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Cisco Bug: CSCsz20653 - ACE crash due to deadlock between TCP_TX and CM_CLOSE

Last Modified

Jan 31, 2017

Products (1)

  • Cisco ACE Application Control Engine Module

Known Affected Releases

3.0(0)A2(1.2.74)

Description (partial)

Symptom:
In a high traffic scenario, IXP crashed with core due to deadlock between two micro engines in the data plane. 


Conditions:
This crash happened when one micro engine was in the process of closing the connection when the other micro engine was internally processing a RST/FIN for the same connection.
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