A readme is available
APAR status
Closed as program error.
Error description
ERROR DESCRIPTION:Ø PROBLEM DESCRIPTION: ITM Linux agent (v6.3.0.6) crashes randomly, and although it is restarted by the watchdog process, it keeps creating core files within /opt/IBM/ITM/bin. The Agent is executing Autonomous mode when the failure occurs. The trace log file shows that an instruction for the TRANSCON situation is NULL. RECREATE INSTRUCTIONS: This problem is timing related, and is seen only under specific environmental conditions when many Threads are being serviced by the Tivoli Enterprise Monitoring Agent Framework. Reproducing the problem is extremely difficult.
Local fix
LOCAL FIX:Ø n/a
Problem summary
The Linux Operating System Agent will abend periodically during the course of its processing. The Agent is running in Autonmous Mode (without connectivity to a Monitoring Server) and is using the services of a Central Configuration Server to support the Agent's configuration. When executing in the Autonomous Mode, the Agent's Agent Service Interface processing will control the processing associated with the retrieval of Agent configuration information from the Central Configuration Server. It also controls the execution of Private Situations processed by the Agent. The orderly of processing of Situations and Configuration processing is managed using the 'Active' queue. The Active queue does not have any locking implementation, and as a result it is possible for Active queue elements to be removed while other threads are also accessing elements on the same queue. Without any lock implementation it is possible for multiple threads to access to released memory which may result in an memory access violation and subsequent abend of the process.
Problem conclusion
Implement a locking mechanism for the Active queue used by the Agent Service Interface. The fix for this APAR is contained in the following maintenance packages: | service pack | 6.3.0.7-TIV-ITM-SP0001 | interim fix | 6.3.0.7-TIV-ITM_TEMA-IF0007
Temporary fix
Comments
APAR Information
APAR number
IV84599
Reported component name
CMI - AGENT FMW
Reported component ID
5724K0901
Reported release
630
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-05-10
Closed date
2018-07-26
Last modified date
2019-05-06
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
TEMA
Fixed component ID
5724C04TE
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSTFXA","label":"Tivoli Monitoring"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"630","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
08 March 2023