[Webkit-unassigned] [Bug 187145] New: Crash inWebCore::WebAnimation::timeToNextRequiredTick

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187145

            Bug ID: 187145
           Summary: Crash inWebCore::WebAnimation::timeToNextRequiredTick
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: dino at apple.com

Layout test imported/w3c/web-platform-tests/web-animations/interfaces/Animatable/animate-no-browsing-context.html is crashing on the EWS in bug #186536, where I fix WTF's internal std::optional to crash when dereferencing nullopt (instead of returning 0 as it currently does). We'll likely add a crash expectation, which should be removed when this is fixed.

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore            0x0000000108d57170 WTFCrash + 16 (Assertions.cpp:267)
1   com.apple.WebCore                   0x0000000115378439 std::optional<WTF::Seconds>::value() + 73 (Optional.h:562)
2   com.apple.WebCore                   0x000000011539b39f WebCore::WebAnimation::timeToNextRequiredTick() const + 207 (WebAnimation.cpp:1027)
3   com.apple.WebCore                   0x000000011539b124 WebCore::DocumentTimeline::updateAnimationSchedule() + 228 (DocumentTimeline.cpp:196)
4   com.apple.WebCore                   0x000000011539af0c WebCore::DocumentTimeline::performInvalidationTask() + 220 (DocumentTimeline.cpp:178)
5   com.apple.WebCore                   0x00000001153bf73d WTF::Function<void ()>::CallableWrapper<std::__1::__bind<void (WebCore::DocumentTimeline::*)(), WebCore::DocumentTimeline*> >::call() + 221 (Function.h:101)
6   com.apple.WebCore                   0x0000000113b2972b WTF::Function<void ()>::operator()() const + 139 (Function.h:56)
7   com.apple.WebCore                   0x0000000114249d59 WebCore::GenericTaskQueue<WebCore::Timer>::enqueueTask(WTF::Function<void ()>&&)::'lambda'()::operator()() const + 137 (GenericTaskQueue.h:95)
8   com.apple.WebCore                   0x0000000114249b69 WTF::Function<void ()>::CallableWrapper<WebCore::GenericTaskQueue<WebCore::Timer>::enqueueTask(WTF::Function<void ()>&&)::'lambda'()>::call() + 25 (Function.h:101)
9   com.apple.WebCore                   0x0000000113b2972b WTF::Function<void ()>::operator()() const + 139 (Function.h:56)
10  com.apple.WebCore                   0x000000011644d9c7 WebCore::TaskDispatcher<WebCore::Timer>::dispatchOneTask() + 119 (GenericTaskQueue.cpp:80)
11  com.apple.WebCore                   0x000000011644d77f WebCore::TaskDispatcher<WebCore::Timer>::sharedTimerFired() + 255 (GenericTaskQueue.cpp:66)
12  com.apple.WebCore                   0x0000000116451d01 WebCore::TaskDispatcher<WebCore::Timer>::sharedTimer()::$_1::operator()() const + 17 (GenericTaskQueue.cpp:49)
13  com.apple.WebCore                   0x0000000116451cc9 WTF::Function<void ()>::CallableWrapper<WebCore::TaskDispatcher<WebCore::Timer>::sharedTimer()::$_1>::call() + 25 (Function.h:101)
14  com.apple.WebCore                   0x0000000113b2972b WTF::Function<void ()>::operator()() const + 139 (Function.h:56)
15  com.apple.WebCore                   0x0000000113b7c0d9 WebCore::Timer::fired() + 25 (Timer.h:132)
16  com.apple.WebCore                   0x0000000116486770 WebCore::ThreadTimers::sharedTimerFiredInternal() + 480 (ThreadTimers.cpp:117)
17  com.apple.WebCore                   0x000000011649c161 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const + 33 (ThreadTimers.cpp:69)
18  com.apple.WebCore                   0x000000011649c119 WTF::Function<void ()>::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0>::call() + 25 (Function.h:101)
19  com.apple.WebCore                   0x0000000113b2972b WTF::Function<void ()>::operator()() const + 139 (Function.h:56)
20  com.apple.WebCore                   0x000000011645e575 WebCore::MainThreadSharedTimer::fired() + 101 (MainThreadSharedTimer.cpp:55)
21  com.apple.WebCore                   0x0000000116503dd9 WebCore::timerFired(__CFRunLoopTimer*, void*) + 41 (MainThreadSharedTimerCF.cpp:74)
22  com.apple.CoreFoundation            0x00007fffca6afe04 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
23  com.apple.CoreFoundation            0x00007fffca6afa93 __CFRunLoopDoTimer + 1075
24  com.apple.CoreFoundation            0x00007fffca6af5ea __CFRunLoopDoTimers + 298
25  com.apple.CoreFoundation            0x00007fffca6a6fc1 __CFRunLoopRun + 2081
26  com.apple.CoreFoundation            0x00007fffca6a6544 CFRunLoopRunSpecific + 420
27  DumpRenderTree                      0x000000010842d529 runTest(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 7129 (DumpRenderTree.mm:2024)
28  DumpRenderTree                      0x000000010842b8ad runTestingServerLoop() + 349 (DumpRenderTree.mm:1166)
29  DumpRenderTree                      0x000000010842ae14 dumpRenderTree(int, char const**) + 1636 (DumpRenderTree.mm:1268)
30  DumpRenderTree                      0x000000010842df1f DumpRenderTreeMain(int, char const**) + 111 (DumpRenderTree.mm:1387)
31  DumpRenderTree                      0x00000001084af8e2 main + 34 (DumpRenderTreeMain.mm:34)
32  libdyld.dylib                       0x00007fffe026f235 start + 1

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