Created attachment 395840 [details] empty-document-delete-crash-log editing/editability/empty-document-delete.html Description: This test is flaky crashing on iOS wk2 Debug when using the iPhone SE simulator. This test has only crashed three times total, in the visible history, with the oldest crash on 03/26/2020. History: https://results.webkit.org/?suite=layout-tests&test=editing%2Feditability%2Fempty-document-delete.html&platform=ios&style=debug&recent=false&model=iPhone%20SE&limit=50000 Crash log: Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.JavaScriptCore 0x000000010c8f93ee WTFCrash + 14 (Assertions.cpp:309) 1 com.apple.WebKit 0x000000011bd3d1db WebKit::EditorState::postLayoutData() const + 91 (EditorState.h:157) 2 com.apple.WebKit 0x000000011ceca25f -[WKContentView(WKInteraction) _selectionClipRect] + 351 (WKContentViewInteraction.mm:1998) 3 com.apple.UIKitCore 0x0000000144028247 -[UITextSelectionView updateSelectionRects] + 2647 4 com.apple.UIKitCore 0x0000000144028d09 -[UITextSelectionView updateSelectionRectsIfNeeded] + 84 5 com.apple.UIKitCore 0x0000000144028c78 __51-[UITextSelectionView deferredUpdateSelectionRects]_block_invoke + 34 6 com.apple.CoreFoundation 0x000000011353f867 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23 7 com.apple.CoreFoundation 0x000000011353a2fe __CFRunLoopDoObservers + 430 8 com.apple.CoreFoundation 0x000000011353a863 __CFRunLoopRun + 1235 9 com.apple.CoreFoundation 0x000000011353a066 CFRunLoopRunSpecific + 438 10 com.apple.Foundation 0x0000000112c0b86f -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 211 11 org.webkit.WebKitTestRunnerApp 0x000000010b9adfd0 WTR::TestController::platformRunUntil(bool&, WTF::Seconds) + 304 12 org.webkit.WebKitTestRunnerApp 0x000000010b96b47f WTR::TestController::runUntil(bool&, WTF::Seconds) + 79 13 org.webkit.WebKitTestRunnerApp 0x000000010b971cf4 WTR::TestController::clearIndexedDatabases() + 100 14 org.webkit.WebKitTestRunnerApp 0x000000010b971308 WTR::TestController::resetStateToConsistentValues(WTR::TestOptions const&, WTR::TestController::ResetStage) + 1096 15 org.webkit.WebKitTestRunnerApp 0x000000010b9b3598 WTR::TestInvocation::invoke() + 520 16 org.webkit.WebKitTestRunnerApp 0x000000010b975498 WTR::TestController::runTest(char const*) + 536 17 org.webkit.WebKitTestRunnerApp 0x000000010b975ed6 WTR::TestController::runTestingServerLoop() + 214 18 org.webkit.WebKitTestRunnerApp 0x000000010b96bef7 WTR::TestController::run() + 39 19 org.webkit.WebKitTestRunnerApp 0x000000010b96b821 WTR::TestController::TestController(int, char const**) + 897 20 org.webkit.WebKitTestRunnerApp 0x000000010b96bfc3 WTR::TestController::TestController(int, char const**) + 35 21 org.webkit.WebKitTestRunnerApp 0x000000010b9517cc -[WebKitTestRunnerApp _runTestController] + 44 22 com.apple.Foundation 0x0000000112c21c30 __NSThreadPerformPerform + 259 23 com.apple.CoreFoundation 0x0000000113540471 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 24 com.apple.CoreFoundation 0x000000011354039c __CFRunLoopDoSource0 + 76 25 com.apple.CoreFoundation 0x000000011353fbcc __CFRunLoopDoSources0 + 268 26 com.apple.CoreFoundation 0x000000011353a87f __CFRunLoopRun + 1263 27 com.apple.CoreFoundation 0x000000011353a066 CFRunLoopRunSpecific + 438 28 com.apple.GraphicsServices 0x000000011315fbb0 GSEventRunModal + 65 29 com.apple.UIKitCore 0x0000000143d70d4d UIApplicationMain + 1621 30 org.webkit.WebKitTestRunnerApp 0x000000010b95197b main + 139 31 libdyld.dylib 0x0000000118d36c25 start + 1
<rdar://problem/61465064>
I have marked this test as flaky crashing while this issue is investigated. https://trac.webkit.org/changeset/259733/webkit