Bug 304651 – REGRESSION(304792@main?): [macOS iOS] Flaky crash in site-isolation tests

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Marta Darbinyan]

There are intermittenly crashing layout tests in site-isolation both in macOS and iOS. The tests are also flaky in EWS across different PRs. 

http/tests/site-isolation/history/add-iframes-and-navigate-mainframe.html
http/tests/site-isolation/focus-click-navigation-activeElement.html
http/tests/site-isolation/history/add-iframes-and-go-back.html


 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0  com.apple.WebKit        	       0x105840e74 WebKit::WebPageProxy::broadcastFrameTreeSyncData(IPC::Connection&, WTF::ObjectIdentifierGeneric<WebCore::FrameIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits<unsigned long long>, unsigned long long>, WebCore::FrameTreeSyncSerializationData const&)
1  com.apple.WebKit        	       0x1052aa2d0 WebKit::WebPageProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&)
2  com.apple.WebKit        	       0x105dd4c6c IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::Decoder&)
3  com.apple.WebKit        	       0x1058ce084 WebKit::WebProcessProxy::dispatchMessage(IPC::Connection&, IPC::Decoder&)
4  com.apple.WebKit        	       0x10532e46c WebKit::WebProcessProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&)
5  com.apple.WebKit        	       0x105dce600 IPC::Connection::dispatchMessage(IPC::Decoder&)
6  com.apple.WebKit        	       0x105dce7c0 IPC::Connection::dispatchMessage(WTF::UniqueRef<IPC::Decoder>)
7  com.apple.WebKit        	       0x105dced68 IPC::Connection::dispatchIncomingMessages()
8  com.apple.JavaScriptCore	       0x10a8e70c4 WTF::RunLoop::performWork()
9  com.apple.JavaScriptCore	       0x10a8e8800 WTF::RunLoop::performWork(void*)
10  com.apple.CoreFoundation	       0x191ac94b8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 /AppleInternal/Library/BuildRoots/b0c24a1e-bd47-11ef-bf9c-aabfac210453/Library/Caches/com.apple.xbs/Sources/CoreFoundation/CoreFoundation/RunLoop.subproj/CFRunLoop.c:1957
11  com.apple.CoreFoundation	       0x191ac944c __CFRunLoopDoSource0 + 176 /AppleInternal/Library/BuildRoots/b0c24a1e-bd47-11ef-bf9c-aabfac210453/Library/Caches/com.apple.xbs/Sources/CoreFoundation/CoreFoundation/RunLoop.subproj/CFRunLoop.c:2001
12  com.apple.CoreFoundation	       0x191ac91bc __CFRunLoopDoSources0 + 244 /AppleInternal/Library/BuildRoots/b0c24a1e-bd47-11ef-bf9c-aabfac210453/Library/Caches/com.apple.xbs/Sources/CoreFoundation/CoreFoundation/RunLoop.subproj/CFRunLoop.c:2038
13  com.apple.CoreFoundation	       0x191ac7da8 __CFRunLoopRun + 828 /AppleInternal/Library/BuildRoots/b0c24a1e-bd47-11ef-bf9c-aabfac210453/Library/Caches/com.apple.xbs/Sources/CoreFoundation/CoreFoundation/RunLoop.subproj/CFRunLoop.c:2955
14  com.apple.CoreFoundation	       0x191ac7414 CFRunLoopRunSpecific + 608 /AppleInternal/Library/BuildRoots/b0c24a1e-bd47-11ef-bf9c-aabfac210453/Library/Caches/com.apple.xbs/Sources/CoreFoundation/CoreFoundation/RunLoop.subproj/CFRunLoop.c:3420
15  com.apple.Foundation    	       0x192bfc868 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 /AppleInternal/Library/BuildRoots/558fc4d6-d024-11ef-9ee2-d285688f7a47/Library/Caches/com.apple.xbs/Sources/Foundation/Foundation/Soil.subproj/NSRunLoop.m:373
16  WebKitTestRunner        	       0x1047ac238 WTR::TestController::platformRunUntil(bool&, WTF::Seconds)
17  WebKitTestRunner        	       0x10478c290 WTR::TestController::resetStateToConsistentValues(WTR::TestOptions const&, WTR::TestController::ResetStage)::$_13::operator()() const
18  WebKitTestRunner        	       0x10478b784 WTR::TestController::resetStateToConsistentValues(WTR::TestOptions const&, WTR::TestController::ResetStage)
19  WebKitTestRunner        	       0x1047b9cd8 WTR::TestInvocation::invoke()
20  WebKitTestRunner        	       0x104790d8c WTR::TestController::runTest(char const*)
21  WebKitTestRunner        	       0x104791170 WTR::TestController::runTestingServerLoop()
22  WebKitTestRunner        	       0x104785144 WTR::TestController::TestController(int, char const**)
23  WebKitTestRunner        	       0x104763098 main
24  dyld                    	       0x19165f154 start + 2476 /AppleInternal/Library/BuildRoots/558fc4d6-d024-11ef-9ee2-d285688f7a47/Library/Caches/com.apple.xbs/Sources/dyld/dyld/dyldMain.cpp:1298

Test results:
https://build.webkit.org/#/builders/1702/builds/645

History:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=http%2Ftests%2Fsite-isolation%2Fhistory%2Fadd-iframes-and-go-back.html&test=http%2Ftests%2Fsite-isolation%2Ffocus-click-navigation-activeElement.html&test=http%2Ftests%2Fsite-isolation%2Fhistory%2Fadd-iframes-and-navigate-mainframe.html&test=http%2Ftests%2Fsite-isolation%2Fhistory%2Fadd-iframes-and-go-back.html&style=release

[Radar WebKit Bug Importer]

<rdar://problem/167097502>

[EWS]

Test gardening commit 304909@main (22206fe1f4d0): <https://commits.webkit.org/304909@main>

Reviewed commits have been landed. Closing PR #55837 and removing active labels.

[Kiet Ho]

Pull request: https://github.com/WebKit/WebKit/pull/56270

[EWS]

Committed 305370@main (5583c5d63e5e): <https://commits.webkit.org/305370@main>

Reviewed commits have been landed. Closing PR #56270 and removing active labels.