PH39786: ADVANCED ACBGEN MISSED TO SEARCH AN ASSEMBLE INSTRUCTION BY MISRECOGNIZING MODULE ADDRESS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Advanced ACBGEN missed to search a specific assemble
  instructions when it found same strings in a module address. The
   utility should skip such module address.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: IMS Library Integrity Utilities for z/OS,    *
  *                 Version 2 Release 2 (FMID=H27P220) users     *
  *                 who use the Advanced ACBGEN utility.         *
  ****************************************************************
  * PROBLEM DESCRIPTION: The Advanced ACBGEN may cause           *
  *                      unexpected hook error and end with      *
  *                      ABEND U1014 when the following          *
  *                      conditions meet:                        *
  *                      - The utility looks for an assemble     *
  *                      instruction in DFSDLB30 module.         *
  *                      - An address of DFSDLB30 which is       *
  *                      expanded in the address space contains  *
  *                      the same hex code that the utility is   *
  *                      looking for.                            *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  This APAR fixes the Advanced ACBGEN not to cause unexpected
  ABEND U1014 hook error.
  The Advanced ACBGEN uses several IMS modules and one of the
  module is the Block Builder, DFSDLBL0. The Advanced ACBGEN
  reduces the ACBGEN elapsed time by hooking IMS modules,
  looking for specific assemble instructions, and modifying
  those instructions to use own instructions. The Advanced ACBGEN
  uses several hex codes to look for these instructions.
  
  In some environment, an address of DFSDLB30 which is defined in
  DFSDLBL0 contains same hex codes the Advanced ACBGEN looks for.
  It should be skipped but the Advanced ACBGEN missed to skip.
  As a result of this, ABEND U1014 hook error occurred.
  The Advanced ACBGEN will skip such address by this APAR.
  

Problem conclusion

• The following module has been changed to fix the problem:
   FABQHUK2
  

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:

  UI76908

Modules/Macros

• FABQHUK2
  

Fix information

• Fixed component name

  IMS LIBR INTEG

• Fixed component ID

  5655I4200

Applicable component levels

• R220 PSY UI76908

     UP21/08/27 P F108

Fix is available

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