APAR status
Closed as program error.
Error description
Error Message: The crash may be inside of the J9ReadBarrier handling, for example GC_ObjectModelDelegate::calculateObjectDetailsForCopy or a similar GC function. The symptom is a bad forwarded object or corrupted object. . Stack Trace: ExtraSymbolsModule::GC_ObjectModelDelegate::calculateObjectDetai lsForCopy(MM_EnvironmentBase*,MM_ForwardedHeade...+0x4e ExtraSymbolsModule::MM_Scavenger::copy(MM_EnvironmentStandard*,M M_ForwardedHeader*)+0xcc ExtraSymbolsModule::MM_Scavenger::copyObject(MM_EnvironmentStand ard*,MM_ForwardedHeader*)+0x18 ExtraSymbolsModule::MM_StandardAccessBarrier::preObjectRead(J9VM Thread*,J9Object*,unsigned int*)+0x55c ExtraSymbolsModule::J9ReadBarrier+0x4e lib/s390x/compressedrefs/libj9vm29.so::invokeJ9ReadBarrier+0x30 lib/s390x/compressedrefs/libj9vm29.so::handleGuardedStorageEvent +0x7e .
Local fix
This problem can be worked around by either not running with -Xgc:concurrentScavenge or by disabling transactional memory in the JIT compiler via -Xjit:disableTM,disableTLE
Problem summary
The problem is outlined in detail in the pull request which fixes the issue: https://github.com/eclipse/openj9/pull/2545
Problem conclusion
The JIT compiler has been updated to avoid the problem. . This APAR will be fixed in the following Java Releases: 8 SR5 FP21 (8.0.5.21) Except with z/OS where this APAR is fixed in: 8 SR5 FP22 (8.0.5.22) . 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
IJ08375
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-08-08
Closed date
2018-08-08
Last modified date
2018-09-19
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
JIT
Fixed component ID
620700124
Applicable component levels
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"130","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
19 September 2018