OA43287: BUFFER OVERRUN WHEN USING KHD_TOTAL_HIST_MAXSIZE

A fix is available

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Reported Release:     623 FP2
    
    When the maximun size of the directory is met for
    KHD_TOTAL_HIST_MAXSIZE, the error message that is traced in the
    Operations Log and Universal Message Log overruns the message
    buffer which is only allocated for 128 characters.  This causes
    the stack to be corrupted which affects the unlocking of the
    short term history file and a dead lock occurs on the shortterm
    history file.
    
    RECREATE INSTRUCTIONS:
    Set KHD_TOTAL_HIST_MAXSIZE and see if the trace log shows that
    the lock on the file is not released for the short term history
    file.
    For this customer the short term history file was UNIXDPERF.
    This failure will be driven by the size of the short term
    history file name and how much of the stack is overrun.  So, it
    may not cause the failure for deadlock if the lock flag is not
    affected.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All TEMS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: BUFFER OVERRUN WHEN USING               *
    *                      KHD_TOTAL_HIST_MAXSIZE.                 *
    ****************************************************************
    * RECOMMENDATION: Apply the PTF.                               *
    ****************************************************************
    When the maximum size of the directory is met for the
    KHD_TOTAL_HIST_MAXSIZE environment variable, the error
    message that is traced in the Operations Log and Universal
    Message Log overruns the message buffer which is only
    allocated for 128 characters.  This causes the stack to be
    corrupted which affects the unlocking of the short term
    history file and a deadlock occurs on the short term history
    file.
    

Problem conclusion

  • Increased the message buffer to 255 bytes instead of 128.
    

Temporary fix

Comments

APAR Information

  • APAR number

    OA43287

  • Reported component name

    MGMT SERVER DS

  • Reported component ID

    5608A2800

  • Reported release

    630

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-09-06

  • Closed date

    2013-09-09

  • Last modified date

    2013-10-03

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

    IV43114

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

Modules/Macros

  • KRA
    

Fix information

  • Fixed component name

    MGMT SERVER DS

  • Fixed component ID

    5608A2800

Applicable component levels

  • R630 PSY UA70675

       UP13/09/19 P F309

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.



Rate this page:

(0 users)Average rating

Add comments

Document information


More support for:

Tivoli Management Server for Distributed Systems on z/OS

Software version:

630

Reference #:

OA43287

Modified date:

2013-10-03

Translate my page

Machine Translation

Content navigation