IBM Support

DY47452: LOST BUFFERS ON DFR PROCESSING MEMORY LEAK IN IKQCAD

A fix is available

Obtain the fix for this APAR.

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • 1. Missing records when updating KSDS dataset with DFR+LSR
options.
2. Gradually eaten-up 31bit Getvioptions.running CICS
transactions actively processing VSAM KSDS datasets.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED: All users                                    *
****************************************************************
* PROBLEM DESCRIPTION: 1. Missing records when updating        *
*                      KSDS dataset with DFR+LSR options.      *
*                      2. Gradually eaten-up 31bit Getvis      *
*                      while running CICS transactions         *
*                      actively processing VSAM KSDS files.    *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
1. When aceesing KSDS dataset with LSR+DFR options,
some buffers might be lost because of the error in IKQBFB.
2. Memory leak in the IJBVSM subpool on CA split
when >16 LSR strings active.

    



Problem conclusion


    

  • 1. Problem cause discovered in IKQBFB code.
Wrong BCB field was checked for comparison.
2. Memory leak was caused by IKQCAD code.
Invalid Freevis length parameter was specified.

    



Temporary fix


    

  • *********
* HIPER *
*********

    



Comments


    

  • 



APAR Information




    

  • APAR number
    DY47452
    • 

  • Reported component name
    VSE/VSAM
    • 

  • Reported component ID
    5686CF905
    • 

  • Reported release
    51C
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    YesHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2013-01-25
    • 

  • Closed date
    2013-01-30
    • 

  • Last modified date
    2013-04-23
    • 





    

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

    • 

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

    • 



Modules/Macros


    

  • IKQBFB   IKQCAD

    



Fix information


    

  • Fixed component name
    VSE/VSAM
    • 

  • Fixed component ID
    5686CF905
    • 



Applicable component levels


    

  • R51C  PSN  UD53927
       UP13/02/07  P  E512  Ž
    • 



Fix is available


    

  • Select the PTF appropriate for your component level.
You will be required to sign in. Distribution on physical
media is not available in all countries.
    








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG32M","label":"APARs - VSE\/ESA environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"51C","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            11 December 2020
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback