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<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>254708</bug_id>
          
          <creation_ts>2023-03-29 17:16:34 -0700</creation_ts>
          <short_desc>REGRESSION(262263@main) [Win] ASSERTION FAILED: !HashTranslator::equal(KeyTraits::emptyValue(), key) in font tests</short_desc>
          <delta_ts>2023-03-31 00:52:44 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>WebKit2</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=254490</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Fujii Hironori">fujii</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>kkinnunen</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1945187</commentid>
    <comment_count>0</comment_count>
    <who name="Fujii Hironori">fujii</who>
    <bug_when>2023-03-29 17:16:34 -0700</bug_when>
    <thetext>REGRESSION [Win] ASSERTION FAILED: !HashTranslator::equal(KeyTraits::emptyValue(), key) in font tests

262262@main: last good
262264@main: first bad

262263@main (bug#254490) seems to be the culprit.

https://build.webkit.org/#/builders/727/builds/20001
https://build.webkit.org/results/WinCairo-64-bit-Debug-Tests/262264@main%20(20001)/results.html

Regressions: Unexpected crashes (9)
  fast/canvas/2d.text.draw.fill.maxWidth.gradient.html [ Crash ]
  fast/canvas/2d.text.draw.fill.maxWidth.veryLarge.html [ Crash ]
  fast/canvas/2d.text.draw.fill.maxWidth.verySmall.html [ Crash ]
  fast/canvas/draw-text-repeatedly-into-disconnected-canvas.html [ Crash ]
  fast/canvas/fill-gradient-text-with-web-font.html [ Crash ]
  fast/text/canvas-fonts.html [ Crash ]
  fast/text/otsvg-canvas.html [ Crash ]
  fast/text/otsvg-spacing.html [ Crash ]
  fast/text/small-caps-canvas.html [ Crash ]


ASSERTION FAILED: !HashTranslator::equal(KeyTraits::emptyValue(), key)
C:\BW\WinCairo-64-bit-Debug-Build\build\WebKitBuild\Debug\WTF\Headers\wtf/HashTable.h(659) : WTF::HashTable&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,struct WTF::KeyValuePair&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64&gt;,struct WTF::KeyValuePairKeyExtractor&lt;struct WTF::KeyValuePair&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64&gt; &gt;,struct WTF::DefaultHash&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,struct WTF::HashMap&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64,struct WTF::DefaultHash&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,struct WTF::HashTraits&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,struct WTF::HashTraits&lt;unsigned __int64&gt;,struct WTF::HashTableTraits&gt;::KeyValuePairTraits,struct WTF::HashTraits&lt;class WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt; &gt;::checkKey
1   00007FFFCF4C249B WTFCrash
2   00007FFFB0D3322E WTFCrashWithInfo
3   00007FFFB251D0CB WTF::HashTable&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,WTF::KeyValuePair&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64&gt;,WTF::KeyValuePairKeyExtractor&lt;WTF::KeyValuePair&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64&gt; &gt;,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashMap&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;unsigned __int64&gt;,WTF::HashTableTraits&gt;::KeyValuePairTraits,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt; &gt;::checkKey&lt;WTF::HashMapTranslator&lt;WTF::HashMap&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;unsigned __int64&gt;,WTF::HashTableTraits&gt;::KeyValuePairTraits,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt; &gt;,WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;
4   00007FFFB251ABC1 WTF::HashTable&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,WTF::KeyValuePair&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64&gt;,WTF::KeyValuePairKeyExtractor&lt;WTF::KeyValuePair&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64&gt; &gt;,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashMap&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;unsigned __int64&gt;,WTF::HashTableTraits&gt;::KeyValuePairTraits,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt; &gt;::add&lt;WTF::HashMapTranslator&lt;WTF::HashMap&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;unsigned __int64&gt;,WTF::HashTableTraits&gt;::KeyValuePairTraits,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt; &gt;,WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; const &amp;,unsigned __int64 &amp;&gt;
5   00007FFFB254162A WTF::HashMap&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;unsigned __int64&gt;,WTF::HashTableTraits&gt;::inlineAdd&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; const &amp;,unsigned __int64 &amp;&gt;
6   00007FFFB25198BA WTF::HashMap&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt;,unsigned __int64,WTF::DefaultHash&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;WTF::ObjectIdentifier&lt;enum WebCore::RenderingResourceIdentifierType&gt; &gt;,WTF::HashTraits&lt;unsigned __int64&gt;,WTF::HashTableTraits&gt;::add&lt;unsigned __int64 &amp;&gt;
7   00007FFFB24D5CF5 WebKit::RemoteResourceCacheProxy::recordFontCustomPlatformDataUse
8   00007FFFB24D568D WebKit::RemoteResourceCacheProxy::recordFontUse
9   00007FFFB24D199C WebKit::RemoteDisplayListRecorderProxy::recordResourceUse
10  00007FFF9D21D5AF WebCore::DisplayList::Recorder::drawGlyphsAndCacheResources
11  00007FFF995A1DB9 WebCore::DrawGlyphsRecorder::drawGlyphs
12  00007FFF9D21D438 WebCore::DisplayList::Recorder::drawGlyphs
13  00007FFF9D0C62B7 WebCore::FontCascade::drawGlyphBuffer
14  00007FFF9D0C2430 WebCore::FontCascade::drawText
15  00007FFF9D11C028 WebCore::GraphicsContext::drawBidiText
16  00007FFF9C56D734 WebCore::CanvasRenderingContext2DBase::FontProxy::drawBidiText
17  00007FFF9C56EB87 WebCore::CanvasRenderingContext2DBase::drawTextUnchecked
18  00007FFF9C576235 WebCore::CanvasRenderingContext2D::drawTextInternal
19  00007FFF9C5755FD WebCore::CanvasRenderingContext2D::fillText
20  00007FFF99936D26 `WebCore::jsCanvasRenderingContext2DPrototypeFunction_fillTextBody&apos;::`64&apos;::&lt;lambda_1&gt;::operator()
21  00007FFF9995F973 WebCore::toJS&lt;WebCore::IDLUndefined,`WebCore::jsCanvasRenderingContext2DPrototypeFunction_fillTextBody&apos;::`64&apos;::&lt;lambda_1&gt; &gt;
22  00007FFF99936B01 WebCore::jsCanvasRenderingContext2DPrototypeFunction_fillTextBody
23  00007FFF99947E15 WebCore::IDLOperation&lt;WebCore::JSCanvasRenderingContext2D&gt;::call&lt;&amp;WebCore::jsCanvasRenderingContext2DPrototypeFunction_fillTextBody,0&gt;
24  00007FFF999084A5 WebCore::jsCanvasRenderingContext2DPrototypeFunction_fillText
25  000001C8240E14DE (null)</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1945256</commentid>
    <comment_count>1</comment_count>
      <attachid>465674</attachid>
    <who name="Fujii Hironori">fujii</who>
    <bug_when>2023-03-29 23:04:50 -0700</bug_when>
    <thetext>Created attachment 465674
WIP patch

This patch solves above assertion failure.
But, another assertion fails.

&gt; GPUProcess/graphics/RemoteRenderingBackend.cpp(354) : WebKit::RemoteRenderingBackend::cacheFont
&gt; SHOULD NEVER BE REACHED</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1945624</commentid>
    <comment_count>2</comment_count>
    <who name="Fujii Hironori">fujii</who>
    <bug_when>2023-03-31 00:52:44 -0700</bug_when>
    <thetext>Reverted by 262371@main.</thetext>
  </long_desc>
      
          <attachment
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            <attachid>465674</attachid>
            <date>2023-03-29 23:04:50 -0700</date>
            <delta_ts>2023-03-29 23:04:50 -0700</delta_ts>
            <desc>WIP patch</desc>
            <filename>wip.patch</filename>
            <type>text/plain</type>
            <size>645</size>
            <attacher name="Fujii Hironori">fujii</attacher>
            
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