APAR status
Closed as program error.
Error description
Error Message: Unhandled exception Type=Segmentation error vmState=0x00000000 J9Generic_Signal_Number=00000004 Signal_Number=0000000b Error_Value=00000000 . Stack Trace: .
Local fix
This problem was exposed by inlining, so -Xjit:disableInlining would work around it, with a significant performance penalty.
Problem summary
More aggressive inlining exposed an ancient bug in how the JIT deals with virtual guards.
Problem conclusion
This defect will be fixed in: 6.0.0 SR10 . The JIT's virtual guard handling code was fixed.
Temporary fix
Comments
APAR Information
APAR number
IV12188
Reported component name
JIT
Reported component ID
620700124
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-12-17
Closed date
2011-12-17
Last modified date
2011-12-17
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
R600 PSY
UP
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Document Information
Modified date:
17 December 2011