OA45093: ABEND0C4 IN CNMCSSIW+'410' AND ABEND0C4 IN OTHER SSI MODULES.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Abend0c4 in SSI module CNMCSSIW at offset +x'410' due to bad
  data in canzlog dataspace - CNMCANZ0.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of Tivoli NetView for z/OS V6R1    *
  *                 and later, including IBM Automation Control  *
  *                 for z/OS V1R1.                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend S0C4 occurs in various address    *
  *                      spaces in CSects CNMCSSIW or DSI4LWQD   *
  *                      when the address derived from an        *
  *                      invalid segment number is beyond the    *
  *                      range of the Canzlog data space.        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  ABS0C4 in various address spaces in CSect CNMCSSIW or DSI4LQWD
  occurs after the full word at address 10A8 in the CNMCANZ0 data
  space is set to an invalid Canzlog segment number.
  This abend can only occur when TINYDS is specified in the
  first SUBSYS statement containing INITRTN(DSI4LSIT) in parmlib
  member IEFSSNxx.
  Such corruption occurs when DSI4LZF processes an AIFR containing
  a CZID value of 1 in the IFRAUCZID field.  This can occur when a
  foreign message is sent to a NetView operator because of routing
  codes (and not by console name), and foreign messages are not
  logged to Canzlog.
  DSI4LZF considers all CZID values greater than 0 to be valid and
  stores a value representing a number of microseconds at offset
  +28 in segment 1 in the Canzlog data space.  At a point later in
  time when that value (a segment number in the LDSMMLADEX array
  entry 15) is converted to a storage address and used to access
  data at that address, if the derived address is beyond the end
  of the data space the 0C4 abend occurs.
  

Problem conclusion

• DSI4LZF was modified so that it considers any CZID value less
  than 48 to be unusable.  This eliminates the corruption of
  LDSMMLADEX array entry 15 at address 10A8 in the CNMCANZ0 data
  space which eliminates the S0C4 abend.
  This change does not remove any existing corrupt values in the
  CNMCANZ0 data space.  The only way to remove such corruption
  once it occurs is a system IPL.
  

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:

  OA45159 UA73430

Modules/Macros

• DSI4LZF
  

Fix information

• Fixed component name

  NETVIEW FOR Z/O

• Fixed component ID

  5697NV600

Applicable component levels

• R10B PSY UA73430

     UP14/05/23 P F405

Fix is available

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