APAR status
Closed as program error.
Error description
Error Message: A segmentation error is raised by the JIT compiler with vmstate=0x51eff. . Stack Trace: N/A . This problem is known to be very intermittent
Local fix
The JVM option -Xjit:disablePRE may be sufficient to stop the failure from occurring in some cases. This option is known to have a moderate impact on the performance of some workloads. No workaround is known to be completely effective at preventing all occurrences of this failure.
Problem summary
The problem was caused by a JVM runtime compiler optimization incorrectly handling one of the runtime safety checks of the Java programming language. The resolution check verifies that a symbolic class name resolves to a particular class that the JVM can identify. An internal JIT data structure associated with this check could be modified to an incorrect state, resulting in the crash.
Problem conclusion
The problematic optimization was corrected to ensure that this runtime safety check is correctly handled. . This APAR will be fixed in the following Java Releases: 8 SR2 (8.0.2.0) 7 SR9 FP20 (7.0.9.20) 7 R1 SR3 FP20 (7.1.3.20) 6 R1 SR8 FP15 (6.1.8.15) 6 SR16 FP15 (6.0.16.15) . 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
IV78431
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-10-27
Closed date
2015-10-27
Last modified date
2015-10-27
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
R260 PSY
UP
R600 PSY
UP
[{"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:
27 October 2015