Bug 274545

Summary:	ASSERTION FAILED: willBeComposited == needsToBeComposited(layer, queryData) in View Transitions tests
Product:	WebKit	Reporter:	Robert Jenner <jenner>
Component:	Layout and Rendering	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	bfulgham, ntim, simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=90342

Description Robert Jenner 2024-05-22 12:47:44 PDT

The following 9X imported css tests are all hitting the same assertion failure

imported/w3c/web-platform-tests/css/css-view-transitions/animating-new-content-subset.html
imported/w3c/web-platform-tests/css/css-view-transitions/content-with-transparent-background.html
imported/w3c/web-platform-tests/css/css-view-transitions/massive-element-below-and-on-top-of-viewport-partially-onscreen-new.html
imported/w3c/web-platform-tests/css/css-view-transitions/massive-element-below-viewport-offscreen-new.html
imported/w3c/web-platform-tests/css/css-view-transitions/massive-element-below-viewport-partially-onscreen-old.html
imported/w3c/web-platform-tests/css/css-view-transitions/massive-element-left-of-viewport-offscreen-new.html
imported/w3c/web-platform-tests/css/css-view-transitions/massive-element-on-top-of-viewport-offscreen-new.html
imported/w3c/web-platform-tests/css/css-view-transitions/offscreen-element-modified-before-coming-onscreen.html
imported/w3c/web-platform-tests/css/css-view-transitions/span-with-overflowing-text-and-box-decorations.html

HISTORY:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Fcontent-with-transparent-background.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Fmassive-element-below-and-on-top-of-viewport-partially-onscreen-new.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Fmassive-element-below-viewport-offscreen-new.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Fmassive-element-below-viewport-partially-onscreen-old.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Fmassive-element-left-of-viewport-offscreen-new.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Fmassive-element-on-top-of-viewport-offscreen-new.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Foffscreen-element-modified-before-coming-onscreen.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Fspan-with-overflowing-text-and-box-decorations.html



ASSERTION FAILED: willBeComposited == needsToBeComposited(layer, queryData)
/Volumes/Data/worker/macOS-Sonoma-Debug-Build-EWS/build/Source/WebCore/rendering/RenderLayerCompositor.cpp(1256) : void WebCore::RenderLayerCompositor::computeCompositingRequirements(RenderLayer *, RenderLayer &, LayerOverlapMap &, CompositingState &, BackingSharingState &, bool &)
com.apple.WebKit.WebContent.Development terminated (pid 27616) for reason: crash
LEAK: 1 WebPageProxy

Comment 1 Radar WebKit Bug Importer 2024-05-22 12:48:29 PDT

<rdar://problem/128558805>

Comment 2 Robert Jenner 2024-05-22 12:54:57 PDT

These are flaky assertions, but so far evidence suggests that they only assert/crash when they are run together on the same worker.

Comment 3 Tim Nguyen (:ntim) 2024-05-22 13:49:20 PDT

Fixed by https://commits.webkit.org/279114@main

Comment 4 Alexey Proskuryakov 2024-05-23 08:23:13 PDT


*** This bug has been marked as a duplicate of bug 274511 ***