Last Bounce: Conditions: As part of pure P to collapse , PGW received MBrequest while egtpc in MBR pending state. When PGW processing the MBR, sx Modify got filed with below reason Usage Report Failing and PGW is triggering delete bearer request towards egtpc.
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