IBM Support

IV93840: PROBLEMS CAN OCCUR WITH THREAD_CPUTIME AND THREAD_CPUTIME_FAST APPLIES TO AIX 6100-09 17/04/14 PTF PECHANGE

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • ***************************************************************
    * USERS AFFECTED:
    * Systems running the AIX 6100-09 Technology Level
    * with bos.mp64 at the 6.1.9.200 level.
    ***************************************************************
    * ERROR DESCRIPTION:
    * In the latest AIX Service Packs, using the thread_cputime or
    * thread_cputime_fast interfaces can cause
    * invalid data in the floating point and vector registers.
    *
    * This has been primarily seen to affect Oracle 11gR2 (11.2.0.3
    * and 11.2.0.4), which use this interface.
    * Multiple errors have been seen in these Oracle 11gR2 releases
    * as a result of this issue, including:
    * - ORA 600 errors
    * - oracle process core dump
    * - errors in redo logs and check sum errors in other blocks
    ***************************************************************
    * RECOMMENDATION:
    * Install APAR IV93840.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/iv93840/
    * https://aix.software.ibm.com/aix/ifixes/iv93840/
    * Installation of the ifix requires a reboot.
    ***************************************************************
    

Local fix

Problem summary

  • The thread_cputime or thread_cputime_fast interfaces can
    cause invalid data in the FP/VMX/VSX registers if the thread
    page faults in this function.
    

Problem conclusion

  • Remove potential for page fault.
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    IV93840

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    YesHIPER

  • Submitted date

    2017-03-01

  • Closed date

    2017-03-01

  • Last modified date

    2017-04-14

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

    IV93763

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

    U876518

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U876518

       UP17/04/14 I 1000 «

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAUMY","label":"IBM AIX Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11R","label":"APARs - AIX 7.1 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Document Information

Modified date:
17 December 2021