A fix is available
APAR status
Closed as program error.
Error description
You received a series of ASOD abends. . Before CWXN task is attached by CSOL, the client has already disconnected. CICS trace shows SOUS *EXC* GETSOCKNAME_FAILURE RETURN_VALUE(-1) RETURN_CODE(1124) REASON_CODE(749B0000). In this siutation, the CWXN task will always abend ASOD. The purpose of this apar is to prevent CWXN even being attached in this case. That will pevent the majority of the ASOD abends. . The stack for this CWXN: DFHKETA DFHDSKE DFHXMTA ABEND_TRANSACTION DFHXMER DFHPGPG INITIAL_LINK DFHAPLI1 CICS_INTERFACE DFHPCP DFHABAB TRANSACTION_DUMP_ROUTINE DFHDUDU TRANSACTION_DUMP TAKE_SYSTEM_DUMP . Note that a window will still exist between CWXN being attached and DFHSOXM being run during task initialization. If the client disconnects in that gap then CWXN will continue to abend ASOD. . Additional Symptom(s) Search Keyword(s): KIXREVSVR ABENDASOD
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS users. * **************************************************************** * PROBLEM DESCRIPTION: Transaction CWXN abends ASOD. * **************************************************************** * RECOMMENDATION: * **************************************************************** A client is sending a TCPIP request to CICS. Transaction CWXN is used. Before CICS attaches CWXN, the TCPIP connection is dropped and the client is disconnected. In the trace, a GETSOCKNAME_FAILURE exception is issued. However CICS still attaches transaction CWXN after it issues this exception. After CWXN is attached, because the client is still disconnected, CICS issues the GETSOCKNAME_FAILURE exception again and this time it causes CWXN to abend ASOD. Additional keywords: DFHAC2236 DFHSO0108 msgDFHAC2236 msgDFHSO0108 abendASOD
Problem conclusion
CICS is changed so that before it attaches CWXN, it checks the TCPIP connection to the client. If the connection is gone and the client is disconnected, CICS will not attach CWXN.
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PM68178
Reported component name
CICS TS Z/OS V4
Reported component ID
5655S9700
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-07-04
Closed date
2012-08-01
Last modified date
2013-12-13
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK80774 UK80775 PI08038
Modules/Macros
DFHWBSO
Fix information
Fixed component name
CICS TS Z/OS V4
Fixed component ID
5655S9700
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:
13 December 2013