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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Calling then on promise in Workers may crash in Debug builds"
href="https://bugs.webkit.org/show_bug.cgi?id=156737#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Calling then on promise in Workers may crash in Debug builds"
href="https://bugs.webkit.org/show_bug.cgi?id=156737">bug 156737</a>
from <span class="vcard"><a class="email" href="mailto:youennf@gmail.com" title="youenn fablet <youennf@gmail.com>"> <span class="fn">youenn fablet</span></a>
</span></b>
<pre>
The following test sample crashes sometimes (not very often) on Mac and GTK when run through rwt with the following options "--debug -f --iterations=1000"
<!DOCTYPE html>
<meta charset="utf-8">
<div id="title">Testing promise chaining in workers. This test passes if not crashing.</div>
<div id="log"></div>
<script>
var worker = new Worker(window.URL.createObjectURL(new Blob(
["Promise.resolve().then();\n",
"postMessage('done');"],
{ "type" : "text\/javascript" })));
worker.onmessage = function() {
document.getElementById("log").innerHTML = "PASS"
if (window.testRunner)
testRunner.notifyDone();
};
if (window.testRunner) {
testRunner.dumpAsText();
testRunner.waitUntilDone();
}
</script>
The log is similar to the one in <a class="bz_bug_link
bz_status_NEW "
title="NEW - imported/w3c/web-platform-tests/streams-api/readable-streams/garbage-collection-1.html is a flaky crash on Mac debug"
href="show_bug.cgi?id=153781">bug 153781</a>:
For GTK:
STDERR: ASSERTION FAILED: !exec->hadException()
STDERR: ../../Source/WebCore/bindings/js/JSDOMGlobalObjectTask.cpp(67) : void WebCore::JSGlobalObjectCallback::call()
STDERR: 1 0x7f2202ca87ad /localHome/youenn/WebKit/WebKitBuild/Debug/lib/libjavascriptcoregtk-4.0.so.18(WTFCrash+0x1e) [0x7f2202ca87ad]
STDERR: 2 0x7f22094c8e4d /localHome/youenn/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::JSGlobalObjectCallback::call()+0x143) [0x7f22094c8e4d]
STDERR: 3 0x7f22094c8680 /localHome/youenn/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x5680680) [0x7f22094c8680]
STDERR: 4 0x7f22094c89b4 /localHome/youenn/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x56809b4) [0x7f22094c89b4]
STDERR: 5 0x7f22093e5c27 /localHome/youenn/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(std::function<void (WebCore::ScriptExecutionContext&)>::operator()(WebCore::ScriptExecutionContext&) const+0x49) [0x7f22093e5c27]
STDERR: 6 0x7f22093e5b6f /localHome/youenn/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::ScriptExecutionContext::Task::performTask(WebCore::ScriptExecutionContext&)+0x23) [0x7f22093e5b6f]
STDERR: 7 0x7f220a61b3fb /localHome/youenn/WebKit/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::WorkerRunLoop::Task::performTask(WebCore::WorkerRunLoop const&, WebCore::WorkerGlobalScope*)+0x6d) [0x7f220a61b3fb]
For MAC:
ASSERTION FAILED: !exec->hadException()
/Users/youenn/Documents/WebKit/Source/WebCore/bindings/js/JSDOMGlobalObjectTask.cpp(91) : void WebCore::JSGlobalObjectCallback::call()
1 0x11209c821 WTFCrash
2 0x1189d27ac WebCore::JSGlobalObjectCallback::call()
3 0x1189cef71 WebCore::JSGlobalObjectTask::JSGlobalObjectTask(WebCore::JSDOMGlobalObject*, WTF::PassRefPtr<JSC::Microtask>)::$_0::operator()(WebCore::ScriptExecutionContext&) const
4 0x1189cef3d _ZNSt3__128__invoke_void_return_wrapperIvE6__callIJRZN7WebCore18JSGlobalObjectTaskC1EPNS3_17JSDOMGlobalObjectEN3WTF10PassRefPtrIN3JSC9MicrotaskEEEE3$_0RNS3_22ScriptExecutionContextEEEEvDpOT_
5 0x1189ceda9 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&)
6 0x116f98b08 std::__1::function<void (WebCore::ScriptExecutionContext&)>::operator()(WebCore::ScriptExecutionContext&) const</pre>
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