IJ14057: CRASH DURING JIT COMPILATION

APAR status

• Closed as program error.

Error description

• Error Message: JVM crashes in libj9jit27.so with the output
  indicating that a method is being compiled. Analysis of the
  corefile will likely indicate that the crash occurred in
  getMethodDebugInfoFromROMMethod
  In some cases the JVM may also emit an assert message:
  ** ASSERTION FAILED ** j9vmutil.15 at romhelp.c:54
  Assert_VMUtil_true((((void *)0) != romMethod))
  This problem does not exist in Java 8 onwards.
  .
  Stack Trace: N/A
  .
  

Local fix

• The Java method that triggers the failure in the JIT can be
  excluded from compilation using a command line of the form:
  -Xjit:exclude={package/class.method(*},dontInline={package/class
  .method(*}
  where package/class.method(* is replaced with the information
  from the crash output, e.g. if the crash output contains
  Method_being_compiled=com/ibm/io/async/AbstractAsyncFuture.compl
  eted(Ljava/lang/Exception;)V
  then the following Xjit option could be used:
  -Xjit:exclude={com/ibm/io/async/AbstractAsyncFuture.completed(*}
  ,dontInline={com/ibm/io/async/AbstractAsyncFuture.completed(*}
  

Problem summary

• The failing part of the JIT compiler should not have been
  running at this point, and so under rare circumstances could be
  presented with data that it was not designed to cope with.
  

Problem conclusion

• The JVM has been updated to avoid incorrectly calling the
  failing code.
  .
  This APAR will be fixed in the following Java Releases:
     7 R1 SR4 FP45  (7.1.4.45)
  .
  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

  JIT

• Fixed component ID

  620700124

Applicable component levels