196400 2019-03-29 10:32:24 -0700 [ Mac WK2 ] Layout Test fast/mediastream/MediaStreamTrack-getSettings.html is a flaky failure 2019-10-09 11:10:19 -0700 1 1 1 Unclassified WebKit WebRTC WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 sroberts eric.carlson ap cdumez commit-queue eric.carlson ews-watchlist glenn hta jer.noble lforschler philipj sergio tommyw webkit-bot-watchers-bugzilla webkit-bug-importer youennf oldest_to_newest 1522491 0 sroberts 2019-03-29 10:32:24 -0700 The following layout test is flaky on Mac WK2 Release and Debug fast/mediastream/MediaStreamTrack-getSettings.html Probable cause: Test has been flaky on the dashboard for the entire available history. After changes in https://trac.webkit.org/changeset/243094/webkit I was able to reproduce locally. Testing locally I got it to fail consistently up until r243094. Prior to 243092 it passes locally, but obviously it fails on the bots prior to the change. I don't know if the timing changes in 243094 have allowed the test to fail locally. Reproduced with: run-webkit-tests fast/mediastream/MediaStreamTrack-getSettings.html --iterations 3000 -fg Using -fg it has about a 15% failure rate locally. If I do it with just 1 child process and -g it fails about 2 in 3000 iterations. Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fast%2Fmediastream%2FMediaStreamTrack-getSettings.html Diff: --- /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/fast/mediastream/MediaStreamTrack-getSettings-expected.txt +++ /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/fast/mediastream/MediaStreamTrack-getSettings-actual.txt @@ -13,7 +13,7 @@ audio track settings: settings.deviceId = <UUID> settings.echoCancellation = false - settings.sampleRate = 44100 + settings.sampleRate = 0 settings.volume = 1 According to the spec: "[every setting] MUST be a member of the set defined for that property by getCapabilities()" 1522492 1 sroberts 2019-03-29 10:34:58 -0700 Adding Chris Dumez, incase the timing changes affected it at all. Adding Eric Carlson, as they created the test. 1522510 2 sroberts 2019-03-29 11:37:23 -0700 marked flaky in https://trac.webkit.org/changeset/243652/webkit while waiting for a fix. 1523824 3 webkit-bug-importer 2019-04-03 12:02:06 -0700 <rdar://problem/49567579> 1523825 4 cdumez 2019-04-03 12:04:48 -0700 https://trac.webkit.org/changeset/243094/webkit merely impacted timing. This is an example of a flaky test becoming flakier. 1523832 5 sroberts 2019-04-03 12:13:39 -0700 (In reply to Chris Dumez from comment #4) > https://trac.webkit.org/changeset/243094/webkit merely impacted timing. This > is an example of a flaky test becoming flakier. Correct, I was just pointing out after your revision I was able to reproduce it locally and more consistently. It has been flaky it's available history. I was not blaming you for general flaky behavior. 1577909 6 380456 eric.carlson 2019-10-08 13:18:38 -0700 Created attachment 380456 Patch 1578277 7 eric.carlson 2019-10-09 10:08:44 -0700 The mac-wk1 failure is unrelated. 1578305 8 380456 commit-queue 2019-10-09 11:10:17 -0700 Comment on attachment 380456 Patch Clearing flags on attachment: 380456 Committed r250918: <https://trac.webkit.org/changeset/250918> 1578306 9 commit-queue 2019-10-09 11:10:19 -0700 All reviewed patches have been landed. Closing bug. 380456 2019-10-08 13:18:38 -0700 2019-10-09 11:10:17 -0700 Patch bug-196400-20191008131837.patch text/plain 11207 eric.carlson U3VidmVyc2lvbiBSZXZpc2lvbjogMjUwNzcyCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggZTg2MmFjZGIyODdlYTlj YzU2MjUyMjBmMTgwYzczZDgzMTIyMjFhMi4uMWVhNzFiZDMzMGZmMDU1NzQ2MzA1NWQ1OGQ0OTU0 ZDBmZTdiNDFlMiAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDIzIEBACisyMDE5LTEwLTA4ICBFcmlj IENhcmxzb24gIDxlcmljLmNhcmxzb25AYXBwbGUuY29tPgorCisgICAgICAgIFsgTWFjIFdLMiBd IExheW91dCBUZXN0IGZhc3QvbWVkaWFzdHJlYW0vTWVkaWFTdHJlYW1UcmFjay1nZXRTZXR0aW5n cy5odG1sIGlzIGEgZmxha3kgZmFpbHVyZQorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9y Zy9zaG93X2J1Zy5jZ2k/aWQ9MTk2NDAwCisgICAgICAgIDxyZGFyOi8vcHJvYmxlbS80OTU2NzU3 OT4KKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBObyBu ZXcgdGVzdHMsIHRoaXMgZml4ZXMgYSBicm9rZW4gdGVzdC4KKworICAgICAgICAqIHBsYXRmb3Jt 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