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IZ63898: QP/CQ CLOSE DURING MEMORY MIGRATION CAN CAUSE CRASH APPLIES TO AIX 6100-05

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APAR status

  • Closed as program error.

Error description

  • CRASH INFORMATION:
5
CPU 18 CSA 01BCD200 at time of crash, error code for
LEDs: 30000000
pvthread+001100 STACK:
[0423CFE8]gxib_rpn_query+000194 (0000000000000000,
0000000000000400
[??])
[0423D550]gxib_mem_migrate+00008C (??, ??, ??)
[0018AB24]dr_dma_rpn_query+0000F4 (??, ??, ??, ??)
[0018C1A4]v_drdma_mig_pre+0000B4 (??, ??, ??, ??, ??)
[0018EA28]v_migrate_page_dr+0005BC (??, ??, ??, ??, ??,
??, ??)
[0018FAF8]v_migrate_dr+000330 (??, ??)

If a memory migration occurs as an IB link is shutting
the above crash may result.

Local fix

  • N/A

Problem summary

  • System crash in IB Galaxy driver with the following stack:
(18)> f
pvthread+001100 STACK:
 0423CFE8 gxib_rpn_query+000194 (0000000000000000,...)
 0423D550 gxib_mem_migrate+00008C (??, ??, ??)
 0018AB24 dr_dma_rpn_query+0000F4 (??, ??, ??, ??)
 0018C1A4 v_drdma_mig_pre+0000B4 (??, ??, ??, ??, ??)
 0018EA28 v_migrate_page_dr+0005BC (??, ??, ??, ??, ??, ??, ??)
 0018FAF8 v_migrate_dr+000330 (??, ??)
 002EDBF4 .backt+000088 ()

Problem conclusion

  • Ensure channel array is protected during memory migration

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IZ63898
    • 

  • Reported component name
    AIX 610
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2009-10-27
    • 

  • Closed date
    2009-10-27
    • 

  • Last modified date
    2013-03-28
    • 





    

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

    
IZ59139
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX 610
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U827172
       UP10/04/16  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            28 March 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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