IV17994: JVM MAY FAIL WITH GPF WHILE COMPILING AT HIGH OPT

APAR status

• Closed as program error.

Error description

• Error Message: This is a very rare problem that can cause the
  JVM to stop running and generate a core file due to a GPF while
  compiling code that deals with arrays at high optimization
  levels.
  
  Stack Trace:
  0xd5b7b510 {libj9jit24.so}{getOriginalROMMethod} [0x3208e860]
  0xd5b768e4
  {libj9jit24.so}{__ct__11TR_J9MethodFP11TR_FrontEndP9TR_MemoryP20
  TR_OpaqueMethodBlock} [0x3208e8b0]
  0xd5b71048
  {libj9jit24.so}{__ct__19TR_ResolvedJ9MethodFP20TR_OpaqueMethodBl
  ockP11TR_FrontEndP9TR_MemoryP17TR_ResolvedMethodUi} [0x3208e910]
  0xd5b78fc4
  {libj9jit24.so}{getResolvedVirtualMethod__19TR_ResolvedJ9MethodF
  P14TR_CompilationP19TR_OpaqueClassBlockib} [0x3208e970]
  0xd5db9c74
  {libj9jit24.so}{buildVirtualDispatch__20TR_PPCPrivateLinkageFP7T
  R_NodeP34TR_PPCRegisterDependencyConditionsP11TR_RegisterUi}
  [0x3208e9d0]
  0xd5dbcd20
  {libj9jit24.so}{buildIndirectDispatch__20TR_PPCPrivateLinkageFP7
  TR_Node} [0x3208eb00]
  0xd5d05440
  {libj9jit24.so}{indirectCallEvaluator__19TR_PPCTreeEvaluatorFP7T
  R_NodeP16TR_CodeGenerator} [0x3208eb90]
  0xd5b4641c
  {libj9jit24.so}{evaluate__16TR_CodeGeneratorFP7TR_Node}
  [0x3208ebd0]
  0xd5d05490
  {libj9jit24.so}{treetopEvaluator__19TR_PPCTreeEvaluatorFP7TR_Nod
  eP16TR_CodeGenerator} [0x3208ec20]
  0xd5b4641c
  {libj9jit24.so}{evaluate__16TR_CodeGeneratorFP7TR_Node}
  [0x3208ec70]
  0xd5b4292c
  {libj9jit24.so}{doInstructionSelection__16TR_CodeGeneratorFv}
  [0x3208ecc0]
  0xd5b4075c
  {libj9jit24.so}{generateCodePhase1__16TR_CodeGeneratorFv}
  [0x3208ee70]
  0xd5b4430c {libj9jit24.so}{generateCode__16TR_CodeGeneratorFv}
  [0x3208ef30]
  0xd5b2a5fc {libj9jit24.so}{generateCode__14TR_CompilationFv}
  [0x3208ef90]
  0xd5b29bf4 {libj9jit24.so}{compile__14TR_CompilationFv}
  [0x3208efd0]
  0xd5b12a4c
  {libj9jit24.so}{compile__18TR_CompilationInfoFP10J9VMThreadP14TR
  _CompilationP10TR_OptionsP17TR_ResolvedMethodR11TR_FrontEndP19TR
  _OptimizationPlan} [0x3208f030]
  0xd5b118b4
  {libj9jit24.so}{wrappedCompile__18TR_CompilationInfoFP13J9PortLi
  braryPQ2_18TR_CompilationInfo17CompileParameters} [0x3208f2b0]
  0xd095aa98 {libj9prt24.so}{j9sig_protect} [0x3208f460]
  0xd5b0f7f0
  {libj9jit24.so}{compile__18TR_CompilationInfoFP10J9VMThreadP21TR
  _MethodToBeCompiledb} [0x3208f5f0]
  0xd5b0e7b4
  {libj9jit24.so}{protectedCompilationThreadProc__FP13J9PortLibrar
  yPv} [0x3208f810]
  0xd095aa98 {libj9prt24.so}{j9sig_protect} [0x3208f880]
  0xd5b0d2cc {libj9jit24.so}{compilationThreadProc__FPv}
  [0x3208fa10]
  0xd06a97cc {libj9thr24.so}{thread_wrapper} [0x3208fa70]
  0xd04edc50 {libpthreads.a}{_pthread_body} [0x3208fb00]
  

Local fix

• This issue can be avoided by specifying -Xjit:disableProfiling
  on the Java command line.
  

Problem summary

• The problem related to the use of profiling data for array
  operations.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR10
  1.5.0 SR13 FP1
  .
  The JIT has been modified to avoid this problem.
  .
  To obtain the fix:
  Install build 20110928 or later
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IV07500

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  JAVA 5 JIT

• Fixed component ID

  620500124

Applicable component levels

• R500 PSY