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IV70232: CRASH IN MLXENTDD DURING SEA FAILOVER APPLIES TO AIX 7100-02

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APAR status

  • Closed as program error.

Error description

  • A DSI will occur with following stack whenever the BACKUP
SEA configured over ROCE port is rebooted.

[04731644]mlxentdd:tmetrics_delta+000024
(00000000000F667E, 00000000000001B0 [??])
[04753FBC]mlxentdd:rdmacore_query_port+00075C (??, ??,
??)
[047742F0]mlxentdd:mlxent_hw_rdma_query_port+000010 (??,
??, ??)
[04F91800]ofed_core:ib_query_port+0000C0 (??, ??, ??)
[04F8FD54]ofed_core:read_port_table_lengths+000114 (??)
[04F930EC]ofed_core:ib_register_device+0002EC (??)
[004CE3D4]ofed_register_device+000054 (??)
[00014F50].kernel_add_gate_cstack+000030 ()
[046F3FD4]mlxentdd:rdmacore_callback_ofed+0000D4 (??)
[004CDFB0]ofed_call_notifiers+000030 ()
[004CDF24]ofed_register_verbs+000024 (??)
[00014F50].kernel_add_gate_cstack+000030 ()
[04F82E24]ofed_core:ofed_init+0001E4 ()
[04F80778]ofed_core:ofed_dd_config+000338 (??, ??, ??)
[005D77DC]config_dd+00029C (??, ??, ??)
[005D8600]sysconfig+000240 (??, ??, ??)

This typically will happen whenever SEA on VIOS is
transitioning to BACKUP mode.

Local fix

  • Customer reports that doing:

chdev -l entN -a adapter_reset=no

where entN is the SEA tends to prevent the DSI.

Problem summary

  • System crash when VIOS with BACKUP SEA configured over ROCE
port is rebooted AND rdma attribute set to "desired" or
"required".

Problem conclusion

  • Code changed to yield RDMA whenever SEA is configured over ROCE
port with rdma attribute set to "desired" or "required".

Temporary fix

  • 



Comments


    

  • 6100-08 - use AIX APAR IV69976
6100-09 - use AIX APAR IV56582
6100-09 - use AIX APAR IV56582
7100-02 - use AIX APAR IV70232
7100-03 - use AIX APAR IV69918

    



APAR Information




    

  • APAR number
    IV70232
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2015-02-28
    • 

  • Closed date
    2015-02-28
    • 

  • Last modified date
    2015-09-30
    • 





    

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

    
IV56582
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U866509
       UP15/09/21  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11R","label":"AIX 7.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            30 September 2015
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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