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IZ28163: ON HP-UX ,ossGetDiskInfo function may fail with ECF_PARTIAL_INFO due to buffer overrun

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APAR status

  • Closed as program error.

Error description

  • ON HP-UX ,ossGetDiskInfo function may fail with
ECF_PARTIAL_INFO due to buffer overrun

Snippet of db2diag.log
***********************
2008-07-21-09.17.01.785694-240 I1837A651          LEVEL: Severe
PID     : 16529                TID  : 1           PROC :
db2agent (D02) 0
INSTANCE: db2d02               NODE : 000
APPHDL  : 0-8                  APPID: *LOCAL.db2d02.080721131701
AUTHID  : DB2D02
FUNCTION: DB2 UDB, buffer pool services, sqlbGetFileSystemInfo,
probe:15
MESSAGE :
ZRC=0x800201A5=-2147352155=SQLB_AS_INVALID_STORAGE_PATH
          "Storage path does not exist or is inaccessible."
DATA #1 : String, 30 bytes
Could not get file system info
DATA #2 : Pointer, 8 bytes
0xc00000001d710b40
DATA #3 : Pointer, 8 bytes
0x9fffffffffff0b00
DATA #4 : Bitmask, 4 bytes
0x00000180

2008-07-21-09.17.01.813628-240 I2489A529          LEVEL: Severe
PID     : 16529                TID  : 1           PROC :
db2agent (D02) 0
INSTANCE: db2d02               NODE : 000
APPHDL  : 0-8                  APPID: *LOCAL.db2d02.080721131701
AUTHID  : DB2D02
FUNCTION: DB2 UDB, buffer pool services,
sqlbCopyStoragePathsFromDiskCB, probe:20
MESSAGE :
ZRC=0x800201A5=-2147352155=SQLB_AS_INVALID_STORAGE_PATH
          "Storage path does not exist or is inaccessible."
DATA #1 : String, 29 bytes
Error copying paths from disk

Local fix

  • For allocation of path buffers , db2 uses HPUX macro SYS_NMLN .
By default , this macro has a value 9 , that means 8 characters
plus null.
So , the mount name and the path to the mount directory should
be less or equal 8 .
If you rename the directories to numbers, it might help. For
instance , the path /0/1/2/ uses 7 characters .

Problem summary

  • ON HP-UX ,ossGetDiskInfo function may fail with
ECF_PARTIAL_INFO due to buffer overrun

Problem conclusion

  • Problem was First Fixed in Version 8.2 Fixpak 18

Temporary fix

  • For allocation of path buffers , db2 uses HPUX macro SYS_NMLN .
By default , this macro has a value 9 , that means 8 characters
plus null.
So , the mount name and the path to the mount directory should
be less or equal 8 .
If you rename the directories to numbers, it might help. For
instance , the path /0/1/2/ uses 7 characters .

Comments

  • 



APAR Information




    

  • APAR number
    IZ28163
    • 

  • Reported component name
    DB2 UDB ESE HP-
    • 

  • Reported component ID
    5765F4103
    • 

  • Reported release
    820
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2008-07-24
    • 

  • Closed date
    2009-09-22
    • 

  • Last modified date
    2009-09-22
    • 





    

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

    
IZ28162
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    DB2 UDB ESE HP-
    • 

  • Fixed component ID
    5765F4103
    • 



Applicable component levels


    

  • R820  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            22 September 2009
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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