[Webkit-unassigned] [Bug 162029] New: ASSERTION FAILED: m_items.isEmpty()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=162029

            Bug ID: 162029
           Summary: ASSERTION FAILED: m_items.isEmpty()
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

Encountered on iOS 10 WK2 with LayoutTest fast/custom-elements/attribute-changed-callback.html

https://build.webkit.org/results/Apple%20iOS%2010%20Simulator%20Debug%20WK2%20(Tests)/r205989%20(50)/results.html

ASSERTION FAILED: m_items.isEmpty()
/Volumes/Data/slave/ios-simulator-10-debug/build/Source/WebCore/dom/CustomElementReactionQueue.cpp(114) : WebCore::CustomElementReactionQueue::~CustomElementReactionQueue()
1   0x10d74896d WTFCrash
2   0x10fb2eef9 WebCore::CustomElementReactionQueue::~CustomElementReactionQueue()
3   0x10fb2ef85 WebCore::CustomElementReactionQueue::~CustomElementReactionQueue()
4   0x10fb2fe05 WebCore::CustomElementReactionStack::processQueue()
5   0x1105a4985 WebCore::CustomElementReactionStack::~CustomElementReactionStack()
6   0x1105a3c55 WebCore::CustomElementReactionStack::~CustomElementReactionStack()
7   0x11071cb6e WebCore::jsElementPrototypeFunctionSetAttribute(JSC::ExecState*)
8   0x4bb236de028
9   0x10d44dbc5 llint_entry
10  0x10d44e00d llint_entry
11  0x10d44db4b llint_entry
12  0x10d44dbc5 llint_entry
13  0x10d446b9e vmEntryToJavaScript
14  0x10d254339 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
15  0x10d1fc794 JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*)
16  0x10cc9367d JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
17  0x10cc9384e JSC::profiledEvaluate(JSC::ExecState*, JSC::ProfilingReason, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
18  0x11152a32b WebCore::JSMainThreadExecState::profiledEvaluate(JSC::ExecState*, JSC::ProfilingReason, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
19  0x11152a128 WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld&, WebCore::ExceptionDetails*)
20  0x11152a40d WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&, WebCore::ExceptionDetails*)
21  0x111538c4b WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&)
22  0x111537ae9 WebCore::ScriptElement::prepareScript(WTF::TextPosition const&, WebCore::ScriptElement::LegacyTypeSupport)
23  0x1101d78d1 WebCore::HTMLScriptRunner::runScript(WebCore::Element*, WTF::TextPosition const&)
24  0x1101d76ea WebCore::HTMLScriptRunner::execute(WTF::PassRefPtr<WebCore::Element>, WTF::TextPosition const&)
25  0x110102988 WebCore::HTMLDocumentParser::runScriptsForPausedTreeBuilder()
26  0x110102e03 WebCore::HTMLDocumentParser::pumpTokenizerLoop(WebCore::HTMLDocumentParser::SynchronousMode, bool, WebCore::PumpSession&)
27  0x110101ac8 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode)
28  0x11010161b WebCore::HTMLDocumentParser::pumpTokenizerIfPossible(WebCore::HTMLDocumentParser::SynchronousMode)
29  0x1101040d6 WebCore::HTMLDocumentParser::append(WTF::RefPtr<WTF::StringImpl>&&)
30  0x10fba3972 WebCore::DecodedDataDocumentParser::appendBytes(WebCore::DocumentWriter&, char const*, unsigned long)
31  0x10fcd92e9 WebCore::DocumentWriter::addData(char const*, unsigned long)
LEAK: 1 WebProcessPool

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