A fix is available
APAR status
Closed as program error.
Error description
Running CICS TS 5.2, a runaway is detected in a task, which CICS attempts to abend AICA, but program checks in DFHKEDOM producing a KERNDUMP. You see the following messages: DFHKE0201 applid ABOUT TO TAKE SDUMP. DUMPCODE:KERNDUMP, DUMPID: 0/0000. (MODULE DFHKESTX) DFHKE0202 applid SDUMP COMPLETE. (MODULE DFHKESTX) BPXP018I THREAD xxxx, IN PROCESS yyy, ENDED WITHOUT BEING UNDUBBED WITH COMPLETION CODE 0033E000, AND REASON CODE 00000000. The program check occurs on a Test under Mask - TM instruction at offset 68C in DFHKEDOM. The psw is in 64 bit addressing mode, and the instruction is using R1 - which has the high-order 8 bit on in the 1st half of the register - 8000000_xxxxxxxx. The 31 bit address xxxxxxxx is valid, and represents the current stack address, but the high order of the register containing 80000000 causes the program check. Additional Symptom(s) Search Keyword(s): KIXREVACC running with fault analyzer FA KERN DUMP
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS Users. * **************************************************************** * PROBLEM DESCRIPTION: An abend 0C4 in DFHKEDOM. * **************************************************************** In the problem situation a CICS application took an abend and Fault Analyser received control. This issued a CICS XPI call to obtain some storage. The XPI call enters DFHKEDOM which runs in AMODE 64, register 13 on entry to DFHKEDOM contains an invalid value in its top half. This is the cause of the abend 0C4.
Problem conclusion
DFHKEDOM has been changed on the XPI entry point, DFHKEXPI, to save off then clear the top half of register 13 on entry. When returning to its caller it will restore the callers register 13 top half previously saved.
Temporary fix
Comments
APAR Information
APAR number
PH09866
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
900
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-03-18
Closed date
2019-05-14
Last modified date
2019-06-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI62998 UI62999 UI63000 UI63001
Modules/Macros
DFHKEDOM
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
R000 PSY UI63000
UP19/05/16 P F905
R100 PSY UI62999
UP19/05/15 P F905
R200 PSY UI63001
UP19/05/16 P F905
R900 PSY UI62998
UP19/05/16 P F905
Fix is available
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Document Information
Modified date:
03 June 2019