tst_QAudioInput::pull(), pullSuspendResume(), push() fails on linux

/home/qt/work/qt/qtmultimedia/tests/auto/integration/qaudioinput/target_wrapper.sh  ./tst_qaudioinput -o /home/qt/work/testresults/tests/auto/integration/qaudioinput298703930,xml -o -,txt
********* Start testing of tst_QAudioInput *********
Config: Using QtTest library 5.7.0, Qt 5.7.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 4.8.2)
PASS   : tst_QAudioInput::initTestCase()
PASS   : tst_QAudioInput::format()
PASS   : tst_QAudioInput::invalidFormat(Null Format)
PASS   : tst_QAudioInput::invalidFormat(Channel count 0)
PASS   : tst_QAudioInput::invalidFormat(Sample rate 0)
PASS   : tst_QAudioInput::invalidFormat(Sample size 0)
PASS   : tst_QAudioInput::bufferSize()
PASS   : tst_QAudioInput::notifyInterval()
PASS   : tst_QAudioInput::disableNotifyInterval()
PASS   : tst_QAudioInput::stopWhileStopped()
PASS   : tst_QAudioInput::suspendWhileStopped()
PASS   : tst_QAudioInput::resumeWhileStopped()
PASS   : tst_QAudioInput::pull(Audio File 0)
FAIL!  : tst_QAudioInput::pull(Audio File 1) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (849625))
   Loc: [tst_qaudioinput.cpp(491)]
FAIL!  : tst_QAudioInput::pull(Audio File 2) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (848888))
   Loc: [tst_qaudioinput.cpp(491)]
FAIL!  : tst_QAudioInput::pull(Audio File 3) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (823900))
   Loc: [tst_qaudioinput.cpp(491)]
FAIL!  : tst_QAudioInput::pull(Audio File 4) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (848843))
   Loc: [tst_qaudioinput.cpp(491)]
FAIL!  : tst_QAudioInput::pull(Audio File 5) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (849614))
   Loc: [tst_qaudioinput.cpp(491)]
FAIL!  : tst_QAudioInput::pull(Audio File 6) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (849625))
   Loc: [tst_qaudioinput.cpp(491)]
FAIL!  : tst_QAudioInput::pullSuspendResume(Audio File 0) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (924580))
   Loc: [tst_qaudioinput.cpp(589)]
FAIL!  : tst_QAudioInput::pullSuspendResume(Audio File 1) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (924625))
   Loc: [tst_qaudioinput.cpp(589)]
FAIL!  : tst_QAudioInput::pullSuspendResume(Audio File 2) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (948752))
   Loc: [tst_qaudioinput.cpp(589)]
FAIL!  : tst_QAudioInput::pullSuspendResume(Audio File 3) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (948707))
   Loc: [tst_qaudioinput.cpp(589)]
FAIL!  : tst_QAudioInput::pullSuspendResume(Audio File 4) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (948707))
   Loc: [tst_qaudioinput.cpp(589)]
FAIL!  : tst_QAudioInput::pullSuspendResume(Audio File 5) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (949569))
   Loc: [tst_qaudioinput.cpp(589)]
FAIL!  : tst_QAudioInput::pullSuspendResume(Audio File 6) 'qTolerantCompare(processedUs, 3040000LL)' returned FALSE. (processedUSecs() doesn't fall in acceptable range, should be 3040000 (949583))
   Loc: [tst_qaudioinput.cpp(589)]
PASS   : tst_QAudioInput::push(Audio File 0)
PASS   : tst_QAudioInput::push(Audio File 1)
PASS   : tst_QAudioInput::push(Audio File 2)
PASS   : tst_QAudioInput::push(Audio File 3)
PASS   : tst_QAudioInput::push(Audio File 4)
PASS   : tst_QAudioInput::push(Audio File 5)
PASS   : tst_QAudioInput::push(Audio File 6)
BPASS  : tst_QAudioInput::pushSuspendResume(Audio File 0)
BFAIL  : tst_QAudioInput::pushSuspendResume(Audio File 1) '(audioInput.bytesReady() >= audioInput.periodSize())' returned FALSE. ()
   Loc: [tst_qaudioinput.cpp(778)]
BPASS  : tst_QAudioInput::pushSuspendResume(Audio File 2)
BFAIL  : tst_QAudioInput::pushSuspendResume(Audio File 3) '(audioInput.bytesReady() >= audioInput.periodSize())' returned FALSE. ()
   Loc: [tst_qaudioinput.cpp(778)]
BFAIL  : tst_QAudioInput::pushSuspendResume(Audio File 4) '(audioInput.bytesReady() >= audioInput.periodSize())' returned FALSE. ()
   Loc: [tst_qaudioinput.cpp(778)]
BPASS  : tst_QAudioInput::pushSuspendResume(Audio File 5)
BFAIL  : tst_QAudioInput::pushSuspendResume(Audio File 6) '(audioInput.bytesReady() >= audioInput.periodSize())' returned FALSE. ()
   Loc: [tst_qaudioinput.cpp(778)]
PASS   : tst_QAudioInput::reset(Audio File 0)
PASS   : tst_QAudioInput::reset(Audio File 1)
PASS   : tst_QAudioInput::reset(Audio File 2)
PASS   : tst_QAudioInput::reset(Audio File 3)
PASS   : tst_QAudioInput::reset(Audio File 4)
PASS   : tst_QAudioInput::reset(Audio File 5)
PASS   : tst_QAudioInput::reset(Audio File 6)
PASS   : tst_QAudioInput::volume(Audio File 0)
PASS   : tst_QAudioInput::volume(Audio File 1)
PASS   : tst_QAudioInput::volume(Audio File 2)
PASS   : tst_QAudioInput::volume(Audio File 3)
PASS   : tst_QAudioInput::volume(Audio File 4)
PASS   : tst_QAudioInput::volume(Audio File 5)
PASS   : tst_QAudioInput::volume(Audio File 6)
PASS   : tst_QAudioInput::cleanupTestCase()
Totals: 35 passed, 13 failed, 0 skipped, 7 blacklisted, 182503ms
********* Finished testing of tst_QAudioInput *********