IBM Support

PH60863: MOD_MPMSTATS MAY CRASH ON WINDOWS DURING SHUTDOWN OR MAXREQUESTSPERCHILD

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APAR status

  • Closed as program error.

Error description

  • libapr_1!apr_vformatter+0x4c
    libapr_1!apr_vsnprintf+0x3c
    libhttpd!do_errorlog_default+0x23a
    libhttpd!log_error_core+0x4b4
    libhttpd!ap_log_error_+0x2c
    mod_mpmstats!ms_thread+0x125
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM HTTP Server on Windows     *
    ****************************************************************
    * PROBLEM DESCRIPTION: IHS may crash at shutdown or during     *
    *                      MaxRequestsPerChild with with the       *
    *                      following stack:                        *
    *                      libapr_1!apr_vformatter+0x4c            *
    *                      libapr_1!apr_vsnprintf+0x3c             *
    *                      libhttpd!do_errorlog_default+0x23a      *
    *                      libhttpd!log_error_core+0x4b4           *
    *                      libhttpd!ap_log_error_+0x2c             *
    *                      mod_mpmstats!ms_thread+0x125            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During an unexpected shutdown condition, a message logging
    method
    was called with invalid parameters. This could result in a crash
    of the process that is already exiting.
    

Problem conclusion

  • The rarely used code was updated to pass the correct paramters.
    
    The fix for this APAR is targeted for inclusion in IBM HTTP
    Server fix packs 8.5.5.26 and 9.0.5.20. For more information, se
    'Recommended Updates for WebSphere Application Server':
    https://www.ibm.com/support/pages/node/715553
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH60863

  • Reported component name

    IBM HTTP SERVER

  • Reported component ID

    5724J0801

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2024-04-12

  • Closed date

    2024-05-31

  • Last modified date

    2024-05-31

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

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

Fix information

  • Fixed component name

    IBM HTTP SERVER

  • Fixed component ID

    5724J0801

Applicable component levels

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTJ","label":"IBM HTTP Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
01 June 2024