277890 2024-08-09 17:17:33 -0700 REGRESSION (282042@main): [ macOS iOS debug ] 45x CSS related layout tests are consistently crashing. 2024-08-09 18:13:01 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 277732 1 aviduya webkit-unassigned koivisto webkit-bot-watchers-bugzilla webkit-bug-importer zalan oldest_to_newest 2051793 0 472106 aviduya 2024-08-09 17:17:33 -0700 Created attachment 472106 Test list fast/css-grid-layout/floating-empty-grids.html fast/css-grid-layout/grid-element-shrink-to-fit.html fast/css-grid-layout/mozilla/grid-repeat-auto-fill-fit-002.html fast/css-grid-layout/mozilla/grid-repeat-auto-fill-fit-003.html fast/css-grid-layout/mozilla/grid-repeat-auto-fill-fit-004.html fast/css-grid-layout/mozilla/grid-repeat-auto-fill-fit-005-part-1.html fast/css-grid-layout/mozilla/grid-repeat-auto-fill-fit-005-part-2.html imported/w3c/web-platform-tests/css/css-contain/contain-size-grid-005.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-001.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-002.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-img-001.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-img-002.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-img-last-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-img-last-baseline-002.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-last-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-last-baseline-002.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-rtl-001.html imported/w3c/web-platform-tests/css/css-grid/abspos/grid-abspos-staticpos-align-self-rtl-002.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-content-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-content-baseline-002.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-content-baseline-003.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-content-baseline-004.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-mixed-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-mixed-baseline-002.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-mixed-baseline-003.html imported/w3c/web-platform-tests/css/css-grid/alignment/grid-item-self-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/alignment/self-baseline/grid-self-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/alignment/self-baseline/grid-self-baseline-003.html imported/w3c/web-platform-tests/css/css-grid/alignment/self-baseline/grid-self-baseline-004.html imported/w3c/web-platform-tests/css/css-grid/alignment/self-baseline/grid-self-baseline-005.html imported/w3c/web-platform-tests/css/css-grid/alignment/self-baseline/grid-self-baseline-007.html imported/w3c/web-platform-tests/css/css-grid/alignment/self-baseline/grid-self-baseline-horiz-002.html imported/w3c/web-platform-tests/css/css-grid/grid-definition/grid-auto-repeat-min-size-002.html imported/w3c/web-platform-tests/css/css-grid/grid-definition/grid-auto-repeat-min-size-003.html imported/w3c/web-platform-tests/css/css-grid/grid-definition/grid-auto-repeat-min-size-004.html imported/w3c/web-platform-tests/css/css-grid/grid-definition/grid-template-rows-fit-content-001.html imported/w3c/web-platform-tests/css/css-grid/grid-model/grid-container-sizing-constraints-001.html imported/w3c/web-platform-tests/css/css-grid/grid-model/grid-size-shrink-to-fit-001.html imported/w3c/web-platform-tests/css/css-grid/layout-algorithm/flex-sizing-columns-min-max-width-001.html imported/w3c/web-platform-tests/css/css-grid/layout-algorithm/flex-sizing-rows-min-max-height-001.html imported/w3c/web-platform-tests/css/css-grid/layout-algorithm/grid-container-percentage-001.html imported/w3c/web-platform-tests/css/css-grid/masonry/tentative/baseline/masonry-grid-item-content-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/masonry/tentative/baseline/masonry-grid-item-self-baseline-001.html imported/w3c/web-platform-tests/css/css-grid/masonry/tentative/baseline/masonry-grid-item-self-baseline-002a.html imported/w3c/web-platform-tests/css/css-grid/masonry/tentative/baseline/masonry-grid-item-self-baseline-002b.html Are consistently crashing after 282042@main landed. HISTORY: Attach test_list.txt to link. https://results.webkit.org/?platform=mac&platform=ios&style=debug Crash Log: 0 com.apple.WebCore 0x35a6a8194 WTFCrashWithInfo(int, char const*, char const*, int) 1 com.apple.WebCore 0x35c5fb538 WebCore::LayoutIntegration::layoutWithFormattingContextForBox(WebCore::Layout::ElementBox const&, WebCore::Layout::LayoutState&) 2 com.apple.WebCore 0x35d9b2728 WTF::Detail::CallableWrapper<void (*)(WebCore::Layout::ElementBox const&, WebCore::Layout::LayoutState&), void, WebCore::Layout::ElementBox const&, WebCore::Layout::LayoutState&>::call(WebCore::Layout::ElementBox const&, WebCore::Layout::LayoutState&) 3 com.apple.WebCore 0x35c4a66a4 WTF::Function<void (WebCore::Layout::ElementBox const&, WebCore::Layout::LayoutState&)>::operator()(WebCore::Layout::ElementBox const&, WebCore::Layout::LayoutState&) const 4 com.apple.WebCore 0x35c4a65d0 WebCore::Layout::LayoutState::layoutWithFormattingContextForBox(WebCore::Layout::ElementBox const&) 5 com.apple.WebCore 0x35c51c8ec WebCore::Layout::InlineFormattingContext::layoutWithFormattingContextForBox(WebCore::Layout::ElementBox const&) REPRODUCIBILITY: I was able to bisect the regression at 282042@main using the command. run-webkit-tests 282042@main --test-list test_list.txt 2051794 1 webkit-bug-importer 2024-08-09 17:18:04 -0700 <rdar://problem/133573704> 2051807 2 ews-feeder 2024-08-09 18:12:58 -0700 Committed 282069@main (d4b77129496a): <https://commits.webkit.org/282069@main> Reviewed commits have been landed. Closing PR #31978 and removing active labels. 472106 2024-08-09 17:17:33 -0700 2024-08-09 17:17:33 -0700 Test list test_list.txt text/plain 4175 aviduya ZmFzdC9jc3MtZ3JpZC1sYXlvdXQvZmxvYXRpbmctZW1wdHktZ3JpZHMuaHRtbApmYXN0L2Nzcy1n cmlkLWxheW91dC9ncmlkLWVsZW1lbnQtc2hyaW5rLXRvLWZpdC5odG1sCmZhc3QvY3NzLWdyaWQt bGF5b3V0L21vemlsbGEvZ3JpZC1yZXBlYXQtYXV0by1maWxsLWZpdC0wMDIuaHRtbApmYXN0L2Nz cy1ncmlkLWxheW91dC9tb3ppbGxhL2dyaWQtcmVwZWF0LWF1dG8tZmlsbC1maXQtMDAzLmh0bWwK ZmFzdC9jc3MtZ3JpZC1sYXlvdXQvbW96aWxsYS9ncmlkLXJlcGVhdC1hdXRvLWZpbGwtZml0LTAw NC5odG1sCmZhc3QvY3NzLWdyaWQtbGF5b3V0L21vemlsbGEvZ3JpZC1yZXBlYXQtYXV0by1maWxs LWZpdC0wMDUtcGFydC0xLmh0bWwKZmFzdC9jc3MtZ3JpZC1sYXlvdXQvbW96aWxsYS9ncmlkLXJl cGVhdC1hdXRvLWZpbGwtZml0LTAwNS1wYXJ0LTIuaHRtbAppbXBvcnRlZC93M2Mvd2ViLXBsYXRm b3JtLXRlc3RzL2Nzcy9jc3MtY29udGFpbi9jb250YWluLXNpemUtZ3JpZC0wMDUuaHRtbAppbXBv cnRlZC93M2Mvd2ViLXBsYXRmb3JtLXRlc3RzL2Nzcy9jc3MtZ3JpZC9hYnNwb3MvZ3JpZC1hYnNw b3Mtc3RhdGljcG9zLWFsaWduLXNlbGYtMDAxLmh0bWwKaW1wb3J0ZWQvdzNjL3dlYi1wbGF0Zm9y 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