IBM Support

IV91004: CRASH IN VIOENT_INIT_LS_TIMER WHEN POLL_UPLINK=YES 16/12/29 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
    * devices.vdevice.IBM.l-lan.rte at the 6.1.9.200 level.
    **************************************************************
    * PROBLEM DESCRIPTION:
    * On VIO client LPARs using virtual ethernet, if the
    * poll_uplink attribute is set to 'yes' for any virtual
    * ethernet adapter device, the system may crash during reboot
    * after updating to the affected Service Packs listed below.
    *
    * The device attribute can be verified with:
    * # lsattr -El entX -a poll_uplink
    *
    * Please apply the fixes below if updating to the affected
    * Service Packs, before rebooting, to avoid the crash
    * on boot.
    *
    * The crash will show information similar to:
    * Illegal Trap Instruction Interrupt in Kernel
    * vioent_init_ls_timer+000000 tdllti r31,200
    *
    * If this crash is experienced, the system can be recovered
    * by temporarily removing the virtual ethernet device(s) from
    * the LPAR profile and rebooting.  Then the attribute can be
    * unset and the system reactivated with the original profile.
    *
    * The device attribute can be changed with:
    * # chdev -l entX -a poll_uplink=no
    **************************************************************
    * RECOMMENDATION:
    * Install APAR IV91004.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/iv91004/
    * https://aix.software.ibm.com/aix/ifixes/iv91004/
    * Installation of the ifix requires a reboot.
    **************************************************************
    

Local fix

  • If this crash is experienced, the system can be recovered
    by temporarily removing the virtual ethernet device(s) from
    the LPAR profile and rebooting.  Then the attribute can be
    unset  and the system reactivated with the original profile.
    .
    The device attribute can be changed with:
    # chdev -l entX -a poll_uplink=no
    

Problem summary

  • A compiler option is used with the vioentdd driver to
    instrument a number of runtime checks.  These checks
    are hit regularly by vioent_init_ls_timer(), which is
    executed when poll_uplink=yes.
    

Problem conclusion

  • For now remove the compiler option to avoid the asserts.
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    IV91004

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    YesHIPER

  • Submitted date

    2016-11-24

  • Closed date

    2016-11-25

  • Last modified date

    2017-10-17

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

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

    IV91019 IV91020 IV91028 IV91029 U875424 U875427 U875430 U875436
    U875439

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U870044

       UP17/10/17 I 1000 «

PTF to Fileset Mapping

[{"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