IZ96975: ISSUE WITH COMPRESSED REFERENCES ON Z196 V1.12+

APAR status

• Closed as program error.

Error description

• Error Message: $ java -version -Xcompressedrefs
  
  JVMJ9VM015W Initialization error for library j9gc24(2): Failed
  to
  instantiate heap; 1M requested
  Could not create the Java virtual machine.
  .
  Stack Trace: N/A
  .
  When attempting to run with -Xcompressedrefs on certain levels
  of zOS 1.12 and above on z196 (zEnterprise) systems the VM fails
  to initialize.
  Removing -Xcompressedrefs shows the VM initializes correctly
  

Local fix

• Disable -Xcompressedrefs on the Java command line options
  

Problem summary

• The problem is caused due to an error variable within the JVM
  not being initialized correctly when running on z196.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9 FP2
  6.0.1 GA FP1
  .
  The variable which captures the memory allocation error code is
  now being initialized correctly before it is used.
  .
  To obtain the fix:
  Install build 20110322 or later
  

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:

  PM45029

Fix information

• Fixed component name

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R600 PSN

     UP

• R260