APAR status
Closed as program error.
Error description
Error Message: The following assertion might be triggered at JVM shutdown when a user is running with -Xgc:concurrentScavenge option and on a machine with high number of cores or with -Xgcthreads option set to run with large number of GC threads: CS not in progress, found a object in Survivor: slot 0X.. object 0x.. j9mm.141 * ** ASSERTION FAILED ** at StandardAccessBarrier.cpp:701: ((false)) . Stack Trace: MM_StandardAccessBarrier::preObjectRead at StandardAccessBarrier.cpp:700 internalPreReadObject at ObjectAccessBarrierAPI.hpp:2810 preIndexableObjectReadObject at ObjectAccessBarrierAPI.hpp:2114 inlineIndexableObjectReadObject at ObjectAccessBarrierAPI.hpp:1819 aaload at BytecodeInterpreter.hpp:5654 VM_BytecodeInterpreter::run at BytecodeInterpreter.hpp:9262 bytecodeLoop at BytecodeInterpreter.cpp:100 c_cInterpreter () at xcinterp.s:150 cleanUpAttachedThread at callin.cpp:459 protectedDestroyJavaVM at jniinv.c:336 omrsig_protect at omrsignal.c:394 DestroyJavaVM (javaVM=0x7f1170011940) at jniinv.c:498 DestroyJavaVM (javaVM=0x7f1170011940) at jvm.c:562 JavaMain () start_thread clone () .
Local fix
This is issue can be avoided by removing -Xgc:concurrentScavenge option. This might cause some performance degradation in throughput and consistency of response-times as it will disable Concurrent Scavenger.
Problem summary
This problem is caused by a special case with initializing internal structures for Concurrent Scavenger.
Problem conclusion
The JVM has been updated to handle this initialization case correctly in Concurrent Scavenger. . This APAR will be fixed in the following Java Releases: 8 SR5 FP16 (8.0.5.16) . 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
IJ06288
Reported component name
J9 COMMON CODE
Reported component ID
620700127
Reported release
270
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-05-08
Closed date
2018-05-10
Last modified date
2018-05-10
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
R270 PSY
UP
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Document Information
Modified date:
22 February 2022