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IZ74402: SYSTEM CRASH IN THE ISCSISW DEVICE DRIVER APPLIES TO AIX 5300-10

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APAR status

  • Closed as program error.

Error description

  • System crash with a stack trace similar to:

(1)> f
pvthread+001200 STACK:
[00065A5C]tstart+000080 (0000000000000000 [??])
[04171F20]handleRtt+0001EC (??, ??)
[04173A94]iscsisw_recv_handler+000804 (??, ??, ??)
[001D7EF0]sowakeup+000328 (??, ??)
[04326A4C]tcp_input0+006FB0 (??, ??, ??, ??)
[043278E4]tcp_input+000098 (F1000600145C0C00,
0000001400000014)
[042EC26C]ipintr_noqueue_post_fw+000DBC ()
[042EC634]ipintr_noqueue+000110 (??, ??, ??)
[042EDAFC]in_newstack+000020 ()
[042E82D0]in_flip_and_run+0000C0 (??, ??, ??)
[042E74C8]dogisr+0000C8 ()
[03FEC3E8]eth_std_receive+0001A4 (??, ??, ??)
[03FEAB70]eth_receive+000248 (??, ??)
[04017F14]rx_handler+000990 (??, ??, ??)
[0401EB74]hea_eq_intr+000298 (??)
[000F22E0]i_poll_soft+000184 (??)

Local fix

  • 



Problem summary


    

  • System may crash with following stack
pvthread+001200 STACK:
tstart+000080 ()
handleRtt+0001EC ()
iscsisw_recv_handler+000804 ()
sowakeup+000328 ()
tcp_input0+006FB0 ()
tcp_input+000098 ()
ipintr_noqueue_post_fw+000DBC ()
ipintr_noqueue+000110 ()
in_newstack+000020 ()
in_flip_and_run+0000C0 ()
dogisr+0000C8 ()
eth_std_receive+0001A4 ()
eth_receive+000248 ()
rx_handler+000990 ()
hea_eq_intr+000298 ()
i_poll_soft+000184 ()

    



Problem conclusion


    

  • Makesure the trb stopped before starting the timer.

    



Temporary fix


    

  • 



Comments


    

  • 5300-09 - use AIX APAR IZ74403
5300-10 - use AIX APAR IZ74402
5300-11 - use AIX APAR IZ69002
5300-12 - use AIX APAR IZ73983
6100-05 - use AIX APAR IZ73988

    



APAR Information




    

  • APAR number
    IZ74402
    • 

  • Reported component name
    AIX  5.3
    • 

  • Reported component ID
    5765G0300
    • 

  • Reported release
    530
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2010-04-10
    • 

  • Closed date
    2010-04-10
    • 

  • Last modified date
    2013-03-28
    • 





    

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

    
IZ69002
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX  5.3
    • 

  • Fixed component ID
    5765G0300
    • 



Applicable component levels


    

  • R530  PSY  U832888
       UP10/05/18  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            28 March 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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