<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>159303</bug_id>
          
          <creation_ts>2016-06-30 10:00:06 -0700</creation_ts>
          <short_desc>REGRESSION(r202659?): LayoutTest inspector/model/scope-chain-node.html crashes</short_desc>
          <delta_ts>2016-06-30 15:31:19 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Web Inspector</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>DUPLICATE</resolution>
          <dup_id>158210</dup_id>
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=158210</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Ryan Haddad">ryanhaddad</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>bburg</cc>
    
    <cc>joepeck</cc>
    
    <cc>mattbaker</cc>
    
    <cc>nvasilyev</cc>
    
    <cc>timothy</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1206756</commentid>
    <comment_count>0</comment_count>
    <who name="Ryan Haddad">ryanhaddad</who>
    <bug_when>2016-06-30 10:00:06 -0700</bug_when>
    <thetext>LayoutTest inspector/model/scope-chain-node.html crashes

https://build.webkit.org/builders/Apple%20El%20Capitan%20Debug%20WK2%20(Tests)/builds/6239

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&amp;tests=inspector%2Fmodel%2Fscope-chain-node.html

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore      	0x0000000106b0c51c JSC::WeakSet::heap() const + 12 (VM.h:699)
1   com.apple.JavaScriptCore      	0x0000000106b0c4fc JSC::MarkedBlock::heap() const + 28 (MarkedBlock.h:245)
2   com.apple.JavaScriptCore      	0x0000000106b0c42d JSC::Heap::heap(JSC::JSCell const*) + 29 (HeapInlines.h:64)
3   com.apple.JavaScriptCore      	0x0000000106b12519 JSC::JSCell::structure() const + 25 (JSCellInlines.h:102)
4   com.apple.JavaScriptCore      	0x0000000107585106 JSC::slowValidateCell(JSC::JSCell*) + 86 (JSCell.cpp:188)
5   com.apple.JavaScriptCore      	0x0000000106b125f5 void JSC::validateCell&lt;JSC::JSCell*&gt;(JSC::JSCell*) + 21 (WriteBarrier.h:59)
6   com.apple.JavaScriptCore      	0x0000000106c249de JSC::WriteBarrierBase&lt;JSC::ExecutableBase&gt;::get() const + 46 (WriteBarrier.h:95)
7   com.apple.JavaScriptCore      	0x0000000106d96e6c JSC::CodeBlock::ownerScriptExecutable() const + 28 (CodeBlock.h:349)
8   com.apple.JavaScriptCore      	0x0000000106e661d4 JSC::DebuggerScope::location() const + 132 (DebuggerScope.cpp:236)
9   com.apple.JavaScriptCore      	0x000000010760766b Inspector::JSJavaScriptCallFrame::scopeDescriptions(JSC::ExecState*) + 603 (JSJavaScriptCallFrame.cpp:144)
10  com.apple.JavaScriptCore      	0x000000010760d4ab Inspector::jsJavaScriptCallFramePrototypeFunctionScopeDescriptions(JSC::ExecState*) + 91 (JSJavaScriptCallFramePrototype.cpp:94)
11  ???                           	0x00004000a2201028 0 + 70371464187944
12  com.apple.JavaScriptCore      	0x000000010773547c llint_entry + 28040
13  com.apple.JavaScriptCore      	0x000000010773547c llint_entry + 28040
14  com.apple.JavaScriptCore      	0x00000001077357ed llint_entry + 28921
15  com.apple.JavaScriptCore      	0x000000010772e4de vmEntryToJavaScript + 334
16  com.apple.JavaScriptCore      	0x000000010751eb6a JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 218 (JITCode.cpp:80)
17  com.apple.JavaScriptCore      	0x00000001074a9cd5 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 997 (Interpreter.cpp:1015)
18  com.apple.JavaScriptCore      	0x0000000106d5824e JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 190 (CallData.cpp:40)
19  com.apple.JavaScriptCore      	0x0000000106d582b3 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) + 83 (CallData.cpp:45)
20  com.apple.WebCore             	0x000000010af845cb WebCore::JSMainThreadExecState::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) + 107 (JSMainThreadExecState.h:57)
21  com.apple.WebCore             	0x000000010b221f6d WebCore::functionCallHandlerFromAnyThread(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) + 109 (JSMainThreadExecState.cpp:44)
22  com.apple.JavaScriptCore      	0x00000001079346ce Deprecated::ScriptFunctionCall::call(bool&amp;) + 478 (ScriptFunctionCall.cpp:124)
23  com.apple.JavaScriptCore      	0x00000001073fc495 Inspector::InjectedScriptBase::callFunctionWithEvalEnabled(Deprecated::ScriptFunctionCall&amp;, bool&amp;) const + 69 (InjectedScriptBase.cpp:75)
24  com.apple.JavaScriptCore      	0x00000001073f9456 Inspector::InjectedScript::wrapCallFrames(JSC::JSValue) const + 310 (InjectedScript.cpp:221)
25  com.apple.JavaScriptCore      	0x0000000107468aab Inspector::InspectorDebuggerAgent::currentCallFrames(Inspector::InjectedScript const&amp;) + 187 (InspectorDebuggerAgent.cpp:617)
26  com.apple.JavaScriptCore      	0x00000001074698e5 Inspector::InspectorDebuggerAgent::didPause(JSC::ExecState&amp;, JSC::JSValue, JSC::JSValue) + 821 (InspectorDebuggerAgent.cpp:726)
27  com.apple.JavaScriptCore      	0x0000000107469aff non-virtual thunk to Inspector::InspectorDebuggerAgent::didPause(JSC::ExecState&amp;, JSC::JSValue, JSC::JSValue) + 63 (InspectorDebuggerAgent.cpp:680)
28  com.apple.JavaScriptCore      	0x000000010792ca03 Inspector::ScriptDebugServer::dispatchDidPause(Inspector::ScriptDebugListener*) + 307 (ScriptDebugServer.cpp:138)
29  com.apple.JavaScriptCore      	0x000000010792d285 Inspector::ScriptDebugServer::dispatchFunctionToListeners(WTF::HashSet&lt;Inspector::ScriptDebugListener*, WTF::PtrHash&lt;Inspector::ScriptDebugListener*&gt;, WTF::HashTraits&lt;Inspector::ScriptDebugListener*&gt; &gt; const&amp;, void (Inspector::ScriptDebugServer::*)(Inspector::ScriptDebugListener*)) + 229 (ScriptDebugServer.cpp:276)
30  com.apple.JavaScriptCore      	0x000000010792d187 Inspector::ScriptDebugServer::dispatchFunctionToListeners(void (Inspector::ScriptDebugServer::*)(Inspector::ScriptDebugListener*)) + 167 (ScriptDebugServer.cpp:269)
31  com.apple.JavaScriptCore      	0x000000010792d599 Inspector::ScriptDebugServer::handlePause(JSC::JSGlobalObject*, JSC::Debugger::ReasonForPause) + 73 (ScriptDebugServer.cpp:311)
32  com.apple.JavaScriptCore      	0x0000000106e4bd8d JSC::Debugger::pauseIfNeeded(JSC::ExecState*) + 637 (Debugger.cpp:661)
33  com.apple.JavaScriptCore      	0x0000000106e4c04c JSC::Debugger::updateCallFrameAndPauseIfNeeded(JSC::ExecState*) + 60 (Debugger.cpp:613)
34  com.apple.JavaScriptCore      	0x0000000106e4c4e4 JSC::Debugger::didReachBreakpoint(JSC::ExecState*) + 100 (Debugger.cpp:768)
35  com.apple.JavaScriptCore      	0x00000001074aac4b JSC::Interpreter::debug(JSC::ExecState*, JSC::DebugHookID) + 347 (Interpreter.cpp:1309)
36  com.apple.JavaScriptCore      	0x0000000107729104 llint_slow_path_debug + 116 (LLIntSlowPaths.cpp:1496)
37  com.apple.JavaScriptCore      	0x0000000107735faa llint_entry + 30902
38  com.apple.JavaScriptCore      	0x000000010773547c llint_entry + 28040
39  com.apple.JavaScriptCore      	0x000000010773547c llint_entry + 28040
40  com.apple.JavaScriptCore      	0x000000010772e4de vmEntryToJavaScript + 334
41  com.apple.JavaScriptCore      	0x000000010751eb6a JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 218 (JITCode.cpp:80)
42  com.apple.JavaScriptCore      	0x00000001074a9cd5 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 997 (Interpreter.cpp:1015)
43  com.apple.JavaScriptCore      	0x0000000106d5824e JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 190 (CallData.cpp:40)
44  com.apple.JavaScriptCore      	0x0000000106d582b3 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) + 83 (CallData.cpp:45)
45  com.apple.JavaScriptCore      	0x0000000106d584ab JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) + 139 (CallData.cpp:64)
46  com.apple.WebCore             	0x000000010aef4a8b WebCore::JSMainThreadExecState::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) + 139 (JSMainThreadExecState.h:75)
47  com.apple.WebCore             	0x000000010bded983 WebCore::ScheduledAction::executeFunctionInContext(JSC::JSGlobalObject*, JSC::JSValue, WebCore::ScriptExecutionContext&amp;) + 563 (ScheduledAction.cpp:104)
48  com.apple.WebCore             	0x000000010bded582 WebCore::ScheduledAction::execute(WebCore::Document&amp;) + 274 (ScheduledAction.cpp:125)
49  com.apple.WebCore             	0x000000010bded443 WebCore::ScheduledAction::execute(WebCore::ScriptExecutionContext&amp;) + 67 (ScheduledAction.cpp:78)
50  com.apple.WebCore             	0x000000010a685888 WebCore::DOMTimer::fired() + 952 (DOMTimer.cpp:348)
51  com.apple.WebCore             	0x000000010c2d013a WebCore::ThreadTimers::sharedTimerFiredInternal() + 394 (ThreadTimers.cpp:124)
52  com.apple.WebCore             	0x000000010c2d1381 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const + 33 (ThreadTimers.cpp:73)
53  com.apple.WebCore             	0x000000010c2d134d void std::__1::__invoke_void_return_wrapper&lt;void&gt;::__call&lt;WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&amp;&gt;(WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&amp;&amp;&amp;) + 45 (__functional_base:441)
54  com.apple.WebCore             	0x000000010c2d12ec std::__1::__function::__func&lt;WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, std::__1::allocator&lt;WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&gt;, void ()&gt;::operator()() + 44 (functional:1407)
55  com.apple.WebCore             	0x0000000109ed8b2a std::__1::function&lt;void ()&gt;::operator()() const + 26 (functional:1793)
56  com.apple.WebCore             	0x000000010b65235f WebCore::MainThreadSharedTimer::fired() + 111 (MainThreadSharedTimer.cpp:53)
57  com.apple.WebCore             	0x000000010b652759 WebCore::timerFired(__CFRunLoopTimer*, void*) + 41 (MainThreadSharedTimerCF.cpp:74)
58  com.apple.CoreFoundation      	0x00007fff8e811b94 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
59  com.apple.CoreFoundation      	0x00007fff8e811823 __CFRunLoopDoTimer + 1075
60  com.apple.CoreFoundation      	0x00007fff8e81137a __CFRunLoopDoTimers + 298
61  com.apple.CoreFoundation      	0x00007fff8e808871 __CFRunLoopRun + 1841
62  com.apple.CoreFoundation      	0x00007fff8e807ed8 CFRunLoopRunSpecific + 296
63  com.apple.HIToolbox           	0x00007fff91fb2935 RunCurrentEventLoopInMode + 235
64  com.apple.HIToolbox           	0x00007fff91fb276f ReceiveNextEventCommon + 432
65  com.apple.HIToolbox           	0x00007fff91fb25af _BlockUntilNextEventMatchingListInModeWithFilter + 71
66  com.apple.AppKit              	0x00007fff92301df6 _DPSNextEvent + 1067
67  com.apple.AppKit              	0x00007fff92301226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
68  com.apple.AppKit              	0x00007fff922f5d80 -[NSApplication run] + 682
69  com.apple.AppKit              	0x00007fff922bf368 NSApplicationMain + 1176
70  libxpc.dylib                  	0x00000001060a5194 _xpc_objc_main + 795
71  libxpc.dylib                  	0x00000001060a3bbe xpc_main + 494
72  com.apple.WebKit.WebContent.Development	0x0000000102bd7110 main + 800
73  libdyld.dylib                 	0x00007fff8e01d5ad start + 1</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1206760</commentid>
    <comment_count>1</comment_count>
    <who name="Ryan Haddad">ryanhaddad</who>
    <bug_when>2016-06-30 10:06:41 -0700</bug_when>
    <thetext>Seems to have started with &lt;https://trac.webkit.org/changeset/202659&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1206763</commentid>
    <comment_count>2</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2016-06-30 10:09:01 -0700</bug_when>
    <thetext>&lt;rdar://problem/27108882&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1206896</commentid>
    <comment_count>3</comment_count>
    <who name="Ryan Haddad">ryanhaddad</who>
    <bug_when>2016-06-30 15:31:19 -0700</bug_when>
    <thetext>Duping to original bug since the change was rolled out.

*** This bug has been marked as a duplicate of bug 158210 ***</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>