PH29512: A SYSTEM ABEND 0C4 REASON CODE X'4' OCCURRED IN MODULE DFHXCPRX AT OFFSET X'3578'. 20/09/15 PTF PEREMOVE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After activating CICS 5.5 RSU2006, customer has problems with
  his CICS Transaction Gateway (v9.2) tasks.
  
  From the fault
  analyzer we see below:
  A system abend 0C4 reason code X'4'
  occurred in module DFHXCPRX at offset X'3578'.
  
  From the dumps
  we see the below stack trace and CcicsECI is a native(JNI) call
  to CICS TS.
  
  1XMCURTHDINFO Current thread
  3XMTHREADINFO
  "Worker-0" J9VMThread:0x000000001DB57000,
  omrthread_t:0x00000050AFF16D30,
  java/lang/Thread:0x000000008602DC70, state:R,
  prio=5
  3XMJAVALTHREAD (java/lang/Thread getId:0x16,
  isDaemon:true)
  3XMTHREADINFO1 (native thread ID:0x207C7000,
  native priority:0x5, native policy:UNKNOWN, vmstate:R, vm
  thread flags:0x00000020)
  3XMCPUTIME CPU usage total:
  0.251000000 secs, current category="Application"
  3XMHEAPALLOC
  Heap bytes allocated since last GC cycle=152296
  (0x252E8)
  3XMTHREADINFO3 Java callstack:
  4XESTACKTRACE at
  com/ibm/ctg/server/ServerECIRequest.CcicsECI(Native
  Method)
  4XESTACKTRACE at
  com/ibm/ctg/server/ServerECIRequest.executeECINative(Bytecode
  PC:612)
  4XESTACKTRACE at
  com/ibm/ctg/server/ServerECIRequest.executeECI(Bytecode
  PC:838)
  4XESTACKTRACE at
  com/ibm/ctg/server/ServerECIRequest.execute(Bytecode
  PC:603)
  4XESTACKTRACE at com/ibm/ctg/server/Worker.run(Bytecode
  PC:221)
  4XESTACKTRACE at
  java/lang/Thread.run(Thread.java:820)
  3XMTHREADINFO3 No native
  callstack available on this platform
  
  This looks to be
  introduced by APAR PH21519 PTF UI69949. The target of the
  executed MVC in DFHXCPRH has been built incorrectly leading to
  the 0C4.
  

Local fix

• NA
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 in module DFHXCPRX             *
  ****************************************************************
  An EXCI DPL call can result in an 0C4 when moving a UOWID as
  part of a call to DPL into CICS.
  The abend occurs in module DFHXCPRX, CSECT DFHXCPRH, on an
  EXECUTE instruction because of an invalid base address being
  used for the EXECUTE instruction.
  

Problem conclusion

• DFHXCPRH is changed to correct the failing MVC instruction by
  providing the correct base address for the EXECUTE.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PH29294

• APAR is sysrouted TO one or more of the following:

  UI71884

Modules/Macros

• DFHXCPRH
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R300 PSY UI71884

     UP20/10/03 P F010 ¢

Fix is available

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