APAR status
Closed as program error.
Error description
Error Message: Segmentation error. . Stack Trace: OMR::ResolvedMethodSymbol::genAndAttachOSRCodeBlocks(...) OMR::ResolvedMethodSymbol::genIL(...) ... TR_InlinerBase::tryToGenerateILForMethod(...) ... .
Local fix
The problem can be avoided by passing -Xjit:disableOSR. This may cause performance degradation and can be selectively applied to problem methods if they can be identified.
Problem summary
The compiler's internal data structures which facilitate OSR transitions from JIT compiled code to the VM interpreter can, under rare circumstances, conflate transition information when two different copies of a method are inlined into a single unit of compilation. When this conflation happens, the compiler may attempt to duplicate or may fail to insert required OSR transition infrastructure. This error will then lead to a crash in the JIT compiler, most commonly with the backtrace shown. This failure will not result in miscompilation or runtime failures.
Problem conclusion
The JIT compiler's internal data structures have been modified to ensure that callsite specific transition information is tracked on a per callsite basis - this prevents the conflation and ensures the appropriate transition infrastructure is always added. . This APAR will be fixed in the following Java Releases: 8 SR4 FP11 (8.0.4.11) 7 R1 SR4 FP15 (7.1.4.15) . 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
IV99693
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-09-07
Closed date
2017-09-07
Last modified date
2017-09-07
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:
07 September 2017