OA46087: JVM INITIALIZATION ABEND0C1 SHARED MODULE HAS SAME INDEX AS NON-SHARED MODULE ABEND0CX VARIOUS POSSIBLE SYMPTOMS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Reporting customer observed that during createJvm process in
  Java batch, unhandled exception Type=Illegal instruction
  vmState=0xffffffff issued due to the 0C1 ABEND in J9VMDllMain.
  The problem did not occur again after cancelling the job or
  otherwise restarting the job.
  
  Verification Steps:
  For shared library modules there is an index created which is a
  sequential number.  The first module loaded would have 00000001,
  the second would have 000000002, and so on.  Modules loaded from
  non-shared libraries, the index is extracted from the TOD Clock
  value.  If the selected bytes of the TOD Clock happen to have a
  value like 00000001 or one of the other similar looking shared
  library module index values, this problem may occur.  To see if
  the APAR might apply to your case, examine the TOD Clock values
  over the SYSTRACE range to see the 3rd - 6th bytes of any have
  values like 00000xxx, in which bits 0 and 1 of the 3rd byte are
  ignored.
  
  For example, using the marked bytes below, the bits of the
  byte with CO would be ignored, so the remaining marked bytes
  of the systrace TOD Clock value would be 00000009.  This would
  be an indicator this APAR might apply to your case.
  
  CD76C00000096390
      ^^^^^^^^
  

Local fix

• Re-run the job
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users                                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Incorrect C_WSA for a program loaded    *
  *                      from a shared library                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The Loader may create an incorrect C_WSA (deferred segment)
  for a program object (module) from a shared library after
  confusing its Loader Token with the Loader Token for a
  program object from a non-shared library.
  

Problem conclusion

• IEWLCLDX will differentiate between shared and non-shared
  library loader tokens while finding the appropriate LFMD
  data area for use in resolving a deferred segment.
  

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:

  UA75017 UA75018 UA75019

Modules/Macros

• IEWLCLDX
  

Fix information

• Fixed component name

  LOADER

• Fixed component ID

  5752SCLDR

Applicable component levels

• R770 PSY UA75017

     UP14/10/15 P F410

• R780 PSY UA75018

     UP14/10/15 P F410

• R790 PSY UA75019

     UP14/10/15 P F410

Fix is available

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