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IV85983: RMC ON LPAR MAY CORE DUMP DUE TO HMC IBM.SERVICEEVENT HANDLING

A fix is available

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • ***************************************************************
    * USERS AFFECTED:
    * Customers with a logical partition managed by an HMC may
    * experience the rmcd core dump.
    * The core dump will lead to a node failure on nodes running
    * PowerHA SystemMirror v7 with RSCT 3.1.4.0 or higher, or
    * Tivoli System Automation for Multi-Platform (TSAMP) at any
    * RSCT level, if holding critical resources.
    ***************************************************************
    * PROBLEM DESCRIPTION:
    * It is possible for an IBM.ServiceEvent message to be generated
    * from an HMC which the RMC subsystem on an LPAR will core dump
    * when attempting to handle.
    * The bad message is not predictable or deliberately
    * reproducable, and is usually a rare occurrence.
    * The reason behind the bad message on the HMC is not yet
    * understood, so the scope of this fix will simply be for RMC
    * to ignore the message and not fail as a result.
    ***************************************************************
    * RECOMMENDATION:
    * Interim fixes for PowerHA 7 customers at the latest SP levels
    * of 6.1.9, 7.1.3, 7.1.4, and 7.2.0 are available from:
    * https://ibm.biz/PowerHAFixes
    * (Ifixes for older levels, or for other cluster types, can be
    * requested from IBM service on an as-needed basis.)
    ***************************************************************
    

Local fix

Problem summary

  • ***************************************************************
    * USERS AFFECTED:
    * Customers with a logical partition managed by an HMC may
    * experience the rmcd core dump.
    * The core dump will lead to a node failure on nodes running
    * PowerHA SystemMirror v7 with RSCT 3.1.4.0 or higher, or
    * Tivoli System Automation for Multi-Platform (TSAMP) at any
    * RSCT level, if holding critical resources.
    ***************************************************************
    * PROBLEM DESCRIPTION:
    * It is possible for an IBM.ServiceEvent message to be generated
    * from an HMC which the RMC subsystem on an LPAR will core dump
    * when attempting to handle.
    * The bad message is not predictable or deliberately
    * reproducable, and is usually a rare occurrence.
    * The reason behind the bad message on the HMC is not yet
    * understood, so the scope of this fix will simply be for RMC
    * to ignore the message and not fail as a result.
    ***************************************************************
    * RECOMMENDATION:
    * Interim fixes for PowerHA 7 customers at the latest SP levels
    * of 6.1.9, 7.1.3, 7.1.4, and 7.2.0 are available from:
    * https://ibm.biz/PowerHAFixes
    * (Ifixes for older levels, or for other cluster types, can be
    * requested from IBM service on an as-needed basis.)
    ***************************************************************
    

Problem conclusion

  • The reason for the bad registration is not yet understood,
    so the scope of this fix will simply be to ignore the
    message and not fail.
    If more information is uncovered in the future about how
    the message is generated, that will be addressed as a
    separate issue (and likely not involving an APAR, if it
    is limited to an HMC change).
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

  • AIX 6100-09 - use RSCT APAR IV81777
    AIX 7100-03 - use RSCT APAR IV81777
    AIX 7100-04 - use RSCT APAR IV85983
    AIX 7200-00 - use RSCT APAR IV85983
    

APAR Information

  • APAR number

    IV85983

  • Reported component name

    RSCT FOR AIX

  • Reported component ID

    5765F07AP

  • Reported release

    321

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2016-06-20

  • Closed date

    2016-06-20

  • Last modified date

    2018-05-02

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

    IV81777

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

Fix information

  • Fixed component name

    RSCT FOR AIX

  • Fixed component ID

    5765F07AP

Applicable component levels

  • R321 PSY U879224

       UP18/05/02 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
02 May 2018