APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: 1 CEEOPMD +000009F6 2 pthread_mutex_destroy 3 j9thread_monitor_destroy 4 objectMonitorDestroy 5 MM_MarkingSchemeRootClearer::doMonitorReference(J9ObjectMoni 6 MM_RootScanner::scanMonitorReferences(MM_EnvironmentModron*) 7 MM_RootScanner::scanClearable(MM_EnvironmentModron*) 8 MM_MarkingScheme::markLiveObjectsComplete(MM_EnvironmentStan 9 MM_ParallelMarkTask::run(MM_EnvironmentModron*) 10 MM_Dispatcher::run(MM_EnvironmentModron*,MM_Task*) 11 MM_ParallelGlobalGC::masterThreadGarbageCollect(MM_Environme 12 MM_ConcurrentGC::internalGarbageCollect(MM_EnvironmentModron 13 MM_Collector::garbageCollect(MM_EnvironmentModron*,MM_Memory 14 MM_MemorySubSpace::systemGarbageCollect(MM_EnvironmentModron 15 MM_MemorySubSpace::systemGarbageCollect(MM_EnvironmentModron . Garbage Collection Mark cycle takes long time. Performance profiling shows pthread_mutex_destroy as one of most "hot" calls
Local fix
Non
Problem summary
Destruction of mutexes can take long time on ZOS which might prolong GC Marking stage.
Problem conclusion
Code was changed to optimize work with monitors and avoid destruction of mutexes during GC Marking stage . This APAR will be fixed in the following Java Releases: 7 SR9 FP 10 (7.0.9.10) 6 R1 SR8 FP7 (6.1.8.7) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, information about the available Service Refreshes and Fix Packs can be found at: https://www.ibm.com/developerworks/java/jdk/
Temporary fix
Comments
APAR Information
APAR number
IV73741
Reported component name
J9 COMMON CODE
Reported component ID
620700127
Reported release
260
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-05-29
Closed date
2015-05-29
Last modified date
2015-06-29
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
J9 COMMON CODE
Fixed component ID
620700127
Applicable component levels
R260 PSY
UP
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Document Information
Modified date:
21 February 2022