IBM Support

IT30544: INSERT INTO A COLLATION IN A STORED PROCEDURE LEADS TO WRONG ROWSIZE CALCULATION AND AN ALLOCATION OF MEMORY IN 4GB RANGE

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APAR status

  • Closed as program error.

Error description

  • When in a SP an insert into a multiset/collation is made it may
    happen that the server starts an allocation of a huge piece of
    memory at one attempt. Subsequent the server faces in a
    exception and reports the following stack:
    
    16:27:58  Dynamically allocated new virtual shared memory
    segment (size 4244020KB)
    16:27:58  Memory sizes:resident:4796 KB, virtual:4937112 KB, no
    SHMTOTAL limit
    16:28:02  Assert Failed: Exception Caught. Type: MT_EX_OS,
    Context: mem
    16:28:02  IBM Informix Dynamic Server Version 12.10.FC12
    16:28:02   Who: Session(32, user@host, 16248, 0x10b910048)
                    Thread(60, sqlexec, 10b8cd638, 1)
                    File: mtex.c Line: 420
    16:28:02   Action: Please notify IBM Informix Technical Support.
    16:28:02  stack trace for pid 16235 written to
    /opt/informix/IBM/12.10.FC12/tmp/af.4249cf1
    16:28:02   See Also:
    /opt/informix/IBM/12.10.FC12/tmp/af.4249cf1, shmem.4249cf1.0
    16:28:06  Exception Caught. Type: MT_EX_OS, Context: mem
    16:28:06  (-9791): ERROR: Routine execution trap --
    procname=<dmob_get_netzbezug_ne4_ext> procid=561
    
    afstack
    afhandler
    affail_interface
    mt_ex_throw_sig
    afsig_handler
    (Linux) <signal frame>
    __memset_avx2
    alloc_changelog
    new_changelog
    cursor_insert
    ifx_coll_insert
    geval
    ...
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users of Informix Server prior to 12.10.xC14.                *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to Informix Server 12.10.xC14.                        *
    ****************************************************************
    

Problem conclusion

  • Fixed in Informix Server 12.10.xC14.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT30544

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    C10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-10-09

  • Closed date

    2020-02-25

  • Last modified date

    2020-02-25

  • 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":"BU048","label":"IBM Software"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"C10","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
25 February 2020