PM57052: U4087 ABEND FOR CONDITION CEE3209S IN SNMP SUBAGENT - FINREVERSAL OF PM44187

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible in next release.

Error description

• A system has the SNMP SubAgent for the TCPIP stack fully
  enabled; SACONFIG ENABLED is coded in the TCPIP PROFILE (or left
  on by default) and an SNMP Agent (OSNMPD) is active.  If the
  system has been up for more than 9 months, time tags used within
  the SNMP protocol (100ths of a second) will be larger than
  2**31 - 1.  The potential exists for various SNMP queries (and
  trap conditions, such as an interface changing state) to get a
  Divide Exception (program interrupt code 0009) when calculating
  the associated time tags which will be reported as a U4087 ABEND
  in TCPIP.
  .
  Other Symptoms:
  
  U4039 abend
  
  The Language Environment runtime may report any of several
  routines (such as sd_get_ifEntry) as being the responsible
  program.  Examination of the PSW location will be at offset
  +0001A2 in EZBIESTM, and the reported routine will be the
  caller.  The combination of lower 32 bits of registers 14 and 15
  concatenated together to form a 64 bit value will be larger than
  00001387 FFFFD8F0.
  
  After the ABEND, the SNMP SubAgent will restart and issue the
  following message:
  
    EZZ3202I SNMP SUBAGENT: INITIALIZATION COMPLETE
  

Local fix

• If SNMP is enabled for TCPIP, then schedule a regular recycle of
  the stack sometime before nine months has elapsed.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the IBM Communications Server   *
  *                 for z/OS Version 1 Release(s) 11, 12, and    *
  *                 13 IP: SNMP                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: TCPIP abend U4087 following divide      *
  *                      exception in module EZBIESTM            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A TCPIP stack was configured with the SNMP SubAgent fully
  enabled and an SNMP Agent (OSNMPD) was active.  The TCPIP
  stack had been running without recycle for over 9 months.
  An ABEND0C9 in the TCPIP stack occurred when module EZBIESTM
  was called to compute a time delta (in hundredths of a second)
  and the quotient was too large after the DR assembler
  instruction (x'1DE1').  The TCPIP address space took a
  4087 abend dump.
  +-------------------------------------------------------------+
  + Please check our Communications Server for OS/390 homepages +
  + for common networking tips and fixes.  The URL for these    +
  + homepages can be found in Informational APAR II11334.       +
  +-------------------------------------------------------------+
  

Problem conclusion

Temporary fix

Comments

• Module EZBIESTM has been amended to correct a divide
  exception when calculating a large time delta during
  SNMP processing.
  

APAR Information

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

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

  UK76541 UK76542 UK76543

Modules/Macros

• EZBIESTM
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R1B0 PSY UK76541

     UP12/04/07 P F204

• R1C0 PSY UK76542

     UP12/04/07 P F204

• R1D0 PSY UK76543

     UP12/04/07 P F204

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.