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Problem Report 1313 Details

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Report 1313 Actions

    Problem Report Number 1313
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.0595
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published 1998-04-23 08:00
    Product Standard Internationalised System Calls and Libraries Extended V2 (UNIX 98)
    Certification Program The Open Brand certification program
    Test Suite VSU version 5.0.2
    Test Identification Base/mmap 42
    Problem Summary TSD4U.00223 This test may fail due to pointer arithmetic promotions. Corrected in the VSU502A patch
    Problem Text
    Constructs of the form adr3+n*pgsz are producing the wrong results as
    the compiler is promoting the pgsz operand to an int * before the addition,
    thus it is becoming sizeof(int) times too large. The fix is to use
    ipgsz instead.
    Test Output
    TEST CASE: mmap

    TEST PURPOSE #42
    The mapping established by a call to void *mmap(void
    *addr, size_t len, int prot, int flags, int fildes,
    off_t off) shall replace any previous mappings for
    those whole pages containing any part of the address
    space of the process starting at pa and continuing for
    len bytes.
    PREP: Obtain the system page size by call to
    sysconf(_SC_PAGESIZE)
    PREP: Establish signal handlers
    PREP: Create the file ../tmp/mmap42.file.1
    PREP: Allocate memory for buffer
    PREP: Write 10240 words with value 11 to the file
    PREP: Create the file ../tmp/mmap42.file.2
    PREP: Allocate memory for buffer
    PREP: Write 1024 words with value 22 to the file
    PREP: Create the file ../tmp/mmap42.file.3
    PREP: Allocate memory for buffer
    PREP: Write 4096 words with value 33 to the file
    PREP: Map file1 in the process address space
    PREP: Verify contents of the mapped area
    PREP: Map file2 such that it overlaps mapping of file1
    PREP: Map file3 such that it overlaps mapping of file1
    TEST: New mapping replace the contents of previous mapping
    TEST: New mapping zero fills partial page at the end of file
    TEST: New mappings replace the previous accesses
    INFO: Write to a write protected mapped page of file3
    TEST: Write references to the mapped area changes
    the new file.
    INFO: Write to the mapped area
    INFO: read from the file
    TEST: Write references to the mapped area do not
    change the previously mapped file.
    INFO: read from the file
    CLEANUP: Unmap segments & close files
    ERROR: Test took longer than 600 seconds: presuming
    function is hung and terminating test
    42 FAIL

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    We agree this is a test suite deficiency in the test suite version listed.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Test Suite Deficiency (TSD)
    Review Conclusion
    This is an agreed Test Suite Deficiency.

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