IBM Support

IT19694: IBM MQ Appliance unexpectedly reboots

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

 

APAR status

  • Closed as program error.

Error description

  • The IBM MQ Appliance reboots unexpectedly
    
    Lines like the below are recorded in the MQAppliance error
    report.
    
    Thread 0x8877e119: WATCHDOG RESTART is detected.
    Thread 0x8877e119: Non-crash death_action: signum
    0x000000000000000c , si_code 0x00000000fffffffa, eip
    0x00007fa36fd6254f, si_addr 0x0000000000000000
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users for MQ Appliance.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    A coding error caused internal threads to be detected as hung.
    The MQ appliance rebooted to attempt to clear these hung
    threads.
    

Problem conclusion

  • The MQ Appliance code has been modified to address the hung
    thread.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.9
    v9.0 CD    9.0.5
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT19694

  • Reported component name

    IBM MQ APPL M20

  • Reported component ID

    5725S1400

  • Reported release

    901

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-03-15

  • Closed date

    2018-01-22

  • Last modified date

    2018-01-22

  • 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 MQ APPL M20

  • Fixed component ID

    5725S1400

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS5K6E","label":"IBM MQ Appliance"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"901","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
22 January 2018