Bug 89717 – [chromium] Layout Test fast/speech/scripted/speechgrammar-basics.html is flaky

• Status: RESOLVED
• Resolution: FIXED
• Component: Tools / Tests

[Kenneth Russell]

The following layout test is flaky in Chromium on Windows, Mac and Linux:

fast/speech/scripted/speechgrammar-basics.html

See:

http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fspeech%2Fscripted%2Fspeechgrammar-basics.html

It's gotten significantly flakier on 32-bit Linux recently. It's failing in roughly every other build:

http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Linux%2032

http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Linux%2032/builds/20016
http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Linux%2032/builds/20018
http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Linux%2032/builds/20020

Unfortunately I don't have a guess about a probable cause. The first recent build where it appeared to start crashing was:

http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Linux%2032/builds/20014

I'm going to suppress this failure in the test expectations for the moment.

[Kenneth Russell]

Committed r120986: <http://trac.webkit.org/changeset/120986>

[Hans Wennborg]

I still haven't been able to reproduce this locally, but this is the interesting bit of output from the bot:

16:22:22.845 31571 worker/3 fast/speech/scripted/navigate-away.html passed
16:22:22.892 31571 worker/3 fast/speech/scripted/speechgrammar-basics.html crashed, stack trace:
16:22:22.892 31571   	base::debug::StackTrace::StackTrace() [0x82c6874]
16:22:22.893 31571   	base::(anonymous namespace)::StackDumpSignalHandler() [0x82b175d]
16:22:22.893 31571   	0xb7802400
16:22:22.893 31571   	WebCore::EventTarget::fireEventListeners() [0x823e555]
16:22:22.893 31571   	WebCore::EventTarget::fireEventListeners() [0x823e711]
16:22:22.893 31571   	WebCore::EventTarget::dispatchEvent() [0x823e786]
16:22:22.893 31571   	WebCore::SpeechRecognition::didEnd() [0x88e1555]
16:22:22.893 31571   	WebKit::SpeechRecognitionClientProxy::didEnd() [0x80f5606]
16:22:22.893 31571   	(anonymous namespace)::ClientCallTask::run() [0x8085171]
16:22:22.893 31571   	MockWebSpeechRecognizer::StepTask::runIfValid() [0x80854f2]
16:22:22.893 31571   	MethodTask<>::run() [0x8085288]
16:22:22.893 31571   	invokeTask() [0x808ae79]
16:22:22.893 31571   	base::internal::Invoker<>::Run() [0x81c5809]
16:22:22.893 31571   	MessageLoop::RunTask() [0x82a48b0]
16:22:22.893 31571   	MessageLoop::DeferOrRunPendingTask() [0x82a4f51]
16:22:22.893 31571   	MessageLoop::DoWork() [0x82a52b1]
16:22:22.893 31571   	base::MessagePumpGlib::HandleDispatch() [0x82c0628]
16:22:22.893 31571   	(anonymous namespace)::WorkSourceDispatch() [0x82c0667]
16:22:22.893 31571   	0xb75f75e5
16:22:22.893 31571   	0xb75fb2d8
16:22:22.893 31571   	0xb75fb4b8
16:22:22.893 31571   	base::MessagePumpGlib::RunWithDispatcher() [0x82c0af9]
16:22:22.894 31571   	base::MessagePumpGlib::Run() [0x82c068e]
16:22:22.894 31571   	MessageLoop::RunInternal() [0x82a04de]
16:22:22.894 31571   	MessageLoop::Run() [0x82a05f9]
16:22:22.894 31571   	webkit_support::RunMessageLoop() [0x81c5faf]
16:22:22.894 31571   	TestShell::waitTestFinished() [0x80908d9]
16:22:22.894 31571   	TestShell::runFileTest() [0x808ee32]
16:22:22.894 31571   	runTest() [0x8067daa]
16:22:22.894 31571   	main [0x806843b]
16:22:22.894 31571   	0xb6affbd6
16:22:22.894 31571   	0x805c311
16:22:22.896 31548   fast/speech/scripted/speechgrammar-basics.html -> unexpected crash


I think it's navigate-away.html that's triggering the problem really, but it ends up crashing speechgrammar-basics.html which is run afterwards. Probably something is not right with http://trac.webkit.org/changeset/120913

[Hans Wennborg]

I think the patch in bug 90176 should fix this.

[Hans Wennborg]

Seems to be fixed by bug 90176.