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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Possible fix for JSC api test failures in debug mode after r187020."
href="https://bugs.webkit.org/show_bug.cgi?id=147110">147110</a>
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<th>Summary</th>
<td>Possible fix for JSC api test failures in debug mode after r187020.
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
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<th>Version</th>
<td>528+ (Nightly build)
</td>
</tr>
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Unspecified
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>Normal
</td>
</tr>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>Web Template Framework
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>peavo@outlook.com
</td>
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<pre>After r187020, a debug assertion is failing during JSC api tests:
ASSERTION FAILED: !identifierByPthreadHandle(pthreadHandle)
/Volumes/Data/slave/mavericks-cloop-debug/build/Source/WTF/wtf/ThreadingPthreads.cpp(154) : ThreadIdentifier WTF::establishIdentifierForPthreadHandle(const pthread_t &)
1 0x1078e1510 WTFCrash
2 0x10793cac7 WTF::establishIdentifierForPthreadHandle(_opaque_pthread_t* const&)
3 0x10793c730 WTF::createThreadInternal(void (*)(void*), void*, char const*)
4 0x10793af57 WTF::createThread(char const*, std::__1::function<void ()>)
5 0x10793b0b5 WTF::createThread(void (*)(void*), void*, char const*)
6 0x107446317 JSC::GCThreadSharedData::GCThreadSharedData(JSC::VM*)
7 0x107445c7d JSC::GCThreadSharedData::GCThreadSharedData(JSC::VM*)
8 0x107451a44 JSC::Heap::Heap(JSC::VM*, JSC::HeapType)
9 0x1074517b3 JSC::Heap::Heap(JSC::VM*, JSC::HeapType)
10 0x10788b80f JSC::VM::VM(JSC::VM::VMType, JSC::HeapType)
11 0x10788b731 JSC::VM::VM(JSC::VM::VMType, JSC::HeapType)
12 0x10788ea0c JSC::VM::createContextGroup(JSC::HeapType)
13 0x107554ceb JSContextGroupCreate
14 0x107647885 -[JSVirtualMachine init]
15 0x10755356d -[JSContext init]
16 0x1072739dd currentThisInsideBlockGetterTest()
17 0x107294888 testObjectiveCAPIMain()
18 0x1072859e4 testObjectiveCAPI
19 0x10727bec3 main
20 0x7fff9439c5fd start</pre>
</div>
</p>
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