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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 - Crash in JSC::StructureIDTable::get"
href="https://bugs.webkit.org/show_bug.cgi?id=165045">165045</a>
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</tr>
<tr>
<th>Summary</th>
<td>Crash in JSC::StructureIDTable::get
</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>Linux
</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>mcatanzaro@igalia.com
</td>
</tr></table>
<p>
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<pre>Two reports (very few) of this crash with WebKitGTK+ 2.14.1:
Truncated backtrace:
Thread no. 0 (10 frames)
#0 JSC::StructureIDTable::get(unsigned int) at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/runtime/StructureIDTable.h:86
#1 JSC::JSCell::structure(JSC::VM&) const at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/runtime/JSCellInlines.h:107
#2 JSC::JSCell::classInfo() const at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/runtime/JSCellInlines.h:245
#3 JSC::isJSFinalObject(JSC::JSCell*) at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/runtime/JSObject.h:1097
#4 JSC::isJSFinalObject(JSC::JSValue) at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/runtime/JSObject.h:1102
#5 JSC::SlotVisitor::visitChildren(JSC::JSCell const*) at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/heap/SlotVisitor.cpp:308
#6 JSC::SlotVisitor::drain() at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/heap/SlotVisitor.cpp:354
#7 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/heap/SlotVisitor.cpp:423
#8 JSC::Heap::<lambda()>::operator() at /usr/src/debug/webkitgtk-2.14.1/Source/JavaScriptCore/heap/Heap.cpp:451
#9 WTF::SharedTaskFunctor<void(), JSC::Heap::markRoots(double, void*, void*, __jmp_buf_tag (&)[1])::<lambda()> >::run(void) at /usr/src/debug/webkitgtk-2.14.1/Source/WTF/wtf/SharedTask.h:90
In the downstream bug (See Also) attached to <a href="show_bug.cgi?id=165045#c1">comment #1</a> there is a full backtrace with stack variables, register dump, and assembler dump at the crash site.</pre>
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