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IZ64642: FTPD MISINTERPRETS SIZE LIMIT GREATER THAN OR EQUAL TO 4GB BYTES APPLIES TO AIX 6100-04

A fix is available

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APAR status

  • Closed as program error.

Error description

  • If a user's fsize setting (as shown by "ulimit -f")
    is greater than 8388607 (blocks) than the effective limit
    on files created by ftpd for that user will be an
    apparently random number from 512 bytes to (4G-512)
    bytes.
    
    [The effective limit value, in blocks, will actually
    be the remainder from the division (fsize/8388608)]
    

Local fix

  • Issue can be circumvented by using an unlimited size
        fsize=-1
    or file sizes less than 4GB-512 bytes i.e.
    no values greater than
        fsize=8388607
    using a command like
        chuser -a fsize=8388607 USERNAME
    
    with the lsuser command available to look up
    and verify, e.g.
        lsuser -a fsize ALL
    

Problem summary

  • Failure in ftp data file transfer
    200 PORT command successful.
    150 Opening data connection for test.file.
    452 Error writing file: File too large
    204800 bytes sent in 0.001218 seconds (1.642e+05 Kbytes/s)
    local: test.file remote: test.file
    

Problem conclusion

  • Code changes have been done to take care of data type cast
    while calculating the limit values
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ64642

  • Reported component name

    AIX 610

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2009-11-05

  • Closed date

    2009-11-05

  • Last modified date

    2013-03-28

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

    IZ56160

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

Fix information

  • Fixed component name

    AIX 610

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U828116

       UP10/01/12 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
28 March 2013