e.g. Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.WebCore 0x00000002e0025651 WebCore::ScriptController::canExecuteScripts(WebCore::ReasonForCallingCanExecuteScripts) + 529 1 com.apple.WebCore 0x00000002e0ae15ba WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&) + 346 2 com.apple.WebCore 0x00000002e0d108d1 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener, WTF::DumbPtrTraits<WebCore::RegisteredEventListener> >, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>) + 801 3 com.apple.WebCore 0x00000002e0d0d31d WebCore::EventTarget::fireEventListeners(WebCore::Event&) + 525 4 com.apple.WebCore 0x00000002e0d0d0f8 WebCore::EventContext::handleLocalEvents(WebCore::Event&) const + 104 5 com.apple.WebCore 0x00000002e0d0ddad WebCore::dispatchEventInDOM(WebCore::Event&, WebCore::EventPath const&) + 93 6 com.apple.WebCore 0x00000002e0d0da88 WebCore::EventDispatcher::dispatchEvent(WebCore::Node&, WebCore::Event&) + 792 7 com.apple.WebCore 0x00000002e007021f WebCore::Node::dispatchBeforeLoadEvent(WTF::String const&) + 127 8 com.apple.WebCore 0x00000002e00c57e6 WebCore::ImageLoader::dispatchPendingBeforeLoadEvent() + 118 9 com.apple.WebCore 0x00000002e00c962d WebCore::ImageLoader::dispatchPendingEvent(WebCore::EventSender<WebCore::ImageLoader>*) + 45 10 com.apple.WebCore 0x00000002e005f107 WebCore::EventSender<WebCore::ImageLoader>::dispatchPendingEvents() + 151 11 com.apple.WebCore 0x00000002e15057df WebCore::XMLDocumentParser::append(WTF::RefPtr<WTF::StringImpl, WTF::DumbPtrTraits<WTF::StringImpl> >&&) + 127 12 com.apple.WebCore 0x00000002e0138a3b WebCore::Document::setContent(WTF::String const&) + 59 13 com.apple.WebCore 0x00000002e0fea0bc WebCore::CachedSVGFont::ensureCustomFontData(WTF::AtomicString const&) + 364 14 com.apple.WebCore 0x00000002e0bdbfd6 WebCore::CSSFontFaceSource::fontLoaded(WebCore::CachedFont&) + 86 15 com.apple.WebCore 0x00000002e0bdbad7 WebCore::CSSFontFaceSource::CSSFontFaceSource(WebCore::CSSFontFace&, WTF::String const&, WebCore::CachedFont*, WebCore::SVGFontFaceElement*, WTF::RefPtr<JSC::ArrayBufferView, WTF::DumbPtrTraits<JSC::ArrayBufferView> >&&) + 183 16 com.apple.WebCore 0x00000002e0bd2b68 WebCore::CSSFontFace::appendSources(WebCore::CSSFontFace&, WebCore::CSSValueList&, WebCore::Document*, bool) + 376 17 com.apple.WebCore 0x00000002e0bdd5d3 WebCore::CSSFontSelector::addFontFaceRule(WebCore::StyleRuleFontFace&, bool) + 899 18 com.apple.WebCore 0x00000002e0c2a498 WebCore::RuleSet::addChildRules(WTF::Vector<WTF::RefPtr<WebCore::StyleRuleBase, WTF::DumbPtrTraits<WebCore::StyleRuleBase> >, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebCore::MediaQueryEvaluator const&, WebCore::StyleResolver*, bool) + 392 19 com.apple.WebCore 0x00000002e0c2a5c1 WebCore::RuleSet::addRulesFromSheet(WebCore::StyleSheetContents&, WebCore::MediaQueryEvaluator const&, WebCore::StyleResolver*) + 145 20 com.apple.WebCore 0x00000002e0c0db81 WebCore::DocumentRuleSets::appendAuthorStyleSheets(WTF::Vector<WTF::RefPtr<WebCore::CSSStyleSheet, WTF::DumbPtrTraits<WebCore::CSSStyleSheet> >, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebCore::MediaQueryEvaluator*, WebCore::InspectorCSSOMWrappers&, WebCore::StyleResolver*) + 97 21 com.apple.WebCore 0x00000002e0c3a58f WebCore::StyleResolver::appendAuthorStyleSheets(WTF::Vector<WTF::RefPtr<WebCore::CSSStyleSheet, WTF::DumbPtrTraits<WebCore::CSSStyleSheet> >, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&) + 31 22 com.apple.WebCore 0x00000002e13ef0d0 WebCore::Style::Scope::updateStyleResolver(WTF::Vector<WTF::RefPtr<WebCore::CSSStyleSheet, WTF::DumbPtrTraits<WebCore::CSSStyleSheet> >, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::Style::Scope::StyleResolverUpdateType) + 208 23 com.apple.WebCore 0x00000002e13eecb8 WebCore::Style::Scope::updateActiveStyleSheets(WebCore::Style::Scope::UpdateType) + 1320 24 com.apple.WebCore 0x00000002e003012e WebCore::Document::updateStyleIfNeeded() + 126 25 com.apple.WebCore 0x00000002e000d590 WebCore::ThreadTimers::sharedTimerFiredInternal() + 176 26 com.apple.WebCore 0x00000002e000d4cf WebCore::timerFired(__CFRunLoopTimer*, void*) + 31 27 com.apple.CoreFoundation 0x00007fff27de5064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20 28 com.apple.CoreFoundation 0x00007fff27de4cd7 __CFRunLoopDoTimer + 1095 29 com.apple.CoreFoundation 0x00007fff27de47da __CFRunLoopDoTimers + 346 30 com.apple.CoreFoundation 0x00007fff27ddbdab __CFRunLoopRun + 2427 31 com.apple.CoreFoundation 0x00007fff27ddb1a3 CFRunLoopRunSpecific + 483 32 com.apple.HIToolbox 0x00007fff270c3d96 RunCurrentEventLoopInMode + 286 33 com.apple.HIToolbox 0x00007fff270c3b06 ReceiveNextEventCommon + 613 34 com.apple.HIToolbox 0x00007fff270c3884 _BlockUntilNextEventMatchingListInModeWithFilter + 64 35 com.apple.AppKit 0x00007fff25376a73 _DPSNextEvent + 2085 36 com.apple.AppKit 0x00007fff25b0ce34 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044 37 com.apple.AppKit 0x00007fff2536b885 -[NSApplication run] + 764 38 com.apple.AppKit 0x00007fff2533aa72 NSApplicationMain + 804 39 libxpc.dylib 0x00007fff5042cf57 _xpc_objc_main + 580 40 libxpc.dylib 0x00007fff5042bbaa xpc_main + 417 <rdar://problem/39578592>
Created attachment 338697 [details] Fixes the crash
Committed r230983: <https://trac.webkit.org/changeset/230983>
<rdar://problem/39709331>