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Informix - Problem description

Problem IT30544 Status: Closed

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

product:
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10
Problem 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= procid=561

afstack
afhandler
affail_interface
mt_ex_throw_sig
afsig_handler
(Linux) 
__memset_avx2
alloc_changelog
new_changelog
cursor_insert
ifx_coll_insert
geval
...
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.                        *
****************************************************************
Local Fix:
Solution
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
09.10.2019
25.02.2020
25.02.2020
Problem solved at the following versions (IBM BugInfos)
12.10.xC14
Problem solved according to the fixlist(s) of the following version(s)
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