A fix is available
APAR status
Closed as program error.
Error description
CICS shutdown hangs and region must be cancelled. Subsequent restarts all fail due to SOS condition, DFHSM0133. CICS must be started Initial to recover. . The last CICS shutdown message indicated that CICS was quiescing the RM domain: . DFHRM0131 RESYNCHRONIZATION REQUIRED WITH IRC RESOURCES . The next expected messages for the RM domain would be these two which were never issued: . DFHRM0204 There are no indoubt, commit-failed or backout-failed UOWs. DFHRM0130 Recovery manager has successfully quiesced. . Domain manager confirms that most domains are waiting for the RM domain to quiesce. The RM shutdown task is a CSXM task that is suspending/waking up every 10 seconds out of module DFHRMSL7, proc RMSL7_SLEEP_A_WHILE. Flag KEYPOINT_SCHEDULED is set to YES, so DFHRMSL7 believes that an activity keypoint is still in progress, and so waits for it to complete before doing a warm keypoint. . The joblogs showed that a CSKP task abended. After CKSP abended, there are no more messages indicating successful keypoints were taken, or that the log tail was trimmed. Expected messages would have been: . DFHRM0205 AN ACTIVITY KEYPOINT HAS BEEN SUCCESSFULLY TAKEN. DFHLG0743 TAIL OF LOG STREAM xxxxxx.DFHLOG DELETED AT BLOCK ID.. . After CSKP abended, the KEYPOINT_SCHEDULED flag is left turned on, but CSKP is never resarted, no further keypoints are taken, and so the system log gets very large resulting in the subsequent SOS at startup. At startup, the SM domain shows that most of the storage is allocated to ECDSA as RMOFRMLK 's.
Local fix
Correct the cause of the CSKP task abending.
Problem summary
**************************************************************** * USERS AFFECTED: All CICS users * **************************************************************** * PROBLEM DESCRIPTION: An abend in a start of task TRUE for * * the CSKP activity keypoint task * * prevents subsequent keypoint operations.* **************************************************************** * RECOMMENDATION: * **************************************************************** CSKP is attached to perform an activity keypoint. A start of task TRUE is driven and this abends. CSKP terminates as a result. There is no mechanism to turn off the keypoint_scheduled flag in the RMSL anchor block. This prevents subsequent activity keypoints (or warm keypoint) from taking place. An emergency restart of the system can take an excessive time to complete as CICS has to read back a long way down DFHLOG to reconstruct the UOW activity in the previous run of the system. This can also result in a short on storage condition due to RMLK control blocks acquired during the extended restart. KEYWORDS: AKP msgdfhrm0001 dfhrm0001 rm0001 rm 0001 e/r system log class AKPs CSKPs
Problem conclusion
CICS recovery manager has been changed to record the transaction token information for CSKP into the RMSL anchor block when the CSKP task is attached. This allows the keypoint indicator information to be cleared by backout processing if CSKP suffers an abend. The CICS TS 4.2 Supplementary Data Areas manual will be changed on page 1078 as follows. The 40d bytes of reserved space at offset 55x will be modified to contain: "55 CHARACTER 3 * Prot 58 CHARACTER 8 Keypoint_tran_token CSKP task 60 CHARACTER 29 * Prot"
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PI74697
Reported component name
CICS TS Z/OS V4
Reported component ID
5655S9700
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-01-10
Closed date
2017-04-07
Last modified date
2017-06-08
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI78304 UI46271
Modules/Macros
DFHRMCD DFHRMCD1 DFHRMCD2 DFHRMCI2 DFHRMCI3 DFHRMCI4 DFHRMDM DFHRMDU0 DFHRMDU2 DFHRMDU3 DFHRMDU4 DFHRMDU5 DFHRMLKQ DFHRMLK1 DFHRMLK2 DFHRMLK3 DFHRMLK4 DFHRMLK5 DFHRMLN DFHRMLSD DFHRMLSF DFHRMLSO DFHRMLSP DFHRMLSS DFHRMLSU DFHRML1D DFHRMNM DFHRMNM1 DFHRMNS1 DFHRMNS2 DFHRMOT DFHRMRO DFHRMROO DFHRMROS DFHRMROU DFHRMROV DFHRMRO1 DFHRMRO2 DFHRMRO3 DFHRMRO4 DFHRMRS DFHRMR1D DFHRMR1E DFHRMR1K DFHRMR1S DFHRMSL DFHRMSLF DFHRMSLJ DFHRMSLL DFHRMSLO DFHRMSLV DFHRMSLW DFHRMSL1 DFHRMSL2 DFHRMSL3 DFHRMSL4 DFHRMSL5 DFHRMSL6 DFHRMSL7 DFHRMST DFHRMST1 DFHRMTRI DFHRMUC DFHRMUO DFHRMUW DFHRMUWB DFHRMUWE DFHRMUWF DFHRMUWH DFHRMUWJ DFHRMUWL DFHRMUWN DFHRMUWP DFHRMUWQ DFHRMUWS DFHRMUWU DFHRMUWV DFHRMUWW DFHRMUW0 DFHRMUW1 DFHRMUW2 DFHRMUW3 DFHRMU1C DFHRMU1D DFHRMU1E DFHRMU1F DFHRMU1G DFHRMU1J DFHRMU1K DFHRMU1L DFHRMU1N DFHRMU1Q DFHRMU1R DFHRMU1S DFHRMU1U DFHRMU1V DFHRMU1W DFHRMXNE DFHRMXN2 DFHRMXN4 DFHRMXN5 DFHR2TRI
Fix information
Fixed component name
CICS TS Z/OS V4
Fixed component ID
5655S9700
Applicable component levels
R700 PSY UI46271
UP17/04/24 P F704
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:
08 June 2017