IBM Support

IJ35688: SIGFPE SIGNAL CAUSES THE MMFSD PROCESS TO DIE

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APAR status

  • Closed as program error.

Error description

  • Copying an inode block which contains a bad
deleted inode could trigger SIGFPE signal,
then crash the mmfsd daemon.

Local fix

  • 



Problem summary


    

  • Copying an inode block which contains a bad
deleted inode could trigger SIGFPE signal,
then crash the mmfsd daemon.

    



Problem conclusion


    

  • This problem is fixed in 5.0.5  PTF 11
To see all Spectrum Scale APARs and
their respective fix solutions refer to page
https://public.dhe.ibm.com/storage/spectrumscale/spectrum_scale_
apars.html

Benefits of the solution:
Avoid mmfsd daemon crash by enhancing the
code to avoid operating on bad deleted inode.

Work around: No

Problem trigger:
This issue only happens on a bad deleted inode
when snapshot is being used.

Symptom: daemon crash

Platforms affected: All Operating Systems

Functional Area affected: Snapshot

Customer Impact: suggested

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ35688
    • 

  • Reported component name
    SPEC SCALE STD
    • 

  • Reported component ID
    5737F33AP
    • 

  • Reported release
    505
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2021-10-22
    • 

  • Closed date
    2021-10-22
    • 

  • Last modified date
    2021-10-22
    • 





    

  • 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":"505","Line of Business":{"code":"LOB26","label":"Storage"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            23 October 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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