Bug 290012 – REGRESSION(291808@main): [macOS Debug]: ASSERTION FAILED: !index in CSSFontSelector::fallbackFontAt

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: Text

[Marta Darbinyan]

The following test is failing with assertion in macOS Debug queue in EWS. The test is also failing on post-commit bots. 
html5lib/generated/run-entities01-data.html 

The change 291808@main is in the regression range when the test started crashing. 

Crash logs:
stderr:
ASSERTION FAILED: !index
/Volumes/Data/worker/macOS-Sequoia-Debug-Build-EWS/build/Source/WebCore/css/CSSFontSelector.cpp(434) : virtual RefPtr<Font> WebCore::CSSFontSelector::fallbackFontAt(const FontDescription &, size_t)
1   0x3042a891c WebCore::CSSFontSelector::fallbackFontAt(WebCore::FontDescription const&, unsigned long)
2   0x306360784 WebCore::FontCascadeFonts::realizeFallbackRangesAt(WebCore::FontCascadeDescription const&, WebCore::FontSelector*, unsigned int)
3   0x306361628 WebCore::FontCascadeFonts::glyphDataForVariant(char32_t, WebCore::FontCascadeDescription const&, WebCore::FontSelector*, WebCore::FontVariant, WebCore::ResolvedEmojiPolicy, unsigned int)
4   0x30635697c WebCore::FontCascadeFonts::glyphDataForCharacter(char32_t, WebCore::FontCascadeDescription const&, WebCore::FontSelector*, WebCore::FontVariant, WebCore::ResolvedEmojiPolicy)
5   0x3063565f0 WebCore::FontCascade::glyphDataForCharacter(char32_t, bool, WebCore::FontVariant) const
6   0x306356b9c WebCore::FontCascade::canUseSimplifiedTextMeasuring(char32_t, WebCore::FontVariant, bool, WebCore::Font const&) const
7   0x306d75990 WebCore::RenderText::initiateFontLoadingByAccessingGlyphDataAndComputeCanUseSimplifiedTextMeasuring(WTF::String const&)
8   0x306d75c08 WebCore::RenderText::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*)
9   0x306bbfcd0 WebCore::RenderElement::didAttachChild(WebCore::RenderObject&, WebCore::RenderObject*)
10  0x306fcb6a4 WebCore::RenderTreeBuilder::attachToRenderElement(WebCore::RenderElement&, std::__1::unique_ptr<WebCore::RenderObject, WebCore::RenderObjectDeleter>, WebCore::RenderObject*)
11  0x306fcbe1c WebCore::RenderTreeBuilder::Block::attachIgnoringContinuation(WebCore::RenderBlock&, std::__1::unique_ptr<WebCore::RenderObject, WebCore::RenderObjectDeleter>, WebCore::RenderObject*)
12  0x306fcb3a0 WebCore::RenderTreeBuilder::Block::attach(WebCore::RenderBlock&, std::__1::unique_ptr<WebCore::RenderObject, WebCore::RenderObjectDeleter>, WebCore::RenderObject*)
13  0x306fcae5c WebCore::RenderTreeBuilder::BlockFlow::attach(WebCore::RenderBlockFlow&, std::__1::unique_ptr<WebCore::RenderObject, WebCore::RenderObjectDeleter>, WebCore::RenderObject*)
14  0x306fca25c WebCore::RenderTreeBuilder::attachInternal(WebCore::RenderElement&, std::__1::unique_ptr<WebCore::RenderObject, WebCore::RenderObjectDeleter>, WebCore::RenderObject*)

Test history: https://results.webkit.org/?suite=layout-tests&test=html5lib%2Fgenerated%2Frun-entities01-data.html&flavor=wk2&style=debug

Test result: https://ews-build.webkit.org/#/builders/122/builds/16565

[Radar WebKit Bug Importer]

<rdar://problem/147365119>

[EWS]

Test gardening commit 292335@main (b095dac9cc00): <https://commits.webkit.org/292335@main>

Reviewed commits have been landed. Closing PR #42664 and removing active labels.

[EWS]

Test gardening commit 292527@main (b21609f7adae): <https://commits.webkit.org/292527@main>

Reviewed commits have been landed. Closing PR #42855 and removing active labels.

[Alexey Proskuryakov]

Looks like this got re-filed as bug 290231 for some reason. Duping forward, because that bug has a PR.

*** This bug has been marked as a duplicate of bug 290231 ***