Created attachment 395845 [details] 001-crash-log fast/text/firstline/001.html Description: This test is flaky crashing on iOS wk2 Debug.The oldest crash in the visible history is 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 0x00000002549be7ae WTFCrash + 14 (Assertions.cpp:309) 1 com.apple.WebCore 0x0000000259e4adeb WTFCrashWithInfo(int, char const*, char const*, int) + 27 2 com.apple.WebCore 0x000000025d1d7531 WebCore::Page::recomputeTextAutoSizingInAllFrames() + 145 (Page.cpp:3051) 3 com.apple.WebKit 0x0000000241866616 WebKit::WebPage::textAutoSizingAdjustmentTimerFired() + 38 (WebPage.cpp:7024) 4 com.apple.WebKit 0x00000002418a1fc7 decltype(*(std::__1::forward<WebKit::WebPage*&>(fp0)).*fp()) std::__1::__invoke<void (WebKit::WebPage::*&)(), WebKit::WebPage*&, void>(void (WebKit::WebPage::*&)(), WebKit::WebPage*&) + 119 (type_traits:4366) 5 com.apple.WebKit 0x00000002418a1f40 std::__1::__bind_return<void (WebKit::WebPage::*)(), std::__1::tuple<WebKit::WebPage*>, std::__1::tuple<>, __is_valid_bind_return<void (WebKit::WebPage::*)(), std::__1::tuple<WebKit::WebPage*>, std::__1::tuple<> >::value>::type std::__1::__apply_functor<void (WebKit::WebPage::*)(), std::__1::tuple<WebKit::WebPage*>, 0ul, std::__1::tuple<> >(void (WebKit::WebPage::*&)(), std::__1::tuple<WebKit::WebPage*>&, std::__1::__tuple_indices<0ul>, std::__1::tuple<>&&) + 64 (functional:2716) 6 com.apple.WebKit 0x00000002418a1ef9 std::__1::__bind_return<void (WebKit::WebPage::*)(), std::__1::tuple<WebKit::WebPage*>, std::__1::tuple<>, __is_valid_bind_return<void (WebKit::WebPage::*)(), std::__1::tuple<WebKit::WebPage*>, std::__1::tuple<> >::value>::type std::__1::__bind<void (WebKit::WebPage::*&)(), WebKit::WebPage*>::operator()<>() + 41 (functional:2749) 7 com.apple.WebKit 0x00000002418a1e9e WTF::Detail::CallableWrapper<std::__1::__bind<void (WebKit::WebPage::*&)(), WebKit::WebPage*>, void>::call() + 30 (Function.h:52) 8 com.apple.WebKit 0x0000000240188ae2 WTF::Function<void ()>::operator()() const + 130 (Function.h:84) 9 com.apple.WebKit 0x000000024039d91e WebCore::Timer::fired() + 30 (Timer.h:127) 10 com.apple.WebCore 0x000000025d406f24 WebCore::ThreadTimers::sharedTimerFiredInternal() + 644 (ThreadTimers.cpp:127) 11 com.apple.WebCore 0x000000025d40f731 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const + 33 (ThreadTimers.cpp:67) 12 com.apple.WebCore 0x000000025d40f6de WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call() + 30 (Function.h:52) 13 com.apple.WebCore 0x0000000259e5f332 WTF::Function<void ()>::operator()() const + 130 (Function.h:84) 14 com.apple.WebCore 0x000000025d3ca34b WebCore::MainThreadSharedTimer::fired() + 139 (MainThreadSharedTimer.cpp:84) 15 com.apple.WebCore 0x000000025d478596 WebCore::timerFired(__CFRunLoopTimer*, void*) + 38 (MainThreadSharedTimerCF.cpp:75) 16 com.apple.CoreFoundation 0x000000024c1f23f4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20 17 com.apple.CoreFoundation 0x000000024c1f208e __CFRunLoopDoTimer + 1038 18 com.apple.CoreFoundation 0x000000024c1f16ea __CFRunLoopDoTimers + 282 19 com.apple.CoreFoundation 0x000000024c1ec33e __CFRunLoopRun + 1950 20 com.apple.CoreFoundation 0x000000024c1eb884 CFRunLoopRunSpecific + 404 21 com.apple.Foundation 0x0000000107d1f831 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 211 22 com.apple.Foundation 0x0000000107d1fa45 -[NSRunLoop(NSRunLoop) run] + 76 23 libxpc.dylib 0x000000024de3e5ae _xpc_objc_main + 297 24 libxpc.dylib 0x000000024de40976 xpc_main + 132 25 com.apple.WebKit 0x000000024088533b WebKit::XPCServiceMain(int, char const**) + 1067 (XPCServiceMain.mm:172) 26 com.apple.WebKit 0x0000000241c9f39b WKXPCServiceMain + 27 (WKMain.mm:33) 27 com.apple.WebKit.WebContent 0x0000000107c63d72 main + 34 (AuxiliaryProcessMain.cpp:30) 28 libdyld.dylib 0x000000024db0a10d start + 1
<rdar://problem/61466649>
I have marked this test as flaky crashing while this issue is investigated. https://trac.webkit.org/changeset/259735/webkit
Correct link for this test: https://results.webkit.org/?platform=ios&style=debug&recent=false&model=iPhone%20SE&limit=50000&suite=layout-tests&test=fast%2Ftext%2Ffirstline%2F001.html
*** This bug has been marked as a duplicate of bug 209450 ***