IV32411: INTERNAL SIGNAL ERROR FROM IPA

February 2013 PTF for XL Fortran for AIX, V13.1
May 2013 PTF for XL Fortran for AIX, V13.1

APAR status

• Closed as program error.

Error description

• When compiling at high optimization using IPA, the compiler is
  encountering an internal signal error.  When using the AIX
  compiler, the error outputs:
  
  
  Calling signal handler...
    Trap encountered in IPA:
    SIGSEGV - Segmentation violation
  
    Traceback:
  
    Offset 0x00000008 leftmost
    Offset 0x00000514 malloc_y
    Offset 0x00000014 malloc_common_79_63
  xlf: 1501-224 (S) fatal error in ipa64: signal 11 received
  
  
  When using the compiler in a Linux environment, the error
  outputs:
  
  
  *** glibc detected *** ipa: realloc():
     invalid next size: 0x00000000394532b0 ***
  
  Calling signal handler...
    Trap encountered in IPA:
    SIGABRT - Abort
  
  1586-494 (U) INTERNAL COMPILER ERROR: Signal 6.
  xlf: 1501-230 (S) Internal compiler error; please contact your
  Service Representative. For more information visit:
  http://www.ibm.com/support/docview.wss?uid=swg21110810
  

Local fix

• Do not use -qipa
  

Problem summary

• PROBLEM DESCRIPTION:
  Compiler internal error in IPA component of the compiler.
  
  USERS AFFECTED:
  Users of high levels of optimization, and -qipa
  

Problem conclusion

• The error was corrected, and the compiler no longer encounters
  the problem
  

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:

  LI77173 LI77240 IV37625

Fix information

• Fixed component name

  XL FORTRAN FOR

• Fixed component ID

  5724X1500

Applicable component levels

• RD10 PSY U857531

     UP C