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Problem Report 1110 Details

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This page provides all information on Problem Report 1110.

Report 1110 Actions

    Problem Report Number 1110
    Submitter's Classification Specification problem
    State Resolved
    Resolution Rejected (REJ)
    Problem Resolution ID REJ.X.0312
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published null
    Product Standard Internationalised System Calls and Libraries Extended V2 (UNIX 98)
    Certification Program The Open Brand certification program
    Test Suite VSU version 5.0.3
    Test Identification CAPIbase/mmap 41
    Problem Summary PG4U.00161 This request disagrees with the test logic.
    Problem Text
    In the above output, it shows that the tests are failing because mmap is
    failing, returning a errno of 6, which on our implementation is ENXIO.
    The tests are attempting to seek beyond the allowable maximum filesize.
    Page 528 of the XPG5 XSH states the following:

    "ERRORS
    The mmap() function will fail if:
    .
    .
    .
    [ENXIO] Addresses in the [off,off+len] are invalid for the object
    specified by fildes."

    Using a simliar argument as presented in PIN5.003 for lseek() and EINVAL,
    we believe that returning ENXIO is expected.
    Test Output

    ------- output from system running in 32 BIT mode -----------------

    TEST CASE: mmap

    TEST PURPOSE #41
    EOVERFLOW in errno and return MAP_FAILED on a call to
    void *mmap(void *addr, size_t len, int prot, int
    flags, int fildes, off_t off) when file is a regular
    file and the value of off plus len exceeds the offset
    maximum established in the open file description
    associated with fildes.
    PREP: Check for existence of programming environments
    PREP: Obtain off_t size in XBS5_ILP32_OFF32 environment
    PREP: Obtain off_t size in XBS5_ILP32_OFFBIG environment
    INFO: Execution environment for XBS5_LP64_OFF64 not supported
    INFO: Execution environment for XBS5_LPBIG_OFFBIG not supported
    TEST: Execute a program compiled in XBS5_ILP32_OFF32(32-bit off_t)
    environment that:
    opens a regular file for writing
    execs a program compiled in XBS5_ILP32_OFFBIG(64-bit off_t) environment,
    passing it the open file descriptor
    this program:
    verifies mmap returns -1 and sets errno to
    EOVERFLOW when off+len exceeds the offset maximum
    ERROR: In LFS program: errno set incorrectly. Expected: EOVERFLOW (127), Received: 6
    41 FAIL

    ------- output from system running in 64 BIT mode -----------------

    TEST CASE: mmap

    TEST PURPOSE #41
    EOVERFLOW in errno and return MAP_FAILED on a call to
    void *mmap(void *addr, size_t len, int prot, int
    flags, int fildes, off_t off) when file is a regular
    file and the value of off plus len exceeds the offset
    maximum established in the open file description
    associated with fildes.
    PREP: Check for existence of programming environments
    PREP: Obtain off_t size in XBS5_ILP32_OFF32 environment
    PREP: Obtain off_t size in XBS5_ILP32_OFFBIG environment
    PREP: Obtain off_t size in XBS5_LP64_OFF64 environment
    PREP: Obtain off_t size in XBS5_LPBIG_OFFBIG environment
    TEST: Execute a program compiled in XBS5_ILP32_OFF32(32-bit off_t)
    environment that:
    opens a regular file for writing
    execs a program compiled in XBS5_ILP32_OFFBIG(64-bit off_t) environment,
    passing it the open file descriptor
    this program:
    verifies mmap returns -1 and sets errno to
    EOVERFLOW when off+len exceeds the offset maximum
    ERROR: In LFS program: errno set incorrectly. Expected: EOVERFLOW (127), Received
    : 6
    TEST: Execute a program compiled in XBS5_ILP32_OFF32(32-bit off_t)
    environment that:
    opens a regular file for writing
    execs a program compiled in XBS5_LP64_OFF64(64-bit off_t) environment,
    passing it the open file descriptor
    this program:
    verifies mmap returns -1 and sets errno to
    EOVERFLOW when off+len exceeds the offset maximum
    ERROR: In LFS program: errno set incorrectly. Expected: EOVERFLOW (127), Received
    : 6
    TEST: Execute a program compiled in XBS5_ILP32_OFF32(32-bit off_t)
    environment that:
    opens a regular file for writing
    execs a program compiled in XBS5_LPBIG_OFFBIG(64-bit off_t) environment,
    passing it the open file descriptor
    this program:
    verifies mmap returns -1 and sets errno to
    EOVERFLOW when off+len exceeds the offset maximum
    ERROR: In LFS program: errno set incorrectly. Expected: EOVERFLOW (127), Received
    : 6

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    We recommend this request be refused.

    We believe this test is correct as written. Before calling mmap() the
    test sets RLIMIT_FSIZE beyond the small off_t such that the addresses
    used are valid for the file.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Rejected (REJ)
    Review Conclusion
    This request is refused. It appears to be a support request.

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