IBM Support

PI73518: POTENTIAL UNDETECTED DATA CORRUPTION OR SEGMENTATION FAULTS FOR ESSL S/DCFTD, S/DRCFTD, S/DCRFTD USING 32-BIT INTEGER ARGUMENTS

 

APAR status

  • Closed as program error.

Error description

  • Error Description:
For some transform lengths, an application using the ESSL 32-bit
integer/64-bit pointer Serial, SMP or SMPCUDA Libraries and at
least one of these ESSL FFT subroutines DCFTD, DRCFTD, DCRFTD,
SCFTD, SCRFTD, and SRCFTD may experience undetected data
corruption or segmentation faults due to 32-bit integer
overflow.

USERS AFFECTED:
The application is not impacted if the FFT transform length S
can be represented as
              S = (2**i)(3**j)(5**k)(7**l)(11**m)(13**n)
               where S <= 2**30, and S, i, j, k, l, m, n satisfy
all of the following conditions:
           a) 0<=i<=30, 0<=j<=10, 0<=k, l, m, n<=5
           b) if i <9 and j<3: k+l+m+n<7
           c) if i<9 and j >=3: (j+1)/2 +k+l+m+n<7
           d) S is not equal to 665,127,936; 755,827,200;
786,060,288;  812,934,144; 846,526,464; 886,837,248;
967,458,816; 987,614,208; 993,586,176; 1,048,080,384

For all other transform lengths an application may be impacted.
Please contact IBM Support to confirm whether or not you are
impacted.

Local fix

  • 



Problem summary


    

  •  For some transform lengths, an application
using the ESSL 32-bit integer/64-bit pointer
Serial, SMP or SMPCUDA Libraries and at least
one of these ESSL FFT subroutines DCFTD,
DRCFTD, DCRFTD, SCFTD, SCRFTD, and SRCFTD may
experience undetected data corruption or
segmentation faults due to 32-bit integer
overflow

    



Problem conclusion


    

  •  Install the applicable fix as soon as it is
available.
PIxxxx - IBM ESSL 5.3.0.2 for AIX
PIxxxx - IBM ESSL 5.2.0.4 for AIX
PIxxxx - IBM ESSL 5.1.0.7 for AIX
PIxxxx - IBM ESSL for Linux on Power 5.4.0.1

PIxxxx - IBM ESSL for Linux on Power 5.3.2.1
PIxxxx - IBM ESSL for Linux on Power 5.2.0.4
PIxxxx - IBM ESSL for Linux on Power 5.1.1.3 BG/Q

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI73518
    • 

  • Reported component name
    ESSL LINUX V5.1
    • 

  • Reported component ID
    5765L51LP
    • 

  • Reported release
    540
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    YesHIPER
    • 

  • Submitted date
    2016-12-12
    • 

  • Closed date
    2016-12-12
    • 

  • Last modified date
    2016-12-13
    • 






Fix information


    

  • Fixed component name
    ESSL LINUX V5.1
    • 

  • Fixed component ID
    5765L51LP
    • 



Applicable component levels


    

  • R540  PSY  UP
       NONE
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            10 March 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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