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<base href="https://bugs.webkit.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Win] Access violation in Release build 64-bit JSC"
href="https://bugs.webkit.org/show_bug.cgi?id=150342">150342</a>
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<tr>
<th>Summary</th>
<td>[Win] Access violation in Release build 64-bit JSC
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Nightly Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows 10
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>JavaScriptCore
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>bfulgham@webkit.org
</td>
</tr></table>
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<pre>Running with a Release 64-bit JavaScriptCore build is frequently hitting the following crash when running the 'fast' WebKit test suite:
<span class="quote">> JavaScriptCore.dll!JSC::MarkedAllocator::reset() Line 215 C++</span >
JavaScriptCore.dll!JSC::MarkedSpace::resetAllocators() Line 109 C++
JavaScriptCore.dll!JSC::Heap::collectImpl(JSC::HeapOperation collectionType, void * stackOrigin, void * stackTop, _SETJMP_FLOAT128[16] & calleeSavedRegisters) Line 1099 C++
JavaScriptCore.dll!JSC::Heap::collect(JSC::HeapOperation collectionType) Line 1026 C++
JavaScriptCore.dll!JSC::MarkedAllocator::allocateSlowCase(unsigned __int64 bytes) Line 159 C++
WebKit.dll!WebCore::JSDOMWindowShell::setWindow(WTF::PassRefPtr<WebCore::DOMWindow> domWindow) Line 86 C++
WebKit.dll!WebCore::JSDOMWindowShell::create(JSC::VM & vm, WTF::PassRefPtr<WebCore::DOMWindow> window, JSC::Structure * structure, WebCore::DOMWrapperWorld & world) Line 57 C++
WebKit.dll!WebCore::ScriptController::createWindowShell(WebCore::DOMWrapperWorld & world) Line 133 C++
WebKit.dll!WebCore::ScriptController::initScript(WebCore::DOMWrapperWorld & world) Line 252 C++
WebKit.dll!WebCore::ScriptController::windowShell(WebCore::DOMWrapperWorld & world) Line 91 C++
WebKit.dll!WebFrame::globalContext() Line 532 C++
DumpRenderTreeLib.dll!resetWebViewToConsistentStateBeforeTesting() Line 917 C++
DumpRenderTreeLib.dll!runTest(const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & inputLine) Line 1175 C++
DumpRenderTreeLib.dll!main(int argc, const char * * argv) Line 1494 C++
DumpRenderTree.exe!main(int argc, const char * * argv) Line 269 C++
[External Code]</pre>
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</p>
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