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IV61759: VIOS USING NPIV CAN CRASH SYSTEM APPLIES TO AIX 6100-09

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APAR status

  • Closed as program error.

Error description

  • ***************************************************************
* USERS AFFECTED:
* Systems running the 6100-09 Technology Level with
* devices.pciex.df1060e214103404.com below the
* 6.1.9.30 level.
***************************************************************
* PROBLEM DESCRIPTION:
* In a VIOS environment where you have client LPARs using
NPIV,
* Emulex FC/FCoe HBA/CNA 10Gb or higher Fibre Channel adapter,
* and there are SAN/fabric issues for the NPIV-enabled paths,
* the VIOS may crash if commands needed for error recovery or
* the fabric login sequence times out.
*
* This has typically been seen when an NPIV client is doing
* fabric operations such as fabric discovery, relogin after a
* path failure, or dynamic tracking operations.
*
* During these operations some fields in the fscsi driver
* structures may be erroneously cleared.  Later, when the
* driver attempts to access these fields, it can result in a
* system crash, hang, or other unexpected failure.
***************************************************************
* RECOMMENDATION:
* Install APAR IV61759.
***************************************************************

Local fix

  • 



Problem summary


    

  • ***************************************************************
* USERS AFFECTED:
* Systems running the 6100-09 Technology Level with
* devices.pciex.df1060e214103404.com below the
* 6.1.9.30 level.
***************************************************************
* PROBLEM DESCRIPTION:
* In a VIOS environment where you have client LPARs using
NPIV,
* Emulex FC/FCoe HBA/CNA 10Gb or higher Fibre Channel adapter,
* and there are SAN/fabric issues for the NPIV-enabled paths,
* the VIOS may crash if commands needed for error recovery or
* the fabric login sequence times out.
*
* This has typically been seen when an NPIV client is doing
* fabric operations such as fabric discovery, relogin after a
* path failure, or dynamic tracking operations.
*
* During these operations some fields in the fscsi driver
* structures may be erroneously cleared.  Later, when the
* driver attempts to access these fields, it can result in a
* system crash, hang, or other unexpected failure.
***************************************************************
* RECOMMENDATION:
* Install APAR IV61759.
***************************************************************

    



Problem conclusion


    

  • Re-arranged the code to avoid the crash.

    



Temporary fix


    

  • *********
* HIPER *
*********

    



Comments


    

  • 6100-08 - use AIX APAR IV64465
6100-09 - use AIX APAR IV61759
6100-09 - use AIX APAR IV61759
7100-02 - use AIX APAR IV64283
7100-03 - use AIX APAR IV61764
7100-04 - use AIX APAR IV61771

    



APAR Information




    

  • APAR number
    IV61759
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    YesHIPER
    • 

  • Submitted date
    2014-06-20
    • 

  • Closed date
    2014-06-20
    • 

  • Last modified date
    2016-05-11
    • 






Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U861318
       UP14/10/28  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            11 May 2016
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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