[Webkit-unassigned] [Bug 98869] New: Assertion failure in RenderObject::drawLineForBoxSide

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=98869

           Summary: Assertion failure in RenderObject::drawLineForBoxSide
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: falken at chromium.org


Created an attachment (id=167938)
 --> (https://bugs.webkit.org/attachment.cgi?id=167938&action=review)
minimized testcase

Assertion failure seen on a recent Chromium Linux build and Mac build (r130854):

ASSERTION FAILED: x2 >= x1
/Users/falken/WebKit/Source/WebCore/rendering/RenderObject.cpp(1026) : void WebCore::RenderObject::drawLineForBoxSide(WebCore::GraphicsContext *, int, int, int, int, WebCore::BoxSide, WebCore::Color, WebCore::EBorderStyle, int, int, bool)
1   0x108d47d10 WebCore::RenderObject::drawLineForBoxSide(WebCore::GraphicsContext*, int, int, int, int, WebCore::BoxSide, WebCore::Color, WebCore::EBorderStyle, int, int, bool)
2   0x108c67d3f WebCore::RenderBoxModelObject::paintOneBorderSide(WebCore::GraphicsContext*, WebCore::RenderStyle const*, WebCore::RoundedRect const&, WebCore::RoundedRect const&, WebCore::IntRect const&, WebCore::BoxSide, WebCore::BoxSide, WebCore::BoxSide, WebCore::BorderEdge const*, WebCore::Path const*, WebCore::BackgroundBleedAvoidance, bool, bool, bool, WebCore::Color const*)
3   0x108c69c5a WebCore::RenderBoxModelObject::paintBorderSides(WebCore::GraphicsContext*, WebCore::RenderStyle const*, WebCore::RoundedRect const&, WebCore::RoundedRect const&, WebCore::BorderEdge const*, unsigned int, WebCore::BackgroundBleedAvoidance, bool, bool, bool, WebCore::Color const*)
4   0x108c6b4b9 WebCore::RenderBoxModelObject::paintBorder(WebCore::PaintInfo const&, WebCore::FractionalLayoutRect const&, WebCore::RenderStyle const*, WebCore::BackgroundBleedAvoidance, bool, bool)
5   0x108c4308b WebCore::RenderBox::paintBoxDecorations(WebCore::PaintInfo&, WebCore::FractionalLayoutPoint const&)
6   0x108bdb6a9 WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::FractionalLayoutPoint const&)
7   0x108bd8ca3 WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::FractionalLayoutPoint const&)
8   0x108cded89 WebCore::RenderLayer::paintLayerContents(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, WebCore::FractionalLayoutSize const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
9   0x108cde0ea WebCore::RenderLayer::paintLayerContentsAndReflection(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, WebCore::FractionalLayoutSize const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
10  0x108cdd708 WebCore::RenderLayer::paintLayer(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, WebCore::FractionalLayoutSize const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
11  0x108ce0075 WebCore::RenderLayer::paintList(WTF::Vector<WebCore::RenderLayer*, 0ul>*, WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
12  0x108cdf2cc WebCore::RenderLayer::paintLayerContents(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, WebCore::FractionalLayoutSize const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
13  0x108cde0ea WebCore::RenderLayer::paintLayerContentsAndReflection(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, WebCore::FractionalLayoutSize const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
14  0x108cdd708 WebCore::RenderLayer::paintLayer(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, WebCore::FractionalLayoutSize const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
15  0x108ce0075 WebCore::RenderLayer::paintList(WTF::Vector<WebCore::RenderLayer*, 0ul>*, WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
16  0x108cdf2cc WebCore::RenderLayer::paintLayerContents(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::FractionalLayoutRect const&, WebCore::FractionalLayoutSize const&, unsigned int, WebCore::RenderObject*, WebCore::RenderRegion*, WTF::HashMap<WebCore::OverlapTestRequestClient*, WebCore::IntRect, WTF::PtrHash<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::OverlapTestRequestClient*>, WTF::HashTraits<WebCore::IntRect> >*, unsigned int)
17  0x108cfca78 WebCore::RenderLayerBacking::paintIntoLayer(WebCore::RenderLayer*, WebCore::GraphicsContext*, WebCore::IntRect const&, unsigned int, unsigned int, WebCore::RenderObject*)
18  0x108cfcd91 WebCore::RenderLayerBacking::paintContents(WebCore::GraphicsLayer const*, WebCore::GraphicsContext&, unsigned int, WebCore::IntRect const&)
19  0x10816e5e0 WebCore::GraphicsLayer::paintGraphicsLayerContents(WebCore::GraphicsContext&, WebCore::IntRect const&)
20  0x108176d90 WebCore::GraphicsLayerCA::platformCALayerPaintContents(WebCore::GraphicsContext&, WebCore::IntRect const&)
21  0x108176dd7 non-virtual thunk to WebCore::GraphicsLayerCA::platformCALayerPaintContents(WebCore::GraphicsContext&, WebCore::IntRect const&)
22  0x109304437 __drawLayerContents_block_invoke_0
23  0x105ebd9dd WKCALayerEnumerateRectsBeingDrawnWithBlock
24  0x109303cec drawLayerContents(CGContext*, CALayer*, WebCore::PlatformCALayer*)
25  0x10925eccb WebCore::TileCache::drawLayer(WebTileLayer*, CGContext*)
26  0x10931f389 -[WebTileLayer drawInContext:]
27  0x7fff8c1862a2 CABackingStoreUpdate_
28  0x7fff8c184ce2 CA::Layer::display_()
29  0x7fff8c184661 CA::Layer::display_if_needed(CA::Transaction*)
30  0x7fff8c183e7b CA::Layer::layout_and_display_if_needed(CA::Transaction*)
31  0x7fff8c179653 CA::Context::commit_transaction(CA::Transaction*)

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