IV01630: AN ASSERTION IS RECIEVED WHEN WORK PACKETS OVERFLOW OCCUR FOR GC POLICY 'BALANCED'

APAR status

• Closed as program error.

Error description

• Error Message: j9mm.107    *   ** ASSERTION FAILED ** at
  ParallelTask.cpp:71: ((_syncPointWorkUnitIndex ==
  env->getWorkUnitIndex()))
  .
  Stack Trace: N/A
  .
  

Local fix

• Work Packets Overflow Handler for "Balanced" might fail if Work
  Packets Overflow occur while GC is running in concurrent mode.
  Problem may be avoided by increasing of work packets number by
  specifying -Xgcworkpackets<N> where <N> is a number of work
  packets, will be rounded down to be multiple of 5 or using GC
  policy other then "balanced"
  

Problem summary

• Work Packets Overflow Handler does not work in "balanced" GC
  policy
  

Problem conclusion

• This defect will be fixed in:
  6.0.1 FP1
  .
  JVM has been uprated to prevent this problem in Work Packets
  Overflow Handler
  .
  To obtain the fix:
  Install build 20110308 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:

Fix information

• Fixed component name

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R260 PSY

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