IV72655: CRASH WHILE STEPPING THROUGH JAVA APPLICATIONS USING JSR292 FEAT URES

APAR status

• Closed as program error.

Error description

• Error Message: SIGSEGV/GPF is received when a user is debugging
  a Java application and attempts to step across or through an
  invokedynamic bytecode.
  .
  Stack Trace: crash originating in JIT module
  .
  The failure may be highly intermittent as failure requires the
  method being debugged to have been compiled by the JIT and for
  execution to transition back to the interpreter during or
  immediately following the execution of an invokedynamic
  bytecode.
  

Local fix

• The problem can be worked around by using the -Xjit:exclude={}
  and dontInline={} options to fully exclude any methods
  containing the invokedynamic bytecode from being compiled by the
  JIT. The use of these options is likely to have a negative
  impact on application performance.
  

Problem summary

• The code generated by the JIT compiler fails to marshal the
  correct operand stack values to the interpreter when
  decompilation occurs during or immediately following the
  execution of an invokedynamic bytecode.
  

Problem conclusion

• The JIT has been modified to ensure the correct operand stack
  values are passed to the interpreter upon decompilation so that
  execution proceeds normally.
  .
  This APAR will be fixed in the following Java Releases:
     7 R1 SR3       (7.1.3.0)
     7    SR9       (7.0.9.0)
  .
  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

• R130 PSY

     UP

• R260 PSY

     UP