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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ASSERTION FAILED: Tried to start the stopwatch, but it is already running."
href="https://bugs.webkit.org/show_bug.cgi?id=148644">148644</a>
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<th>Summary</th>
<td>ASSERTION FAILED: Tried to start the stopwatch, but it is already running.
</td>
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<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Local Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
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<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>
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<th>Component</th>
<td>Web Inspector
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mark.lam@apple.com
</td>
</tr>
<tr>
<th>CC</th>
<td>bburg@apple.com, graouts@webkit.org, joepeck@webkit.org, mattbaker@apple.com, nvasilyev@apple.com, timothy@apple.com, webkit-bug-importer@group.apple.com
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<pre>ASSERTION FAILED: Tried to start the stopwatch, but it is already running.
std::isnan(m_lastStartTime)
/Volumes/Data/ws2/OpenSource/WebKitBuild/Debug/usr/local/include/wtf/Stopwatch.h(63) : void WTF::Stopwatch::start()
1 0x10da65ff0 WTFCrash
2 0x10d5a429e WTF::Stopwatch::start()
3 0x10d5a1eb4 Inspector::InspectorDebuggerAgent::didContinue()
4 0x10d5a1fcc non-virtual thunk to Inspector::InspectorDebuggerAgent::didContinue()
5 0x10d97e1c5 Inspector::ScriptDebugServer::dispatchDidContinue(Inspector::ScriptDebugListener*)
6 0x10d97e7f5 Inspector::ScriptDebugServer::dispatchFunctionToListeners(WTF::HashSet<Inspector::ScriptDebugListener*, WTF::PtrHash<Inspector::ScriptDebugListener*>, WTF::HashTraits<Inspector::ScriptDebugListener*> > const&, void (Inspector::ScriptDebugServer::*)(Inspector::ScriptDebugListener*))
7 0x10d97e6fc Inspector::ScriptDebugServer::dispatchFunctionToListeners(void (Inspector::ScriptDebugServer::*)(Inspector::ScriptDebugListener*))
8 0x10d97eb2c Inspector::ScriptDebugServer::handlePause(JSC::JSGlobalObject*, JSC::Debugger::ReasonForPause)
9 0x10d0ecc3c JSC::Debugger::pauseIfNeeded(JSC::ExecState*)
10 0x10d0ecebc JSC::Debugger::updateCallFrameAndPauseIfNeeded(JSC::ExecState*)
11 0x10d0ed01c JSC::Debugger::atStatement(JSC::ExecState*)
12 0x10d61719b JSC::Interpreter::debug(JSC::ExecState*, JSC::DebugHookID)
13 0x10d7d9a1b llint_slow_path_debug
14 0x10d7e5e8a llint_entry
15 0x10d7e58e3 llint_entry
16 0x10d7df119 vmEntryToJavaScript
17 0x10d63160c JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
18 0x10d6163e2 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
19 0x10d025a9e JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
20 0x10d025b03 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
21 0x11025e6fb WebCore::JSMainThreadExecState::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
22 0x1103db542 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*)
23 0x10fb88167 WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1ul, WTF::CrashOnOverflow, 16ul>&)
24 0x10fb8798e WebCore::EventTarget::fireEventListeners(WebCore::Event*)
25 0x10faafa4b WebCore::DOMWindow::dispatchEvent(WTF::PassRefPtr<WebCore::Event>, WTF::PassRefPtr<WebCore::EventTarget>)
26 0x10fab72b5 WebCore::DOMWindow::dispatchLoadEvent()
27 0x10f96b4fd WebCore::Document::dispatchWindowLoadEvent()
28 0x10f967d2e WebCore::Document::implicitClose()
29 0x10fcf926b WebCore::FrameLoader::checkCallImplicitClose()
30 0x10fcf8f3e WebCore::FrameLoader::checkCompleted()
31 0x10fcf7a52 WebCore::FrameLoader::finishedParsing()
Steps to repro:
1. Follow steps to repro 148380: <a class="bz_bug_link
bz_status_NEW "
title="NEW - Web Inspector: REGRESSION: JSC crashes when pausing at console.assert statement"
href="show_bug.cgi?id=148380#c5">https://bugs.webkit.org/show_bug.cgi?id=148380#c5</a>.
It will fail to repro.
2. Reload the webpage.
You should see the above crash at this point.
I'm using a debug build of r189176.</pre>
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