[Webkit-unassigned] [Bug 229580] [ Catalina EWS ] webgl/2.0.0/* tests are flaky crashing ASSERTION FAILED: !needsLayout()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=229580

--- Comment #5 from ayumi_kojima at apple.com ---
I was able to reproduce the crash on Catalina. The crash seems to have started somewhere between r242257 and r242309 (No revisions to test in-between).

With r242256 and older revisions, the test crashed but with a different stderr:

ERROR: invalid option: JSC_useSharedArrayBuffer=1
ERROR: invalid option: JSC_useKernTCSM=false
2021-09-10 16:56:36.239 DumpRenderTree[18484:908573] NetworkStorageDB:_openDBReadConnections: failed to open read connection to DB @ (null)/Cache.db.  Error=14. Cause=unable to open database file
2021-09-10 16:56:36.239 DumpRenderTree[18484:908573] CacheRead: unable to open cache files in (null)
2021-09-10 16:56:36.743 DumpRenderTree[18484:908573] *** WARNING: Method convertPointToBase: in class NSView is deprecated on 10.7 and later. It should not be used in new applications. 
ASSERTION FAILED: !needsLayout()
./page/FrameView.cpp(4199) : virtual void WebCore::FrameView::paintContents(WebCore::GraphicsContext &, const WebCore::IntRect &, WebCore::Widget::SecurityOriginPaintPolicy)
1   0x110207589 WTFCrash
2   0x11ce555fb WTFCrashWithInfo(int, char const*, char const*, int)
3   0x11fc844fd WebCore::FrameView::paintContents(WebCore::GraphicsContext&, WebCore::IntRect const&, WebCore::Widget::SecurityOriginPaintPolicy)
4   0x10ed6f400 -[WebFrame(WebInternal) _drawRect:contentsOnly:]
5   0x10edc8041 -[WebHTMLView drawSingleRect:]
6   0x10edc8778 -[WebHTMLView drawRect:]
7   0x7fff32b8259f _NSViewDrawRect
8   0x7fff32b818ae -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:]
9   0x7fff32b81c3f -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:]
10  0x7fff32b81c3f -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:]
11  0x7fff32b81c3f -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:]
12  0x7fff32d16c58 -[NSView displayRectIgnoringOpacity:inContext:]
13  0x11d8f5d2c WebCore::Widget::paint(WebCore::GraphicsContext&, WebCore::IntRect const&, WebCore::Widget::SecurityOriginPaintPolicy)
14  0x11fe679a3 WebCore::ScrollView::paint(WebCore::GraphicsContext&, WebCore::IntRect const&, WebCore::Widget::SecurityOriginPaintPolicy)
15  0x1205946cc WebCore::RenderWidget::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
16  0x120594f61 WebCore::RenderWidget::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
17  0x12045df23 WebCore::RenderLayer::paintForegroundForFragmentsWithPhase(WebCore::PaintPhase, WTF::Vector<WebCore::LayerFragment, 1ul, WTF::CrashOnOverflow, 16ul> const&, WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::RenderObject*)
18  0x12045bcf6 WebCore::RenderLayer::paintForegroundForFragments(WTF::Vector<WebCore::LayerFragment, 1ul, WTF::CrashOnOverflow, 16ul> const&, WebCore::GraphicsContext&, WebCore::GraphicsContext&, WebCore::LayoutRect const&, bool, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::RenderObject*)
19  0x120457986 WebCore::RenderLayer::paintLayerContents(WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>)
20  0x120475f79 WebCore::RenderLayerBacking::paintIntoLayer(WebCore::GraphicsLayer const*, WebCore::GraphicsContext&, WebCore::IntRect const&, WTF::OptionSet<WebCore::PaintBehavior>, unsigned char)
21  0x120476511 WebCore::RenderLayerBacking::paintContents(WebCore::GraphicsLayer const*, WebCore::GraphicsContext&, unsigned char, WebCore::FloatRect const&, unsigned int)
22  0x11ff8ae17 WebCore::GraphicsLayer::paintGraphicsLayerContents(WebCore::GraphicsContext&, WebCore::FloatRect const&, unsigned int)
23  0x11fff338d WebCore::GraphicsLayerCA::platformCALayerPaintContents(WebCore::PlatformCALayer*, WebCore::GraphicsContext&, WebCore::FloatRect const&, unsigned int)
24  0x11d4fd2d4 WebCore::PlatformCALayer::drawLayerContents(CGContext*, WebCore::PlatformCALayer*, WTF::Vector<WebCore::FloatRect, 5ul, WTF::CrashOnOverflow, 16ul>&, unsigned int)
25  0x11d788e93 -[WebLayer drawInContext:]
26  0x7fff4127b86d CABackingStoreUpdate_
27  0x7fff412db4ad invocation function for block in CA::Layer::display_()
28  0x7fff4127ad86 -[CALayer _display]
29  0x11d78946b -[WebSimpleLayer display]
30  0x7fff41279e09 CA::Layer::display_if_needed(CA::Transaction*)
31  0x7fff41258106 CA::Context::commit_transaction(CA::Transaction*, double)

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