IV19456: FAILURE TO GENERATE TDUMP ON Z/OS

APAR status

• Closed as program error.

Error description

• Error Message: JVMDUMP012E Error in System dump:
  NETVIEW.JVM.AXXON1.D110702.T230316.X&DS
  .
  Stack Trace: N/A
  .
  

Local fix

• Ensure that the user id being used by the Java process has
  privileges to write to the datasets control by other user ids
  mapped to the same UID.  This may not be possible due to
  security concerns.
  

Problem summary

• When there are multiple user ids on a zOS system that share the
  same UID, the JVM may choose the wrong user id when constructing
  a dataset name for a TDUMP.
  The user id of the Java process attempt to write the TDUMP may
  not have permission to write to the dataset of incorrectly
  chosen user id.  This results in failing to write the TDUMP to a
  dataset.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR1
  6.0.1 SR1
  6.0.0 SR10
  .
  The JVM has been updated to construct the name of the TDUMP such
  that it is written to a dataset that is writable.
  

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