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Problem Report 2719 Details

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Report 2719 Actions

    Problem Report Number 2719
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.1423
    Raised 2020-07-14 19:01
    Updated 2020-08-11 14:12
    Published 2020-08-11 14:12
    Product Standard Internationalised System Calls and Libraries Extended V4 (UNIX V7)
    Certification Program The Open Brand certification program
    Test Suite VSU version 5.3.19
    Test Identification /tset/CAPI.os/sockets/listen/T.listen{4}
    Specification Base Specifications Issue 7
    Problem Summary The error "Connection refused" in the VSU test is caused by temporary
    resource exhaustion
    Problem Text The child terminates with ERROR: Call to connect # 413 failed, errno = 79
    (ECONNREFUSED - Connection refused). This is because the parent makes the
    maximum number of connections as fast as it can and the child cannot keep
    up. Adding a delay of 0.1 seconds between the connect() calls cures the
    problem.
    Test Output /tset/CAPI.os/sockets/listen/T.listen{4}
    10|0 /tset/CAPI.os/sockets/listen/T.listen 07:07:48|TC Start, scenario
    ref 1-0, ICs: {4}
    15|0 3.6-lite 1|TCM Start
    400|0 4 1 07:07:48|IC Start
    200|0 4 07:07:48|TP Start
    520|0 4 0004522298 1 1|PREP: Get VSU_LISTEN_LIMIT configuration variable
    520|0 4 0004522298 1 2|INFO: VSU_LISTEN_LIMIT = 1024
    520|0 4 0004522298 1 3|PREP: Get VSU_CONNECT_TIMEOUT configuration
    variable
    520|0 4 0004522298 1 4|PREP: Determine OPEN_MAX
    520|0 4 0004522298 1 5|TEST: AF_INET SOCK_STREAM
    520|0 4 0004522298 1 6|PREP: Create test sockaddr_in: address =
    9.47.68.224, port = 4661
    520|0 4 0004522298 2 1|PREP: Create LISTEN_LIMIT+1 sockets
    520|0 4 0004522298 2 2|PREP: Wait for child to be ready
    520|0 4 0004522298 2 3|PREP: Connect LISTEN_LIMIT times to fill queue
    520|0 4 0004522298 2 4|TEST: Next connect is rejected
    520|0 4 0004522298 2 5|TEST: Return value and errno
    520|0 4 0004522298 2 6|CLEANUP: Close sockets, kill child
    520|0 4 0004522298 2 7|TEST: AF_UNIX SOCK_STREAM
    520|0 4 0004522298 2 8|PREP: Create test sockaddr_un: path =
    ../tmp/unix.OQrqea
    520|0 4 00010551664 1 1|PREP: Child: create socket
    520|0 4 00010551664 1 2|PREP: Child: bind to socket
    520|0 4 00010551664 1 3|PREP: Child: listen on socket with backlog of
    LISTEN_LIMIT+10
    520|0 4 00010551664 1 4|PREP: Child: tell parent ready
    520|0 4 00010551664 1 5|PREP: Child: wait for parent to complete test
    520|0 4 00010551664 1 6|CLEANUP: Child: close socket
    520|0 4 00010551666 1 1|PREP: Child: create socket
    520|0 4 00010551666 1 2|PREP: Child: bind to socket
    520|0 4 00010551666 1 3|PREP: Child: listen on socket with backlog of
    LISTEN_LIMIT+10
    520|0 4 00010551666 1 4|PREP: Child: tell parent ready
    520|0 4 00010551666 1 5|PREP: Child: wait for parent to complete test
    520|0 4 0004522298 3 1|PREP: Create LISTEN_LIMIT+1 sockets
    520|0 4 0004522298 3 2|PREP: Wait for child to be ready
    520|0 4 0004522298 3 3|PREP: Connect LISTEN_LIMIT times to fill queue
    520|0 4 0004522298 3 4|ERROR: Call to connect # 413 failed, errno = 79
    (ECONNREFUSED - Connection refused)
    220|0 4 2 07:09:03|UNRESOLVED
    410|0 4 1 07:09:03|IC End
    80|0 0 07:09:05|TC End, scenario ref 1-0
    900|07:09:05|TCC End

    Review Information

    Review Type TSMA Review
    Start Date 2020-07-14 19:01
    Last Updated 2020-08-11 11:49
    Completed 2020-08-11 11:49
    Status Complete
    Review Recommendation Test Suite Deficiency (TSD)
    Review Response This is accepted as a fault in the test suite.

    The test is supposed to be a conformance test, not a stress test, so
    adding the suggested delay between connect() calls seems appropriate and
    the change will be made in the next VSU release.

    Review Type SA Review
    Start Date 2020-08-11 19:49
    Last Updated 2020-08-11 14:11
    Completed 2020-08-11 14:11
    Status Complete
    Review Resolution Test Suite Deficiency (TSD)
    Review Conclusion A test suite deficiency is granted.

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