IV99754: VM CRASHES WHEN PRINTING TRACE POINTS

APAR status

• Closed as program error.

Error description

• Error Message: Unhandled exception
  Type=Segmentation error vmState=0x00070000
  .
  Stack Trace: doTracePoint+0x4f (trclog.c:2148,
  0x00007FF94475F1CF <OSB>j9trc29+0xf1cf<CSB>)
  javaTrace+0x58 (trcengine.c:1296, 0x00007FF944757FE8
  <OSB>j9trc29+0x7fe8<CSB>)
  freeVerifyBuffers+0x39 (bcverify.c:2223, 0x00007FF9448734A9
  <OSB>j9vm29+0x834a9<CSB>)
  j9rtv_verifierGetRAMClass+0x215 (rtverify.c:115,
  0x00007FF944876D85 <OSB>j9vm29+0x86d85<CSB>)
  isRAMClassCompatible+0x72 (vrfyhelp.c:583, 0x00007FF94486EEB2
  <OSB>j9vm29+0x7eeb2<CSB>)
  isClassCompatible+0x1f2 (vrfyhelp.c:550, 0x00007FF94486FAF2
  <OSB>j9vm29+0x7faf2<CSB>)
  j9rtv_verifyArguments+0x2ea (rtverify.c:2553, 0x00007FF944877E5A
  <OSB>j9vm29+0x87e5a<CSB>)
  verifyBytecodes+0x1540 (rtverify.c:1524, 0x00007FF944879890
  <OSB>j9vm29+0x89890<CSB>)
  j9rtv_verifyBytecodes+0x9b (rtverify.c:156, 0x00007FF94487B36B
  <OSB>j9vm29+0x8b36b<CSB>)
  j9bcv_verifyBytecodes+0x5df (bcverify.c:2545, 0x00007FF9448750DF
  <OSB>j9vm29+0x850df<CSB>)
  performVerification+0x166 (classinitialization.cpp:138,
  0x00007FF9447F16C6 <OSB>j9vm29+0x16c6<CSB>)
  classInitStateMachine+0x9a7 (classinitialization.cpp:371,
  0x00007FF9447F2747 <OSB>j9vm29+0x2747<CSB>)
  resolveClassRef+0x3ca (resolvesupport.cpp:307,
  0x00007FF944845FEA <OSB>j9vm29+0x55fea<CSB>)
  _ZN22VM_BytecodeInterpreter3runEP10J9VMThread+0xe56f
  .
  

Local fix

Problem summary

• This problem is caused by incorrectly passing a null pointer to
  the trace engine.
  

Problem conclusion

• The problem is fixed by correctly passing a valid pointer to the
  trace engine.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR5       (8.0.5.0)
  .
  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 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

• R270 PSY

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