Guest

Preview Tool

Cisco Bug: CSCus68476 - Assertion Failure at sess/sgsn/sgsn-app/gtp_c/gtapp_tun_fsm.c:6887

Last Modified

Dec 24, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.1.0

Description (partial)

Symptom:
It is observed that sessmgr crash appears with signature, which is as follows:
Assertion failure at sess/sgsn/sgsn-app/gtp_c/gtapp_tun_fsm.c:6887
Note: Rcvd Invalid Local Event <Abort Procedure> from SM-APP for IMSI:226013550179550,
  NSAPI:5.                    Current GTP State:GGSN-INITIATED-DELETE-PENDING
Function: sn_gt_process_inv_local_event()

Conditions:
->Inter rat to 2g from 3g.
->Authenication done at 2G.
->In 2G while waiting for perform confirmation received SGSN-context-request from peer sgsn (old israu procedure kick starts).
->SGSN-context-response to peer and context-ack from peer (somehow, pdp-context is stuck in UPC response pending state from GGSN).

DPCQ from ggsn on the same pdp-context.
RAU request to 3G and handoff request to 2G from 3G - this led to sessmgr restart, while trying to feed the abort-procedure event to GTP which was waiting from DPCR from SM.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.