IC89252: SORT SHARED MEMORY COUNTER UNDERFLOW MAY CAUSE SEVERE MESSAGE IN THE DB2DIAG.LOG

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • You may see following severe message in the db2diag.log :
    
    2012-08-22-14.11.47.121000+120 I6229343F540       LEVEL: Severe
    PID     : 10364                TID  : 11768       PROC :
    db2syscs.exe
    INSTANCE: DB2                  NODE : 000         DB   : DBNAME
    APPHDL  : 0-31650              APPID:
    10.11.110.210.4934.120822120652
    AUTHID  : DB2INST1
    EDUID   : 11768                EDUNAME: db2agntp 0
    FUNCTION: DB2 UDB, Self tuning memory manager,
    stmmReleaseUnthrottledSharedSortSpace, probe:2615
    MESSAGE : Trying to release more pages than were held -  2 -
    786556 -
             4294705272 -
    
    Message is related to some other warnings of type:
    
    2012-08-22-15.25.17.207000+120 I6242572F1073      LEVEL: Warning
    PID     : 10364                TID  : 2224        PROC :
    db2syscs.exe
    INSTANCE: DB2                  NODE : 000         DB   : DBNAME
    APPHDL  : 0-32116              APPID:
    10.11.110.210.1724.120822131417
    AUTHID  : DB2INST1
    EDUID   : 2224                 EDUNAME: db2agent (DBNAME) 0
    FUNCTION: DB2 UDB, sort/list services,
    sqlsReleaseSharedSortSpace, probe:10
    DATA #1 : String, 46 bytes
    Sort shared memory counter underflow detected
    DATA #2 : unsigned integer, 4 bytes
    260642
    DATA #3 : unsigned integer, 4 bytes
    260640
    CALLSTCK:
      [0] 0x000000018010B885 pdLog + 0x353
      [1] 0x0000000003A349D6 sqlsfshp + 0x9FE
      [2] 0x0000000003A2C753 sqlsopen + 0xC57
      [3] 0x00000000034FDF35 sqlrsopen + 0xCD
      [4] 0x000000000361AFDE sqlrisrt + 0x2D0
      [5] 0x00000000034D6BFF sqlriSectInvoke + 0x139
      [6] 0x0000000003219314 sqlrr_process_fetch_request + 0x1A8
      [7] 0x0000000003214D47 sqlrr_open + 0x531
      [8] 0x00000000023D92EB sqljs_ddm_opnqry + 0x447
      [9] 0x00000000023B8021 sqljsParse + 0x2B85
    
    
    and:
    
    2012-08-23-23.44.03.058000+120 I6566317F1115      LEVEL: Warning
    PID     : 10364                TID  : 6988        PROC :
    db2syscs.exe
    INSTANCE: DB2                  NODE : 000         DB   : DBNAME
    APPHDL  : 0-6810               APPID: *LOCAL.DB2.120823213457
    AUTHID  : DB2INST1
    EDUID   : 6988                 EDUNAME: db2agntp (DBNAME) 0
    FUNCTION: DB2 UDB, sort/list services,
    sqlsReleaseSharedSortSpace, probe:10
    DATA #1 : String, 46 bytes
    Sort shared memory counter underflow detected
    DATA #2 : unsigned integer, 4 bytes
    94440
    DATA #3 : unsigned integer, 4 bytes
    91830
    CALLSTCK:
      [0] 0x000000018010B885 pdLog + 0x353
      [1] 0x0000000003A2F8A2 sqlsReleaseSharedSortSpace + 0x1E4
      [2] 0x0000000003516F09 sqlriReleaseSortSpace + 0x1D
      [3] 0x000000000350935A sqlri_hsjnClose + 0xCA0
      [4] 0x000000000362DB31 sqlrihsjn + 0x329
      [5] 0x00000000034D6BFF sqlriSectInvoke + 0x139
      [6] 0x00000000032DFFF4 sqlrr_smp_router + 0x184
      [7] 0x00000000032E2C8B sqlrr_subagent_router + 0xE6F
      [8] 0x000000000220A77E sqleSubRequestRouter + 0xA32
      [9] 0x000000000220962A sqleProcessSubRequest + 0x200
    
    
    Warnings are recorded with different stacks (and stack might be
    different than the ones above).
    Severe message is informational (no other symptoms of problem
    except mentioned severe message).
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * ALL                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 version 9.7 fixpack 8                         *
    ****************************************************************
    

Problem conclusion

  • Problem was first fixed in DB2 version 9.7 fixpack 8
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC89252

  • 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

    2012-12-24

  • Closed date

    2013-04-09

  • Last modified date

    2013-04-09

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

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

    IC91744

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSN

       UP



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Document information


More support for:

DB2 for Linux, UNIX and Windows

Software version:

9.7

Reference #:

IC89252

Modified date:

2013-04-09

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