APAR status
Closed as program error.
Error description
Error Message: Unhandled exceptionType=Segmentation error vmState=0x00000000 . Stack Trace: N/A .
Local fix
-Xjit:disableGRA will prevent the problem, at a significant cost in performance.
Problem summary
In a certain unusual case, the jit compiler failed to detect that the live ranges for two variables overlap, and incorrectly assigned both variables to the same machine register.
Problem conclusion
The JIT overlap detection logic has been corrected so it detects this case, and will assign the different variables to different machine registers. . This APAR will be fixed in the following Java Releases: 7 R1 SR2 (7.1.2.0) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, Java maintenance is available from: https://www.ibm.com/developerworks/java/jdk/
Temporary fix
Comments
APAR Information
APAR number
IV65326
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-09-26
Closed date
2014-09-26
Last modified date
2014-09-26
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
R130 PSY
UP
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Document Information
Modified date:
26 September 2014