IV44117: JIT CRASHES WITH VMSTATE=0X0005FF0C ON ZEC12 WITH -XAGGRESSIVE
Closed as program error.
Error Message: A segmentation fault is raised in libj9jit26.so; the reported VM state is vmState=0x0005ff0c. This problem only occurs on a zEC12 with -Xaggressive enabled. . Stack Trace: #11 in generateS390LabelInstruction(TR_CodeGenerator*, TR_S390OpCodes, TR_Node*, TR_LabelSymbol*, TR_Instruction*) #12 in TR_S390PrivateLinkage::createEpilogue(TR_Instruction*) #13 in TR_S390CodeGenerator::doCodeGeneration() #14 in TR_CodeGenerator::generateCode() #15 in TR_Compilation::generateCode() #16 in TR_Compilation::compile() .
Removing the -Xaggressive option works around the problem.
The crash is caused by a timing issue with branch preload optimization in the JIT compiler.
This defect will be fixed in: 7.0.0 SR5 . The JIT compiler has been updated with the fix to branch preload optimization.
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