[Webkit-unassigned] [Bug 166008] New: ASSERTION FAILED: willBeComposited == needsToBeComposited(layer) in WebCore::RenderLayerCompositor::computeCompositingRequirements
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun Dec 18 02:45:22 PST 2016
https://bugs.webkit.org/show_bug.cgi?id=166008
Bug ID: 166008
Summary: ASSERTION FAILED: willBeComposited ==
needsToBeComposited(layer) in
WebCore::RenderLayerCompositor::computeCompositingRequ
irements
Classification: Unclassified
Product: WebKit
Version: WebKit Local Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: Layout and Rendering
Assignee: webkit-unassigned at lists.webkit.org
Reporter: hodovan at inf.u-szeged.hu
CC: simon.fraser at apple.com
Load the attached test with sut.webkittestrunner:
Checked version: f368f1d
OS: Darwin-15.6.0-x86_64-i386-64bit
<style>{}*,*{transform:skew(152deg)skewY(58rad)translate(0);position:fixed</style><video controls>
Backtrace:
ASSERTION FAILED: willBeComposited == needsToBeComposited(layer)
WebKit/Source/WebCore/rendering/RenderLayerCompositor.cpp(1431) : void WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer *, WebCore::RenderLayer &, WebCore::RenderLayerCompositor::OverlapMap &, WebCore::RenderLayerCompositor::CompositingState &, bool &, bool &)
1 0x118aec4f1 WTFCrash
2 0x121fd97c1 WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WebCore::RenderLayer&, WebCore::RenderLayerCompositor::OverlapMap&, WebCore::RenderLayerCompositor::CompositingState&, bool&, bool&)
3 0x121fd9636 WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WebCore::RenderLayer&, WebCore::RenderLayerCompositor::OverlapMap&, WebCore::RenderLayerCompositor::CompositingState&, bool&, bool&)
4 0x121fd361f WebCore::RenderLayerCompositor::updateCompositingLayers(WebCore::CompositingUpdateType, WebCore::RenderLayer*)
5 0x11e8861e4 WebCore::FrameView::updateCompositingLayersAfterLayout()
6 0x11e88be17 WebCore::FrameView::layout(bool)
7 0x11df0b6fa WebCore::Document::updateLayout()
8 0x11df13fc1 WebCore::Document::updateLayoutIgnorePendingStylesheets(WebCore::Document::RunPostLayoutTasks)
9 0x11e2b3416 WebCore::Element::getBoundingClientRect()
10 0x11fdcd095 WebCore::jsElementPrototypeFunctionGetBoundingClientRect(JSC::ExecState*)
11 0x342a60601028
12 0x118171994 llint_entry
13 0x118171994 llint_entry
14 0x118171994 llint_entry
15 0x118171994 llint_entry
16 0x118171994 llint_entry
17 0x118171994 llint_entry
18 0x118171994 llint_entry
19 0x118171d05 llint_entry
20 0x11816a4ae vmEntryToJavaScript
21 0x117b982be JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
22 0x117a636f1 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
23 0x11654471b JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
24 0x11ed613da WebCore::HTMLMediaElement::didAddUserAgentShadowRoot(WebCore::ShadowRoot*)
25 0x11e2b89a8 WebCore::Element::addShadowRoot(WTF::Ref<WebCore::ShadowRoot>&&)
26 0x11e2b8c7b WebCore::Element::ensureUserAgentShadowRoot()
27 0x11ed4f86a WebCore::HTMLMediaElement::ensureMediaControlsShadowRoot()
28 0x11ed291ed WebCore::HTMLMediaElement::configureMediaControls()
29 0x11ed2a886 WebCore::HTMLMediaElement::insertedInto(WebCore::ContainerNode&)
30 0x11d648184 WebCore::notifyNodeInsertedIntoDocument(WebCore::ContainerNode&, WebCore::Node&, WTF::Vector<WTF::Ref<WebCore::Node>, 11ul, WTF::CrashOnOverflow, 16ul>&)
31 0x11d648a44 WebCore::notifyChildNodeInserted(WebCore::ContainerNode&, WebCore::Node&, WTF::Vector<WTF::Ref<WebCore::Node>, 11ul, WTF::CrashOnOverflow, 16ul>&)
ASAN:DEADLYSIGNAL
=================================================================
==25428==ERROR: AddressSanitizer: SEGV on unknown address 0x0000bbadbeef (pc 0x000118aec529 bp 0x7fff509bdd50 sp 0x7fff509bdd40 T0)
#0 0x118aec528 in WTFCrash (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2d01528)
#1 0x121fd97c0 in WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WebCore::RenderLayer&, WebCore::RenderLayerCompositor::OverlapMap&, WebCore::RenderLayerCompositor::CompositingState&, bool&, bool&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x52527c0)
#2 0x121fd9635 in WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WebCore::RenderLayer&, WebCore::RenderLayerCompositor::OverlapMap&, WebCore::RenderLayerCompositor::CompositingState&, bool&, bool&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x5252635)
#3 0x121fd361e in WebCore::RenderLayerCompositor::updateCompositingLayers(WebCore::CompositingUpdateType, WebCore::RenderLayer*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x524c61e)
#4 0x11e8861e3 in WebCore::FrameView::updateCompositingLayersAfterLayout() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1aff1e3)
#5 0x11e88be16 in WebCore::FrameView::layout(bool) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1b04e16)
#6 0x11df0b6f9 in WebCore::Document::updateLayout() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x11846f9)
#7 0x11df13fc0 in WebCore::Document::updateLayoutIgnorePendingStylesheets(WebCore::Document::RunPostLayoutTasks) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x118cfc0)
#8 0x11e2b3415 in WebCore::Element::getBoundingClientRect() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x152c415)
#9 0x11fdcd094 in WebCore::jsElementPrototypeFunctionGetBoundingClientRect(JSC::ExecState*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x3046094)
#10 0x342a60601027 (<unknown module>)
#11 0x118171993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
#12 0x118171993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
#13 0x118171993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
#14 0x118171993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
#15 0x118171993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
#16 0x118171993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
#17 0x118171993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
#18 0x118171d04 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386d04)
#19 0x11816a4ad in vmEntryToJavaScript (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x237f4ad)
#20 0x117b982bd in JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x1dad2bd)
#21 0x117a636f0 in JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x1c786f0)
#22 0x11654471a in JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x75971a)
#23 0x11ed613d9 in WebCore::HTMLMediaElement::didAddUserAgentShadowRoot(WebCore::ShadowRoot*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1fda3d9)
#24 0x11e2b89a7 in WebCore::Element::addShadowRoot(WTF::Ref<WebCore::ShadowRoot>&&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x15319a7)
#25 0x11e2b8c7a in WebCore::Element::ensureUserAgentShadowRoot() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1531c7a)
#26 0x11ed4f869 in WebCore::HTMLMediaElement::ensureMediaControlsShadowRoot() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1fc8869)
#27 0x11ed291ec in WebCore::HTMLMediaElement::configureMediaControls() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1fa21ec)
#28 0x11ed2a885 in WebCore::HTMLMediaElement::insertedInto(WebCore::ContainerNode&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1fa3885)
#29 0x11d648183 in WebCore::notifyNodeInsertedIntoDocument(WebCore::ContainerNode&, WebCore::Node&, WTF::Vector<WTF::Ref<WebCore::Node>, 11ul, WTF::CrashOnOverflow, 16ul>&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x8c1183)
#30 0x11d648a43 in WebCore::notifyChildNodeInserted(WebCore::ContainerNode&, WebCore::Node&, WTF::Vector<WTF::Ref<WebCore::Node>, 11ul, WTF::CrashOnOverflow, 16ul>&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x8c1a43)
#31 0x11d6251a9 in WebCore::ContainerNode::notifyChildInserted(WebCore::Node&, WebCore::ContainerNode::ChildChangeSource) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x89e1a9)
#32 0x11d62370d in WebCore::ContainerNode::parserAppendChild(WebCore::Node&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x89c70d)
#33 0x11ebc42c2 in WebCore::insert(WebCore::HTMLConstructionSiteTask&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1e3d2c2)
#34 0x11ebc3d6e in WebCore::executeInsertTask(WebCore::HTMLConstructionSiteTask&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1e3cd6e)
#35 0x11ebbcbc1 in WebCore::executeTask(WebCore::HTMLConstructionSiteTask&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1e35bc1)
#36 0x11ebbca98 in WebCore::HTMLConstructionSite::executeQueuedTasks() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1e35a98)
#37 0x11eea46a2 in WebCore::HTMLTreeBuilder::constructTree(WebCore::AtomicHTMLToken&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x211d6a2)
#38 0x11ec30576 in WebCore::HTMLDocumentParser::constructTreeFromHTMLToken(WebCore::HTMLTokenizer::TokenPtr&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1ea9576)
#39 0x11ec302d2 in WebCore::HTMLDocumentParser::pumpTokenizerLoop(WebCore::HTMLDocumentParser::SynchronousMode, bool, WebCore::PumpSession&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1ea92d2)
#40 0x11ec2deb2 in WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1ea6eb2)
#41 0x11ec2d86f in WebCore::HTMLDocumentParser::pumpTokenizerIfPossible(WebCore::HTMLDocumentParser::SynchronousMode) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1ea686f)
#42 0x11ec31afb in WebCore::HTMLDocumentParser::append(WTF::RefPtr<WTF::StringImpl>&&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1eaaafb)
#43 0x11dddf1eb in WebCore::DecodedDataDocumentParser::appendBytes(WebCore::DocumentWriter&, char const*, unsigned long) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x10581eb)
#44 0x11e0fdcf1 in WebCore::DocumentWriter::addData(char const*, unsigned long) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1376cf1)
#45 0x11e058045 in WebCore::DocumentLoader::commitData(char const*, unsigned long) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x12d1045)
#46 0x110342e4d in WebKit::WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader*, char const*, int) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x10ede4d)
#47 0x11e05d1b6 in WebCore::DocumentLoader::commitLoad(char const*, int) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x12d61b6)
#48 0x11e05cefa in WebCore::DocumentLoader::dataReceived(char const*, int) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x12d5efa)
#49 0x11e05d598 in WebCore::DocumentLoader::dataReceived(WebCore::CachedResource&, char const*, int) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x12d6598)
#50 0x11d38d931 in WebCore::CachedRawResource::notifyClientsDataWasReceived(char const*, unsigned int) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x606931)
#51 0x11d38d5e0 in WebCore::CachedRawResource::addDataBuffer(WebCore::SharedBuffer&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x6065e0)
#52 0x122e8991a in WebCore::SubresourceLoader::didReceiveDataOrBuffer(char const*, int, WTF::RefPtr<WebCore::SharedBuffer>&&, long long, WebCore::DataPayloadType) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x610291a)
#53 0x122e89250 in WebCore::SubresourceLoader::didReceiveData(char const*, unsigned int, long long, WebCore::DataPayloadType) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x6102250)
#54 0x110ce61fa in WebKit::WebResourceLoader::didReceiveData(IPC::DataReference const&, long long) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a911fa)
#55 0x110cf4003 in void IPC::callMemberFunctionImpl<WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(IPC::DataReference const&, long long), std::__1::tuple<IPC::DataReference, long long>, 0ul, 1ul>(WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(IPC::DataReference const&, long long), std::__1::tuple<IPC::DataReference, long long>&&, std::__1::integer_sequence<unsigned long, 0ul, 1ul>) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9f003)
#56 0x110cf3b04 in void IPC::callMemberFunction<WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(IPC::DataReference const&, long long), std::__1::tuple<IPC::DataReference, long long>, std::__1::integer_sequence<unsigned long, 0ul, 1ul> >(std::__1::tuple<IPC::DataReference, long long>&&, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(IPC::DataReference const&, long long)) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9eb04)
#57 0x110cf1211 in void IPC::handleMessage<Messages::WebResourceLoader::DidReceiveData, WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(IPC::DataReference const&, long long)>(IPC::Decoder&, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(IPC::DataReference const&, long long)) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9c211)
#58 0x110cef7c0 in WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::Decoder&) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9a7c0)
#59 0x10fa18da9 in WebKit::NetworkProcessConnection::didReceiveMessage(IPC::Connection&, IPC::Decoder&) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x7c3da9)
#60 0x10f42cfba in IPC::Connection::dispatchMessage(IPC::Decoder&) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1d7fba)
#61 0x10f4157c4 in IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1c07c4)
#62 0x10f42dca5 in IPC::Connection::dispatchOneMessage() (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1d8ca5)
#63 0x10f43e25c in IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_14::operator()() (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1e925c)
#64 0x10f43e188 in WTF::Function<void ()>::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_14>::call() (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1e9188)
#65 0x118b70830 in WTF::Function<void ()>::operator()() const (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2d85830)
#66 0x118bbac46 in WTF::RunLoop::performWork() (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2dcfc46)
#67 0x118bbbb11 in WTF::RunLoop::performWork(void*) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2dd0b11)
#68 0x7fff81c1f880 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0xaa880)
#69 0x7fff81bfefbb in __CFRunLoopDoSources0 (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0x89fbb)
#70 0x7fff81bfe4de in __CFRunLoopRun (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0x894de)
#71 0x7fff81bfded7 in CFRunLoopRunSpecific (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0x88ed7)
#72 0x7fff82fde934 in RunCurrentEventLoopInMode (/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox+0x30934)
#73 0x7fff82fde76e in ReceiveNextEventCommon (/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox+0x3076e)
#74 0x7fff82fde5ae in _BlockUntilNextEventMatchingListInModeWithFilter (/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox+0x305ae)
#75 0x7fff8e643df5 in _DPSNextEvent (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x48df5)
#76 0x7fff8e643225 in -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x48225)
#77 0x7fff8e637d7f in -[NSApplication run] (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x3cd7f)
#78 0x7fff8e601367 in NSApplicationMain (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x6367)
#79 0x7fff92f09193 in _xpc_objc_main (/usr/lib/system/libxpc.dylib+0x11193)
#80 0x7fff92f07bbd in xpc_main (/usr/lib/system/libxpc.dylib+0xfbbd)
#81 0x10f239f73 in main (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/XPCServices/com.apple.WebKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent.Development+0x100001f73)
#82 0x7fff8ab8d5ac in start (/usr/lib/system/libdyld.dylib+0x35ac)
#83 0x0 (<unknown module>)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2d01528) in WTFCrash
==25428==ABORTING
#CRASHED - com.apple.WebKit.WebContent.Development (pid 25428)
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