IBM Support

IV64423: CAA: SYSTEM CRASH IN AHA_THREAD_QUEUE APPLIES TO AIX 6100-08

A fix is available

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • System crash with following stack trace
    
    CPU 5 CSA F00000002FF47600 at time of crash, error code for
    LEDs: 70000000 pvthread+01A300 STACK:
    Ý00009958¨.simple_unlock_mem+000040 ()
    Ý004730FC¨aha_thread_queue+0000DC (??)
    Ý00472FE0¨aha_queue+000020 () Ý003C2AD8¨procentry+000038 (??,
    ??, ??, ??) Ýkdb_read_mem¨ no real storage @ FFFFFFFFFFF61A0
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:
    * Systems running the 6100-08 Technology Level with bos.mp64
    * at 6.1.8.18
    ****************************************************************
    * PROBLEM DESCRIPTION:
    * System crash with following stack trace
    * CPU 5 CSA F00000002FF47600 at time of crash, error code for
    * LEDs: 70000000 pvthread+01A300 STACK:
    *  00009958 .simple_unlock_mem+000040 ()
    *  004730FC aha_thread_queue+0000DC (??)
    *  00472FE0 aha_queue+000020 ()  003C2AD8 procentry+000038 (??,
    * ??, ??, ??)  kdb_read_mem  no real storage @ FFFFFFFFFFF61A0
    ****************************************************************
    * RECOMMENDATION:
    * Install APAR IV64423.
    ****************************************************************
    

Problem conclusion

  • The code is trying to unlock a simple_lock which has been
    already unlocked. The fix is to correct the logic.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV64423
    6100-09 - use AIX APAR IV63399
    7100-02 - use AIX APAR IV64243
    7100-03 - use AIX APAR IV63379
    

APAR Information

  • APAR number

    IV64423

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-09-02

  • Closed date

    2014-09-02

  • Last modified date

    2016-05-11

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

    IV63379

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

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U867355

       UP15/01/18 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Standard Edition

Software version: 610

Operating system(s): AIX

Reference #: IV64423

Modified date: 11 May 2016