PM91870: 0C4 IN SYSLOGD

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Abend 0C4 when Syslogd attempts to zero a pointer that has been
    freed.
    

Local fix

  • None
    KEYWORDS:  ABEND0C4 AB0C4
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of the IBM Communications Server   *
    *                 for z/OS Version 1 Release(s) 12 and 13      *
    *                 IP: SYSLOGD                                  *
    ****************************************************************
    * PROBLEM DESCRIPTION: Abend S0C4 occurrs after a Modify       *
    *                      SYSLOGD,Restart command.                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During restart processing, all the of storage for the file
    rules are freed.  It is possible for this heap storage to be
    freemained.  During archive initialization for the new
    configuration, the file system control blocks for the previous
    configuration are freed.  Including resetting a pointer in the
    rules control block. This reference to freed storage may
    overlay storage or abend if it is  freemained
    +-------------------------------------------------------------+
    + 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 free the previous configuration file
    system control blocks before the previous rule control blocks
    are freed preventing storage overlays and abends.
    
    * Cross Reference between External and Internal Names
    EZASLOGD (SYSLOGD )  EZASLOGD (SYSLOGD )
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM91870

  • Reported component name

    TCP/IP V3 MVS

  • Reported component ID

    5655HAL00

  • Reported release

    1C0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-06-26

  • Closed date

    2013-07-15

  • Last modified date

    2014-02-06

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

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

    UK95857 UK95858 PM94558

Modules/Macros

  •    EZASLOGD EZASYARC EZASYLGH
    

Fix information

  • Fixed component name

    TCP/IP V3 MVS

  • Fixed component ID

    5655HAL00

Applicable component levels

  • R1C0 PSY UK95857

       UP13/08/15 P F308

  • R1D0 PSY UK95858

       UP13/08/15 P F308

Fix is available

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Document information


More support for:

z/OS family

Software version:

1C0

Operating system(s):

z/OS

Reference #:

PM91870

Modified date:

2014-02-06

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