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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - fast/mediastream/MediaStream-page-muted.html times out and asserts"
href="https://bugs.webkit.org/show_bug.cgi?id=170355">170355</a>
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<th>Summary</th>
<td>fast/mediastream/MediaStream-page-muted.html times out and asserts
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>Other
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
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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>Media Elements
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>ap@webkit.org
</td>
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<th>CC</th>
<td>eric.carlson@apple.com, jer.noble@apple.com, ryanhaddad@apple.com, webkit-bug-importer@group.apple.com
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<pre>Fairly frequent timeouts and assertion failures on fast/mediastream/MediaStream-page-muted.html
This assertion means that event target wrapper got garbage collected, so this is a general problem with MediaStreamTrack that would affect customers and many test cases. We need to properly protect the wrapper when it's needed.
ASSERTION FAILED: !m_isolatedWorld->isNormal() || m_wrapper || !m_jsFunction
/Volumes/Data/slave/elcapitan-debug/build/Source/WebCore/bindings/js/JSEventListener.h(127) : JSC::JSObject *WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext *) const
1 0x115194270 WTFCrash
2 0x108a46868 WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext*) const
3 0x108e48d24 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*)
4 0x1082fffdf WebCore::EventTarget::fireEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener>, 1ul, WTF::CrashOnOverflow, 16ul>)
5 0x1082ffb96 WebCore::EventTarget::fireEventListeners(WebCore::Event&)
6 0x1082ffa29 WebCore::EventTarget::dispatchEvent(WebCore::Event&)
7 0x10990c741 WebCore::MediaStreamTrack::trackMutedChanged(WebCore::MediaStreamTrackPrivate&)
8 0x10990c79f non-virtual thunk to WebCore::MediaStreamTrack::trackMutedChanged(WebCore::MediaStreamTrackPrivate&)
9 0x109913b78 WebCore::MediaStreamTrackPrivate::sourceMutedChanged()
10 0x109b81cc0 WebCore::RealtimeMediaSource::setMuted(bool)
11 0x1099a96ed WebCore::MockRealtimeMediaSource::startProducingData()
12 0x1099ae3af WebCore::MockRealtimeVideoSource::startProducingData()
13 0x109903d90 WebCore::MediaStreamTrackPrivate::startProducingData()
14 0x109900b20 WebCore::MediaStreamPrivate::startProducingData()
15 0x1098f4089 WebCore::MediaStream::startProducingData()
16 0x1098f41b0 WebCore::MediaStream::pageMutedStateDidChange()
17 0x1098f41dc non-virtual thunk to WebCore::MediaStream::pageMutedStateDidChange()
18 0x1081093dd WebCore::Document::pageMutedStateDidChange()
19 0x109a5e5ed WebCore::Page::setMuted(unsigned int)
20 0x11c94ee6b WebCore::Internals::setPageMuted(WTF::String const&)</pre>
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