<?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>85811</bug_id>
          
          <creation_ts>2012-05-07 11:21:12 -0700</creation_ts>
          <short_desc>fast/events/message-port-clone.html hits ASSERT in Debug (usually in later tests)</short_desc>
          <delta_ts>2012-09-01 12:42:28 -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>DOM</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc>http://build.webkit.org/results/GTK%20Linux%2064-bit%20Debug/r116315%20(33088)/results.html</bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar, LayoutTestFailure, MakingBotsRed, Regression</keywords>
          <priority>P1</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Philippe Normand">pnormand</reporter>
          <assigned_to name="Li Yin">li.yin</assigned_to>
          <cc>ap</cc>
    
    <cc>atwilson</cc>
    
    <cc>jberlin</cc>
    
    <cc>li.yin</cc>
    
    <cc>mhahnenberg</cc>
    
    <cc>ossy</cc>
    
    <cc>slewis</cc>
    
    <cc>tmpsantos</cc>
    
    <cc>webkit.review.bot</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>617750</commentid>
    <comment_count>0</comment_count>
    <who name="Philippe Normand">pnormand</who>
    <bug_when>2012-05-07 11:21:12 -0700</bug_when>
    <thetext>#0  0x00007f856a636223 in WebCore::MessagePort::contextDestroyed (this=0x77f0d60) at ../../Source/WebCore/dom/MessagePort.cpp:158
158	    ASSERT(m_closed);


Thread 1 (Thread 0x7f856ed9d900 (LWP 20470)):
#0  0x00007f856a636223 in WebCore::MessagePort::contextDestroyed (this=0x77f0d60) at ../../Source/WebCore/dom/MessagePort.cpp:158
#1  0x00007f856a67f81a in WebCore::ScriptExecutionContext::~ScriptExecutionContext (this=0x77027e8, __in_chrg=&lt;optimized out&gt;) at ../../Source/WebCore/dom/ScriptExecutionContext.cpp:113
#2  0x00007f856a5b6778 in WebCore::Document::~Document (this=0x77026c0, __in_chrg=&lt;optimized out&gt;) at ../../Source/WebCore/dom/Document.cpp:631
#3  0x00007f856a7b3626 in WebCore::HTMLDocument::~HTMLDocument (this=0x77026c0, __in_chrg=&lt;optimized out&gt;) at ../../Source/WebCore/html/HTMLDocument.cpp:91
#4  0x00007f856a5cceac in WebCore::Document::guardDeref (this=0x77026c0) at ../../Source/WebCore/dom/Document.h:255
#5  0x00007f856a5b80fb in WebCore::Document::removedLastRef (this=0x77026c0) at ../../Source/WebCore/dom/Document.cpp:678
#6  0x00007f856a1c842a in WebCore::TreeShared&lt;WebCore::ContainerNode&gt;::deref (this=0x77026d0) at ../../Source/WebCore/platform/TreeShared.h:79
#7  0x00007f856a380854 in WebCore::JSNode::releaseImpl (this=0x7f851d58c660) at ./DerivedSources/WebCore/JSNode.h:69
#8  0x00007f856a37fd96 in WebCore::JSNodeOwner::finalize (this=0x164da10, handle=..., context=0x164d760) at ../../Source/WebCore/bindings/js/JSNodeCustom.cpp:144
#9  0x00007f856e87ddac in JSC::WeakBlock::finalize (this=0x7f851f01a000, weakImpl=0x7f851f01a318) at ../../Source/JavaScriptCore/heap/WeakBlock.h:131
#10 0x00007f856e87d5d3 in JSC::WeakBlock::sweep (this=0x7f851f01a000) at ../../Source/JavaScriptCore/heap/WeakBlock.cpp:82
#11 0x00007f856e87e3b7 in JSC::WeakSet::sweep (this=0x1c464c8) at ../../Source/JavaScriptCore/heap/WeakSet.cpp:72
#12 0x00007f856e869a85 in JSC::Heap::collect (this=0x1c45720, sweepToggle=JSC::Heap::DoSweep) at ../../Source/JavaScriptCore/heap/Heap.cpp:773
#13 0x00007f856e8698fb in JSC::Heap::collectAllGarbage (this=0x1c45720) at ../../Source/JavaScriptCore/heap/Heap.cpp:730
#14 0x00007f856a316e92 in WebCore::collect () at ../../Source/WebCore/bindings/js/GCController.cpp:42
#15 0x00007f856a316fd8 in WebCore::GCController::gcTimerFired (this=0x1d0d290) at ../../Source/WebCore/bindings/js/GCController.cpp:77
#16 0x00007f856a31724c in WebCore::Timer&lt;WebCore::GCController&gt;::fired (this=0x1d0d290) at ../../Source/WebCore/platform/Timer.h:100
#17 0x00007f856ac17c40 in WebCore::ThreadTimers::sharedTimerFiredInternal (this=0x163c270) at ../../Source/WebCore/platform/ThreadTimers.cpp:115
#18 0x00007f856ac17b77 in WebCore::ThreadTimers::sharedTimerFired () at ../../Source/WebCore/platform/ThreadTimers.cpp:93
#19 0x00007f856b6494e2 in WebCore::timeout_cb () at ../../Source/WebCore/platform/gtk/SharedTimerGtk.cpp:49
#20 0x00007f856823a058 in g_timeout_dispatch () from /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0
#21 0x00007f8568238290 in g_main_dispatch () from /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0
#22 0x00007f8568238f56 in g_main_context_dispatch () from /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0
#23 0x00007f8568239140 in g_main_context_iterate () from /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0
#24 0x00007f8568239576 in g_main_loop_run () from /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0
#25 0x00007f8568b1d62b in gtk_main () from /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Dependencies/Root/lib64/libgtk-3.so.0
#26 0x000000000045dcfb in runTest (testPathOrURL=...) at ../../Tools/DumpRenderTree/gtk/DumpRenderTree.cpp:696
#27 0x000000000045d373 in runTestingServerLoop () at ../../Tools/DumpRenderTree/gtk/DumpRenderTree.cpp:483
#28 0x000000000046038f in main (argc=2, argv=0x7fff1af4caa8) at ../../Tools/DumpRenderTree/gtk/DumpRenderTree.cpp:1378

I&apos;ll flag it in GTK test_expectations. Please unflag when a fix is provided!</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>618186</commentid>
    <comment_count>1</comment_count>
    <who name="Li Yin">li.yin</who>
    <bug_when>2012-05-07 18:11:20 -0700</bug_when>
    <thetext>(In reply to comment #0)
&gt; I&apos;ll flag it in GTK test_expectations. Please unflag when a fix is provided!

Thanks for your report, I will follow this issue.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>633358</commentid>
    <comment_count>2</comment_count>
    <who name="Jessie Berlin">jberlin</who>
    <bug_when>2012-05-24 16:39:58 -0700</bug_when>
    <thetext>This is happening on Mac as well:

http://build.webkit.org/results/Lion%20Debug%20(Tests)/r118421%20(6997)/fast/events/message-port-constructor-for-deleted-document-crash-log.txt

Process:         DumpRenderTree [93186]
Path:            /Volumes/VOLUME/*/DumpRenderTree
Identifier:      DumpRenderTree
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  Python [93185]

Date/Time:       2012-05-24 15:57:15.534 -0700
OS Version:      Mac OS X 10.7.3 (11D50)
Report Version:  9

Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000bbadbeef

VM Regions Near 0xbbadbeef:
--&gt; 
    __TEXT                 000000010c357000-000000010c3ed000 [  600K] r-x/rwx SM=COW  /Volumes/VOLUME/*

Application Specific Information:
objc[93186]: garbage collection is OFF

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore             	0x000000010e9e9a82 WebCore::MessagePort::contextDestroyed() + 178 (MessagePort.cpp:158)
1   com.apple.WebCore             	0x000000010ee41b64 WebCore::ScriptExecutionContext::~ScriptExecutionContext() + 724 (ScriptExecutionContext.cpp:113)
2   com.apple.WebCore             	0x000000010dc94040 WebCore::Document::~Document() + 3120 (Document.cpp:639)
3   com.apple.WebCore             	0x000000010e0a7ba3 WebCore::HTMLDocument::~HTMLDocument() + 163 (HTMLDocument.cpp:91)
4   com.apple.WebCore             	0x000000010e0a7a35 WebCore::HTMLDocument::~HTMLDocument() + 21 (HTMLDocument.cpp:91)
5   com.apple.WebCore             	0x000000010e0a7a09 WebCore::HTMLDocument::~HTMLDocument() + 25 (HTMLDocument.cpp:90)
6   com.apple.WebCore             	0x000000010dcad3c9 WebCore::Document::guardDeref() + 201 (Document.h:261)
7   com.apple.WebCore             	0x000000010ea13d4b WebCore::Node::~Node() + 763 (Node.cpp:419)
8   com.apple.WebCore             	0x000000010dad0a63 WebCore::ContainerNode::~ContainerNode() + 67 (ContainerNode.cpp:115)
9   com.apple.WebCore             	0x000000010de9d01a WebCore::Element::~Element() + 442 (Element.cpp:142)
10  com.apple.WebCore             	0x000000010ef74133 WebCore::StyledElement::~StyledElement() + 67 (StyledElement.cpp:132)
11  com.apple.WebCore             	0x000000010dc75a05 WebCore::HTMLElement::~HTMLElement() + 21 (HTMLElement.h:44)
12  com.apple.WebCore             	0x000000010e13e785 WebCore::HTMLPreElement::~HTMLPreElement() + 21 (HTMLPreElement.h:30)
13  com.apple.WebCore             	0x000000010e13e675 WebCore::HTMLPreElement::~HTMLPreElement() + 21 (HTMLPreElement.h:30)
14  com.apple.WebCore             	0x000000010e13e699 WebCore::HTMLPreElement::~HTMLPreElement() + 25 (HTMLPreElement.h:30)
15  com.apple.WebCore             	0x000000010e13e6fc non-virtual thunk to WebCore::HTMLPreElement::~HTMLPreElement() + 28
16  com.apple.WebCore             	0x000000010d99f732 WebCore::TreeShared&lt;WebCore::ContainerNode&gt;::removedLastRef() + 50 (TreeShared.h:119)
17  com.apple.WebCore             	0x000000010d8fd25a WebCore::TreeShared&lt;WebCore::ContainerNode&gt;::deref() + 490 (TreeShared.h:81)
18  com.apple.WebCore             	0x000000010e52ae66 WebCore::JSNode::releaseImpl() + 38 (JSNode.h:69)
19  com.apple.WebCore             	0x000000010e656069 WebCore::JSNodeOwner::finalize(JSC::Handle&lt;JSC::Unknown&gt;, void*) + 121 (JSNodeCustom.cpp:145)
20  com.apple.JavaScriptCore      	0x000000010c957967 JSC::WeakBlock::finalize(JSC::WeakImpl*) + 215 (WeakBlock.h:126)
21  com.apple.JavaScriptCore      	0x000000010c957325 JSC::WeakBlock::sweep() + 165 (WeakBlock.cpp:80)
22  com.apple.JavaScriptCore      	0x000000010c957c72 JSC::WeakSet::sweep() + 114 (WeakSet.cpp:46)
23  com.apple.JavaScriptCore      	0x000000010c826ebc JSC::MarkedBlock::sweepWeakSet() + 28 (MarkedBlock.h:293)
24  com.apple.JavaScriptCore      	0x000000010c826e99 JSC::SweepWeakSet::operator()(JSC::MarkedBlock*) + 25 (MarkedSpace.cpp:81)
25  com.apple.JavaScriptCore      	0x000000010c826e65 void JSC::MarkedAllocator::forEachBlock&lt;JSC::SweepWeakSet&gt;(JSC::SweepWeakSet&amp;) + 85 (MarkedAllocator.h:102)
26  com.apple.JavaScriptCore      	0x000000010c826d79 JSC::SweepWeakSet::ReturnType JSC::MarkedSpace::forEachBlock&lt;JSC::SweepWeakSet&gt;(JSC::SweepWeakSet&amp;) + 105 (MarkedSpace.h:196)
27  com.apple.JavaScriptCore      	0x000000010c826889 JSC::SweepWeakSet::ReturnType JSC::MarkedSpace::forEachBlock&lt;JSC::SweepWeakSet&gt;() + 25 (MarkedSpace.h:213)
28  com.apple.JavaScriptCore      	0x000000010c826315 JSC::MarkedSpace::sweepWeakSets() + 21 (MarkedSpace.cpp:148)
29  com.apple.JavaScriptCore      	0x000000010c7200d1 JSC::Heap::collect(JSC::Heap::SweepToggle) + 497 (Heap.cpp:691)
30  com.apple.JavaScriptCore      	0x000000010c721714 JSC::Heap::collectAllGarbage() + 52 (Heap.cpp:643)
31  com.apple.WebCore             	0x000000010dfd8dcb WebCore::GCController::garbageCollectNow() + 75 (GCController.cpp:85)
32  com.apple.WebKit              	0x000000010d2bde9d +[WebCoreStatistics garbageCollectJavaScriptObjects] + 29 (WebCoreStatistics.mm:116)
33  DumpRenderTree                	0x000000010c37f27f GCController::collect() const + 31 (GCControllerMac.mm:39)
34  DumpRenderTree                	0x000000010c37f136 _ZL15collectCallbackPK15OpaqueJSContextP13OpaqueJSValueS3_mPKPKS2_PS5_ + 54 (GCController.cpp:49)
35  com.apple.JavaScriptCore      	0x000000010c79a5d1 JSC::JSCallbackFunction::call(JSC::ExecState*) + 497 (JSCallbackFunction.cpp:73)
36  com.apple.JavaScriptCore      	0x000000010c944700 _ZN3JSC5LLIntL14handleHostCallEPNS_9ExecStateEPNS_11InstructionENS_7JSValueENS_22CodeSpecializationKindE + 352 (LLIntSlowPaths.cpp:1249)
37  com.apple.JavaScriptCore      	0x000000010c9455dd JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*) + 93 (LLIntSlowPaths.cpp:1293)
38  com.apple.JavaScriptCore      	0x000000010c945567 JSC::LLInt::genericCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind) + 263 (LLIntSlowPaths.cpp:1349)
39  com.apple.JavaScriptCore      	0x000000010c942a1c llint_slow_path_call + 60 (LLIntSlowPaths.cpp:1355)
40  com.apple.JavaScriptCore      	0x000000010c949b4b llint_op_call + 153
41  com.apple.JavaScriptCore      	0x000000010c73c009 JSC::JITCode::execute(JSC::RegisterFile*, JSC::ExecState*, JSC::JSGlobalData*) + 121 (JITCode.h:127)
42  com.apple.JavaScriptCore      	0x000000010c7380de JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 1902 (Interpreter.cpp:1305)
43  com.apple.JavaScriptCore      	0x000000010c5e173b JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 315 (CallData.cpp:39)
44  com.apple.WebCore             	0x000000010e39db13 WebCore::JSMainThreadExecState::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 179 (JSMainThreadExecState.h:56)
45  com.apple.WebCore             	0x000000010e4ea565 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) + 1445 (JSEventListener.cpp:132)
46  com.apple.WebCore             	0x000000010deed2e9 WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector&lt;WebCore::RegisteredEventListener, 1ul&gt;&amp;) + 393 (EventTarget.cpp:232)
47  com.apple.WebCore             	0x000000010deed12b WebCore::EventTarget::fireEventListeners(WebCore::Event*) + 331 (EventTarget.cpp:200)
48  com.apple.WebCore             	0x000000010ea1ec6b WebCore::Node::handleLocalEvents(WebCore::Event*) + 155 (Node.cpp:2697)
49  com.apple.WebCore             	0x000000010debb045 WebCore::EventContext::handleLocalEvents(WebCore::Event*) const + 293 (EventContext.cpp:53)
50  com.apple.WebCore             	0x000000010debc5a4 WebCore::EventDispatcher::dispatchEvent(WTF::PassRefPtr&lt;WebCore::Event&gt;) + 1652 (EventDispatcher.cpp:279)
51  com.apple.WebCore             	0x000000010dec2cbc WebCore::EventDispatchMediator::dispatchEvent(WebCore::EventDispatcher*) const + 76 (EventDispatchMediator.cpp:51)
52  com.apple.WebCore             	0x000000010debb82a WebCore::EventDispatcher::dispatchEvent(WebCore::Node*, WTF::PassRefPtr&lt;WebCore::EventDispatchMediator&gt;) + 154 (EventDispatcher.cpp:116)
53  com.apple.WebCore             	0x000000010ea1ed66 WebCore::Node::dispatchEvent(WTF::PassRefPtr&lt;WebCore::Event&gt;) + 70 (Node.cpp:2712)
54  com.apple.WebCore             	0x000000010de3e8c6 WebCore::DOMWindow::dispatchLoadEvent() + 758 (DOMWindow.cpp:1640)
55  com.apple.WebCore             	0x000000010dc9dc12 WebCore::Document::dispatchWindowLoadEvent() + 146 (Document.cpp:3979)
56  com.apple.WebCore             	0x000000010dc9b031 WebCore::Document::implicitClose() + 513 (Document.cpp:2442)
57  com.apple.WebCore             	0x000000010df8a5eb WebCore::FrameLoader::checkCallImplicitClose() + 155 (FrameLoader.cpp:762)
58  com.apple.WebCore             	0x000000010df8a2a5 WebCore::FrameLoader::checkCompleted() + 341 (FrameLoader.cpp:709)
59  com.apple.WebCore             	0x000000010df890a3 WebCore::FrameLoader::finishedParsing() + 179 (FrameLoader.cpp:642)
60  com.apple.WebCore             	0x000000010dca745f WebCore::Document::finishedParsing() + 591 (Document.cpp:4729)
61  com.apple.WebCore             	0x000000010e185044 WebCore::HTMLTreeBuilder::finished() + 148 (HTMLTreeBuilder.cpp:2808)
62  com.apple.WebCore             	0x000000010e0acdf3 WebCore::HTMLDocumentParser::end() + 227 (HTMLDocumentParser.cpp:382)
63  com.apple.WebCore             	0x000000010e0abd16 WebCore::HTMLDocumentParser::attemptToRunDeferredScriptsAndEnd() + 278 (HTMLDocumentParser.cpp:391)
64  com.apple.WebCore             	0x000000010e0abaec WebCore::HTMLDocumentParser::prepareToStopParsing() + 268 (HTMLDocumentParser.cpp:154)
65  com.apple.WebCore             	0x000000010e0ace43 WebCore::HTMLDocumentParser::attemptToEnd() + 67 (HTMLDocumentParser.cpp:403)
66  com.apple.WebCore             	0x000000010e0ace98 WebCore::HTMLDocumentParser::finish() + 72 (HTMLDocumentParser.cpp:430)
67  com.apple.WebCore             	0x000000010dd09eb7 WebCore::DocumentWriter::end() + 391 (DocumentWriter.cpp:242)
68  com.apple.WebCore             	0x000000010dce83bf WebCore::DocumentLoader::finishedLoading() + 207 (DocumentLoader.cpp:300)
69  com.apple.WebCore             	0x000000010e98466e WebCore::MainResourceLoader::didFinishLoading(double) + 318 (MainResourceLoader.cpp:545)
70  com.apple.WebCore             	0x000000010ede34b5 WebCore::ResourceLoader::didFinishLoading(WebCore::ResourceHandle*, double) + 53 (ResourceLoader.cpp:436)
71  com.apple.WebCore             	0x000000010ede0035 -[WebCoreResourceHandleAsDelegate connectionDidFinishLoading:] + 197 (ResourceHandleMac.mm:861)
72  com.apple.Foundation          	0x00007fff8acf5662 ___NSURLConnectionDidFinishLoading_block_invoke_1 + 122
73  com.apple.Foundation          	0x00007fff8acf55e2 _NSURLConnectionDidFinishLoading + 81
74  com.apple.CFNetwork           	0x00007fff8859b4fe URLConnectionClient::_clientDidFinishLoading(URLConnectionClient::ClientConnectionEventQueue*) + 296
75  com.apple.CFNetwork           	0x00007fff8864b91e URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo&lt;XClientEvent, XClientEventParams&gt;*, long) + 862
76  com.apple.CFNetwork           	0x00007fff88576389 URLConnectionClient::processEvents() + 185
77  com.apple.CFNetwork           	0x00007fff8857622e MultiplexerSource::perform() + 212
78  com.apple.CoreFoundation      	0x00007fff892a66e1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
79  com.apple.CoreFoundation      	0x00007fff892a5f4d __CFRunLoopDoSources0 + 253
80  com.apple.CoreFoundation      	0x00007fff892ccd39 __CFRunLoopRun + 905
81  com.apple.CoreFoundation      	0x00007fff892cc676 CFRunLoopRunSpecific + 230
82  com.apple.Foundation          	0x00007fff8ac98f9f -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 267
83  DumpRenderTree                	0x000000010c36f349 _ZL7runTestRKNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEE + 5769 (DumpRenderTree.mm:1365)
84  DumpRenderTree                	0x000000010c36dc3a _ZL20runTestingServerLoopv + 282 (DumpRenderTree.mm:828)
85  DumpRenderTree                	0x000000010c36d4a9 dumpRenderTree(int, char const**) + 377 (DumpRenderTree.mm:877)
86  DumpRenderTree                	0x000000010c36fbac main + 124 (DumpRenderTree.mm:915)
87  DumpRenderTree                	0x000000010c358af4 start + 52</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>633983</commentid>
    <comment_count>3</comment_count>
    <who name="Jessie Berlin">jberlin</who>
    <bug_when>2012-05-25 09:24:35 -0700</bug_when>
    <thetext>&lt;rdar://problem/11533338&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>633997</commentid>
    <comment_count>4</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2012-05-25 09:50:17 -0700</bug_when>
    <thetext>Do we know when this started?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>634618</commentid>
    <comment_count>5</comment_count>
    <who name="Li Yin">li.yin</who>
    <bug_when>2012-05-26 01:41:11 -0700</bug_when>
    <thetext>(In reply to comment #4)
&gt; Do we know when this started?

The earliest crash report came from Gtk Debug version on 2012-05-07.
It seems that function ScriptExecutionContext::stopActiveDOMObjects is not called before deleting document.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>636079</commentid>
    <comment_count>6</comment_count>
    <who name="Jessie Berlin">jberlin</who>
    <bug_when>2012-05-29 08:57:38 -0700</bug_when>
    <thetext>This is happening often enough that I am going to add fast/events/message-port-constructor-for-deleted-document.html to the mac Skipped list.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>636085</commentid>
    <comment_count>7</comment_count>
    <who name="Jessie Berlin">jberlin</who>
    <bug_when>2012-05-29 09:03:07 -0700</bug_when>
    <thetext>Updated the Mac Skipped list in http://trac.webkit.org/changeset/118784</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>636201</commentid>
    <comment_count>8</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2012-05-29 10:33:45 -0700</bug_when>
    <thetext>Which test actually causes the badness? I&apos;ve added the one Jessie skipped to the title for now, but perhaps it&apos;s scripts blaming the wrong test?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>636363</commentid>
    <comment_count>9</comment_count>
    <who name="Jessie Berlin">jberlin</who>
    <bug_when>2012-05-29 13:02:57 -0700</bug_when>
    <thetext>Looks like another test is suffering from this:

http://build.webkit.org/results/Lion%20Debug%20(Tests)/r118808%20(7169)/fast/events/message-port-context-destroyed-crash-log.txt</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>636412</commentid>
    <comment_count>10</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2012-05-29 14:00:14 -0700</bug_when>
    <thetext>From local testing, I think that it&apos;s message-port-clone.html causing a crash when its document is finally collected during other tests. Skipped it in &lt;http://trac.webkit.org/changeset/118830&gt;, and unskipped message-port-constructor-for-deleted-document.html.

Li, it makes some sense that cloned ports are not cleaned up correctly - it&apos;s easy to not count them right.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>652102</commentid>
    <comment_count>11</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2012-06-18 23:41:45 -0700</bug_when>
    <thetext>*** Bug 86075 has been marked as a duplicate of this bug. ***</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>683112</commentid>
    <comment_count>12</comment_count>
    <who name="Csaba Osztrogonác">ossy</who>
    <bug_when>2012-07-31 08:32:53 -0700</bug_when>
    <thetext>It asserts on Qt too. First assert was r123684, last success run was r123670.

crash log for DumpRenderTree (pid 17724):
STDOUT: &lt;empty&gt;
STDERR: ASSERTION FAILED: m_closed
STDERR: /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/Source/WebCore/dom/MessagePort.cpp(158) : void WebCore::MessagePort::contextDestroyed()
STDERR: 1   0x7f30795b81e9 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x92d1e9) [0x7f30795b81e9]
STDERR: 2   0x7f30795f57ad /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x96a7ad) [0x7f30795f57ad]
STDERR: 3   0x7f307952ab61 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x89fb61) [0x7f307952ab61]
STDERR: 4   0x7f307974df57 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0xac2f57) [0x7f307974df57]
STDERR: 5   0x7f3079522aea /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x897aea) [0x7f3079522aea]
STDERR: 6   0x7f307952d88f /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x8a288f) [0x7f307952d88f]
STDERR: 7   0x7f30795cbe7c /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x940e7c) [0x7f30795cbe7c]
STDERR: 8   0x7f30790fb908 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x470908) [0x7f30790fb908]
STDERR: 9   0x7f30792a9c8e /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x61ec8e) [0x7f30792a9c8e]
STDERR: 10  0x7f30792aa982 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x61f982) [0x7f30792aa982]
STDERR: 11  0x7f307a73897a /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1aad97a) [0x7f307a73897a]
STDERR: 12  0x7f307a738278 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1aad278) [0x7f307a738278]
STDERR: 13  0x7f307a7376aa /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1aac6aa) [0x7f307a7376aa]
STDERR: 14  0x7f307a751ed1 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1ac6ed1) [0x7f307a751ed1]
STDERR: 15  0x7f307a73e531 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1ab3531) [0x7f307a73e531]
STDERR: 16  0x7f307a742cb3 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1ab7cb3) [0x7f307a742cb3]
STDERR: 17  0x7f307a740f71 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1ab5f71) [0x7f307a740f71]
STDERR: 18  0x7f307a73f3d7 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1ab43d7) [0x7f307a73f3d7]
STDERR: 19  0x7f307a73e642 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1ab3642) [0x7f307a73e642]
STDERR: 20  0x7f307a73d451 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x1ab2451) [0x7f307a73d451]
STDERR: 21  0x7f307a73d1dd /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(JSC::Heap::collectAllGarbage()+0x2f) [0x7f307a73d1dd]
STDERR: 22  0x7f3079238639 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x5ad639) [0x7f3079238639]
STDERR: 23  0x7f307923882e /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x5ad82e) [0x7f307923882e]
STDERR: 24  0x7f30792389c6 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x5ad9c6) [0x7f30792389c6]
STDERR: 25  0x7f3079b8ffc0 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0xf04fc0) [0x7f3079b8ffc0]
STDERR: 26  0x7f3079b8fef7 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0xf04ef7) [0x7f3079b8fef7]
STDERR: 27  0x7f3079e78c94 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.4(+0x11edc94) [0x7f3079e78c94]
STDERR: 28  0x7f3074409519 /usr/local/Trolltech/Qt-4.8.0/lib/libQtCore.so.4(QObject::event(QEvent*)+0xa9) [0x7f3074409519]
STDERR: 29  0x7f3074cc519c /usr/local/Trolltech/Qt-4.8.0/lib/libQtGui.so.4(QApplicationPrivate::notify_helper(QObject*, QEvent*)+0xac) [0x7f3074cc519c]
STDERR: 30  0x7f3074ccc06d /usr/local/Trolltech/Qt-4.8.0/lib/libQtGui.so.4(QApplication::notify(QObject*, QEvent*)+0x13d) [0x7f3074ccc06d]
STDERR: 31  0x7f30743f70ec /usr/local/Trolltech/Qt-4.8.0/lib/libQtCore.so.4(QCoreApplication::notifyInternal(QObject*, QEvent*)+0x8c) [0x7f30743f70ec]</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>683115</commentid>
    <comment_count>13</comment_count>
    <who name="Csaba Osztrogonác">ossy</who>
    <bug_when>2012-07-31 08:37:58 -0700</bug_when>
    <thetext>I added it to the Qt&apos;s TestExpectations file by r124204.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>699634</commentid>
    <comment_count>14</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2012-08-20 10:25:00 -0700</bug_when>
    <thetext>&gt; &gt; I&apos;ll flag it in GTK test_expectations. Please unflag when a fix is provided!
&gt; 
&gt; Thanks for your report, I will follow this issue.

Li, please do take a look.

See also: bug 94458.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>703622</commentid>
    <comment_count>15</comment_count>
    <who name="Li Yin">li.yin</who>
    <bug_when>2012-08-23 18:05:15 -0700</bug_when>
    <thetext>(In reply to comment #14)
&gt; &gt; &gt; I&apos;ll flag it in GTK test_expectations. Please unflag when a fix is provided!
&gt; &gt; 
&gt; &gt; Thanks for your report, I will follow this issue.
&gt; 
&gt; Li, please do take a look.
&gt; 
&gt; See also: bug 94458.

Sorry for delay, assign the bug to me, I will investigate it ASAP.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>704646</commentid>
    <comment_count>16</comment_count>
    <who name="Li Yin">li.yin</who>
    <bug_when>2012-08-24 21:15:02 -0700</bug_when>
    <thetext>Add Andrew Wilson, because he designed the test.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>710132</commentid>
    <comment_count>17</comment_count>
      <attachid>161810</attachid>
    <who name="Li Yin">li.yin</who>
    <bug_when>2012-08-31 19:38:37 -0700</bug_when>
    <thetext>Created attachment 161810
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>710133</commentid>
    <comment_count>18</comment_count>
    <who name="Li Yin">li.yin</who>
    <bug_when>2012-08-31 19:45:34 -0700</bug_when>
    <thetext>I think the root cause is that we must set m_closed status to be true when the close function is invoked, especially, the port is cloned.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>710277</commentid>
    <comment_count>19</comment_count>
      <attachid>161810</attachid>
    <who name="WebKit Review Bot">webkit.review.bot</who>
    <bug_when>2012-09-01 12:42:24 -0700</bug_when>
    <thetext>Comment on attachment 161810
Patch

Clearing flags on attachment: 161810

Committed r127380: &lt;http://trac.webkit.org/changeset/127380&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>710278</commentid>
    <comment_count>20</comment_count>
    <who name="WebKit Review Bot">webkit.review.bot</who>
    <bug_when>2012-09-01 12:42:28 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
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          >
            <attachid>161810</attachid>
            <date>2012-08-31 19:38:37 -0700</date>
            <delta_ts>2012-09-01 12:42:23 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-85811-20120901103920.patch</filename>
            <type>text/plain</type>
            <size>6884</size>
            <attacher name="Li Yin">li.yin</attacher>
            
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          </attachment>
      

    </bug>

</bugzilla>