PM76512: SYSLOGD GENERATED ABEND DURING TERMINATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The SYSLOGD address space takes a dump during termination.
  There was no prior abend that caused the dump to occur. A
  Timing scenario exists where the domark() function (a SIGALRM
  signal handler) was being invoked after the die() function
  during SYSLOGD termination.
  The following LE C traceback of routines is displayed when IPCS
  Verbx Ledata 'ceedump ntheads(*)'
  
  is issued against the dump:
  
  DSA      Entry       E  Offset  Statement     Load Mod
  
  1        EZBTDUMP    +00000276                EZASLOGD
  2        catchAbend  +000000AA                EZASLOGD
  3                    +00000720                CEEEV003
  4                    +000001C2                CEEEV003
  5                    +00000D60                CEEPLPKA
  6                    +00000208                CEEEV003
  7                    +000000CE                CEEEV003
  8     slg_thread_lock
                       +000002C0                EZASLOGD
  9     slg_serialize_inet
                       +0000008E                EZASLOGD
  10     domark        +00000102                EZASLOGD
  11                   +00000720                CEEEV003
  12                   +000000D6                CEEEV003
  13                   -082E8263                CEEPLPKA
  14                   +003859FA                CEEEV003
  15                   +10CD26D2                CEEEV003
  16       die         +0000051E                EZASLOGD
  17                   +00000720                CEEEV003
  18                   +000000D6                CEEEV003
  19                   -082E8263                CEEPLPKA
  20       logmsg      -1092C6F6                EZASLOGD
  21                   +10B65C56                CEEEV003
  22       main        +00001E16                EZASLOGD
  23                   +10C4C178                CEEEV003
  24                   +000001C4                CEEPLPKA
  
  
  Restart of SYSLOGD works without error
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the IBM Communications Server   *
  *                 for z/OS Version 1 Release(s) 13: SYSLOGD    *
  ****************************************************************
  * PROBLEM DESCRIPTION: When stopping syslogd, syslogd          *
  *                      terminates abnormally in the domark()   *
  *                      function.                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The domark() function (a SIGALRM signal handler) was being
  invoked after the die() function was invoked which was
  destroying the locks.  Failure occurred when the domark
  function cause a lock to be obtained which already had been
  obtained for the thread by the die() function.
  +-------------------------------------------------------------+
  + 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

• SyslogD is amended to prevent the domark function from being
  invoked when the die() function is entered.
  
  * Cross Reference between External and Internal Names
  EZASLOGD (SYSLOGD )
  

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:

  UK83479

Modules/Macros

•    EZASLOGD
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R1D0 PSY UK83479

     UP12/12/18 P F212

Fix is available

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