APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: N/A .
Local fix
This issue can be avoided using the -Xjit:disableLoopVersioner option. This option may cause a noticeable performance degradation.
Problem summary
The JIT compiler was performing a loop optimization that resulted in an incorrect branch condition being generated in compiled code, resulting in the unintended execution of either a fast or slow loop.
Problem conclusion
This defect will be fixed in: 7.0.0 SR1 6.0.1 SR2 6.0.0 SR11 5.0.0 SR14 . The JIT compiler has been amended to prevent this incorrect behaviour.
Temporary fix
Comments
APAR Information
APAR number
IV26851
Reported component name
JAVA 5 JIT
Reported component ID
620500124
Reported release
500
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-08-22
Closed date
2012-08-22
Last modified date
2012-09-06
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
JAVA 5 JIT
Fixed component ID
620500124
Applicable component levels
R500 PSN
UP
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