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Problem Report 1432 Details

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Report 1432 Actions

    Problem Report Number 1432
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.0714
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published 1996-01-22 08:00
    Product Standard Internationalised System Calls and Libraries Extended (UNIX 95)
    Certification Program The Open Brand certification program
    Test Suite VSU version 4.1.0
    Test Identification base/mmap 4 10
    Problem Summary TSD4U.00101 This test may fail because the test does not accomodate ETXTBSY conditions.
    Problem Text
    This test may fail because the test does not accomodate ETXTBSY
    conditions.

    Base WG resolution 1170/129 clarifies that ETXTBSY is a legitimate
    error code that can be returned for these interfaces.

    The mmap tp3 test has this same issue and is covered in by TSD4U.00038
    for VSU 4.0.2.
    Test Output
    TEST PURPOSE #4
    A successful call to void *mmap(void *addr, size_t
    len, int prot, int flags, int fildes, off_t off) when
    fildes is associated with a regular file, the
    MAP_PRIVATE flag is set in flags, and the PROT_EXEC
    flag is set in prot shall map len bytes at offset off
    in the file associated with fildes into the
    address space of the process, allow the mapped area to
    be executed, and return the location in the address
    space at which the mapping is made.
    PREP: Obtain the system page size by call to
    sysconf(_SC_PAGESIZE)
    PREP: Establish signal handlers for SIGSEGV and SIGBUS
    PREP: Open a file and initialize it
    PREP: Now set proper permissions and re-open file
    TEST: mmap() with MAP_PRIVATE returns the address
    where file is mapped
    ERROR: mmap failed, errno = 26(ETXTBSY - Text file busy)
    4 FAIL

    TEST PURPOSE #10
    A call to void *mmap(void *addr, size_t len, int prot,
    int flags, int fildes, off_t off) shall perform
    mapping operations on full pages and shall zero-fill any
    partial page at the end of a memory region.
    PREP: Obtain the system page size by call to
    sysconf(_SC_PAGESIZE)
    PREP: Establish signal handlers for SIGSEGV and SIGBUS
    PREP: Allocate memory for buffer
    PREP: Open a file
    PREP: Write a page of data to file
    TEST: Map half of page from file
    ERROR: mmap failed, errno = 26(ETXTBSY - Text file busy)
    10 FAIL

    TEST PURPOSE #3
    A successful call to int mprotect(void *addr, size_t
    len, int prot) when prot has the PROT_EXEC flag set
    shall change the access protections for the range
    [addr,addr+len] to allow the page(s) to be executed
    and return 0.
    PREP: Obtain the system page size by call to
    sysconf(_SC_PAGESIZE)
    PREP: Establish signal handlers for SIGSEGV and SIGBUS
    PREP: Open a file and initialize it
    PREP: Now set proper permissions and re-open file
    PREP: Map a page, writeable
    TEST: Mprotect((void *)addr,len,PROT_EXEC) returns 0
    ERROR: Call to mprotect did not return 0
    ERROR: mprotect failed, errno = 26(ETXTBSY - Text file busy)
    3 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(s) 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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