A fix is available
APAR status
Closed as program error.
Error description
CICS issues message: . DFHAP1300DFHAP1300 The JVM at address X'aa' on thread X'xx' has encountered an error (reason code: X'00002000') and has requested further diagnostic data from CICS. . CICS eventually hangs and is cancelled. The joblogs show 0C4s occurring in DFHKESTX. The problem occurred because an incorrect ESTAE is established by module DFHCDK64 when the JVM makes a domain call into CICS. . The AP1300 dump shows the failing task is processing a DFHRZLN CANCEL request. This normally cancels a timer element (if one is running) and then freemains a RZOFSNSR control block Instead, CICS trace shows an elapsed time before the next trace which is a message domain call out of the JVM reporting a serious error. . The dump at time of hang shows there are 2 J9 TCBs which have taken abend0C4s in DFHKESTX. The 0C4s are occurring during CICS shutdown. The J9 TCBs are being detached which drives the CICS ESTAE exit, DFHKESTX. But the J9 TCBs both take the 0C4 on entry to DFHKESTX. The ESTAE environment was set up when the code in the JVM made a domain call to Request Streams via DFHCDK64. DFHCDK64 is an amode 64 module and should issue a call to indicate this state, but failed to do so meaning the ESTAE was never set up correctly. . It appears that the DFHRZLN CANCEL request probably took a program check due to the inconsistent state of RZ control blocks. This will have driven DFHKESTX which immediately program checks due to the bad ESTAE. This means that CICS never captured any Kernel error data. Z/OS will deliver the 0C4 in DFHKESTX to the next ESTAE handler (the JVM ESTAE). The JVM will not expect this abend so it eventually issues the AP1300. . Additional Symptom(s) Search Keyword(s): KIXREVxxx
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS Users. * **************************************************************** * PROBLEM DESCRIPTION: Abend0C4 in DFHKESTX (the CICS ESTAE * * exit) when it is called with a * * parameter list in the wrong amode. * **************************************************************** * RECOMMENDATION: * **************************************************************** A Java TCB was DETACHed during an immediate shutdown of CICS resulting in a call to the CICS ESTAE, DFHKESTX. This was called with a parameter list in AMODE(31) resulting in an abend 0C4 when it attempted to address one of the parameters in AMODE(64). The ESTAE exit was incorrectly set up by DFHCDK64 which is the interface between Java and the CICS domains. Additional keywords: S0C4 abendS0C4 abend33E 33E SYSSTATE ESTAEX JVM
Problem conclusion
DFHCDK64 has been altered to correctly set up the ESTAE parameter list in AMODE 64.
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PI54404
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
2015-12-17
Closed date
2016-04-15
Last modified date
2016-05-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI60413 UI37059 UI37060
Modules/Macros
DFHCDK64 DFJ@H360
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:
04 May 2016