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Cisco Bug: CSCur41618 - Assertion failure at pgw_drv_handle_events_from_smgr

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0(51) 14.1(400) 15.0(21)

Description (partial)

Symptom:
sessmgr crash:
Crash occurs while sending CSRsp.

Conditions:
This crash may happen for a multi-pdn call at PGW.
PDN-1 established. CSReq / CSRsp successful.

PDN-1 has 4G-3G-4G handoff. 
	4G-3G handoff successful.
During 3G-4G handoff of PDN-1, PDN-2 is getting established.

However, due to network delay, CSReq for PDN-2 reaches PGW before handoff MBReq for PDN-1.
There is a delay (48 sec in this case) on Gy side due to which CSRsp for PDN-2 is delayed.
In the meanwhile, 3G-4G handoff of PDN-1 completes.
Crash occurs when response comes from Gy for PDN-1 and CSRsp is to be sent.
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