Cisco Bug: CSCuj83365 - ST40-PSC3:sessmgr assert in sessmgr_lns_handle_l2tpmgr_session_started()
Dec 25, 2016
- Cisco ASR 5000 Series
Known Affected Releases
15.0(1) 15.0(14) 15.0(16)
In 15.0. as part of SMGR memory optimization, l2tp_lns_info is changed to dynamic memory when the session is actually a l2tp session. In the original code, the l2tp_lns_info is freed in an early stage of the session clean-up procedure, which could trigger an ASSERT() under uncertain race conditions. The fix is to free the l2tp_lns_info at the very end of the session clean-up procedure to ensure correct behavior. Symptom: SMGR crash Conditions: The issue is observed when l2tp_session_start message is received while the call is being torn down.
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