IV38930: SEGMENTATION ERROR

APAR status

• Closed as program error.

Error description

• Error Message: Seg fault from JIT compilation thread.
  .
  Stack Trace: monitor_enter_three_tier+0x28e (j9thread.c:3323,
  0x7ED7361E <OSB>J9THR26+0x361e<CSB>)
  jvmtiHookCheckForDataBreakpoint+0x9d (jvmtihook.c:2592,
  0x7EE31FDD <OSB>j9jvmti26+0x11fdd<CSB>)
  J9HookDispatch+0x88 (hookable.c:176, 0x7F3B10B8
  <OSB>J9HOOKABLE26+0x10b8<CSB>)
  jitCTResolveInstanceFieldRef+0x91 (ctsupport.c:332, 0x7F255F31
  <OSB>j9jit26+0x365f31<CSB>)
  TR_ResolvedJ9Method::fieldAttributes+0x78 (j9method.cpp:6318,
  0x7EF16E68 <OSB>j9jit26+0x26e68<CSB>)
  TR_SymbolReferenceTable::findOrCreateShadowSymbol+0x60
  (symreftab.cpp:2195, 0x7EF9E570 <OSB>j9jit26+0xae570<CSB>)
  TR_ByteCodeIlGenerator::loadInstance+0x1c (walker.cpp:6342,
  0x7F241ECC <OSB>j9jit26+0x351ecc<CSB>)
  TR_ByteCodeIlGenerator::walker+0x20bb (walker.cpp:462,
  0x7F24B7EB <OSB>j9jit26+0x35b7eb<CSB>)
  TR_ByteCodeIlGenerator::genILFromByteCodes+0x21f
  (ilgenerator.cpp:542, 0x7F23C53F <OSB>j9jit26+0x34c53f<CSB>)
  TR_ByteCodeIlGenerator::genIL+0x1f (ilgenerator.cpp:104,
  0x7F23D3FF <OSB>j9jit26+0x34d3ff<CSB>)
  TR_ResolvedMethodSymbol::genIL+0x1ab (symbol.cpp:779, 0x7EF9119B
  <OSB>j9jit26+0xa119b<CSB>)
  TR_Compilation::compile+0x8fa (compilation.cpp:1337, 0x7EF5BBCA
  <OSB>j9jit26+0x6bbca<CSB>)
  TR_CompilationInfoPerThreadBase::compile+0x4ce
  (compilationthread.cpp:6695, 0x7EEFA72E
  <OSB>j9jit26+0xa72e<CSB>)
  TR_CompilationInfoPerThreadBase::wrappedCompile+0xadb
  (compilationthread.cpp:6441, 0x7EEFE8CB
  <OSB>j9jit26+0xe8cb<CSB>)
  j9sig_protect+0x44 (j9signal.c:150, 0x7EDFF0E4
  <OSB>J9PRT26+0xf0e4<CSB>)
  TR_CompilationInfoPerThreadBase::compile+0x588
  (compilationthread.cpp:5733, 0x7EEFF128
  <OSB>j9jit26+0xf128<CSB>)
  protectedCompilationThreadProc+0x44e
  (compilationthread.cpp:3058, 0x7EEFFA9E
  <OSB>j9jit26+0xfa9e<CSB>)
  j9sig_protect+0x44 (j9signal.c:150, 0x7EDFF0E4
  <OSB>J9PRT26+0xf0e4<CSB>)
  compilationThreadProc+0x230 (compilationthread.cpp:2695,
  0x7EF00380 <OSB>j9jit26+0x10380<CSB>)
  thread_wrapper+0xda (j9thread.c:1153, 0x7ED7464A
  <OSB>J9THR26+0x464a<CSB>)
  _endthread+0x48 (0x78AFC55C <OSB>msvcr100+0x5c55c<CSB>)
  _endthread+0xe8 (0x78AFC5FC <OSB>msvcr100+0x5c5fc<CSB>)
  GetModuleFileNameA+0x1ba (0x7C80B729 <OSB>kernel32+0xb729<CSB>)
  .
  

Local fix

• N/A
  

Problem summary

• The crash originated from accessing an already destroyed mutex
  within an already disposed jvmti environment.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR5
  6.0.1 SR6
  6.0.0 SR14
  .
  All jvmti environment iterators should skip processing of any
  jvmti environment that has been marked as disposed.
  

Temporary fix

Comments

APAR Information

• 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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R260 PSY

     UP

• R600 PSY

     UP