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IT31506: RUNNING A SPECIFIC QUERY RETURNING IN MEMORY CORRUPTIONS, INVALID MUTEX TYPES OR AN EXCEPTION IN GROUPCOPYFUNC

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APAR status

  • Closed as program error.

Error description

  • When running a quite specific query with a sophisticates logic
    in the select list
    containing case expression combined with nested build in
    functions but having a
    simple select on a few tables with a group and a order cause
    memory corruption
    messages during the execution or at the cleanup.
    
    When setting up Memory scribbling the query showed an exception
    in the stack
    
    0x00000000014e545d (oninit) afstack
    0x00000000014eb021 (oninit) mt_ex_throw_sig
    0x00000000014f9398 (oninit) afsig_handler
    0x00007fedec8bdb10 (Linux) <signal frame>
    0x00007fedeb73551f (/lib64/libc-2.22.so) __memmove_avx_unaligned
    0x0000000000c000fd (oninit) groupcopyfunc
    0x0000000000c06100 (oninit) ha_insrt_hashtab_or_ovrfl_page
    0x0000000000c01591 (oninit) initgrpcols
    0x0000000000c0411b (oninit) group_open
    0x00000000008c9e19 (oninit) sort_open
    0x00000000008a2a21 (oninit) prepselect
    0x0000000000ada7bb (oninit) open_cursor
    0x0000000000af3aea (oninit) sq_open
    0x0000000000bc6afe (oninit) sqmain
    0x000000000161400a (oninit) spawn_thread
    0x00000000014d6122 (oninit) th_init_initgls
    0x000000000151c55f (oninit) startup
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4.  *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to Informix Server 12.10.xC14 or 14.10.xC4 (when      *
    * available).                                                  *
    ****************************************************************
    

Problem conclusion

  • Fixed in Informix Server 12.10.xC14 and 14.10.xC4.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT31506

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    E10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-01-14

  • Closed date

    2020-03-04

  • Last modified date

    2020-03-04

  • 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

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"E10","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
04 March 2020