Bug 102724 – [chromium] Layout tests svg/carto.net/colourpicker.svg and svg/custom/gradient-stop-corner-cases.svg are failing

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

[Jian Li]

The following layout tests are causing assertion on Mac Dbg and Linux Dbg

svg/carto.net/colourpicker.svg
svg/custom/gradient-stop-corner-cases.svg

The stack is:

STDERR: [28099:28099:1031633578430:FATAL:SkBlitRow_opts_SSE2.cpp(115)] third_party/skia/src/opts/SkBlitRow_opts_SSE2.cpp:115: failed assertion "alpha == 255"
STDERR: 
STDERR: 	base::debug::StackTrace::StackTrace() [0x7f62f08e29f6]
STDERR: 	logging::LogMessage::~LogMessage() [0x7f62f0917837]
STDERR: 	SkDebugf_FileLine() [0x7f62ef737dd7]
STDERR: 	S32A_Opaque_BlitRow32_SSE2() [0x7f62ef901c95]
STDERR: 	SkARGB32_Shader_Blitter::blitV() [0x7f62ef77d470]
STDERR: 	do_scanline() [0x7f62ef801dca]
STDERR: 	antifilldot8() [0x7f62ef801f0f]
STDERR: 	antifillrect() [0x7f62ef8020f6]
STDERR: 	antifillrect() [0x7f62ef80240d]
STDERR: 	SkScan::AntiFillRect() [0x7f62ef8024aa]
STDERR: 	SkScan::AntiFillRect() [0x7f62ef8025af]
STDERR: 	SkDraw::drawRect() [0x7f62ef7a0f07]
STDERR: 	SkDevice::drawRect() [0x7f62ef79e151]
STDERR: 	SkCanvas::drawRect() [0x7f62ef7873b6]
STDERR: 	WebCore::GraphicsContext::fillRect() [0x7f62f3c6a6ab]
STDERR: 	WebCore::RenderSVGRect::fillShape() [0x7f62f47a7dad]
STDERR: 	WebCore::RenderSVGResourceGradient::postApplyResource() [0x7f62f47b4e18]
STDERR: 	WebCore::RenderSVGShape::fillShape() [0x7f62f47c7355]
STDERR: 	WebCore::RenderSVGShape::fillAndStrokeShape() [0x7f62f47c7592]
STDERR: 	WebCore::RenderSVGShape::paint() [0x7f62f47c7910]
STDERR: 	WebCore::RenderSVGContainer::paint() [0x7f62f479df24]
STDERR: 	WebCore::RenderBox::paint() [0x7f62f45e0f12]
STDERR: 	WebCore::RenderSVGRoot::paintReplaced() [0x7f62f47c33d1]
STDERR: 	WebCore::RenderReplaced::paint() [0x7f62f46eddca]
STDERR: 	WebCore::RenderLayer::paintLayerContents() [0x7f62f466edcd]
STDERR: 	WebCore::RenderLayer::paintLayerContentsAndReflection() [0x7f62f466de2e]
STDERR: 	WebCore::RenderLayer::paintLayer() [0x7f62f466dcf8]
STDERR: 	WebCore::RenderLayer::paintList() [0x7f62f466f4bb]
STDERR: 	WebCore::RenderLayer::paintLayerContents() [0x7f62f466f013]
STDERR: 	WebCore::RenderLayer::paintLayerContentsAndReflection() [0x7f62f466de2e]
STDERR: 	WebCore::RenderLayer::paintLayer() [0x7f62f466dcf8]
STDERR: 	WebCore::RenderLayer::paint() [0x7f62f466ce42]
STDERR: 	WebCore::FrameView::paintContents() [0x7f62f4439f93]
STDERR: 	WebCore::ScrollView::paint() [0x7f62f3b3f872]
STDERR: 	WebKit::PageWidgetDelegate::paint() [0x7f62f2dd6a25]
STDERR: 	WebKit::WebViewImpl::paint() [0x7f62f2e80fd3]
STDERR: 	WebViewHost::paintRect() [0x4aee00]
STDERR: 	WebViewHost::paintInvalidatedRegion() [0x4af03c]
STDERR: 	TestShell::dump() [0x49ae7f]
STDERR: 	TestShell::testFinished() [0x49977e]
STDERR: 	DRTTestRunner::WorkQueue::processWorkSoon() [0x4745cc]
STDERR: 	DRTTestRunner::locationChangeDone() [0x47583d]
STDERR: 	WebViewHost::locationChangeDone() [0x4ae322]
STDERR: 	WebViewHost::didFinishLoad() [0x4aacd4]
STDERR: 	WebKit::FrameLoaderClientImpl::dispatchDidFinishLoad() [0x7f62f2db5c2b]
STDERR: 	WebCore::FrameLoader::checkLoadCompleteForThisFrame() [0x7f62f4359bd2]
STDERR: 	WebCore::FrameLoader::checkLoadComplete() [0x7f62f435a78e]
STDERR: 	WebCore::DocumentLoader::finishedLoading() [0x7f62f4332bee]
STDERR: 	WebCore::MainResourceLoader::didFinishLoading() [0x7f62f43700ef]
STDERR: 	WebCore::ResourceLoader::didFinishLoading() [0x7f62f43858e9]
STDERR: 	WebCore::ResourceHandleInternal::didFinishLoading() [0x7f62f3cc47ae]
STDERR: 	webkit_glue::WebURLLoaderImpl::Context::OnCompletedRequest() [0x7f62ef1f4fe5]
STDERR: 	(anonymous namespace)::RequestProxy::NotifyCompletedRequest() [0x5ed1ef]
STDERR: 	base::internal::RunnableAdapter<>::Run() [0x5f36b5]
STDERR: 	base::internal::InvokeHelper<>::MakeItSo() [0x5f3060]
STDERR: 	base::internal::Invoker<>::Run() [0x5f2972]
STDERR: 	base::Callback<>::Run() [0x7f62f08da3bd]
STDERR: 	MessageLoop::RunTask() [0x7f62f091dad1]
STDERR: 	MessageLoop::DeferOrRunPendingTask() [0x7f62f091dbec]
STDERR: 	MessageLoop::DoWork() [0x7f62f091e481]
STDERR: 	base::MessagePumpGlib::HandleDispatch() [0x7f62f08bf2c9]
STDERR: 	(anonymous namespace)::WorkSourceDispatch() [0x7f62f08be9db]


Probable cause:

Not sure who is the culprit. But based on flakiness dashboard, the 1st regression occurred between the following range:
http://trac.webkit.org/log/?verbose=on&rev=135165&stop_rev=135163