Bug 91047 – Regression (r122359) Layout Test html5lib/runner.html is failing

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Hayato Ito]

The following layout test is failing (CRASH) on WebKit Win (dbg), Linux (dbg) and Mac (dbg) on canary.

html5lib/runner.html

Dashboard:
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#showExpectations=true&tests=html5lib%2Frunner.html

Build Log:
http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Linux%20(dbg)/builds/8961

Stack Trace:
crash log for DumpRenderTree (pid 3913):
STDOUT: <empty>
STDERR: ASSERTION FAILED: m_viewportArguments.type == ViewportArguments::Implicit
STDERR: third_party/WebKit/Source/WebCore/dom/Document.cpp(807) : void WebCore::Document::setDocType(WTF::PassRefPtr<WebCore::DocumentType>)
STDERR: 1   0x7fa657c1be8b
STDERR: 2   0x7fa657c6d604
STDERR: 3   0x7fa657c0389b
STDERR: 4   0x7fa657c03a96
STDERR: 5   0x7fa657c0101a
STDERR: 6   0x7fa657fb6092
STDERR: 7   0x7fa657fb637d
STDERR: 8   0x7fa657fb6d53
STDERR: 9   0x7fa657fda300
STDERR: 10  0x7fa657fda1df
STDERR: 11  0x7fa657fda03e
STDERR: 12  0x7fa657fd9f65
STDERR: 13  0x7fa657fbbb9c
STDERR: 14  0x7fa657fbb5e4
STDERR: 15  0x7fa657fbbf4c
STDERR: 16  0x7fa657c2320e
STDERR: 17  0x7fa657c23271
STDERR: 18  0x7fa65847435e
STDERR: 19  0x23614543a1f3
STDERR: [3913:3913:9529023387827:ERROR:process_util_posix.cc(143)] Received signal 11
STDERR: 	base::debug::StackTrace::StackTrace() [0x7fa653f68332]
STDERR: 	base::(anonymous namespace)::StackDumpSignalHandler() [0x7fa653fca471]
STDERR: 	0x7fa64dc15af0
STDERR: 	WebCore::Document::setDocType() [0x7fa657c1be95]
STDERR: 	WebCore::DocumentType::insertedInto() [0x7fa657c6d604]
STDERR: 	WebCore::ChildNodeInsertionNotifier::notifyNodeInsertedIntoDocument() [0x7fa657c0389b]
STDERR: 	WebCore::ChildNodeInsertionNotifier::notify() [0x7fa657c03a96]
STDERR: 	WebCore::ContainerNode::parserAddChild() [0x7fa657c0101a]
STDERR: 	WebCore::executeTask() [0x7fa657fb6092]
STDERR: 	WebCore::HTMLConstructionSite::executeQueuedTasks() [0x7fa657fb637d]
STDERR: 	WebCore::HTMLConstructionSite::insertDoctype() [0x7fa657fb6d53]
STDERR: 	WebCore::HTMLTreeBuilder::processDoctypeToken() [0x7fa657fda300]
STDERR: 	WebCore::HTMLTreeBuilder::processToken() [0x7fa657fda1df]
STDERR: 	WebCore::HTMLTreeBuilder::constructTreeFromAtomicToken() [0x7fa657fda03e]
STDERR: 	WebCore::HTMLTreeBuilder::constructTreeFromToken() [0x7fa657fd9f65]
STDERR: 	WebCore::HTMLDocumentParser::pumpTokenizer() [0x7fa657fbbb9c]
STDERR: 	WebCore::HTMLDocumentParser::pumpTokenizerIfPossible() [0x7fa657fbb5e4]
STDERR: 	WebCore::HTMLDocumentParser::insert() [0x7fa657fbbf4c]
STDERR: 	WebCore::Document::write() [0x7fa657c2320e]
STDERR: 	WebCore::Document::write() [0x7fa657c23271]
STDERR: 	WebCore::V8HTMLDocument::writeCallback() [0x7fa65847435e]
STDERR: 	0x23614543a1f3

Probable cause:
Woud be r122359 since it touched VIEWPORT.

[Hayato Ito]

Marked it CRASH.
http://trac.webkit.org/changeset/122415

[Adam Barth]

Created attachment 152050 [details]
Patch

[Tony Chang]

Comment on attachment 152050 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=152050&action=review

> LayoutTests/fast/viewport/viewport-legacy-xhtmlmp-remove-and-add-expected.txt:2
> +ALERT: viewport size 320x480 scale 1 with limits [1, 5] and userScalable true
> +ALERT: viewport size 320x480 scale 1 with limits [1, 5] and userScalable true

Nit: It would be nicer if the test said PASS/FAIL rather than ALERT.  Maybe use js-test-pre?

> LayoutTests/fast/viewport/viewport-legacy-xhtmlmp-remove-and-add.html:8
> +    XHTML-MP is used for mobile documents which are assumed to be designed for
> +    handheld devices, hence using the viewport size as the initial containing

Nit: Since this is a dumpAsText test, should we just put this in a <p>?

[Adam Barth]

These are the style of all the tests in this directory.  I agree that the style is kind of goofy.  I'm not sure whether it's worth making this one test different from the rest.

[Tony Chang]

I don't feel strongly about this one way or another.  Feel free to only resolve conflicts and land.

[Adam Barth]

I've filed https://bugs.webkit.org/show_bug.cgi?id=91150 about improving these tests as a whole.

[Adam Barth]

Committed r122509: <http://trac.webkit.org/changeset/122509>