[Webkit-unassigned] [Bug 81002] New: ASSERTION FAILED: m_purgePreventCount in svg/custom/animate-disallowed-use-element.svg

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81002

           Summary: ASSERTION FAILED: m_purgePreventCount in
                    svg/custom/animate-disallowed-use-element.svg
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: zimmermann at kde.org
                CC: zimmermann at kde.org


I sometimes see this assertion when using nrwt --tolerance 0 -p svg. Probably a FontCachePurgePreventer call missing somewhere. should be easy to fix.

ASSERTION FAILED: m_purgePreventCount
/Users/nzimmermann/Coding/WebKit/Source/WebCore/platform/graphics/FontCache.cpp(280) : WebCore::SimpleFontData *WebCore::FontCache::getCachedFontData(const WebCore::FontPlatformData *, WebCore::FontCache::ShouldRetain)
1   0x10ec70004 WebCore::FontCache::getCachedFontData(WebCore::FontPlatformData const*, WebCore::FontCache::ShouldRetain)
2   0x10ec80611 WebCore::FontCache::getFontDataForCharacters(WebCore::Font const&, unsigned short const*, int)
3   0x10ec86c3d WebCore::Font::glyphDataAndPageForCharacter(int, bool, WebCore::FontDataVariant) const
4   0x10f9a9dc9 WebCore::SVGTextRunRenderingContext::glyphDataForCharacter(WebCore::Font const&, WebCore::TextRun const&, WebCore::WidthIterator&, int, bool, int, unsigned int&)
5   0x10fe3efe6 WebCore::WidthIterator::glyphDataForCharacter(int, bool, int, unsigned int&)
6   0x10fe3f309 WebCore::WidthIterator::advance(int, WebCore::GlyphBuffer*)
7   0x10f9aaf11 WebCore::SVGTextMetricsBuilder::advanceSimpleText()
8   0x10f9aac9c WebCore::SVGTextMetricsBuilder::advance()
9   0x10f9ab4d7 WebCore::SVGTextMetricsBuilder::measureTextRenderer(WebCore::RenderSVGInlineText*, WebCore::MeasureTextData*)
10  0x10f9ab908 WebCore::SVGTextMetricsBuilder::walkTree(WebCore::RenderObject*, WebCore::RenderSVGInlineText*, WebCore::MeasureTextData*)
11  0x10f9ab952 WebCore::SVGTextMetricsBuilder::walkTree(WebCore::RenderObject*, WebCore::RenderSVGInlineText*, WebCore::MeasureTextData*)
12  0x10f9a476e WebCore::SVGTextMetricsBuilder::measureTextRenderer(WebCore::RenderSVGInlineText*)
13  0x10f99162f WebCore::SVGTextLayoutAttributesBuilder::rebuildMetricsForTextRenderer(WebCore::RenderSVGInlineText*)
14  0x10f97a87b WebCore::RenderSVGText::rebuildLayoutAttributes(WTF::Vector<WebCore::SVGTextLayoutAttributes*, 0ul>&)
15  0x10f97a5ee WebCore::RenderSVGInlineText::willBeDestroyed()
16  0x10f94150d WebCore::RenderObject::destroy()
17  0x10f9413fd WebCore::RenderObject::destroyAndCleanupAnonymousWrappers()
18  0x10f6f4d14 WebCore::Node::detach()
19  0x10e79a3e7 WebCore::ContainerNode::detachChildren()
20  0x10e797e09 WebCore::ContainerNode::detach()
21  0x10ebe46f2 WebCore::Element::detach()
22  0x10e79a3e7 WebCore::ContainerNode::detachChildren()
23  0x10e797e09 WebCore::ContainerNode::detach()
24  0x10ebe46f2 WebCore::Element::detach()
25  0x10e79a3e7 WebCore::ContainerNode::detachChildren()
26  0x10e797e09 WebCore::ContainerNode::detach()
27  0x10ebe46f2 WebCore::Element::detach()
28  0x10e79a3e7 WebCore::ContainerNode::detachChildren()
29  0x10e797e09 WebCore::ContainerNode::detach()
30  0x10ebe46f2 WebCore::Element::detach()
31  0x10e79a3e7 WebCore::ContainerNode::detachChildren()
Segmentation fault: 11
No leak checking done: At least one WebView is still open.

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