A fix is available
APAR status
Closed as program error.
Error description
Dispatcher pre-initialisation may set some dispatcher anchor values to zero. This may result in DFHTOD assuming year 2042 and not 0. As a consequence, some dispatcher housekeeping routines may not run.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All. * **************************************************************** * PROBLEM DESCRIPTION: Housekeeping routines in DISPATCHER * * code may not run as expected. * **************************************************************** During CICS start up, DFHDSDM the Dispatcher initialisation module sets various fields to 0 (rather than a minimum tick value). As a consequence, some Dispatcher housekeeping routines (eg: for the deletion of unused open TCBs when the system is idle) may not run.
Problem conclusion
Dispatcher code has been amended to correct the aforementioned scenario.
Temporary fix
Comments
APAR Information
APAR number
PH68737
Reported component name
CICS TS Z/OS V6
Reported component ID
5655YA100
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2025-10-29
Closed date
2026-02-17
Last modified date
2026-03-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UO06839
Modules/Macros
DFHDSAT DFHDSAUT DFHDSCPX DFHDSDM DFHDSDS3 DFHDSSR DFHDSTCB
Fix information
Fixed component name
CICS TS Z/OS V6
Fixed component ID
5655YA100
Applicable component levels
R600 PSY UO06839
UP26/02/18 P F602
Fix is available
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Document Information
Modified date:
02 March 2026