OW32723: ABENDS0C7 IN FNMSDC00 LOAD MODULE, AT OFFSET X'5E' IN CSECT FNMSDC34 FOLLOWED BY ABENDS0C4 IN FNMONL00 LOAD MODULE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• NPM stops randomly but typically shortly after NPM SESSCOLL
  commands are activated.  The IEA995I symptom dump printed in
  NPM's joblogs shows FNMSDC00 task suffers an abend0c7 at offset
  x' 4672 ' but this is really an abends0c7 in fnmsdc00's csect
  FNMSDC34 at offset x' 5E ' (PSW minus Reg12 minus ILC).  CSECT
  is at base code of NPM 2.3
     This abend is immediately followed by another symptom dump
  for an abend0c4 in task FNMONL00.  Upon further analysis this
  is an abends0c4 in FNMONL00's FNMDSP00 csect at offset x' 560 '.
  This abend is a consequence of the first.  When the first abend
  is resolved, this s0c4 in NPM's dispatcher routine will also be
  resolved.
  
     NPM comes completely out of the system, with no need to force
  or cancel NPM, yet if NPM is attempted to be restarted, NPM's
  session collection routine, ISTEXPRF will abend upon startup:
     abends0e0 reason codes 2A or 28 or 29
  with vtam message IST985I 'User Exit ISTEXPRF replacement failed
  return code = F2 ' with RCF2 meaning 'an abend occured during
  processing within the exit ISTEXPRF'.
    Because of the MSGIST985I message, NPM will refuse to continue
  initialization, issuing MSGFNM305T 'FNMEXPRF not loaded, rc=24 '
  This is due to some NPM CSA control blocks still remaining even
  after NPM has completed its abend termination.
  
    To allow NPM to restart, run FNMCLNPJ cleanup job (available
  in SFNMJCL1).  However, NPM is likely to suffer the abends0c7
  again shortly, so another workaround may be to set HOSTCOLL=NO
  on the NPM statement in FNMINIT, so that NPM can still collect
  NCP, LAN, and VTAM statistics (but not session transit times or
  RTM data).
  Search arguments:  ABEND0E0 AB/S00E0 AB/S0E0 AB/S0C7 AB/S00C7
    ABENDS00C7
  

Local fix

• Run FNMCLNPJ to clean up NPM's CSA storage which will allow
  NPM to be restarted with HOSTCOLL=YES.  However, if the abend0c7
  recurs frequently, then an iterim workaround is to set HOSTCOLL
  to NO on the NPM statement in FNMINIT, which will allow NPM to
  run in a limited mode.  It won't be able to collect session or
  rtm data, but it will be able to collect NCP (NETCOLL), LAN
  bridge and segment, and VTAM data.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All NPM V2   users.                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABENDS0C7 in FNMSDC00 load module,      *
  *                      at offset X'5E' in CSECT FNMSDC34       *
  *                      followed by ABENDS0C4 in FNMONL00       *
  ****************************************************************
  * RECOMMENDATION: APPLY THE PTF FIXING THIS APAR               *
  ****************************************************************
  If customer codes LUGRPNUM=xx (xx>0) so to enable the new
  LUGROUP functionality and use the old LUGROUP type resources
  (by inserting in the LU name some special characters like $,#
  etc etc) FNMSDC34 is wrongly invoked and code abends S0C7.
  This problem can be bypassed if LUGRPNUM=0 is coded.
  
  
  
                            - - -
  ADDITIONAL SYMPTOMS:
  AREA:
         SESCO   SESSION COLLECTION
               SESCO    SESSION COLLECTION
  
  
  MESSAGES:  MSGIST985I FNM305T
  PANELID:
  KEYWORDS:  ABENDS0C7 ABEND S0C7 FNMSDC34 ABENDS0C4 S0C4
             STOP RANDOM RANDOMLY SESSCOLL FNMSDC00 FNMSDC40
  

Problem conclusion

• Problem is dued because a piece of code is incorrectly
  invoked.
  Additional code has been added to invoke module FNMSDC34
  in a proper way
  

Temporary fix

Comments

APAR Information

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

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

  UW53308 UW53309 UW53393

Modules/Macros

• FNMSDC40
  

Fix information

• Fixed component name

  NPM V2 MVS

• Fixed component ID

  565504300

Applicable component levels

• R220 PSY UW53308

     UP99/01/15 P F901

• R230 PSY UW53309

     UP99/01/15 P F901

• R240 PSY UW53393

     UP99/01/15 P F901

Fix is available

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