IBM Support

IV86632: CIFS CRASH DUE TO CORRUPT SMB_RQ CHAIN APPLIES TO AIX 7100-04

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The CIFS driver may crash due to a
corrupt smb_rq chain.  The stack trace
will most likely look like this:

nsmbdd:smb_iod_sendrq+0000D8
nsmbdd:smb_iod_sendall@AF29_12+0002C4
nsmbdd:smb_iod_waitrq+0002C8
nsmbdd:smb_rq_reply+000020
nsmbdd:smb_rq_simple+00005C
nsmbdd:smb_smb_negotiate+000158
nsmbdd:smb_iod_connect+0001F8
nsmbdd:smb_iod_treeconnect+0000F0
nsmbdd:smb_iod_addrq+0002EC
nsmbdd:smb_rq_enqueue+00010C
nsmbdd:smb_rq_simple+00004C
nsmbdd:smb_smb_treeconnect+0001F0
nsmbdd:smb_iod_treeconnect+000238
nsmbdd:smb_iod_thread+000324

Local fix

  • 



Problem summary


    

  • The CIFS driver may crash due to a
corrupt smb_rq chain. The stack trace
will most likely look like this:

nsmbdd:smb_iod_sendrq+0000D8
nsmbdd:smb_iod_sendall@AF29_12+0002C4
nsmbdd:smb_iod_waitrq+0002C8
nsmbdd:smb_rq_reply+000020
nsmbdd:smb_rq_simple+00005C
nsmbdd:smb_smb_negotiate+000158
nsmbdd:smb_iod_connect+0001F8
nsmbdd:smb_iod_treeconnect+0000F0
nsmbdd:smb_iod_addrq+0002EC
nsmbdd:smb_rq_enqueue+00010C
nsmbdd:smb_rq_simple+00004C
nsmbdd:smb_smb_treeconnect+0001F0
nsmbdd:smb_iod_treeconnect+000238
nsmbdd:smb_iod_thread+000324

    



Problem conclusion


    

  • Fill up error field everytime instead of relying on previous
values.

    



Temporary fix


    

  • 



Comments


    

  • 6100-09 - use AIX APAR IV86763
6100-09 - use AIX APAR IV86763
7100-04 - use AIX APAR IV86632
7100-04 - use AIX APAR IV86632
7200-01 - use AIX APAR IV87975

    



APAR Information




    

  • APAR number
    IV86632
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2016-07-07
    • 

  • Closed date
    2016-08-15
    • 

  • Last modified date
    2017-01-20
    • 





    

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

    
IV85592
    

    • 

  • 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  U869833
       UP16/10/25  I  1000
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11R"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            19 April 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback