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IJ35140: AFM CACHE CLUSTER UNMOUNNTED DUE TO SIGNAL 8

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APAR status

  • Closed as program error.

Error description

  • Daemon crash due to race in resetting variable.

Traceback looks like the following:

2021-08-21_20:10:50.334+0800: [D] Traceback:
2021-08-21_20:10:50.334+0800: [D] #0: 0x0000563DC6D5ED85
pCacheMsgListItem_t::setInFlight() + 0x145 at ??:0
2021-08-21_20:10:50.336+0800: [D] #1: 0x0000563DC6DB0709
pCacheBaseMsgQueue::churnQueue(unsigned int) + 0x149 at
??:0
2021-08-21_20:10:50.336+0800: [D] #2: 0x0000563DC6DB0A06
pCacheHandler::churnQueue(unsigned int) + 0x166 at ??:0
2021-08-21_20:10:50.338+0800: [D] #3: 0x0000563DC6DB0DFF
pCacheHandler::msgThreadBody() + 0x36F at ??:0
2021-08-21_20:10:50.338+0800: [D] #4: 0x0000563DC6DB0FAE
pCacheMsgThreadEntry(void*) + 0xE at ??:0
2021-08-21_20:10:50.339+0800: [D] #5: 0x0000563DC5C5AAD8
Thread::callBody(Thread*) + 0x118 at ??:0
2021-08-21_20:10:50.339+0800: [D] #6: 0x0000563DC5C48800
Thread::callBodyWrapper(Thread*) + 0xC0 at ??:

Local fix

  • 



Problem summary


    

  • Daemon crash due to race in resetting numExecuted variable while
getting AFM statistics from mmdiag command.

    



Problem conclusion


    

  • Avoid mmfsd restart due to daemon crash.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ35140
    • 

  • Reported component name
    SPEC SCALE STD
    • 

  • Reported component ID
    5737F33AP
    • 

  • Reported release
    511
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2021-09-23
    • 

  • Closed date
    2021-10-14
    • 

  • Last modified date
    2021-10-14
    • 





    

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

    • 

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

    • 



Fix information


    

  • Fixed component name
    SPEC SCALE STD
    • 

  • Fixed component ID
    5737F33AP
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"STXKQY"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"511","Line of Business":{"code":"LOB26","label":"Storage"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            18 October 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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