[Webkit-unassigned] [Bug 262272] New: ASSERTION FAILED: view().frameView().layoutContext().layoutDeltaMatches(oldLayoutDelta)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=262272

            Bug ID: 262272
           Summary: ASSERTION FAILED:
                    view().frameView().layoutContext().layoutDeltaMatches(
                    oldLayoutDelta)
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: 1319794503 at qq.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 467945

  --> https://bugs.webkit.org/attachment.cgi?id=467945&action=review

testcase to trigger the crash

ASSERTION FAILED: view().frameView().layoutContext().layoutDeltaMatches(oldLayoutDelta)
/app/webkit/Source/WebCore/rendering/RenderBlockFlow.cpp(1138) : void WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)

The minimized testcase will be uploaded as soon as possible.

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