A fix is available
APAR status
Closed as program error.
Error description
CICS hangs due to a deadlock. Dispatcher domain shows most tasks are suspended waiting for S8 TCBs (suspend type DISPATCH SSL_POOL), or waiting for locks (LMQUEUE). Lock manager shows that the 2 locks involved are the SOLOCK and the SOMGLOCK. Tasks that own the S8 TCBs are waiting for one of the locks. The owner of the SOLOCK is waiting for the SOMGLOCK. And the owner of the SOMGLOCK is the Timer task who is trying to close a socket after a timeout but suspened trying to change mode to an S8 TCB. Problem happened even after increasing the MAXSSLTCBS parameter. . Additional Symptom(s) Search Keyword(s): KIXREVSCB CLOSE_SOCKET_IN_POOL SWITCH_TO_PTHREAD DFHSOSE DFHSOPL hang hangs hung wait waits deadly embrace
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS users with UI24378 or UI24381 * * or UI24379 applied. * **************************************************************** * PROBLEM DESCRIPTION: CICS hangs with SOLOCK and SOMGLOCK * * conflct and a wait for an S8 TCB. * **************************************************************** CICS has a URIMAP with a SOCKETCLOSE time value set. The SO domain obtains the SOLOCK and SOMGLOCK locks in two tasks, but the lock/unlock sequence is incorrect, and the two tasks hang, holding an S8 TCB. CICS stalls.
Problem conclusion
UI24378 UI24381 UI24379 DFHSOMG has been changed to manage the SOMGLOCK correctly.
Temporary fix
Comments
APAR Information
APAR number
PI63509
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
800
Status
CLOSED PER
PE
YesPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-06-02
Closed date
2017-01-10
Last modified date
2017-02-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
DFH$CAT1 DFH62XM DFHABAB DFHACP DFHAIIN2 DFHALP DFHALRC DFHAMBA DFHAMD2 DFHAMDH DFHAMFC DFHAMIS DFHAMLD DFHAMLM DFHAMMQ DFHAMNQ DFHAMP00 DFHAMPAD DFHAMPAP DFHAMPCH DFHAMPCO DFHAMPDF DFHAMPDL DFHAMPFI DFHAMPG DFHAMPI DFHAMPIL DFHAMPLO DFHAMRL DFHAMSJ DFHAMSO DFHAMTD DFHAMTS DFHAMW2 DFHAMWB DFHAPCE DFHAPDM DFHAPIQ DFHAPLI1 DFHAPLI2 DFHAPLI3 DFHAPLJ1 DFHAPLJ3 DFHAPLJP DFHAPLX1 DFHAPLX3 DFHAPRC DFHAPRT DFHAPRX DFHAPSI DFHAPSIP DFHAPTIM DFHAPTIX DFHAPTR5 DFHAPTRY DFHBAM55 DFHBRAI DFHBRFM DFHBRMR DFHBRNS DFHBSIZ1 DFHBSIZ3 DFHBSM62 DFHBSMIR DFHBSMPP DFHBSS DFHBSSA DFHBSSF DFHBSSZ6 DFHBSSZG DFHBSSZM DFHBSSZP DFHBSSZS DFHBSTB3 DFHBSTD DFHBSTH DFHBSTI DFHBSTM DFHBSTO DFHBSTS DFHBSTT DFHBSTZ DFHBSTZ3 DFHBSTZA DFHBSTZB DFHBSTZE DFHBSTZL DFHBSTZO DFHBSTZV DFHBSZZ DFHBSZZV DFHCAPB DFHCAPC DFHCCNV DFHCCNVG DFHCEGN DFHCESC DFHCIS4 DFHCQSY DFHCR1U DFHCR2U DFHCRIU DFHCRNP DFHCRSP DFHCXCU DFHD2CC DFHD2CM1 DFHD2CO DFHD2D2 DFHD2D2T DFHD2DUF DFHD2EX1 DFHD2EX2 DFHD2EX3 DFHD2IN1 DFHD2MSB DFHD2RP DFHD2ST DFHD2STP DFHD2STR DFHD2TM DFHD2TR1 DFHD2TRI DFHDBCON DFHDBCR DFHDBCT DFHDDAP DFHDLI DFHDMPCA DFHDSAT DFHDSAUT DFHDSBR DFHDSCPX DFHDSDM DFHDSDS2 DFHDSDS3 DFHDSDS4 DFHDSDUF DFHDSIT DFHDSKE DFHDSMT DFHDSPEX DFHDSSM DFHDSSR DFHDSST DFHDSSTX DFHDSTCB DFHDSTI DFHDSTRI DFHDSUE DFHDTST DFHDXAX DFHDXCU DFHEBF DFHECEAS DFHECEC DFHECRL DFHECRP DFHECTRI DFHEDFX DFHEEI DFHEIDTI DFHEIFC DFHEIG DFHEIIC DFHEIP DFHEIPI DFHEIPSE DFHEIPSH DFHEIQAS DFHEIQBR DFHEIQD2 DFHEIQDI DFHEIQDS DFHEIQEC DFHEIQIS DFHEIQLD DFHEIQML DFHEIQMQ DFHEIQPI DFHEIQRL DFHEIQSA DFHEIQSC DFHEIQSO DFHEIQSP DFHEIQSQ DFHEIQST DFHEIQSY DFHEIQSZ DFHEIQVT DFHEIQW2 DFHEIQWB DFHEIQWR DFHEISO DFHEISP DFHEITL DFHEITS DFHEIWB DFHEJOB DFHEJOS DFHEMT28 DFHEOP DFHEPC DFHEPDM DFHEPEV DFHEPRL DFHEPTRI DFHERM DFHESN DFHESP28 DFHESZ DFHETD DFHFCBU DFHFCCA DFHFCFL DFHFCFR DFHFCFS DFHFCL DFHFCMT DFHFCMTT DFHFCN DFHFCQR DFHFCQS DFHFCRD DFHFCRL DFHFCRO DFHFCRP DFHFCVR DFHFCVS DFHGMM DFHICP DFHICRC DFHICUS DFHICXM DFHIEIE DFHIEXM DFHISAL DFHISCO DFHISCOP DFHISCOT DFHISCU DFHISDM DFHISDUF DFHISEM DFHISEMP
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
Fix is available
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Document Information
Modified date:
01 February 2017