IC87375: BTSCANNER THREAD CAN ASSERT FAIL WHEN BUFFER MODIFIED IN INCONSISTENT CHUNK WHEN CLEANING EN_US.UTF8 NVARCHAR INDEX

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APAR status

  • Closed as program error.

Error description

  • Comparable failures have occurred on a customer AIX 11.70.FC5
    instance and an in-house Linux 86_64 reproduction:
    
    16:00:44  IBM Informix Dynamic Server Version 11.70.FC5 Software
    Serial Number AAA#B000000
    
    16:00:44  Assert Failed: Buffer modified in inconsistent chunk.
    16:00:44   Who: Session(6, informix@rocklaubster.lenexa.ibm.com,
    0, 0x4bc57318)
                    Thread(15, btscanner_0, 4bc161d8, 1)
                    File: rsdebug.c Line: 1006
    16:00:44   Results: Chunk 2 is being taken OFFLINE.
    16:00:44   Action: Restore space containing this chunk from the
    archive.
    16:00:44  Raw hex dump of stack located in
    /work3/laube/pmrs/31742_122_000/tmp/af.3f76dfc.rawstk
    16:00:44  Stack for thread: 15 btscanner_0
    
     base: 0x000000004d9bf000
      len:   69632
       pc: 0x000000000129e976
      tos: 0x000000004d9ce950
    state: running
       vp: 1
    
    (oninit) afstack
    (oninit) afhandler
    (oninit) affail_interface
    (oninit) buffcheck
    (oninit) btmerge
    (oninit) btcompress
    (oninit) btusearch
    (oninit) btc_range_scan_clean_buffer
    (oninit) btc_scan_index
    (oninit) btscanner_loop
    (oninit) startup
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users of IDS 11.50 and above                                 *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to IDS-11.70.xC7                                      *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In IDS-11.70.xC7
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC87375

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    B70

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-19

  • Closed date

    2014-02-26

  • Last modified date

    2014-02-26

  • 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

    INFORMIX SERVER

  • Fixed component ID

    5725A3900

Applicable component levels

  • RB50 PSY

       UP

  • RB70 PSY

       UP



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Document information


More support for:

Informix Servers

Software version:

B70

Reference #:

IC87375

Modified date:

2014-02-26

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