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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GTK][Threaded Compositor] Several more flaky tests"
href="https://bugs.webkit.org/show_bug.cgi?id=161688">161688</a>
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<th>Summary</th>
<td>[GTK][Threaded Compositor] Several more flaky tests
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>Other
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>WebKit Gtk
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>mcatanzaro@igalia.com
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<th>CC</th>
<td>bugs-noreply@webkitgtk.org
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<pre>Since we enabled threaded compositor, we now have a bunch of tests that occasionally pass when they usually fail. In build #18023 we have 84 unexpected passes, for example; that never happened before threaded compositor. What's interesting is these tests either always pass or always fail in a particular run of run-webkit-tests; they are clearly flaky, but they don't contribute to the flakiness count.
Carlos Garcia suggests in <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [GTK][Threaded Compositor] Several flaky tests"
href="show_bug.cgi?id=161242">bug #161242</a>#c20:
<span class="quote">> I have theory, though. When they
> unexpectedly pass, they don't actually pass, we just fail to render both the
> actual and expected files in the same way (for example a fully white image
> in both cases). That's a problem of the reftests. So, more interesting to
> see what's failing, which can be also reproduced locally more easily, would
> be to see what we render when they pass.</span ></pre>
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