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    <head>
      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - ASSERTION FAILED: m_originThreadID == currentThread()imported/blink/storage/indexeddb/empty-blob-file.html"
   href="https://bugs.webkit.org/show_bug.cgi?id=157543">157543</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>ASSERTION FAILED: m_originThreadID == currentThread()imported/blink/storage/indexeddb/empty-blob-file.html
          </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>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </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>WebCore Misc.
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>ryanhaddad&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>LayoutTest imported/blink/storage/indexeddb/empty-blob-file.html is frequently hitting this assertion on mac-wk1 debug testers

&lt;<a href="https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK1%20(Tests)/r200641%20(5125)/results.html">https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK1%20(Tests)/r200641%20(5125)/results.html</a>&gt;
&lt;<a href="https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&amp;tests=imported%2Fblink%2Fstorage%2Findexeddb%2Fempty-blob-file.html">https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&amp;tests=imported%2Fblink%2Fstorage%2Findexeddb%2Fempty-blob-file.html</a>&gt;

No crash log found for DumpRenderTree:25168.

stdout:

stderr:
ASSERTION FAILED: m_originThreadID == currentThread()
/Volumes/Data/slave/elcapitan-debug/build/Source/WebCore/Modules/indexeddb/client/TransactionOperation.h(52) : virtual WebCore::IDBClient::TransactionOperation::~TransactionOperation()
1   0x10fa698a0 WTFCrash
2   0x11581d148 WebCore::IDBClient::TransactionOperation::~TransactionOperation()
3   0x115843d85 WebCore::IDBClient::TransactionOperationImpl&lt;WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;&gt;::~TransactionOperationImpl()
4   0x115840415 WebCore::IDBClient::TransactionOperationImpl&lt;WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;&gt;::~TransactionOperationImpl()
5   0x115840439 WebCore::IDBClient::TransactionOperationImpl&lt;WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;&gt;::~TransactionOperationImpl()
6   0x115776df3 WTF::ThreadSafeRefCounted&lt;WebCore::IDBClient::TransactionOperation&gt;::deref()
7   0x115776d5a void WTF::derefIfNotNull&lt;WebCore::IDBClient::TransactionOperation&gt;(WebCore::IDBClient::TransactionOperation*)
8   0x115776d19 WTF::RefPtr&lt;WebCore::IDBClient::TransactionOperation&gt;::~RefPtr()
9   0x1157742a5 WTF::RefPtr&lt;WebCore::IDBClient::TransactionOperation&gt;::~RefPtr()
10  0x1158147c9 WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1::~$_1()
11  0x115813e55 WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1::~$_1()
12  0x115817ce5 std::__1::__libcpp_compressed_pair_imp&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1, std::__1::allocator&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1&gt;, 2u&gt;::~__libcpp_compressed_pair_imp()
13  0x115817cc5 std::__1::__compressed_pair&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1, std::__1::allocator&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1&gt; &gt;::~__compressed_pair()
14  0x115817ca5 std::__1::__compressed_pair&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1, std::__1::allocator&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1&gt; &gt;::~__compressed_pair()
15  0x115817abb std::__1::__function::__func&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1, std::__1::allocator&lt;WebCore::IDBTransaction::putOrAddOnServer(WebCore::IDBClient::TransactionOperation&amp;, WTF::RefPtr&lt;WebCore::IDBKey&gt;, WTF::RefPtr&lt;WebCore::SerializedScriptValue&gt;, WebCore::IndexedDB::ObjectStoreOverwriteMode const&amp;)::$_1&gt;, void (WebCore::IDBValue const&amp;)&gt;::destroy_deallocate()
16  0x115843fcd std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;::~function()
17  0x11581b9c5 std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;::~function()
18  0x116a8cb6e WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0::~$_0()
19  0x116a8c655 WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0::~$_0()
20  0x116a8e585 std::__1::__libcpp_compressed_pair_imp&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0&gt;, 2u&gt;::~__libcpp_compressed_pair_imp()
21  0x116a8e565 std::__1::__compressed_pair&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0&gt; &gt;::~__compressed_pair()
22  0x116a8e545 std::__1::__compressed_pair&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0&gt; &gt;::~__compressed_pair()
23  0x116a8e3ab std::__1::__function::__func&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::SerializedScriptValue::writeBlobsToDiskForIndexedDB(std::__1::function&lt;void (WebCore::IDBValue const&amp;)&gt;)::$_0&gt;, void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;::destroy_deallocate()
24  0x114be2a2d std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;::~function()
25  0x114be29c5 std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;::~function()
26  0x114bd8ab5 WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0::~$_0()
27  0x114bd89d5 WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0::~$_0()
28  0x114bda4a5 std::__1::__libcpp_compressed_pair_imp&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0&gt;, 2u&gt;::~__libcpp_compressed_pair_imp()
29  0x114bda485 std::__1::__compressed_pair&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0&gt; &gt;::~__compressed_pair()
30  0x114bda465 std::__1::__compressed_pair&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0&gt; &gt;::~__compressed_pair()
31  0x114bda2fb std::__1::__function::__func&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0, std::__1::allocator&lt;WebCore::BlobRegistryImpl::writeBlobsToTemporaryFiles(WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;, std::__1::function&lt;void (WTF::Vector&lt;WTF::String, 0ul, WTF::CrashOnOverflow, 16ul&gt; const&amp;)&gt;)::$_0&gt;, void ()&gt;::destroy_deallocate()</pre>
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