IJ20379: CRASH OR ASSERTION FAILURE HAPPENED AFTER DECOMPILATION WHEN FSD WAS ENABLED.

APAR status

• Closed as program error.

Error description

• Error Message: The snap traces show the following messages right
  before the crash or assertion failure:
  11:26:01.853181007  0x41A8700 j9codertvm(j9jit).19 Event
  decompile was requested
  11:26:01.853181007  0x41A8700 j9codertvm(j9jit).23 Exit
  <jitExceptionCaught
  11:26:01.853181453  0x41A8700 j9codertvm(j9jit).57 Entry
  >decompileMethodFrameIterator
  11:26:01.853181899  0x41A8700 j9codertvm(j9jit).58 Event
  outgoing arg count is 0
  11:26:01.853181899  0x41A8700 j9codertvm(j9jit).63 Exit
  <decompileMethodFrameIterator
  11:26:01.853181899  0x41A8700 j9codertvm(j9jit).57 Entry
  >decompileMethodFrameIterator
  11:26:01.853182345  0x41A8700 j9codertvm(j9jit).61 Exit
  <decompileMethodFrameIterator - finish: previous is JIT - copy
  preserved register values
  11:26:01.853182790  0x41A8700 j9codertvm(j9jit).33 Entry
  >jitInterpreterPCFromWalkState - Lookup interp PC for 0x5e5b445b
  11:26:01.853182790  0x41A8700 j9codertvm(j9jit).35 Exit
  <jitInterpreterPCFromWalkState - interp pc = 0x0 (ex handler)
  11:26:01.853182790  0x41A8700 j9codertvm(j9jit).71 Entry
  >performDecompile
  11:26:01.853190370  0x41A8700 j9codertvm(j9jit).75 Event
  building J2I frame at 0x4cb8340
  11:26:01.853190815  0x41A8700 j9codertvm(j9jit).76 Event
  fixing top of decomp stack (0x296e9790) from 0x4cb8408 to
  0x4cb83b8 (pc = 0x5ef5c032)
  11:26:01.853191261  0x41A8700 j9codertvm(j9jit).79 Exit
  <performDecompile - new SP = 0x4cb82b0
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• The problem was caused when the decompilation happened at an
  exception catch when FSD was enabled.
  

Problem conclusion

• The JVM has been updated to prevent the crash or assertion
  failure when the decompilation happens at exception catch.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR6 FP5   (8.0.6.5)
  .
  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

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

• R270 PSY

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