A fix is available
APAR status
Closed as program error.
Error description
When running IMS Utility Control Facility on IMS environment with the RECON Loss Notification exit enabled, the attached task for the UCF utility function and the task for DBRC group service are running under different TCB. Both tasks are sharing the same DBRC block. If both tasks be processed in parallel, unpredictable results can occur. In the case of this APAR, the UCF job abend2480 eventually. .
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: IMS V12 users of the Utility Control Facil- * * ity in conjunction with RECON LOSS NOTIFIC- * * ATION. * **************************************************************** * PROBLEM DESCRIPTION: There is a conflict between UCF attach- * * ing code with RECON Loss Notification * * on and the EOJ call for Prefix Resol- * * ution is missing from the RECON. * **************************************************************** * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF * **************************************************************** Recon Loss Notification cannot function properly if executing a daughter TCB because it requires IMS to execute in the primary address space (PASN). There is a timing issue with the attached TCB intermittently finishing in the secondary address space (SASN) when an IMS function has not completed before the RECON Loss Notification has not been checked. The DFSURPR0 DBRC EOJ call has a null address when using variable ATHRQDBA equal to zero causing it to be skipped and not recorded in the DBRC RECON.
Problem conclusion
GEN: KEYWORDS: *** END IMS KEYWORDS *** DFSURPR0 now uses PSTDBRCA instead of ATHRQDBA to address the parameter area for the DBRC EOJ call. DSPCRTR0 clear AUTH field for new request DSPURI10 is fixed to deregister from SCI when UCF is in use after RECON does physical close. DSPDSS01 is fixed to deregister from SCI when UCF is in use after RECON does physical close in BPE environment.
Temporary fix
Comments
APAR Information
APAR number
PM86459
Reported component name
IMS V12
Reported component ID
5635A0300
Reported release
200
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2013-04-05
Closed date
2013-10-07
Last modified date
2013-11-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK98295
Modules/Macros
DFSURGP0 DSPCRTR0 DSPDSS01 DSPURI01
Fix information
Fixed component name
IMS V12
Fixed component ID
5635A0300
Applicable component levels
R200 PSY UK98295
UP13/10/15 P F310
Fix is available
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Document Information
Modified date:
14 December 2020