[Webkit-unassigned] [Bug 145660] New: [GTK] assertion failure in cairo

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=145660

            Bug ID: 145660
           Summary: [GTK] assertion failure in cairo
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P3
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zl29ah at gmail.com

webkit-gtk-2.4.9, cairo-1.14.2. Tried to visit http://agar.io/ with uzbl-2012.05.14-1154-g35db169

uzbl-core: /var/tmp/paludis/x11-libs-cairo-1.14.2/work/cairo-1.14.2/src/cairo-scaled-font.c:459: _cairo_scaled_glyph_page_destroy: Assertion `!scaled_font->cache_frozen' failed.

#0  0x00006ece810d1dfb in raise () from /lib/libc.so.6
#1  0x00006ece810d33b1 in abort () from /lib/libc.so.6
#2  0x00006ece810ca3c8 in __assert_fail_base () from /lib/libc.so.6
#3  0x00006ece810ca486 in __assert_fail () from /lib/libc.so.6
#4  0x00006ece82669ef2 in _cairo_scaled_glyph_page_destroy () from /usr/lib/libcairo.so.2
#5  0x00006ece8266a151 in _cairo_scaled_font_free_last_glyph () from /usr/lib/libcairo.so.2
#6  0x00006ece8266c998 in _cairo_scaled_glyph_lookup () from /usr/lib/libcairo.so.2
#7  0x00006ece8266ddbd in _cairo_scaled_font_glyph_path () from /usr/lib/libcairo.so.2
#8  0x00006ece8262b47b in _cairo_gstate_glyph_path () from /usr/lib/libcairo.so.2
#9  0x00006ece82617d48 in cairo_glyph_path () from /usr/lib/libcairo.so.2
#10 0x00006ece843609ba in WebCore::Font::drawGlyphs(WebCore::GraphicsContext*, WebCore::SimpleFontData const*, WebCore::GlyphBuffer const&, int, int, WebCore::FloatPoint const&) const () from /usr/lib/libwebkitgtk-3.0.so.0
#11 0x00006ece843c3b77 in WebCore::Font::drawGlyphBuffer(WebCore::GraphicsContext*, WebCore::TextRun const&, WebCore::GlyphBuffer const&, WebCore::FloatPoint&) const () from /usr/lib/libwebkitgtk-3.0.so.0
#12 0x00006ece843c5bc5 in WebCore::Font::drawSimpleText(WebCore::GraphicsContext*, WebCore::TextRun const&, WebCore::FloatPoint const&, int, int) const ()
   from /usr/lib/libwebkitgtk-3.0.so.0
#13 0x00006ece843d2c35 in WebCore::GraphicsContext::drawBidiText(WebCore::Font const&, WebCore::TextRun const&, WebCore::FloatPoint const&, WebCore::Font::CustomFontNotReadyAction) () from /usr/lib/libwebkitgtk-3.0.so.0
#14 0x00006ece84837706 in WebCore::CanvasRenderingContext2D::drawTextInternal(WTF::String const&, float, float, bool, float, bool) ()
   from /usr/lib/libwebkitgtk-3.0.so.0
#15 0x00006ece84f7bacb in WebCore::jsCanvasRenderingContext2DPrototypeFunctionStrokeText(JSC::ExecState*) () from /usr/lib/libwebkitgtk-3.0.so.0
#16 0x00006ece33b7c9c5 in ?? ()
#17 0x00006ece0effde80 in ?? ()
#18 0x00006ece8394fee1 in llint_op_call () from /usr/lib/libjavascriptcoregtk-3.0.so.0
#19 0x0000000000000000 in ?? ()

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