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IV51459: SNMPMIBD OCASSIONALY CORE DUMPS ROUGHLY ONCE IN 10 SCANS. APPLIES TO AIX 7100-03

A fix is available

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APAR status

  • Closed as program error.

Error description

  • snmpmibd  occasionally core dumps  with this stack. This
    is
    is happening approximately  once  in about  10 MIB
    queries
    
    Segmentation fault in . at 0xe844
    0x000000000000e844 warning: Unable to access address
    0xe844 from core
    (dbx) where
    .() at 0xe844
    get_ifExtnsRcvAddrTable() at 0x1000698e8
    sd_get_ifExtnsRcvAddrEntry_tbl(??) at 0x10006a0d4
    get_ifExtnsRcvAddrEntry_tbl() at 0x1000660f0
    lookup_ifExtnsRcvAddrEntry_entry(??, ??) at 0x100065f80
    nxt_ifExtnsRcvAddrIfIndex(??, ??, ??, ??) at 0x10006717c
    call_function(??, ??) at 0x100001438
    main(??, ??, ??) at 0x100000a90
    

Local fix

Problem summary

  • snmpmibd occassionaly core dumps with below stack, in case of
    malloc failure.
    (dbx) where
    .() at 0xe844
    get_ifExtnsRcvAddrTable() at 0x1000698e8
    sd_get_ifExtnsRcvAddrEntry_tbl(??) at 0x10006a0d4
    get_ifExtnsRcvAddrEntry_tbl() at 0x1000660f0
    lookup_ifExtnsRcvAddrEntry_entry(??, ??) at 0x100065f80
    nxt_ifExtnsRcvAddrIfIndex(??, ??, ??, ??) at 0x10006717c
    call_function(??, ??) at 0x100001438
    main(??, ??, ??) at 0x100000a90
    (dbx)
    

Problem conclusion

  • Fix the code to handle null pointers.
    

Temporary fix

Comments

  • 5300-12 - use AIX APAR IV53144
    6100-07 - use AIX APAR IV50667
    6100-08 - use AIX APAR IV51492
    6100-09 - use AIX APAR IV51945
    6100-09 - use AIX APAR IV51945
    6100-09 - use AIX APAR IV51945
    7100-01 - use AIX APAR IV57626
    7100-02 - use AIX APAR IV57252
    7100-03 - use AIX APAR IV51459
    

APAR Information

  • APAR number

    IV51459

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2013-10-30

  • Closed date

    2013-10-30

  • Last modified date

    2014-08-14

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

    IV50667

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

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U859722

       UP14/05/22 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV51459

Modified date: 14 August 2014