[Webkit-unassigned] [Bug 238277] New: REGRESSION: [iOS] ASSERTION FAILED: m_layer->owner()->platformCALayerDelegatesDisplay(m_layer) in WebKit::RemoteLayerBackingStore::paintContents()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=238277

            Bug ID: 238277
           Summary: REGRESSION: [iOS] ASSERTION FAILED:
                    m_layer->owner()->platformCALayerDelegatesDisplay(m_la
                    yer) in
                    WebKit::RemoteLayerBackingStore::paintContents()
           Product: WebKit
           Version: Safari 13
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    webkit-bot-watchers-bugzilla at group.apple.com,
                    webkit-bug-importer at group.apple.com, zalan at apple.com

Created attachment 455535

  --> https://bugs.webkit.org/attachment.cgi?id=455535&action=review

crash log

The following tests are consistently asserting on iOS debug bots:

fast/frames/flattening/iframe-flattening-fullscreen.html
imported/w3c/web-platform-tests/css/css-grid/grid-model/grid-size-shrink-to-fit-001.html
imported/w3c/web-platform-tests/mathml/presentation-markup/operators/embellished-operator-001.html
imported/w3c/web-platform-tests/mathml/presentation-markup/operators/embellished-operator-002.html
imported/w3c/web-platform-tests/mathml/presentation-markup/operators/embellished-operator-003.html

ASSERTION FAILED: m_layer->owner()->platformCALayerDelegatesDisplay(m_layer)
/Volumes/Data/worker/ios-simulator-15-debug/build/Source/WebKit/Shared/RemoteLayerTree/RemoteLayerBackingStore.mm(414) : void WebKit::RemoteLayerBackingStore::paintContents()
1   0x2729d40e9 WTFCrash
2   0x254edfabb WTFCrashWithInfo(int, char const*, char const*, int)
3   0x255bc01a5 WebKit::RemoteLayerBackingStore::paintContents()
4   0x255c18057 WebKit::RemoteLayerBackingStoreCollection::paintReachableBackingStoreContents()
5   0x256831784 WebKit::RemoteLayerTreeContext::buildTransaction(WebKit::RemoteLayerTreeTransaction&, WebCore::PlatformCALayer&)
6   0x2554882d9 WebKit::RemoteLayerTreeDrawingArea::updateRendering()
7   0x25549186e decltype(*(std::__1::forward<WebKit::RemoteLayerTreeDrawingArea*&>(fp0)).*fp()) std::__1::__invoke<void (WebKit::RemoteLayerTreeDrawingArea::*&)(), WebKit::RemoteLayerTreeDrawingArea*&, void>(void (WebKit::RemoteLayerTreeDrawingArea::*&)(), WebKit::RemoteLayerTreeDrawingArea*&)
8   0x2554917ed std::__1::__bind_return<void (WebKit::RemoteLayerTreeDrawingArea::*)(), std::__1::tuple<WebKit::RemoteLayerTreeDrawingArea*>, std::__1::tuple<>, __is_valid_bind_return<void (WebKit::RemoteLayerTreeDrawingArea::*)(), std::__1::tuple<WebKit::RemoteLayerTreeDrawingArea*>, std::__1::tuple<> >::value>::type std::__1::__apply_functor<void (WebKit::RemoteLayerTreeDrawingArea::*)(), std::__1::tuple<WebKit::RemoteLayerTreeDrawingArea*>, 0ul, std::__1::tuple<> >(void (WebKit::RemoteLayerTreeDrawingArea::*&)(), std::__1::tuple<WebKit::RemoteLayerTreeDrawingArea*>&, std::__1::__tuple_indices<0ul>, std::__1::tuple<>&&)
9   0x2554917a0 std::__1::__bind_return<void (WebKit::RemoteLayerTreeDrawingArea::*)(), std::__1::tuple<WebKit::RemoteLayerTreeDrawingArea*>, std::__1::tuple<>, __is_valid_bind_return<void (WebKit::RemoteLayerTreeDrawingArea::*)(), std::__1::tuple<WebKit::RemoteLayerTreeDrawingArea*>, std::__1::tuple<> >::value>::type std::__1::__bind<void (WebKit::RemoteLayerTreeDrawingArea::*&)(), WebKit::RemoteLayerTreeDrawingArea*>::operator()<>()
10  0x255491739 WTF::Detail::CallableWrapper<std::__1::__bind<void (WebKit::RemoteLayerTreeDrawingArea::*&)(), WebKit::RemoteLayerTreeDrawingArea*>, void>::call()
11  0x254f3e762 WTF::Function<void ()>::operator()() const
12  0x25548d0b9 WebCore::Timer::fired()
13  0x29f17e556 WebCore::ThreadTimers::sharedTimerFiredInternal()
14  0x29f188991 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
15  0x29f188929 WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call()
16  0x29aa320a2 WTF::Function<void ()>::operator()() const
17  0x29f116411 WebCore::MainThreadSharedTimer::fired()
18  0x29f212276 WebCore::timerFired(__CFRunLoopTimer*, void*)
19  0x7fff2036a6c6 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
20  0x7fff2036a1c2 __CFRunLoopDoTimer
21  0x7fff20369781 __CFRunLoopDoTimers
22  0x7fff20363dc0 __CFRunLoopRun
23  0x7fff20363103 CFRunLoopRunSpecific
24  0x7fff2081941c -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
25  0x7fff20819638 -[NSRunLoop(NSRunLoop) run]
26  0x7fff2006705f _xpc_objc_main
27  0x7fff20069050 xpc_main
28  0x255bbd7ba WebKit::XPCServiceMain(int, char const**)
29  0x257bb4eeb WKXPCServiceMain
30  0x1043f4d12 main
31  0x240001e1e

https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=fast%2Fcanvas%2Fwebgl%2Fcontext-creation-and-destruction.html&test=fast%2Fframes%2Fflattening%2Fiframe-flattening-fullscreen.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-grid%2Fgrid-model%2Fgrid-size-shrink-to-fit-001.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fmathml%2Fpresentation-markup%2Foperators%2Fembellished-operator-001.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fmathml%2Fpresentation-markup%2Foperators%2Fembellished-operator-002.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fmathml%2Fpresentation-markup%2Foperators%2Fembellished-operator-003.html

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