[Webkit-unassigned] [Bug 172490] New: ASSERT(!m_beginTime) in SMILTimeContainer::begin loading an article on theverge.com

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=172490

            Bug ID: 172490
           Summary: ASSERT(!m_beginTime) in SMILTimeContainer::begin
                    loading an article on theverge.com
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joepeck at webkit.org
                CC: dino at apple.com, sabouhallawa at apple.com,
                    simon.fraser at apple.com, thorton at apple.com

Assertion failure in SMILTimeContainer.cpp:

Steps to reproduce:
1. Load https://www.theverge.com/2017/5/22/15673712/anker-battery-charger-amazon-empire-steven-yang-interview
2. Wait for a bit
  => ASSERT

ASSERTION FAILED: !m_beginTime
OpenSource/Source/WebCore/svg/animation/SMILTimeContainer.cpp(141) : void WebCore::SMILTimeContainer::begin()
1   0x1207e535d WTFCrash
2   0x116c8a429 WebCore::SMILTimeContainer::begin()
3   0x116e7e7f4 WebCore::SVGDocumentExtensions::startAnimations()
4   0x114b94417 WebCore::Document::implicitClose()
5   0x114f5a87b WebCore::FrameLoader::checkCallImplicitClose()
6   0x114f5a5b0 WebCore::FrameLoader::checkCompleted()
7   0x114b9a03c WebCore::Document::checkCompleted()
8   0x114b86905 WebCore::Document::loadEventDelayTimerFired()
9   0x114bc8cfb void std::__1::__invoke_void_return_wrapper<void>::__call<std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*>&>(std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*>&&&)
10  0x114bc8be9 std::__1::__function::__func<std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*>, std::__1::allocator<std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*> >, void ()>::operator()()
11  0x11448af0a std::__1::function<void ()>::operator()() const
12  0x11448ae29 WebCore::Timer::fired()
13  0x1170082b0 WebCore::ThreadTimers::sharedTimerFiredInternal()
14  0x1170094f1 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
15  0x1170094bd void std::__1::__invoke_void_return_wrapper<void>::__call<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&>(WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&&&)
16  0x117009469 std::__1::__function::__func<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, std::__1::allocator<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0>, void ()>::operator()()
17  0x11448af0a std::__1::function<void ()>::operator()() const
18  0x11629c448 WebCore::MainThreadSharedTimer::fired()
19  0x11629c7d9 WebCore::timerFired(__CFRunLoopTimer*, void*)
20  0x7fffb8db4e04 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
21  0x7fffb8db4a93 __CFRunLoopDoTimer
22  0x7fffb8db45ea __CFRunLoopDoTimers
23  0x7fffb8dabfc1 __CFRunLoopRun
24  0x7fffb8dab544 CFRunLoopRunSpecific
25  0x7fffb830bebc RunCurrentEventLoopInMode
26  0x7fffb830bcf1 ReceiveNextEventCommon
27  0x7fffb830bb26 _BlockUntilNextEventMatchingListInModeWithFilter
28  0x7fffb68a5bf8 _DPSNextEvent
29  0x7fffb702184e -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
30  0x7fffb689a57f -[NSApplication run]
31  0x7fffb6864fb2 NSApplicationMain

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