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Problem Report 2606 Details

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Report 2606 Actions

    Problem Report Number 2606
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.1353
    Raised 2015-04-18 00:14
    Updated 2015-04-20 11:35
    Published 2015-04-20 11:35
    Product Standard Internationalised System Calls and Libraries Extended V4 (UNIX V7)
    Certification Program The Open Brand certification program
    Test Suite VSX4 version 4.7.9NW
    Test Identification /tset/ANSI.os/streamio/perror/T.perror{9}
    Specification Base Specifications Issue 7
    Problem Summary Wrong pipe setup makes the test program time out in /tset/ANSI.os/streamio/perror/T.perror{9}
    Problem Text T.perror{9} finishes with UNRESOLVED results on Solaris 12 in UNIX10 mode.

    /vsx/src/vsx/SRC/common/tsetlib/do_ferr.c:
    325 if (type != 'r' || errnum == EAGAIN)
    326 {
    327 if (setnonblock(fd, TRUE) != 0)
    328 DBUG_RETURN(0);
    329 else
    330 PATH_TRACE;
    331 }
    332 else
    333 PATH_TRACE;
    334
    335 if (type != 'r')
    336 {
    337 while (write(fd, buf, BLK_SIZE) > 0)
    338 ;
    339 while (write(fd, "z", 1) > 0)
    340 ;
    341 errno = 0;
    342 if (errnum == EINTR && setnonblock(fd, FALSE) != 0)
    343 DBUG_RETURN(0);
    344 else
    345 PATH_TRACE;
    346 }

    This sets up a pipe and fills the buffer. Than it sets pipe to blocking mode.
    11462: pipe() = 0 [2]
    11462: fcntl(2, F_GETFL) = 2
    11462: fcntl(2, F_SETFL, FWRITE|FNONBLOCK) = 0
    11462: write(2, "".., 512) = 512
    ...
    11462: write(2, "".., 512) = 512
    11462: write(2, "".., 512) Err#11 EAGAIN
    11462: write(2, " z", 1) Err#11 EAGAIN
    11462: fcntl(2, F_GETFL) = 130
    11462: fcntl(2, F_SETFL, FWRITE) = 0

    Finally it issues perror() on the descriptor expecting EINTR. It gots
    SIGALRM:
    11464: alarm(25) = 0
    11462: waitid(P_PID, 11464, 0xFFFFFFFF7FFFE190, WEXITED|WTRAPPED)
    (sleeping...)
    11464: write(2, 0x100007FB8, 7) (sleeping...)
    11461: Received signal #14, SIGALRM, in waitid() [caught]
    Test Output child process timed out
    fgets() failed to read data from pipe - errno 11(EAGAIN)

    Review Information

    Review Type TSMA Review
    Start Date 2015-04-18 00:14
    Last Updated 2015-04-20 10:39
    Completed 2015-04-20 10:39
    Status Complete
    Review Recommendation Test Suite Deficiency (TSD)
    Review Response This failure is caused by a timing fault in the test (the child timeout
    is the same length as the alarm time intended to cause the EINTR error).
    Therefore this is accepted as a fault in the test suite.

    Review Type SA Review
    Start Date 2015-04-20 18:39
    Last Updated 2015-04-20 11:35
    Completed 2015-04-20 11:35
    Status Complete
    Review Resolution Test Suite Deficiency (TSD)
    Review Conclusion A test suite deficiency is granted.

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