RESOLVED FIXED Bug 34281
fast/workers/shared-worker-frame-lifecycle.html failed on Qt Bot 
https://bugs.webkit.org/show_bug.cgi?id=34281
Summary fast/workers/shared-worker-frame-lifecycle.html failed on Qt Bot
Eric Seidel (no email)
Reported 2010-01-28 12:50:18 PST
fast/workers/shared-worker-frame-lifecycle.html failed on Qt Bot Judging by the failure diff, i suspect the test just has a race: http://build.webkit.org/results/Qt%20Linux%20Release/r53992%20(6638)/fast/workers/shared-worker-frame-lifecycle-diffs.txt --- /home/webkit/buildslave/qt-linux-release/build/layout-test-results/fast/workers/shared-worker-frame-lifecycle-expected.txt 2010-01-28 01:25:03.000000000 -0800 +++ /home/webkit/buildslave/qt-linux-release/build/layout-test-results/fast/workers/shared-worker-frame-lifecycle-actual.txt 2010-01-28 01:25:03.000000000 -0800 @@ -1,12 +1,3 @@ -This test checks whether shared workers exit when the parent document closes - -On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". - - -PASS Frame1 closed, shared workers kept running -PASS Frame2 closed, shared worker2 exited -PASS Frame3 closed, shared worker3 exited -PASS Frame4 closed, all workers closed - -TEST COMPLETE +CONSOLE MESSAGE: line 19: TypeError: Result of expression 'document.getElementById("console")' [null] is not an object. +FAIL: Timed out waiting for notifyDone to be called Has been around 5 months: http://trac.webkit.org/browser/trunk/LayoutTests/fast/workers/shared-worker-frame-lifecycle.html
Attachments
patch (1.17 KB, patch)
2011-05-24 06:20 PDT, qi 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Andrew Wilson
Comment 1 2010-01-28 14:15:21 PST
I'm hard-pressed to understand how this happens - here's the body of the test: <head> <link rel="stylesheet" href="../js/resources/js-test-style.css"> <script src="../js/resources/js-test-pre.js"></script> </head> <body> <p id="description"></p> <div id="console"></div> <script src="resources/shared-worker-create-common.js"></script> <script src="resources/worker-util.js"></script> <script src="resources/shared-worker-lifecycle.js"></script> </body> The error is generated by line 19 of js-test-pre.js (the "debug()" method). Note that the "console" div is defined before any of the test code executes, so there's no way for debug() to get invoked before console is defined. If this keeps happening, we could move the loading of the js-test-pre.js script until after the console div is defined, but it shouldn't matter.
Eric Seidel (no email)
Comment 2 2010-01-28 18:08:30 PST
I believe scripts execute as soon as they're loaded. So it's possible for js-test-pre.js to execute before <div id="console"> is hit. But looking at it, I don't see it using debug() anywhere in the global scope which could cause this error.
Andrew Wilson
Comment 3 2010-01-28 18:19:41 PST
Exactly. debug() has to get called, and I can't see how it would get called without actually running a test.
Csaba Osztrogonác
Comment 4 2010-02-04 02:52:26 PST
$WebKitTools/Scripts/run-webkit-tests fast/workers/shared-worker-frame-lifecycle.html --iterations 10000 --> always passed $WebKitTools/Scripts/run-webkit-tests fast/workers --iterations 100 --> failed 7 times, passed 93 times This strange bug might caused by another test, it can be a DRT sideeffect, but I can't reproduce it consistently yet. So I skipped it to make buildbot happy. ( http://trac.webkit.org/changeset/54338 )
Csaba Osztrogonác
Comment 5 2011-03-16 04:10:09 PDT
I skipped it again, because it still fails: http://trac.webkit.org/changeset/81226 100 runs, 14 fails
Csaba Osztrogonác
Comment 6 2011-03-16 04:18:06 PDT
(In reply to comment #5) > I skipped it again, because it still fails: http://trac.webkit.org/changeset/81226 > > 100 runs, 14 fails pretty diff: http://build.webkit.org/results/Qt%20Linux%20Release/r81232%20%2829888%29/fast/workers/shared-worker-frame-lifecycle-pretty-diff.html
qi
Comment 7 2011-05-24 05:58:27 PDT
It works for me on the r87070. I used "Tools/Scripts/run-webkit-tests fast/workers --iterations 100". Can we just unskip it?
Csaba Osztrogonác
Comment 8 2011-05-24 06:00:57 PDT
(In reply to comment #7) > It works for me on the r87070. I used "Tools/Scripts/run-webkit-tests fast/workers --iterations 100". > > Can we just unskip it? Thanks for checking it. rs=me for unskipping it. We can skip it again if fail occurs again. :)
qi
Comment 9 2011-05-24 06:20:42 PDT
Created attachment 94600 [details] patch Remove the test case from skip list.
Andreas Kling
Comment 10 2011-05-24 06:22:26 PDT
Comment on attachment 94600 [details] patch rs=me
WebKit Commit Bot
Comment 11 2011-05-24 08:43:16 PDT
The commit-queue encountered the following flaky tests while processing attachment 94600 [details]: animations/dynamic-stylesheet-loading.html bug 52669 (authors: cmarrin@apple.com and simon.fraser@apple.com) http/tests/websocket/tests/url-no-trailing-slash.html bug 60906 (author: abarth@webkit.org) The commit-queue is continuing to process your patch.
WebKit Commit Bot
Comment 12 2011-05-24 08:45:02 PDT
Comment on attachment 94600 [details] patch Clearing flags on attachment: 94600 Committed r87155: <http://trac.webkit.org/changeset/87155>
WebKit Commit Bot
Comment 13 2011-05-24 08:45:09 PDT
All reviewed patches have been landed. Closing bug.
WebKit Commit Bot
Comment 14 2011-05-24 10:22:57 PDT
The commit-queue encountered the following flaky tests while processing attachment 94600 [details]: java/lc3/JavaObject/JavaObjectToByte-006.html bug 60333 (author: ap@webkit.org) The commit-queue is continuing to process your patch.
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