IJ31051: OCCASIONAL ASSERTION BEING TRIGGERED IN CODE GENERATION

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: Assertion failed at
  p/codegen/J9UnresolvedDataSnippet.cpp:259:
  comp->target().cpu.isTargetWithinIFormBranchRange(targetAddress,
  (intptr_t)cursor)
   VMState: 0x0005ff0a
   Return address is out of range
  .
  1 in 30 chance of hitting this issue for a particular test case
  (32bit JVM)
  

Local fix

• N/A
  

Problem summary

• Reworking on load/store framework introduced this bug. For
  unresolved long accesses, there is an unreferenced additional
  MemoryReference created. As a result, an orphaning snippet is
  created, and leads to this assertion.
  

Problem conclusion

• A complete fix was found.
  .
  This APAR will be fixed in the following Java Releases:
   8 SR6 FP26 (8.0.6.26)
  .
  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

• Backoff the reworking
  

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

  JIT

• Fixed component ID

  620700124

Applicable component levels