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      <base href="https://bugs.webkit.org/" />
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Should never be reached assertion hit in WebCore::DocumentOrderedMap::get"
   href="https://bugs.webkit.org/show_bug.cgi?id=137959#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Should never be reached assertion hit in WebCore::DocumentOrderedMap::get"
   href="https://bugs.webkit.org/show_bug.cgi?id=137959">bug 137959</a>
              from <span class="vcard"><a class="email" href="mailto:cdumez&#64;apple.com" title="Chris Dumez &lt;cdumez&#64;apple.com&gt;"> <span class="fn">Chris Dumez</span></a>
</span></b>
        <pre>Still crashes on WebKit ToT:
Crashed Thread:        0  Dispatch queue: com.apple.main-thread

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

VM Regions Near 0xbbadbeef:
--&gt; 
    __TEXT                 0000000102a79000-0000000102a7b000 [    8K] r-x/rwx SM=COW  /Users/USER/*/Safari-Gala-Debug-SafariTen-199294-82021.app/Contents/Frameworks/WebKit.framework/Versions/A/XPCServices/com.apple.WebKit.WebContent.Development.xpc/Contents/MacOS/com.apple.WebKit.WebContent.Development

Application Specific Information:
Bundle controller class:
BrowserBundleController

Process Model:
Multiple Web Processes


Global Trace Buffer (reverse chronological seconds):
2.641555     CFNetwork                     0x00007fff9146eed7 Explicitly setting CF cookie storage singleton
2.641944     CFNetwork                     0x00007fff914a58ad Explicitly setting cookie storage singleton

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore          0x0000000107085847 WTFCrash + 39
1   com.apple.WebCore                 0x0000000109aaf221 WebCore::Element* WebCore::DocumentOrderedMap::get&lt;WebCore::DocumentOrderedMap::getElementById(WTF::AtomicStringImpl const&amp;, WebCore::TreeScope const&amp;) const::$_0&gt;(WTF::AtomicStringImpl const&amp;, WebCore::TreeScope const&amp;, WebCore::DocumentOrderedMap::getElementById(WTF::AtomicStringImpl const&amp;, WebCore::TreeScope const&amp;) const::$_0 const&amp;) const + 1089
2   com.apple.WebCore                 0x0000000109aaedd9 WebCore::DocumentOrderedMap::getElementById(WTF::AtomicStringImpl const&amp;, WebCore::TreeScope const&amp;) const + 41
3   com.apple.WebCore                 0x000000010b7979fc WebCore::TreeScope::getElementById(WTF::AtomicString const&amp;) const + 188
4   com.apple.WebCore                 0x0000000109d2cdb4 WebCore::FormAssociatedElement::findAssociatedForm(WebCore::HTMLElement const*, WebCore::HTMLFormElement*) + 116
5   com.apple.WebCore                 0x0000000109d2cfa8 WebCore::FormAssociatedElement::resetFormOwner() + 56
6   com.apple.WebCore                 0x0000000109d2d575 WebCore::FormAssociatedElement::formAttributeTargetChanged() + 21
7   com.apple.WebCore                 0x0000000109d2d6d9 WebCore::FormAttributeTargetObserver::idTargetChanged() + 25
8   com.apple.WebCore                 0x000000010a1887b7 WebCore::IdTargetObserverRegistry::notifyObserversInternal(WTF::AtomicStringImpl const&amp;) + 263
9   com.apple.WebCore                 0x0000000109be5bc0 WebCore::IdTargetObserverRegistry::notifyObservers(WTF::AtomicStringImpl const&amp;) + 192
10  com.apple.WebCore                 0x000000010b798084 WebCore::TreeScope::removeElementById(WTF::AtomicStringImpl const&amp;, WebCore::Element&amp;, bool) + 196
11  com.apple.WebCore                 0x0000000109bdc4f2 WebCore::Element::updateIdForTreeScope(WebCore::TreeScope&amp;, WTF::AtomicString const&amp;, WTF::AtomicString const&amp;, WebCore::Element::NotifyObservers) + 242
12  com.apple.WebCore                 0x0000000109bdce0b WebCore::Element::removedFrom(WebCore::ContainerNode&amp;) + 411
13  com.apple.WebCore                 0x00000001096ddbd4 WebCore::notifyNodeRemovedFromDocument(WebCore::ContainerNode&amp;, WebCore::Node&amp;) + 100
14  com.apple.WebCore                 0x00000001096ddc6e WebCore::notifyNodeRemovedFromDocument(WebCore::ContainerNode&amp;, WebCore::Node&amp;) + 254
15  com.apple.WebCore                 0x00000001096ddc6e WebCore::notifyNodeRemovedFromDocument(WebCore::ContainerNode&amp;, WebCore::Node&amp;) + 254
16  com.apple.WebCore                 0x00000001096ddf79 WebCore::notifyChildNodeRemoved(WebCore::ContainerNode&amp;, WebCore::Node&amp;) + 105
17  com.apple.WebCore                 0x00000001096d0ee0 WebCore::ContainerNode::notifyChildRemoved(WebCore::Node&amp;, WebCore::Node*, WebCore::Node*, WebCore::ContainerNode::ChildChangeSource) + 48
18  com.apple.WebCore                 0x00000001096d2107 WebCore::ContainerNode::parserRemoveChild(WebCore::Node&amp;) + 279
19  com.apple.WebCore                 0x0000000109f45774 WebCore::insert(WebCore::HTMLConstructionSiteTask&amp;) + 196
20  com.apple.WebCore                 0x0000000109f4552e WebCore::executeInsertAlreadyParsedChildTask(WebCore::HTMLConstructionSiteTask&amp;) + 78
21  com.apple.WebCore                 0x0000000109f41b70 WebCore::executeTask(WebCore::HTMLConstructionSiteTask&amp;) + 80
22  com.apple.WebCore                 0x0000000109f41af5 WebCore::HTMLConstructionSite::executeQueuedTasks() + 133
23  com.apple.WebCore                 0x000000010a09735e WebCore::HTMLTreeBuilder::constructTree(WebCore::AtomicHTMLToken&amp;) + 478
24  com.apple.WebCore                 0x0000000109f71b43 WebCore::HTMLDocumentParser::constructTreeFromHTMLToken(WebCore::HTMLTokenizer::TokenPtr&amp;) + 131
25  com.apple.WebCore                 0x0000000109f71a4f WebCore::HTMLDocumentParser::pumpTokenizerLoop(WebCore::HTMLDocumentParser::SynchronousMode, bool, WebCore::PumpSession&amp;) + 1343
26  com.apple.WebCore                 0x0000000109f7075d WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 445
27  com.apple.WebCore                 0x0000000109f7035e WebCore::HTMLDocumentParser::pumpTokenizerIfPossible(WebCore::HTMLDocumentParser::SynchronousMode) + 174
28  com.apple.WebCore                 0x0000000109f72403 WebCore::HTMLDocumentParser::append(WTF::RefPtr&lt;WTF::StringImpl&gt;&amp;&amp;) + 883
29  com.apple.WebCore                 0x0000000109988b8f WebCore::DecodedDataDocumentParser::flush(WebCore::DocumentWriter&amp;) + 143
30  com.apple.WebCore                 0x0000000109ac6884 WebCore::DocumentWriter::end() + 260
31  com.apple.WebCore                 0x0000000109a80a9e WebCore::DocumentLoader::finishedLoading(double) + 398
32  com.apple.WebCore                 0x0000000109a80885 WebCore::DocumentLoader::notifyFinished(WebCore::CachedResource*) + 389
33  com.apple.WebCore                 0x00000001095c15c2 WebCore::CachedResource::checkNotify() + 130
34  com.apple.WebCore                 0x00000001095c16d1 WebCore::CachedResource::finishLoading(WebCore::SharedBuffer*) + 49
35  com.apple.WebCore                 0x00000001095bce7a WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) + 218
36  com.apple.WebCore                 0x000000010b576934 WebCore::SubresourceLoader::didFinishLoading(double) + 532
37  com.apple.WebKit                  0x00000001033e9aa7 WebKit::WebResourceLoader::didFinishResourceLoad(double) + 151
38  com.apple.WebKit                  0x00000001033ef0f3 void IPC::callMemberFunctionImpl&lt;WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(double), std::__1::tuple&lt;double&gt;, 0ul&gt;(WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(double), std::__1::tuple&lt;double&gt;&amp;&amp;, std::index_sequence&lt;0ul&gt;) + 163
39  com.apple.WebKit                  0x00000001033ef048 void IPC::callMemberFunction&lt;WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(double), std::__1::tuple&lt;double&gt;, std::make_index_sequence&lt;1ul&gt; &gt;(std::__1::tuple&lt;double&gt;&amp;&amp;, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(double)) + 88
40  com.apple.WebKit                  0x00000001033ee162 void IPC::handleMessage&lt;Messages::WebResourceLoader::DidFinishResourceLoad, WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(double)&gt;(IPC::MessageDecoder&amp;, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(double)) + 226
41  com.apple.WebKit                  0x00000001033ed8dc WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&amp;, IPC::MessageDecoder&amp;) + 636
42  com.apple.WebKit                  0x0000000102dbc6c0 WebKit::NetworkProcessConnection::didReceiveMessage(IPC::Connection&amp;, IPC::MessageDecoder&amp;) + 160
43  com.apple.WebKit                  0x0000000102b4a5a3 IPC::Connection::dispatchMessage(IPC::MessageDecoder&amp;) + 51
44  com.apple.WebKit                  0x0000000102b413d1 IPC::Connection::dispatchMessage(std::__1::unique_ptr&lt;IPC::MessageDecoder, std::__1::default_delete&lt;IPC::MessageDecoder&gt; &gt;) + 785
45  com.apple.WebKit                  0x0000000102b4ab9f IPC::Connection::dispatchOneMessage() + 1519
46  com.apple.WebKit                  0x0000000102b5bf0d IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr&lt;IPC::MessageDecoder, std::__1::default_delete&lt;IPC::MessageDecoder&gt; &gt;)::$_10::operator()() const + 29
47  com.apple.WebKit</pre>
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