233200 2021-11-16 10:24:20 -0800 REGRESSION: [iOS] ASSERTION FAILED: initialLogicalWidth >= 0 in WebCore::Layout::InlineLayoutUnit WebCore::Layout::LineBoxBuilder::constructAndAlignInlineLevelBoxes() 2021-11-16 15:27:55 -0800 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 1 ryanhaddad zalan bfulgham simon.fraser webkit-bot-watchers-bugzilla webkit-bug-importer zalan oldest_to_newest 1815550 0 ryanhaddad 2021-11-16 10:24:20 -0800 TestWebKitAPI.AppPrivacyReport.WebProcessPluginTestAppInitiated and TestWebKitAPI.AppPrivacyReport.WebProcessPluginTestNonAppInitiated are asserting on iOS debug bots: ASSERTION FAILED: initialLogicalWidth >= 0 ./layout/formattingContexts/inline/InlineLineBoxBuilder.cpp(332) : WebCore::Layout::InlineLayoutUnit WebCore::Layout::LineBoxBuilder::constructAndAlignInlineLevelBoxes(WebCore::Layout::LineBox &, const Line::RunList &, size_t) 1 0x7cf2a8789 WTFCrash 2 0x7f53f401b WTFCrashWithInfo(int, char const*, char const*, int) 3 0x7f91ccb0a WebCore::Layout::LineBoxBuilder::constructAndAlignInlineLevelBoxes(WebCore::Layout::LineBox&, WTF::Vector<WebCore::Layout::Line::Run, 10ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, unsigned long) 4 0x7f91cbe85 WebCore::Layout::LineBoxBuilder::build(WebCore::Layout::LineBuilder::LineContent const&, unsigned long) 5 0x7f91ae686 WebCore::Layout::InlineFormattingContext::computeGeometryForLineContent(WebCore::Layout::LineBuilder::LineContent const&) 6 0x7f91ad9c4 WebCore::Layout::InlineFormattingContext::lineLayout(WTF::Vector<WebCore::Layout::InlineItem, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::Layout::LineBuilder::InlineItemRange, WebCore::Layout::ConstraintsForInFlowContent const&) 7 0x7f91ae191 WebCore::Layout::InlineFormattingContext::lineLayoutForIntergration(WebCore::Layout::ConstraintsForInFlowContent const&) 8 0x7f92232ce WebCore::LayoutIntegration::LineLayout::layout() 9 0x7f9fc5a01 WebCore::RenderBlockFlow::layoutModernLines(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 10 0x7f9fc33b4 WebCore::RenderBlockFlow::layoutInlineChildren(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 11 0x7f9fc2588 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 12 0x7f9fa6978 WebCore::RenderBlock::layout() 13 0x7f9fc4d84 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 14 0x7f9fc362b WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) 15 0x7f9fc25a5 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 16 0x7f9fa6978 WebCore::RenderBlock::layout() 17 0x7f9fc4d84 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 18 0x7f9fc362b WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) 19 0x7f9fc25a5 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 20 0x7f9fa6978 WebCore::RenderBlock::layout() 21 0x7f9fc4d84 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 22 0x7f9fc362b WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) 23 0x7f9fc25a5 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 24 0x7f9fa6978 WebCore::RenderBlock::layout() 25 0x7f9fc4d84 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 26 0x7f9fc362b WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) 27 0x7f9fc25a5 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 28 0x7f9fa6978 WebCore::RenderBlock::layout() 29 0x7f9fc4d84 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 30 0x7f9fc362b WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) 31 0x7f9fc25a5 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) https://results.webkit.org/?suite=api-tests&suite=api-tests&test=TestWebKitAPI.AppPrivacyReport.WebProcessPluginTestAppInitiated&test=TestWebKitAPI.AppPrivacyReport.WebProcessPluginTestNonAppInitiated 1815551 1 webkit-bug-importer 2021-11-16 10:25:49 -0800 <rdar://problem/85464609> 1815553 2 zalan 2021-11-16 10:28:59 -0800 will look. 1815564 3 zalan 2021-11-16 10:56:05 -0800 I can repro this by loading webkit.org in MiniBrowser with a narrow enough window. 1815575 4 444414 zalan 2021-11-16 11:19:20 -0800 Created attachment 444414 test reduction 1815618 5 zalan 2021-11-16 13:22:53 -0800 Actually this looks to be addressed at r285863 1815681 6 zalan 2021-11-16 15:26:50 -0800 Yeah, we seem to have recovered according to https://results.webkit.org/?suite=api-tests&suite=api-tests&test=TestWebKitAPI.AppPrivacyReport.WebProcessPluginTestAppInitiated&test=TestWebKitAPI.AppPrivacyReport.WebProcessPluginTestNonAppInitiated 1815683 7 zalan 2021-11-16 15:27:55 -0800 progressed at r285863. 444414 2021-11-16 11:19:20 -0800 2021-11-16 11:19:20 -0800 test reduction 233200.html text/html 214 zalan PHN0eWxlPgpodG1sIHsKICBmb250LWZhbWlseTogLWFwcGxlLXN5c3RlbSwgIlNGIFBybyBUZXh0 IjsKfQoKZGl2IHsgCiAgd2lkdGg6IDQwMHB4OwogIGZvbnQtc2l6ZTogMjBweDsKICBsZXR0ZXIt c3BhY2luZzogLTAuMXB4Owp9Cjwvc3R5bGU+CjxkaXY+c2hvdWxkIG5vdCBjcmFzaCBpbiBkZWJ1 ZyBtb2RlPHNwYW4+aW5zaWRlIGlubGluZSBib3g8L3NwYW4+PC9kaXY+Cg==