APAR status
Closed as program error.
Error description
Error Message: A GPF, segmentation fault, or S0C4 ABEND is raised in the Java JIT compiler module (j9jit26). The Java core dump reports that the value of VM flags (vmState) is 0x000565ff. . Stack Trace: TR_VPClass::intersect1(TR_VPConstraint*,TR_ValuePropagation*) TR_VPConstraint::intersect(TR_VPConstraint*,TR_ValuePropagation* ) TR_ValuePropagation::addConstraintToList(TR_Node*,int,int,TR_VPC onstraint*,...) TR_ValuePropagation::addBlockConstraint(TR_Node*,TR_VPConstraint *,TR_Node*,bool) .
Local fix
This problem can be avoided by setting the -Xjit:disableGlobalVP option. Note that this option may cause some performance degradation.
Problem summary
The value propagation optimization could, in some circumstances, insert a NULL pointer in one of its data structures and subsequently crash.
Problem conclusion
This APAR will be fixed in the following Java Releases: 7 R1 SR3 (7.1.3.0) 7 SR7 (7.0.7.0) 6 R1 SR8 (6.1.8.0) 6 SR16 FP4 (6.0.16.4) 8 SR1 (8.0.1.0) . The JIT compiler has been fixed to check for this condition and prevent the insertion of the NULL pointer.
Temporary fix
Comments
APAR Information
APAR number
IV58626
Reported component name
JIT
Reported component ID
620700124
Reported release
260
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-04-02
Closed date
2014-04-02
Last modified date
2015-03-09
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI36290
Fix information
Fixed component name
JIT
Fixed component ID
620700124
Applicable component levels
R260 PSY
UP
R600 PSY
UP
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Document Information
Modified date:
09 March 2015