Guest

Preview Tool

Cisco Bug: CSCuo80880 - Assertion failure on Function: egtpc_unbind_user_sap

Last Modified

Dec 26, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

16.0(1) 17.0 17.2.0.59065 17.3.0.59832

Description (partial)

Symptom:
Crash in
[076c8817/X] egtpc_unbind_user_sap() sp=0xffffb198
[051a774c/X] sgwdrv_deallocate_pdn() sp=0xffffb208
[051a7bd1/X] sgwdrv_deallocate_callline() sp=0xffffb258
[051a81fb/X] sgwdrv_close() sp=0xffffb2a8
[045667d0/X] snx_driver_close() sp=0xffffb2e8
[05cf4d4b/X] sessmgr_snx_unplumb_stack() sp=0xffffb338
[03512a52/X] sessmgr_terminate_service() sp=0xffffb398

Conditions:
i) A Collapsed Call is relocated to 3g from LTE .
ii) Delete Session Request is not yet received so we have Sessmgr clp as GGSN with SGW side still there.
iii) SGW service is stopped (due to switchover/PSC card migration/done by admin), which causes cleanup of call via posting abort. However, as the call become GGSN , abort is not posted on it.
iv) When drivers are cleaned up (sgw/saegw) they are cleaned up locally, which causes session hanging at egtpc.
v) When egptc layer is cleaning up, it sees some pdn session for UE, which shouldn't be there and crashes.
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.