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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>208519</bug_id>
          
          <creation_ts>2020-03-03 09:39:50 -0800</creation_ts>
          <short_desc>REGRESSION (r257756?) [ Catalina ] webanimations/accelerated-animation-slot-invalidation.html is flaky failing.</short_desc>
          <delta_ts>2020-03-03 12:59:19 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Animations</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Mac</rep_platform>
          <op_sys>macOS 10.15</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>INVALID</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="Jason Lawrence">Lawrence.j</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1625089</commentid>
    <comment_count>0</comment_count>
      <attachid>392286</attachid>
    <who name="Jason Lawrence">Lawrence.j</who>
    <bug_when>2020-03-03 09:39:50 -0800</bug_when>
    <thetext>Created attachment 392286
accelerated-animation-slot-invalidation-diff

webanimations/accelerated-animation-slot-invalidation.html

Description:
This test is flaky failing on Catalina. The oldest failure that I see is on r257025, but I am not able to locate a diff for that failure.

History:
https://results.webkit.org/?suite=layout-tests&amp;test=webanimations%2Faccelerated-animation-slot-invalidation.html&amp;platform=mac&amp;version_name=Catalina&amp;style=debug&amp;style=release

Diff:
https://build.webkit.org/results/Apple-Catalina-Debug-WK1-Tests/r257778%20(2849)/webanimations/accelerated-animation-slot-invalidation-diff.png</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625090</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2020-03-03 09:40:09 -0800</bug_when>
    <thetext>&lt;rdar://problem/59999868&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625096</commentid>
    <comment_count>2</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2020-03-03 09:47:27 -0800</bug_when>
    <thetext>&lt;rdar://problem/60000347&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625098</commentid>
    <comment_count>3</comment_count>
    <who name="Jason Lawrence">Lawrence.j</who>
    <bug_when>2020-03-03 09:50:35 -0800</bug_when>
    <thetext>I have marked this as failing the image test while this issue is investigated.
https://trac.webkit.org/changeset/257782/webkit</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625099</commentid>
    <comment_count>4</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2020-03-03 09:50:44 -0800</bug_when>
    <thetext>&lt;rdar://problem/60000486&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625151</commentid>
    <comment_count>5</comment_count>
    <who name="Jason Lawrence">Lawrence.j</who>
    <bug_when>2020-03-03 11:20:24 -0800</bug_when>
    <thetext>I can reproduce this issue on r257778 by running the command below.
run-webkit-tests --iterations 2000 --exit-after-n-failures 3 --force webanimations/accelerated-animation-slot-invalidation.html

[1/2000] webanimations/accelerated-animation-slot-invalidation.html failed unexpectedly (com.apple.WebKit.Networking.Development crashed [pid=92312])
[2/2000] webanimations/accelerated-animation-slot-invalidation.html failed unexpectedly (com.apple.WebKit.Networking.Development crashed [pid=92565])
[3/2000] webanimations/accelerated-animation-slot-invalidation.html failed unexpectedly (com.apple.WebKit.Networking.Development crashed [pid=92742])
Exiting early after 3 failures. 3 tests run.


0 tests ran as expected, 3 didn&apos;t (1997 didn&apos;t run):</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625165</commentid>
    <comment_count>6</comment_count>
    <who name="Jason Lawrence">Lawrence.j</who>
    <bug_when>2020-03-03 11:48:23 -0800</bug_when>
    <thetext>when using the same command, I can see that the issue starts between r257759 &amp; r257747.

r257759:
[1/1000] webanimations/accelerated-animation-slot-invalidation.html failed unexpectedly (com.apple.WebKit.Networking.Development crashed [pid=39617])
[2/1000] webanimations/accelerated-animation-slot-invalidation.html failed unexpectedly (com.apple.WebKit.Networking.Development crashed [pid=39633])
[3/1000] webanimations/accelerated-animation-slot-invalidation.html failed unexpectedly (com.apple.WebKit.Networking.Development crashed [pid=39649])
Exiting early after 3 failures. 3 tests run.
0 tests ran as expected, 3 didn&apos;t (997 didn&apos;t run):

r257747:
All 1000 tests ran as expected.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625167</commentid>
    <comment_count>7</comment_count>
    <who name="Jason Lawrence">Lawrence.j</who>
    <bug_when>2020-03-03 11:55:52 -0800</bug_when>
    <thetext>Correction. I was not able to reproduce the failures, I could not locate a diff on the results page and did not get a crash log locally. 
There does appear to be an issue that&apos;s likely related to r257756.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1625191</commentid>
    <comment_count>8</comment_count>
    <who name="Jason Lawrence">Lawrence.j</who>
    <bug_when>2020-03-03 12:59:19 -0800</bug_when>
    <thetext>Marking as invalid and creating a new bug, if needed</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="0"
              isprivate="0"
          >
            <attachid>392286</attachid>
            <date>2020-03-03 09:39:50 -0800</date>
            <delta_ts>2020-03-03 09:39:50 -0800</delta_ts>
            <desc>accelerated-animation-slot-invalidation-diff</desc>
            <filename>accelerated-animation-slot-invalidation-diff.png</filename>
            <type>image/png</type>
            <size>2608</size>
            <attacher name="Jason Lawrence">Lawrence.j</attacher>
            
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    </bug>

</bugzilla>