217540 2020-10-09 16:18:27 -0700 REGRESSION (r266972): [ Mojave+ debug wk2 ] compositing/animation/repaint-after-clearing-shared-backing.html is a flaky failure 2020-11-04 10:31:27 -0800 1 1 1 Unclassified WebKit Animations WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 rackler graouts aakash_jain dino graouts graouts webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1696389 0 rackler 2020-10-09 16:18:27 -0700 Description: compositing/animation/repaint-after-clearing-shared-backing.html The first failure that I see this on the dashboard was 09/12/20 at r266974, but is not relevant to what would have caused this. The test was introduced at r266972 and has been flaky failure since then. The test was expecting a fader margin: 50px;height: 200px;background-color: rgba(255, 255, 255, 0.5); but returned fader with larger width and position higher. REPRODUCTION STEPS Command: run-webkit-tests --exit-after-n-failures 1 --iterations 50 --debug compositing/animation/repaint-after-clearing-shared-backing.html Result: Regressions: Unexpected image-only failures (1) compositing/animation/repaint-after-clearing-shared-backing.html [ ImageOnlyFailure ] History: https://results.webkit.org/?suite=layout-tests&test=compositing%2Fanimation%2Frepaint-after-clearing-shared-backing.html&limit=50000&platform=mac&style=debug&flavor=wk2 Image Results: https://build.webkit.org/results/Apple-Mojave-Debug-WK2-Tests/r268273%20(12483)/compositing/animation/repaint-after-clearing-shared-backing-diffs.html 1696390 1 webkit-bug-importer 2020-10-09 16:18:51 -0700 <rdar://problem/70157935> 1696394 2 rackler 2020-10-09 16:27:38 -0700 I have marked this test as image only failure while this issue is investigated. https://trac.webkit.org/changeset/268297/webkit 1704359 3 413152 graouts 2020-11-04 02:28:05 -0800 Created attachment 413152 Patch 1704469 4 graouts 2020-11-04 09:42:38 -0800 Committed r269367: <https://trac.webkit.org/changeset/269367> 413152 2020-11-04 02:28:05 -0800 2020-11-04 10:31:27 -0800 Patch bug-217540-20201104112804.patch text/plain 2441 graouts U3VidmVyc2lvbiBSZXZpc2lvbjogMjY5MzU3CmRpZmYgLS1naXQgYS9MYXlvdXRUZXN0cy9DaGFu Z2VMb2cgYi9MYXlvdXRUZXN0cy9DaGFuZ2VMb2cKaW5kZXggOTA0NTJjZWVjOThiNDEyMjM1OWVj ZTY0MGUyODMwMjZhNzU2YjFiMi4uMjIzZGE4NWRmM2QwYjc3ZWI0YmQxMjNiYjQ3ZGNlMTEyM2Rl Nzk3MyAxMDA2NDQKLS0tIGEvTGF5b3V0VGVzdHMvQ2hhbmdlTG9nCisrKyBiL0xheW91dFRlc3Rz L0NoYW5nZUxvZwpAQCAtMSwzICsxLDE2IEBACisyMDIwLTExLTA0ICBBbnRvaW5lIFF1aW50ICA8 Z3Jhb3V0c0B3ZWJraXQub3JnPgorCisgICAgICAgIFJFR1JFU1NJT04gKHIyNjY5NzIpOiBbIE1v amF2ZSsgZGVidWcgd2syIF0gY29tcG9zaXRpbmcvYW5pbWF0aW9uL3JlcGFpbnQtYWZ0ZXItY2xl YXJpbmctc2hhcmVkLWJhY2tpbmcuaHRtbCBpcyBhIGZsYWt5IGZhaWx1cmUKKyAgICAgICAgaHR0 cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIxNzU0MAorICAgICAgICA8cmRh cjovL3Byb2JsZW0vNzAxNTc5MzU+CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BT ISkuCisKKyAgICAgICAgSW1wcm92ZSB0aGUgZmlkZWxpdHkgb2YgdGhpcyB0ZXN0IGJ5IHVzaW5n IGEgbG9uZ2VyIGluaXRpYWwgYW5pbWF0aW9uLgorCisgICAgICAgICogY29tcG9zaXRpbmcvYW5p bWF0aW9uL3JlcGFpbnQtYWZ0ZXItY2xlYXJpbmctc2hhcmVkLWJhY2tpbmcuaHRtbDoKKyAgICAg ICAgKiBwbGF0Zm9ybS9tYWMtd2syL1Rlc3RFeHBlY3RhdGlvbnM6CisKIDIwMjAtMTEtMDMgIERp ZWdvIFBpbm8gR2FyY2lhICA8ZHBpbm9AaWdhbGlhLmNvbT4KIAogICAgICAgICBbR1RLXSBVbnJl dmlld2VkIHRlc3QgZ2FyZGVuaW5nLiBSZW1vdmUgc3RhbGUgYmFzZWxpbmVzIG9mIHR3byBtZWRp YXN0cmVhbSB0ZXN0cy4KZGlmZiAtLWdpdCBhL0xheW91dFRlc3RzL2NvbXBvc2l0aW5nL2FuaW1h dGlvbi9yZXBhaW50LWFmdGVyLWNsZWFyaW5nLXNoYXJlZC1iYWNraW5nLmh0bWwgYi9MYXlvdXRU ZXN0cy9jb21wb3NpdGluZy9hbmltYXRpb24vcmVwYWludC1hZnRlci1jbGVhcmluZy1zaGFyZWQt YmFja2luZy5odG1sCmluZGV4IDc3ZjUzOWFlYmUwZjVhNTZkZmRkNWViMzM1NmQ4Y2UyODRlM2I5 NDIuLmM5ZDhjZDY4N2JlMzgwM2E0N2ZmYzI2MmYwMTQ3YmQyZWVmOTRkYmIgMTAwNjQ0Ci0tLSBh L0xheW91dFRlc3RzL2NvbXBvc2l0aW5nL2FuaW1hdGlvbi9yZXBhaW50LWFmdGVyLWNsZWFyaW5n LXNoYXJlZC1iYWNraW5nLmh0bWwKKysrIGIvTGF5b3V0VGVzdHMvY29tcG9zaXRpbmcvYW5pbWF0 aW9uL3JlcGFpbnQtYWZ0ZXItY2xlYXJpbmctc2hhcmVkLWJhY2tpbmcuaHRtbApAQCAtMjksNyAr MjksNyBAQAogCiAgICAgICAgICAgICAuZmFkZS1pbiB7CiAgICAgICAgICAgICAgICAgYW5pbWF0 aW9uLW5hbWU6IGZhZGUtaW47Ci0gICAgICAgICAgICAgICAgYW5pbWF0aW9uLWR1cmF0aW9uOiAx bXM7CisgICAgICAgICAgICAgICAgYW5pbWF0aW9uLWR1cmF0aW9uOiA1MG1zOwogICAgICAgICAg ICAgfQogCiAgICAgICAgICAgICBAa2V5ZnJhbWVzIGZhZGUtaW4gewpkaWZmIC0tZ2l0IGEvTGF5 b3V0VGVzdHMvcGxhdGZvcm0vbWFjLXdrMi9UZXN0RXhwZWN0YXRpb25zIGIvTGF5b3V0VGVzdHMv cGxhdGZvcm0vbWFjLXdrMi9UZXN0RXhwZWN0YXRpb25zCmluZGV4IGZiMmM2ZTU2MTUwNDAwOTMz ZjE1ZTcwMTA0ZWUxMjBiMDFlMjg2NzAuLjZhYzNlNzBiYmM1YjE4ZjU0MTllNzA4Mjk1N2E4OTYy ZjRmMTFmYTcgMTAwNjQ0Ci0tLSBhL0xheW91dFRlc3RzL3BsYXRmb3JtL21hYy13azIvVGVzdEV4 cGVjdGF0aW9ucworKysgYi9MYXlvdXRUZXN0cy9wbGF0Zm9ybS9tYWMtd2syL1Rlc3RFeHBlY3Rh dGlvbnMKQEAgLTEyNzcsOCArMTI3Nyw2IEBAIHdlYmtpdC5vcmcvYi8yMTcyNjIgWyBDYXRhbGlu YSBdIGltcG9ydGVkL3czYy93ZWItcGxhdGZvcm0tdGVzdHMvbWVkaWFjYXB0dXJlLXJlCiAKIHdl YmtpdC5vcmcvYi8yMTc1MjUgWyBEZWJ1ZyBdIGltcG9ydGVkL3czYy93ZWItcGxhdGZvcm0tdGVz dHMvbWVkaWFjYXB0dXJlLXJlY29yZC9pZGxoYXJuZXNzLndpbmRvdy5odG1sIFsgUGFzcyBDcmFz aCBdCiAKLXdlYmtpdC5vcmcvYi8yMTc1NDAgY29tcG9zaXRpbmcvYW5pbWF0aW9uL3JlcGFpbnQt YWZ0ZXItY2xlYXJpbmctc2hhcmVkLWJhY2tpbmcuaHRtbCBbIFBhc3MgSW1hZ2VPbmx5RmFpbHVy ZSBdCi0KIHdlYmtpdC5vcmcvYi8yMTc2ODYgaW5zcGVjdG9yL3BhZ2Uvb3ZlcnJpZGVTZXR0aW5n LUlUUERlYnVnTW9kZUVuYWJsZWQuaHRtbCBbIFBhc3MgRmFpbHVyZSBdCiAKIHdlYmtpdC5vcmcv Yi8yMTc4NTcgWyBEZWJ1ZyBdIGltcG9ydGVkL3czYy93ZWItcGxhdGZvcm0tdGVzdHMvbWVkaWFj YXB0dXJlLXJlY29yZC9NZWRpYVJlY29yZGVyLXN0b3AuaHRtbCBbIFNraXAgXQo=