A fix is available
APAR status
Closed as program error.
Error description
ABEND0C4-00000004 in CSQXREXT using a channel exit and SHARECNV>0. ADDITIONAL SYMPTOMS : ABEND0C4 CSQXRCTL CSQXRCMP +049A4 REASON CODE 4 ABEND5C6 00E70054 CSQXADPM CSQXADPM +071E6
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM MQ for z/OS Version 9 * * Release 0 Modification 0 and Release 1 * * Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: An S0C4 Abend may be seen in CSQXREXT * * module when using channel exit with * * SHARECNV>0 * **************************************************************** In a specific scenario where we are using a multiplexed channel, SHARECNV value > 0, on a callback thread the abend occurs in the rriCallSndExit function while testing the StatisticsToggle flag since it was not initialised.
Problem conclusion
The CSQXRSTM module has been updated (called prior to where problem occurs) to ensure all the affected pointers or variables have been initialised properly for all circumstances
Temporary fix
Comments
APAR Information
APAR number
PH10849
Reported component name
IBM MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-04-10
Closed date
2019-06-13
Last modified date
2020-10-06
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI63631 UI63632
Modules/Macros
CSQXRSTM
Fix information
Fixed component name
IBM MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
Fix is available
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Document Information
Modified date:
07 October 2020