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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - imported/w3c/web-platform-tests/streams-api/readable-streams/garbage-collection.html asserts frequently"
href="https://bugs.webkit.org/show_bug.cgi?id=152436">152436</a>
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<th>Summary</th>
<td>imported/w3c/web-platform-tests/streams-api/readable-streams/garbage-collection.html asserts frequently
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
</tr>
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<th>Version</th>
<td>Other
</td>
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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>
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<th>Keywords</th>
<td>InRadar
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>WebKit Misc.
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>ap@webkit.org
</td>
</tr>
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<th>CC</th>
<td>calvaris@igalia.com, youennf@gmail.com
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<pre>imported/w3c/web-platform-tests/streams-api/readable-streams/garbage-collection.html frequently crashes on debug WebKit1 bots: <a href="https://build.webkit.org/results/Apple%20Yosemite%20Debug%20WK1%20(Tests)/r194278%20(9621)/imported/w3c/web-platform-tests/streams-api/readable-streams/garbage-collection-crash-log.txt">https://build.webkit.org/results/Apple%20Yosemite%20Debug%20WK1%20(Tests)/r194278%20(9621)/imported/w3c/web-platform-tests/streams-api/readable-streams/garbage-collection-crash-log.txt</a>
<rdar://23926702>
Thread 35 Crashed:: WebCore: Worker
0 com.apple.JavaScriptCore 0x000000010f6008f7 WTFCrash + 39
1 com.apple.WebCore 0x0000000114f7a68f WebCore::JSGlobalObjectCallback::call() + 351 (JSDOMGlobalObjectTask.cpp:67)
2 com.apple.WebCore 0x0000000114f79f91 WebCore::JSGlobalObjectTask::JSGlobalObjectTask(WebCore::JSDOMGlobalObject*, WTF::PassRefPtr<JSC::Microtask>)::$_0::operator()(WebCore::ScriptExecutionContext&) const + 33 (JSDOMGlobalObjectTask.cpp:88)
3 com.apple.WebCore 0x0000000114f79f5c std::__1::__function::__func<WebCore::JSGlobalObjectTask::JSGlobalObjectTask(WebCore::JSDOMGlobalObject*, WTF::PassRefPtr<JSC::Microtask>)::$_0, std::__1::allocator<WebCore::JSGlobalObjectTask::JSGlobalObjectTask(WebCore::JSDOMGlobalObject*, WTF::PassRefPtr<JSC::Microtask>)::$_0>, void (WebCore::ScriptExecutionContext&)>::operator()(WebCore::ScriptExecutionContext&) + 92 (functional:1370)
4 com.apple.WebCore 0x0000000114570f8b std::__1::function<void (WebCore::ScriptExecutionContext&)>::operator()(WebCore::ScriptExecutionContext&) const + 59 (functional:1756)
5 com.apple.WebCore 0x000000011453681d WebCore::ScriptExecutionContext::Task::performTask(WebCore::ScriptExecutionContext&) + 29 (ScriptExecutionContext.h:151)
6 com.apple.WebCore 0x00000001163e8569 WebCore::WorkerRunLoop::Task::performTask(WebCore::WorkerRunLoop const&, WebCore::WorkerGlobalScope*) + 105 (WorkerRunLoop.cpp:224)
7 com.apple.WebCore 0x00000001163e8015 WebCore::WorkerRunLoop::runInMode(WebCore::WorkerGlobalScope*, WebCore::ModePredicate const&, WebCore::WorkerRunLoop::WaitMode) + 1029 (WorkerRunLoop.cpp:171)
8 com.apple.WebCore 0x00000001163e7bd6 WebCore::WorkerRunLoop::run(WebCore::WorkerGlobalScope*) + 86 (WorkerRunLoop.cpp:127)
9 com.apple.WebCore 0x00000001163efec5 WebCore::WorkerThread::runEventLoop() + 53 (WorkerThread.cpp:176)
10 com.apple.WebCore 0x00000001144c4259 WebCore::DedicatedWorkerThread::runEventLoop() + 89 (DedicatedWorkerThread.cpp:66)
This started on December 14th, but it's not frequent enough to pinpoint the exact culprit. It seems to happen a lot more on EWS, significantly affecting its performance.
Could you please take a look soon?</pre>
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