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

    <bug>
          <bug_id>190210</bug_id>
          
          <creation_ts>2018-10-02 10:35:48 -0700</creation_ts>
          <short_desc>REGRESSION (r236501?): Layout Test compositing/geometry/limit-layer-bounds-opacity-transition.html is flaky</short_desc>
          <delta_ts>2019-04-04 09:38:57 -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>Layout and Rendering</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Truitt Savell">tsavell</reporter>
          <assigned_to name="Antoine Quint">graouts</assigned_to>
          <cc>bfulgham</cc>
    
    <cc>commit-queue</cc>
    
    <cc>graouts</cc>
    
    <cc>koivisto</cc>
    
    <cc>lforschler</cc>
    
    <cc>realdawei</cc>
    
    <cc>ryanhaddad</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>zalan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1465670</commentid>
    <comment_count>0</comment_count>
    <who name="Truitt Savell">tsavell</who>
    <bug_when>2018-10-02 10:35:48 -0700</bug_when>
    <thetext>The following layout test is flaky on all platforms

compositing/geometry/limit-layer-bounds-opacity-transition.html

Probable cause:

This test became flakey recently. I was able to reproduce the failure using run-webkit-tests --root testbuild-236502 compositing/geometry/limit-layer-bounds-opacity-transition.html --iterations 500 -f 

I ran this on Mojave. This gave me a range of possible revisions for the regression between 236497-236502. Looking at the revisions I think either 236500 or 236501 are at fault but I am not sure. 

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&amp;tests=compositing%2Fgeometry%2Flimit-layer-bounds-opacity-transition.html

Diff:
--- /Volumes/Data/slave/sierra-debug-tests-wk1/build/layout-test-results/compositing/geometry/limit-layer-bounds-opacity-transition-expected.txt
+++ /Volumes/Data/slave/sierra-debug-tests-wk1/build/layout-test-results/compositing/geometry/limit-layer-bounds-opacity-transition-actual.txt
@@ -7,7 +7,7 @@
     (GraphicsLayer
       (bounds 800.00 600.00)
       (contentsOpaque 1)
-      (children 2
+      (children 3
         (GraphicsLayer
           (position 8.00 8.00)
           (anchor 1.00 1.00)
@@ -18,6 +18,12 @@
           (bounds 108.00 99.00)
           (drawsContent 1)
         )
+        (GraphicsLayer
+          (position 8.00 109.00)
+          (bounds 784.00 18.00)
+          (opacity 0.00)
+          (drawsContent 1)
+        )
       )
     )
   )</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1466710</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2018-10-05 10:18:09 -0700</bug_when>
    <thetext>&lt;rdar://problem/45045989&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1468560</commentid>
    <comment_count>2</comment_count>
    <who name="Ryan Haddad">ryanhaddad</who>
    <bug_when>2018-10-12 13:56:52 -0700</bug_when>
    <thetext>*** Bug 190507 has been marked as a duplicate of this bug. ***</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1471595</commentid>
    <comment_count>3</comment_count>
    <who name="Ryan Haddad">ryanhaddad</who>
    <bug_when>2018-10-23 09:59:03 -0700</bug_when>
    <thetext>Marked test as flaky in https://trac.webkit.org/r237352</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1524251</commentid>
    <comment_count>4</comment_count>
      <attachid>366720</attachid>
    <who name="Antoine Quint">graouts</who>
    <bug_when>2019-04-04 09:00:31 -0700</bug_when>
    <thetext>Created attachment 366720
Patch for landing</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1524270</commentid>
    <comment_count>5</comment_count>
      <attachid>366720</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2019-04-04 09:38:56 -0700</bug_when>
    <thetext>Comment on attachment 366720
Patch for landing

Clearing flags on attachment: 366720

Committed r243871: &lt;https://trac.webkit.org/changeset/243871&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1524271</commentid>
    <comment_count>6</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2019-04-04 09:38:57 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
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            <attachid>366720</attachid>
            <date>2019-04-04 09:00:31 -0700</date>
            <delta_ts>2019-04-04 09:38:56 -0700</delta_ts>
            <desc>Patch for landing</desc>
            <filename>bug-190210-20190404180030.patch</filename>
            <type>text/plain</type>
            <size>1770</size>
            <attacher name="Antoine Quint">graouts</attacher>
            
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