PM56144: EYUXL0905E ASRA IN CLET. TRAN=LEEI AP0001

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After applying UK75245 or UK75246, an S0C4 / ASRA may occur in
  CPSM method CLET.
  .
  Using the CICS Kernel Error Table to investigate the S0C4, the
  failing instruction will be a MVC. The 'from' argument will be
  pointed to by R1 in the CMAS address space. However, since we
  are in Access Register mode at the time, if AR 1 contains an
  ALET for another address space, the MVC may program check.
  .
  Additional Symptoms/Keywords
  EYU9XLRV LEEI ASRA S0C4 EYU9CM00
  KIXREVSVR
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICSPlex SM V4R1M0 and V4R2M0 Users      *
  ****************************************************************
  * PROBLEM DESCRIPTION: After applying PTF UK75245 (CPSM 4.1)   *
  *                      or UK75246 (CPSM 4.2) for APAR PM48721, *
  *                      abend ASRA/S0C4 may occur in a CMAS in  *
  *                      method EYU0CLET (CLET) at offset        *
  *                      x'1E08' (CPSM 4.1) or x'1E06' (CPSM     *
  *                      4.2) when a MAS connect attempt fails.  *
  ****************************************************************
  * RECOMMENDATION: After applying the PTF that resolves this    *
  *                 APAR, all CMASes and MASes must be recycled  *
  *                 to pick up the new code.  The restarts need  *
  *                 not be performed at the same time, however   *
  *                 until a CMAS and its connected MASes are     *
  *                 restarted with the updated code, the problem *
  *                 may continue to occur.                       *
  ****************************************************************
  Code added to address APAR PM48721 created a new control block
  for MASes, the EYUBCTAB, which is allocated in the MAS
  dataspace.  To ensure it is freed when a MAS terminates, code
  was added to both the MAS (in method EYU0CLTM (CLTM)) and the
  CMAS (in method EYU0CLET (CLET)).  Depending upon the type of
  MAS or CMAS termination, either CLTM or CLET, but not both,
  should have freed the EYUBCTAB.  However, a logic error in CLTM
  could result in both CLTM and CLET issuing free requests for the
  EYUBCTAB.  Since CLTM runs before CLET, the free request from
  CLET will fail.  While attempting to issue an exception trace to
  report this failure, another logic error in CLET will result in
  the abend ASRA/S0C4 documented above.
  

Problem conclusion

• Since CLTM will always run before CLET, it has been updated to
  ensure that if it frees the EYUBCTAB, then CLET cannot.
  
  CLTM has been updated to resolve the logic error that results in
  the abend when it attempts to issue an exception trace.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  UK75796 UK75797

Modules/Macros

•    EYUBCTAB EYUBCTNL EYUQCTER EYURCLCB EYURCLCE
  EYURCOEB EYURCTER EYURXLMF EYUTRCOM EYUYCTER EYUZCTER EYU0CLET
  EYU0CLEV EYU0CLIN EYU0CLTM EYU0CSLT EYU0CTBP EYU0CTBR EYU0CTBS
  EYU0CTED EYU0CTER EYU0CTES EYU0CTIN EYU0CTRC EYU0CTRM EYU0XLTP
  EYU9CMRU EYU9CMR3 EYU9CMR4
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R60M PSY UK75796

     UP12/02/02 P F202

• R70M PSY UK75797

     UP12/02/02 P F202

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.