[Webkit-unassigned] [Bug 180550] New: iOS: Many AMP pages crash inside Document::updateStyleIfNeeded

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=180550

            Bug ID: 180550
           Summary: iOS: Many AMP pages crash inside
                    Document::updateStyleIfNeeded
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rniwa at webkit.org
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

e.g.
0   WebCore                             0x000000018be6f274 WebCore::Document::updateStyleIfNeeded() + 360 (Document.cpp:1955)
1   WebCore                             0x000000018be6f1f8 WebCore::Document::updateStyleIfNeeded() + 236 (Document.cpp:1933)
2   WebCore                             0x000000018cd59434 WebCore::LayoutContext::layout() + 780 (LayoutContext.cpp:490)
3   WebCore                             0x000000018bedb470 WebCore::RenderWidget::updateWidgetPosition() + 212 (RenderWidget.cpp:339)
4   WebCore                             0x000000018cd5e724 WebCore::FrameView::updateWidgetPositions() + 312 (FrameView.cpp:4893)
5   WebCore                             0x000000018cd64f3c WebCore::LayoutContext::runOrScheduleAsynchronousTasks() + 444 (LayoutContext.cpp:222)
6   WebCore                             0x000000018cd597b0 WebCore::LayoutContext::layout() + 1672 (LayoutContext.cpp:207)
7   WebCore                             0x000000018bedb470 WebCore::RenderWidget::updateWidgetPosition() + 212 (RenderWidget.cpp:339)
8   WebCore                             0x000000018cfbf608 WebCore::RenderFrameBase:: (bool, bool) + 100 (RenderFrameBase.cpp:80)
9   WebCore                             0x000000018bee44d0 WebCore::RenderFrameBase::layoutWithFlattening(bool, bool) + 224 (RenderFrameBase.cpp:62)
10  WebCore                             0x000000018bedae04 WebCore::RenderIFrame::layout() + 76 (RenderIFrame.cpp:111)
11  WebCore                             0x000000018cf53e58 WebCore::RenderBlock::layoutPositionedObject(WebCore::RenderBox&, bool, bool) + 420 (RenderElement.h:128)
12  WebCore                             0x000000018be3bf9c WebCore::RenderBlock::layoutPositionedObjects(bool, bool) + 296 (RenderBlock.cpp:1476)
13  WebCore                             0x000000018be3c4f0 WebCore::RenderBlock::simplifiedLayout() + 552 (RenderBlock.cpp:1335)
14  WebCore                             0x000000018cf6003c WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) + 72 (RenderBlockFlow.cpp:457)
15  WebCore                             0x000000018be3bfec WebCore::RenderBlock::layout() + 56 (RenderBlock.cpp:1031)

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