A fix is available
APAR status
Closed as program error.
Error description
A backup of CPIH transactions in the region is observed. The CPIH tasks are all suspended on resource type LMQUEUE. From a dump of the region, Lock Manager shows the lock they are waiting on is PIIMLOCK. From LM domain we can get the lock owner's KE_TASK/TASENTRY, however, at dump time the real lock owner has already gone and it's TASENTRY has been reused by another task. Kernel error table shows the real lock owner task got 999 (Runaway) abend at a previous time. DFHPIRS was in incontrol when the loop was detected. This is identical to apar PI44634 which was closed RET Additional Symptom(s) Search Keyword(s): KIXREVCTC PI44634
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All CICS Users. * **************************************************************** * PROBLEM DESCRIPTION: Loop in DFHPIIM causing AICA abend and * * retention of PIIM lock. * **************************************************************** * RECOMMENDATION: * **************************************************************** The loop termination condition in PIIM_LOOKUP_CTX_TOKEN is incorrect which can result in an infinite loop and AICA abend when the context token is not found in the scan. This causes recovery to be entered while the PIIMLOCK is still held and eventually the system will hang as a result. KEYWORDS: PI44634
Problem conclusion
Module DFHPIIM has been changed to correct the scanning loop so that the AICA abend does not occur, and to ensure that the PIIM lock is always released.
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PI56470
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-02-02
Closed date
2016-02-11
Last modified date
2016-04-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI56473 UI35322 UI35323
Modules/Macros
DFHPIAD DFHPIAT DFHPIA1 DFHPICA DFHPICC DFHPIDM DFHPIDSH DFHPIDUF DFHPIII DFHPIIW DFHPILN DFHPIMM DFHPIPL DFHPIPM DFHPIPM2 DFHPIPS DFHPIRE DFHPIRI DFHPIRL DFHPIRM DFHPIRN DFHPIRS DFHPISC DFHPISF DFHPISN DFHPIST DFHPITC DFHPITC1 DFHPITC2 DFHPITC3 DFHPITE DFHPITH DFHPITL DFHPITQ DFHPITRI DFHPITS DFHPIUE DFHPIWR DFHPIWT DFHPIXI DFHPIXM DFHPIXO DFHWSADH DFHWSATR DFHWSATX
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
18 April 2016