[Ci-reports] fail on QtBase_stable_Integration #3825

[Qt Continuous Integration System]

Autotest `tst_qthreadpool' failed :(

  Testing tst_QThreadPool
  FAIL!  : tst_QThreadPool::expiryTimeoutRace() 'task.semaphore.tryAcquire(numTasks, 10000)' returned FALSE. ()
  tst_qthreadpool.cpp(384) : failure location
  QtQA::App::TestRunner: Timed out after 450 seconds
  QtQA::App::TestRunner: test failed, running again to see if it is flaky...
  ********* Start testing of tst_QThreadPool *********
  Config: Using QtTest library 5.3.1, Qt 5.3.1
  PASS   : tst_QThreadPool::initTestCase()
  PASS   : tst_QThreadPool::runFunction()
  PASS   : tst_QThreadPool::createThreadRunFunction()
  PASS   : tst_QThreadPool::runMultiple()
  PASS   : tst_QThreadPool::waitcomplete()
  PASS   : tst_QThreadPool::runTask()
  PASS   : tst_QThreadPool::singleton()
  PASS   : tst_QThreadPool::destruction()
  PASS   : tst_QThreadPool::threadRecycling()
  PASS   : tst_QThreadPool::expiryTimeout()
  FAIL!  : tst_QThreadPool::expiryTimeoutRace() 'task.semaphore.tryAcquire(numTasks, 10000)' returned FALSE. ()
  tst_qthreadpool.cpp(384) : failure location
  QtQA::App::TestRunner: Timed out after 450 seconds
  QtQA::App::TestRunner: test failure could be reproduced twice consecutively
  QtQA::App::TestRunner: end tst_qthreadpool: 902 seconds, exit code 293

  Build log: http://testresults.qt-project.org/ci/QtBase_stable_Integration/build_03825/win32-msvc2010_developer-build_qtnamespace_Windows_7/log.txt.gz

  Tested changes (refs/builds/stable_1399889909):
    http://codereview.qt-project.org/85037 [PS1] - Direct2D QPA: Choose linear interpolation for smooth pixmap transform
    http://codereview.qt-project.org/84915 [PS1] - Direct2D QPA: Never queue more than one frame