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IV04749: DBX 'STOP' COMMAND FAILS FOR VERY LARGE EXECUTABLE APPLIES TO AIX 5300-12

A fix is available

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APAR status

  • Closed as program error.

Error description

  • When debugging a very large (>2GB) executable, dbx may
    give an unreadable instruction error when trying to
    stop inside a certain function; the address it is
    attempting to stop at is much different than the
    actual address of the function.
    Example:
    
    (dbx) stop in main
    Unreadable instruction at address 0x23700042eb
    (dbx) print &main
    0x80000758
    
    It is possible that this bug could cause other errors
    or odd behavior with dbx - it is not necessarily
    specific to the error shown above.
    

Local fix

Problem summary

  • DBX 'STOP' COMMAND FAILS FOR VERY LARGE EXECUTABLE
    
    When debugging a very large (>2GB) executable, dbx may
    give an unreadable instruction error when trying to
    stop inside a certain function; the address it is
    attempting to stop at is much different than the
    actual address of the function.
    

Problem conclusion

  • Modified structure members to correctly handle this.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV04749

  • Reported component name

    AIX 5.3

  • Reported component ID

    5765G0300

  • Reported release

    530

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2011-08-08

  • Closed date

    2011-08-08

  • Last modified date

    2013-02-21

Fix information

  • Fixed component name

    AIX 5.3

  • Fixed component ID

    5765G0300

Applicable component levels

  • R530 PSY U844698

       UP11/10/10 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
21 February 2013