IBM Support

IV95824: GETADDRINFO CAN COREDUMP WITH SEGV WHEN USING MALLOC POOL APPLIES TO AIX 7200-01

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • when using MALLOCOPTIONS=pool and /etc/netsvc.conf
    doesn't
    specify an hosts preference, 64 bits applications might
    coredump in :
    calloc_pool@AF111_41(??, ??, ??, ??, ??) at
    0x90000000002e7c4
    calloc(??, ??) at 0x90000000002df08
    getaddrinfo(??, ??, ??, ??) at 0x900000000133ef4
    main(), line 13 in "test_getaddrinfo.c"
    
    This was mainly seen with DataFlowEngine process but can
    be seen with others.
    

Local fix

  • Specify hosts resolution order in /etc/netsvc.conf so
    that IPV4 resolve
    first I.E :
    hosts=local4,bind4
    

Problem summary

  • getaddrinfo subroutine may coredump with SEGV when using
    malloc pool option.
    

Problem conclusion

  • Code has been changed to correct the coredump scenario.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV95824

  • Reported component name

    AIX V7.2

  • Reported component ID

    5765CD200

  • Reported release

    720

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2017-05-04

  • Closed date

    2017-06-05

  • Last modified date

    2017-10-05

Fix information

  • Fixed component name

    AIX V7.2

  • Fixed component ID

    5765CD200

Applicable component levels

  • R720 PSY U878395

       UP17/10/05 I 1000

[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11S","label":"APARs - AIX 7.2 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
05 October 2017