APAR status
Closed as program error.
Error description
Error Message: j> 11:54:11 Unhandled exception j> 11:54:11 Type=Segmentation error vmState=0x0005ff0c j> 11:54:11 J9Generic_Signal_Number=00000004 Signal_Number=0000000b Error_Value=00000000 Signal_Code=00000001 j> 11:54:11 Handler1=00007FFC2EF16400 Handler2=00007FFC2EBBD970 InaccessibleAddress=0000000000000020 j> 11:54:11 Module=/jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-jav a-x86_64-70/jre/lib/amd64/default/libj9jit26.so j> 11:54:11 Module_base_address=00007FFC2DA04000 . Stack Trace: j> 11:54:11 ----------- Stack Backtrace ----------- j> 11:54:11 (0x00007FFC2DFA8EBB <OSB>libj9jit26.so+0x5a4ebb<CSB>) j> 11:54:11 (0x00007FFC2DAC1E17 <OSB>libj9jit26.so+0xbde17<CSB>) j> 11:54:11 (0x00007FFC2DB950E2 <OSB>libj9jit26.so+0x1910e2<CSB>) j> 11:54:11 (0x00007FFC2DB9BA0D <OSB>libj9jit26.so+0x197a0d<CSB>) j> 11:54:11 (0x00007FFC2DB0F33C <OSB>libj9jit26.so+0x10b33c<CSB>) j> 11:54:11 (0x00007FFC2DB1BF5E <OSB>libj9jit26.so+0x117f5e<CSB>) j> 11:54:11 (0x00007FFC2DAA2190 <OSB>libj9jit26.so+0x9e190<CSB>) j> 11:54:11 (0x00007FFC2DAA3B65 <OSB>libj9jit26.so+0x9fb65<CSB>) j> 11:54:11 (0x00007FFC2EBBE73F <OSB>libj9prt26.so+0x1f73f<CSB>) j> 11:54:11 (0x00007FFC2DAA50C3 <OSB>libj9jit26.so+0xa10c3<CSB>) j> 11:54:11 (0x00007FFC2DAA5D03 <OSB>libj9jit26.so+0xa1d03<CSB>) j> 11:54:11 (0x00007FFC2EBBE73F <OSB>libj9prt26.so+0x1f73f<CSB>) j> 11:54:11 (0x00007FFC2DAA6637 <OSB>libj9jit26.so+0xa2637<CSB>) j> 11:54:11 (0x00007FFC2EDF43C9 <OSB>libj9thr26.so+0x93c9<CSB>) j> 11:54:11 (0x00000034902077E1 <OSB>libpthread.so.0+0x77e1<CSB>) j> 11:54:11 clone+0x6d (0x000000348FEE68ED <OSB>libc.so.6+0xe68ed<CSB>) j> 11:54:11 --------------------------------------- . #11 <signal handler called> #12 0x00007ffc2dfa8ebb in TR_MCCCodeCache::findTrampoline(J9Method*) () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #13 0x00007ffc2dac1e17 in TR_J9VM::methodTrampolineLookup(TR_Compilation*, TR_SymbolReference*, void*) () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #14 0x00007ffc2db950e2 in TR_X86ImmSymInstruction::generateBinaryEncoding() () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #15 0x00007ffc2db9ba0d in TR_X86CodeGenerator::doCodeGeneration() () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #16 0x00007ffc2db0f33c in TR_CodeGenerator::generateCode() () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #17 0x00007ffc2db1bf5e in TR_Compilation::compile() () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #18 0x00007ffc2daa2190 in TR_CompilationInfoPerThreadBase::compile(J9VMThread*, TR_Compilation*, TR_Options*, TR_ResolvedMethod*, TR_FrontEnd&, TR_OptimizationPlan*) () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #19 0x00007ffc2daa3b65 in TR_CompilationInfoPerThreadBase::wrappedCompile(J9PortLibrary*, CompileParameters*) () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #20 0x00007ffc2ebbe73f in j9sig_protect () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9prt26.so #21 0x00007ffc2daa50c3 in TR_CompilationInfoPerThreadBase::compile(J9VMThread*, TR_MethodToBeCompiled*, bool) () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so #22 0x00007ffc2daa5d03 in protectedCompilationThreadProc(J9PortLibrary*, TR_CompilationInfoPerThread*) () from /jtctest/sdk_installs/pxa6470/pxa6470-20110607_02/ibm-java-x86_6 4-70/jre/lib/amd64/default/libj9jit26.so
Local fix
Problem summary
A a request to allocate addition space for an internal JIT data structure incorrectly registered the location of the request. As a result, a NULL pointer was returned when attempting to retrieve the data structure.
Problem conclusion
This defect will be fixed in: 6.0.0 SR11 . The JIT was changed to properly register the site requesting the allocation.
Temporary fix
Comments
APAR Information
APAR number
IV26850
Reported component name
JIT
Reported component ID
620700124
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-08-22
Closed date
2012-08-31
Last modified date
2012-08-31
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:
31 August 2012