<html>
<head>
<base href="https://bugs.webkit.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Some assertion failures in compositing code after r183687"
href="https://bugs.webkit.org/show_bug.cgi?id=144630">144630</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Some assertion failures in compositing code after r183687
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>528+ (Nightly build)
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>OS</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>Media Elements
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>roger_fong@apple.com
</td>
</tr></table>
<p>
<div>
<pre>All that was changed was removal of a z-index: 0 from the media control styles.
This caused 5 tests to start generating assertion failures deep in compositing code, which implies an error with that code somehow.
After a bit of debugging I've decided that I have no idea where to even begin with compositing stuff.
The tests failing are:
compositing/regions/transform-transparent-positioned-video-inside-region.html
compositing/regions/video-in-overflow-region.html
fast/regions/fullscreen/full-screen-video-from-region.html
fast/regions/fullscreen/full-screen-video-in-region-crash.html
fast/regions/inline-block-inside-anonymous-overflow.html
Though they pass in release.
In addition I have not hit the assertion just browsing around various videos using our controls in debug.
I will skip these tests for now.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>