A fix is available
APAR status
Closed as program error.
Error description
After an IPL at the weekend we got a dump of one of our CMASes . The dump title was : EYU0XZPT Dump,CMAS,CMAS,LPAR,CMAS,WMGR,0000138,TRAC,EYU0XCLF CMAS log shows : EYUTS0003I CMASA Topology Join for MAS1 Complete - APPLID(MAS1)CICSplex(PRODUCT) @EYUXZ0910I CMASA EYU0XZPT Dump,CMASA,CMASA,LPAR,CMAS,WMGR, 00 00138,TRAC,EYU0XCLF,14/01/2024,01:32:50. . EYUWM0403E CMASA Workload Manager Task has reported an error processing event (Mas Join) for MAS (MAS1). . IEA794I SVC DUMP HAS CAPTURED: DUMPID=001 REQUESTED BY JOB (CMASA) DUMP TITLE=EYU0XZPT Dump,CMASA,CMASA,LPAR,CMAS,WMGR,00001 38,TRAC,EYU0XCLF,14/01/2024,01:32:50 CMAS issues the following exception trace : Task:138 GMT:00:32:50.29702 Date: 1/14/24 Local-TOD:01:32:50.29702 UOW:(CPSM) Task-Start:00:08:27.00543 Method:XCLF Prior:WMAA Debug:SYNCPROB Point-Id:75 Major-Obj:CHE Envrn:CMAS Type:EXCEPTION Tran-Id:WMGR CICS-Task:WLM System:LPAR CMAS:CMAS1 MAL Len:0055 Alet:00000000 Addr:22F9B6E0 Resp:2 Resn:3 Method Argument List Details for XCLF: Keyword Queue Data Data Value Dir Address Value In: *FUNCTION FUN . 00AF4D77 FNDCLST *DEBUG CHR . 00AF4D7B WMAAXCLF *LIST_ID LID . 00AF4D83 A=000032A8 N=00430120 *KEY BLK . 00AF4D8B A=22F9BB24 L=0000000C PATTERN BLK . *ELEMENT BUF . 00AF4D9B A=22F9BAF8 L=00000000 GENEXACT SDT . UNLOCKED SDT . SETADDR SDT . TABTYPE ENM . TABVER BIN . MASKONLY SDT . MASKCHAR CHR . Out: *RESPONSE RSP . 00AF4D79 EXCEPTION *REASON RSN . 00AF4D7A METHOD_FAILED *STATUS STA . 00AF4DAB OK
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICSPlex SM users. * **************************************************************** * PROBLEM DESCRIPTION: The following msg appears in the CMAS * * EYULOG - * * * * EYUWI0020I masname WLM Routing * * initiated for workload( ) in * * Routing Region(masname), * * CICSplex(cicsplex). * * * * The workload can be any hex string that * * may, or may not, contain printable * * characters. * * This is an indication that a storage * * overlay has occurred in a CPSM * * dataspace. There may, or may not, be * * further errors, depending on what is * * overlaid. * **************************************************************** * RECOMMENDATION: Apply the PTF to all MASes. These can be * * done in any order. * **************************************************************** During routing region (RR) startup the CMAS passes the address of a WTOR control block back to the routing region, which the RR then updates in method WNWK (EYU0WNWK). In this case invalid addresses were passed to EYU0WNWK, which in turn updated the wrong storage leading to random errors, which may occur hours later, if at all.
Problem conclusion
Method WNWK (EYU0WNWK) has been modified to validate the WNWK_TOR_DESC address passed from the CMAS. It now checks a) The address points to a WTOR, and b) the WTOR is for this MAS. If either of these tests fail the MAS will take a timely dump of the MAS, the CMAS, and the CPSM dataspaces to allow further diagnosis.
Temporary fix
Comments
APAR Information
APAR number
PH60298
Reported component name
CICS TS Z/OS V6
Reported component ID
5655YA100
Reported release
40M
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2024-03-12
Closed date
2024-03-26
Last modified date
2024-04-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI96245
Modules/Macros
CJH0WNWK CJI0WNWK CJJ0WNWK EYU0WNWK
Fix information
Fixed component name
CICS TS Z/OS V6
Fixed component ID
5655YA100
Applicable component levels
R40M PSY UI96245
UP24/03/29 P F403
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:
04 April 2024