IJ14172: JAVA FAILS WITH SIGSEGV WHEN -XJIT:DISABLEZ10 OPTION IS SUPPLIED

APAR status

• Closed as program error.

Error description

• Error Message: A SIGSEGV/GPF is received when a user runs Java
  with the -Xjit:disableZ10 option. It can happen more often if a
  low count number is supplied in the JIT option. i.e.
  -Xjit:disableZ10,count=0.
  .
  Stack Trace: N/A
  .
  N/A
  

Local fix

• N/A
  

Problem summary

• When a Java class is unresolved, the JIT will need to call VM to
  resolve it and load the unresolved class pointer. The
  -Xjit:disableZ10 crash happens because of an incorrect address
  being used in the z10 class pointer loading sequence.
  

Problem conclusion

• The JIT has been updated for z10 and below to load newly
  resolved Java class pointers from correct addresses.
  .
  This APAR will be fixed in the following Java Releases:
   8 SR5 FP26 (8.0.5.26)
  .
  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

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

• Fixed component name

  JIT

• Fixed component ID

  620700124

Applicable component levels