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IV59384: CAA SYSTEM CRASH DUE TO DMS TIMEOUT IF INTERFACE IS DETACHED APPLIES TO AIX 6100-08

A fix is available

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APAR status

  • Closed as program error.

Error description

  • CAA node crashed dumping a core with the following stack
    trace:
    
    (2)> f
    pvthread+001600 STACK:
    [0006E3C4].panic_trap+000000 ()
    [00014E48].kernel_add_gate+000048 ()
    [F1000000C04A9034]dms_trap+000014 ()
    [00014E48].kernel_add_gate+000048 ()
    [000BD0CC]itmr_timeout+00004C ()
    [F1000000C04A8BF4]dms_timeout+0000B4 (??, ??, ??)
    [F1000000C04A90B4]dms_handler+000034 (??)
    [00014D70].hkey_legacy_gate+00004C ()
    [032550EC]skey_kmode+000000 ()
    [00254D4C].dec_itmr_check_fixup+000014 ()
    
    System error log reported KERNEL_PANIC with the panic
    string "Deadman timer triggered".
    
    The syslog.caa log reported the AHAFS event of the
    ADAPTER_DEL type immediately before the node crash.
    
    The crash will occur very soon after detaching with
    the ifconfig command any interface having no IP address
    configured and marked with an asterisk in a 'netstat -i'
    display.
    

Local fix

  • There is no workaround to the problem.
    There is a suggestion to avoid operations that would
    reproduce the issue.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:
    * Systems running the 6100-08 Technology Level with
    * bos.cluster.rte at or between 6.1.8.0 and 6.1.8.18
    ****************************************************************
    * PROBLEM DESCRIPTION:
    * CAA node crashed dumping a core with the following stack
    * trace:
    * (2)> f
    * pvthread+001600 STACK:
    *  0006E3C4 .panic_trap+000000 ()
    *  00014E48 .kernel_add_gate+000048 ()
    *  F1000000C04A9034 dms_trap+000014 ()
    *  00014E48 .kernel_add_gate+000048 ()
    *  000BD0CC itmr_timeout+00004C ()
    *  F1000000C04A8BF4 dms_timeout+0000B4 (??, ??, ??)
    *  F1000000C04A90B4 dms_handler+000034 (??)
    *  00014D70 .hkey_legacy_gate+00004C ()
    *  032550EC skey_kmode+000000 ()
    *  00254D4C .dec_itmr_check_fixup+000014 ()
    * System error log reported KERNEL_PANIC with the panic
    * string "Deadman timer triggered".
    * The syslog.caa log reported the AHAFS event of the
    * ADAPTER_DEL type immediately before the node crash.
    * The crash will occur very soon after detaching with
    * the ifconfig command any interface having no IP address
    * configured and marked with an asterisk in a 'netstat -i'
    * display.
    ****************************************************************
    * RECOMMENDATION:
    * Install APAR IV59384.
    ****************************************************************
    

Problem conclusion

  • Do not set the number of interfaces to zero if just detaching
    one interface.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV59384
    6100-09 - use AIX APAR IV59532
    6100-09 - use AIX APAR IV59532
    7100-02 - use AIX APAR IV62004
    7100-03 - use AIX APAR IV59761
    7100-04 - use AIX APAR IV59683
    

APAR Information

  • APAR number

    IV59384

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-04-17

  • Closed date

    2014-04-18

  • Last modified date

    2016-05-10

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

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

    012AC3Ÿ IV59532 IV59683 IV59761 IV62004 006PC1Ÿ

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U867353

       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 #: IV59384

Modified date: 10 May 2016