191278 2018-11-05 13:31:31 -0800 Layout Test imported/w3c/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html is flaky 2018-11-06 07:47:28 -0800 1 1 1 Unclassified WebKit WebRTC Other Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 191299 1 ryanhaddad youennf ap commit-queue eric.carlson ews-watchlist jlewis3 tsavell webkit-bug-importer youennf oldest_to_newest 1475247 0 ryanhaddad 2018-11-05 13:31:31 -0800 The following layout test is flaky on macOS and iOS: imported/w3c/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html Probable cause: This test has been flaky since it was imported with https://trac.webkit.org/changeset/237773/webkit. Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fwebrtc%2FRTCPeerConnection-setRemoteDescription-tracks.https.html Here is the text diff which shows an unexpected "PASS" message: --- /Volumes/Data/slave/sierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https-expected.txt +++ /Volumes/Data/slave/sierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-tracks.https-actual.txt @@ -4,7 +4,7 @@ PASS addTrack() with a track and no stream makes ontrack fire with a track and no stream. PASS addTrack() with a track and a stream makes ontrack fire with a track and a stream. PASS ontrack fires before setRemoteDescription resolves. -FAIL addTrack() with two tracks and one stream makes ontrack fire twice with the tracks and shared stream. assert_array_equals: The remote stream == [first track, second track]. property 0, expected object "[object MediaStreamTrack]" but got object "[object MediaStreamTrack]" +PASS addTrack() with two tracks and one stream makes ontrack fire twice with the tracks and shared stream. PASS addTrack() for an existing stream makes stream.onaddtrack fire. PASS stream.onaddtrack fires before setRemoteDescription resolves. PASS addTrack() with a track and two streams makes ontrack fire with a track and two streams. 1475248 1 ryanhaddad 2018-11-05 13:33:38 -0800 This test also seems to be a flaky crash, as seen on this run: https://build.webkit.org/results/Apple%20High%20Sierra%20Release%20WK2%20(Tests)/r237778%20(7615)/results.html Thread 20 Crashed:: com.apple.audio.IOThread.client 0 com.apple.WebCore 0x0000000109ede9a8 WebCore::AudioSampleDataSource::pushSamplesInternal(AudioBufferList const&, WTF::MediaTime const&, unsigned long) + 104 (AudioSampleDataSource.mm:154) 1 com.apple.WebCore 0x000000010afc5da0 WebCore::RealtimeOutgoingAudioSourceCocoa::audioSamplesAvailable(WTF::MediaTime const&, WebCore::PlatformAudioData const&, WebCore::AudioStreamDescription const&, unsigned long) + 784 (RealtimeOutgoingAudioSourceCocoa.cpp:109) 2 com.apple.WebCore 0x000000010afa6707 WebCore::MediaStreamTrackPrivate::forEachObserver(WTF::Function<void (WebCore::MediaStreamTrackPrivate::Observer&)> const&) const + 711 (Atomics.h:247) 3 com.apple.WebCore 0x000000010afa6ebf WebCore::MediaStreamTrackPrivate::audioSamplesAvailable(WTF::MediaTime const&, WebCore::PlatformAudioData const&, WebCore::AudioStreamDescription const&, unsigned long) + 191 (MediaStreamTrackPrivate.cpp:249) 4 com.apple.WebCore 0x000000010afa9cc7 WebCore::RealtimeMediaSource::forEachObserver(WTF::Function<void (WebCore::RealtimeMediaSource::Observer&)> const&) const + 711 (Atomics.h:247) 5 com.apple.WebCore 0x000000010afa9f7c WebCore::RealtimeMediaSource::audioSamplesAvailable(WTF::MediaTime const&, WebCore::PlatformAudioData const&, WebCore::AudioStreamDescription const&, unsigned long) + 92 (RealtimeMediaSource.cpp:170) 6 com.apple.WebCore 0x0000000109de7c53 WebCore::MediaStreamAudioSource::consumeAudio(WebCore::AudioBus&, unsigned long) + 419 (MediaStreamAudioSourceCocoa.cpp:86) 7 com.apple.WebCore 0x000000010a639f1b WebCore::AudioDestinationNode::render(WebCore::AudioBus*, WebCore::AudioBus*, unsigned long) + 395 (AudioDestinationNode.cpp:93) 8 com.apple.WebCore 0x000000010aeb7bf2 WebCore::AudioDestinationMac::render(unsigned int, AudioBufferList*) + 82 (DumbPtrTraits.h:41) 9 com.apple.WebCore 0x000000010aeb7b0f WebCore::AudioDestinationMac::inputProc(void*, unsigned int*, AudioTimeStamp const*, unsigned int, unsigned int, AudioBufferList*) + 15 (AudioDestinationMac.cpp:190) 10 com.apple.audio.units.Components 0x000000046a226da9 AUInputElement::PullInput(unsigned int&, AudioTimeStamp const&, unsigned int, unsigned int) + 185 11 com.apple.audio.units.Components 0x000000046a103f97 AUInputFormatConverter2::InputProc(OpaqueAudioConverter*, unsigned int*, AudioBufferList*, AudioStreamPacketDescription**, void*) + 199 12 com.apple.audio.toolbox.AudioToolbox 0x00007fff34080257 AudioConverterChain::CallInputProc(unsigned int) + 613 13 com.apple.audio.toolbox.AudioToolbox 0x00007fff3407ff0d AudioConverterChain::FillBufferFromInputProc(unsigned int*, CABufferList*) + 127 14 com.apple.audio.toolbox.AudioToolbox 0x00007fff3407fe6f BufferedAudioConverter::GetInputBytes(unsigned int, unsigned int&, CABufferList const*&) + 207 15 com.apple.audio.toolbox.AudioToolbox 0x00007fff3407fc71 CBRConverter::RenderOutput(CABufferList*, unsigned int, unsigned int&, AudioStreamPacketDescription*) + 107 16 com.apple.audio.toolbox.AudioToolbox 0x00007fff3407298a BufferedAudioConverter::FillBuffer(unsigned int&, AudioBufferList&, AudioStreamPacketDescription*) + 346 17 com.apple.audio.toolbox.AudioToolbox 0x00007fff34072cda AudioConverterChain::RenderOutput(CABufferList*, unsigned int, unsigned int&, AudioStreamPacketDescription*) + 106 18 com.apple.audio.toolbox.AudioToolbox 0x00007fff3407298a BufferedAudioConverter::FillBuffer(unsigned int&, AudioBufferList&, AudioStreamPacketDescription*) + 346 19 com.apple.audio.toolbox.AudioToolbox 0x00007fff3407231f AudioConverterFillComplexBuffer + 1076 20 com.apple.audio.units.Components 0x000000046a1036cb AUInputFormatConverter2::PullAndConvertInput(AudioTimeStamp const&, unsigned int&, AudioBufferList&, AudioStreamPacketDescription*, bool&) + 107 21 com.apple.audio.units.Components 0x000000046a10350c AUConverterBase::RenderBus(unsigned int&, AudioTimeStamp const&, unsigned int, unsigned int) + 572 22 com.apple.audio.units.Components 0x000000046a22dca4 AUBase::DoRenderBus(unsigned int&, AudioTimeStamp const&, unsigned int, AUOutputElement*, unsigned int, AudioBufferList&) + 166 23 com.apple.audio.units.Components 0x000000046a22d37a AUBase::DoRender(unsigned int&, AudioTimeStamp const&, unsigned int, unsigned int, AudioBufferList&) + 546 24 com.apple.audio.units.Components 0x000000046a106d44 AUHAL::AUIOProc(unsigned int, AudioTimeStamp const*, AudioBufferList const*, AudioTimeStamp const*, AudioBufferList*, AudioTimeStamp const*, void*) + 1726 25 com.apple.audio.CoreAudio 0x00007fff35136885 HALC_ProxyIOContext::IOWorkLoop() + 5021 26 com.apple.audio.CoreAudio 0x00007fff3513531c HALC_ProxyIOContext::IOThreadEntry(void*) + 128 27 com.apple.audio.CoreAudio 0x00007fff3513505e HALB_IOThread::Entry(void*) + 72 28 libsystem_pthread.dylib 0x00007fff5dda8661 _pthread_body + 340 29 libsystem_pthread.dylib 0x00007fff5dda850d _pthread_start + 377 30 libsystem_pthread.dylib 0x00007fff5dda7bf9 thread_start + 13 1475296 2 ryanhaddad 2018-11-05 15:11:51 -0800 Marked test as a flaky failure in https://trac.webkit.org/r237832 1475394 3 youennf 2018-11-05 19:49:37 -0800 This is a bug in the test. Filed https://github.com/web-platform-tests/wpt/pull/13940 1475458 4 353953 youennf 2018-11-06 01:49:55 -0800 Created attachment 353953 Patch 1475529 5 353953 commit-queue 2018-11-06 07:46:22 -0800 Comment on attachment 353953 Patch Clearing flags on attachment: 353953 Committed r237864: <https://trac.webkit.org/changeset/237864> 1475530 6 commit-queue 2018-11-06 07:46:24 -0800 All reviewed patches have been landed. Closing bug. 1475531 7 webkit-bug-importer 2018-11-06 07:47:28 -0800 <rdar://problem/45842896> 353953 2018-11-06 01:49:55 -0800 2018-11-06 07:46:22 -0800 Patch bug-191278-20181106165001.patch text/plain 5595 youennf U3VidmVyc2lvbiBSZXZpc2lvbjogMjM3ODM3CmRpZmYgLS1naXQgYS9MYXlvdXRUZXN0cy9DaGFu Z2VMb2cgYi9MYXlvdXRUZXN0cy9DaGFuZ2VMb2cKaW5kZXggMWI1NjNjZGM5NTliYWE0MWMwYjA2 MzgxMTIxZmM5YmExNzNkNjlhMS4uMWFiMDBhYTQxZGYyYTgyZThjZjY4MGUzZWM1Nzg1YmY2ODk2 YTU5OCAxMDA2NDQKLS0tIGEvTGF5b3V0VGVzdHMvQ2hhbmdlTG9nCisrKyBiL0xheW91dFRlc3Rz L0NoYW5nZUxvZwpAQCAtMSwzICsxLDEyIEBACisyMDE4LTExLTA2ICBZb3Vlbm4gRmFibGV0ICA8 eW91ZW5uQGFwcGxlLmNvbT4KKworICAgICAgICBMYXlvdXQgVGVzdCBpbXBvcnRlZC93M2Mvd2Vi LXBsYXRmb3JtLXRlc3RzL3dlYnJ0Yy9SVENQZWVyQ29ubmVjdGlvbi1zZXRSZW1vdGVEZXNjcmlw dGlvbi10cmFja3MuaHR0cHMuaHRtbCBpcyBmbGFreQorICAgICAgICBodHRwczovL2J1Z3Mud2Vi a2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MTkxMjc4CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9C T0RZIChPT1BTISkuCisKKyAgICAgICAgKiBUZXN0RXhwZWN0YXRpb25zOgorCiAyMDE4LTExLTA2 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