208889 2020-03-10 15:31:54 -0700 REGRESSION: [ Mac wk2 ] fast/images/decode-render-animated-image.html is flaky failing 2020-03-11 10:28:24 -0700 1 1 1 Unclassified WebKit Images WebKit Nightly Build Mac macOS 10.15 NEW InRadar P2 Normal --- 1 Lawrence.j webkit-unassigned webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1628408 0 393183 Lawrence.j 2020-03-10 15:31:54 -0700 Created attachment 393183 decode-render-animated-image-diff fast/images/decode-render-animated-image.html Description: This test is flaky failing on Mac wk2. There appears to be a regression point at r257944. History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fimages%2Fdecode-render-animated-image.html&platform=mac Diff: https://build.webkit.org/results/Apple%20Mojave%20Release%20WK2%20(Tests)/r258226%20(11064)/fast/images/decode-render-animated-image-diffs.html 1628409 1 webkit-bug-importer 2020-03-10 15:32:16 -0700 <rdar://problem/60294431> 1628410 2 Lawrence.j 2020-03-10 15:39:27 -0700 I have marked this test as failing while this issue is investigated. https://trac.webkit.org/changeset/258234/webkit 1628499 3 ap 2020-03-10 20:35:30 -0700 This cannot be r257944, which didn't change any code. I see the first failure on internal bots with r257872, and one of the bots started to flaky time out with the first timeout on r257830. But this isn't frequent enough to positively blame. 1628695 4 Lawrence.j 2020-03-11 09:48:01 -0700 This issue appears to have regressed at r258002. I can reproduce this issue with r258259 and r258002 using the command below, but cannot reproduce the issue with r258002 or r257998. run-webkit-tests --iterations 1000 --exit-after-n-failures 3 --force -f —clobber-old-results fast/images/decode-render-animated-image.html r258259: [12/1000] fast/images/decode-render-animated-image.html failed unexpectedly (reference mismatch) [78/1000] fast/images/decode-render-animated-image.html failed unexpectedly (reference mismatch) 998 tests ran as expected, 2 didn't: r258002: [47/1000] fast/images/decode-render-animated-image.html failed unexpectedly (reference mismatch) 999 tests ran as expected, 1 didn't: r258001: All 1000 tests ran as expected. r257998: All 1000 tests ran as expected. 1628707 5 Lawrence.j 2020-03-11 10:07:11 -0700 It doesn't look like this commit could have caused the issue. I will keep testing. 393183 2020-03-10 15:31:54 -0700 2020-03-10 15:31:54 -0700 decode-render-animated-image-diff decode-render-animated-image-diff.png image/png 2508 Lawrence.j iVBORw0KGgoAAAANSUhEUgAAAyAAAAJYCAAAAAC/Hd2sAAAJk0lEQVR4Ae3TsQ2EABADQaD/mhER JSwS1pA8kV83xsfhIUCAAAECBAgQIECAAAECBAgQIECAAAECBAgQIECAAAECBAgQIECAAAECBAgQ IECAAAECBAgQIECAAAECBAgQIECAAAECBAgQIECAAAECBAgQIECAAAECBAgQIECAAAECBAgQIECA AAECBAgQIECAAAECBAgQIECAAAECBAgQIECAAAECBAgQIECAAAECBAgQIPCFwPn+yf2+hL9XmC2a QCHgmy1UZc4IGMhMlQ4pBAykUJU5I2AgM1U6pBAwkEJV5oyAgcxU6ZBCwEAKVZkzAgYyU6VDCgED KVRlzggYyEyVDikEDKRQlTkjYCAzVTqkEDCQQlXmjICBzFTpkELAQApVmTMCBjJTpUMKAQMpVGXO CBjITJUOKQQMpFCVOSNgIDNVOqQQMJBCVeaMgIHMVOmQQsBAClWZMwIGMlOlQwoBAylUZc4IGMhM lQ4pBAykUJU5I2AgM1U6pBAwkEJV5oyAgcxU6ZBCwEAKVZkzAgYyU6VDCgEDKVRlzggYyEyVDikE DKRQlTkjYCAzVTqkEDCQQlXmjICBzFTpkELAQApVmTMCBjJTpUMKAQMpVGXOCBjITJUOKQQMpFCV OSNgIDNVOqQQMJBCVeaMgIHMVOmQQsBAClWZMwIGMlOlQwoBAylUZc4IGMhMlQ4pBAykUJU5I2Ag M1U6pBAwkEJV5oyAgcxU6ZBCwEAKVZkzAgYyU6VDCgEDKVRlzggYyEyVDikEDKRQlTkjYCAzVTqk EDCQQlXmjICBzFTpkELAQApVmTMCBjJTpUMKAQMpVGXOCBjITJUOKQQMpFCVOSNgIDNVOqQQMJBC VeaMgIHMVOmQQsBAClWZMwIGMlOlQwoBAylUZc4IGMhMlQ4pBAykUJU5I2AgM1U6pBAwkEJV5oyA gcxU6ZBCwEAKVZkzAgYyU6VDCgEDKVRlzggYyEyVDikEDKRQlTkjYCAzVTqkEDCQQlXmjICBzFTp kELAQApVmTMCBjJTpUMKAQMpVGXOCBjITJUOKQQMpFCVOSNgIDNVOqQQMJBCVeaMgIHMVOmQQsBA ClWZMwIGMlOlQwoBAylUZc4IGMhMlQ4pBAykUJVJgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAAB AgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI ECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQIECBA gAABAgQIECBAgAABAgQIECBAgAABAgQIECBAgAABAgQI/FTgARiYAch70H+pAAAAAElFTkSuQmCC