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IC86006: DB2 REPORTS NUMBER OF PROCESSOR CORES WITH INTEL HYPERTHREADING INCORRECTLY (CONTINUATION OF IC81317 )

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • This APAR includes the complete fix for IC81317.
    DB2 on a HP server with two Intel(R) Xeon(R) CPU E5-2665 with 8
    cores each, in sum 16 cores.
    Hyperthreading is activated so DB2 sees 32 cores on a Windows
    OS.
    
    The db2diag.log of the server described above shows following
    values:
    
    
    CPU: total:32 online:32 Cores per socket:1 Threading degree per
    core:2
    
    
    The correct output should be:
    
    
    
    CPU: total: 2 online: 2 Cores per socket:8 Threading degree per
    core:2
    
    - db2diag.log :
    
    Instance "DB2" uses "64" bits and DB2 code release "SQL09076"
    with level identifier "08070107".
    Informational tokens are "DB2 v9.7.600.413", "s120516",
    "IP23323", Fix Pack "6".
    DATA #2 : System Info, 1568 bytes System: WIN32_NT AT010000SA134
    Service Pack 1 6.1 AMD64 Family 6, model 45, stepping 7
    CPU: total:32 online:32 Cores per socket:1 Threading degree per
    core:2
    
    
    - db2pd -osinfo :
    
    Operating System Information:
    
    OSName:   WIN32_NT
    NodeName: AT010000SA134
    Version:  6.1
    Release:  Service Pack 1
    Machine:  AMD64 Family 6, model 45, stepping 7
    
    CPU Information:
    TotalCPU    OnlineCPU   ConfigCPU   Speed(MHz)  HMTDegree
    Cores/Socket
    32              32          32          2394        2
    1
    
    Physical Memory and Swap (Megabytes):
    TotalMem    FreeMem     AvailMem    TotalSwap   FreeSwap
    32734       29060       29060       33032       33007
    
    Virtual Memory (Megabytes):
    Total       Reserved    Available   Free
    65766       n/a         n/a         62064
    
    CPU Usage Information (percent):
    Total     Usr       Sys       Wait      Idle
    0.005769  0.000000  0.000000  0.000000  99.994231
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Windows                                                      *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 UDB Version 9.7 FixPack 8                     *
    ****************************************************************
    

Problem conclusion

  • Problem was first fixed in DB2 UDB Version 9.7 FixPack 8
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC86006

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-08-21

  • Closed date

    2013-04-01

  • Last modified date

    2014-08-18

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

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

    IC91758

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSY

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC86006

Modified date: 18 August 2014