TestWebKitAPI.WebKit.TextSize Is constantly timing out on iPadOS Debug ToT and since around 249232@main. HISTORY: https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.WebKit.TextSize&limit=50000 DIFF: TestWebKitAPI.WebKit.TextSize ERROR: Error while launching com.apple.WebKit.Networking: Connection invalid /Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-Build/build/Source/WebKit/UIProcess/Launcher/cocoa/ProcessLauncherCocoa.mm(233) : auto WebKit::ProcessLauncher::launchProcess()::(anonymous class)::operator()(xpc_object_t) const ASSERTION FAILED: settings().textAutosizingEnabled() && settings().textAutosizingUsesIdempotentMode() page/Page.cpp(3735) : void WebCore::Page::recomputeTextAutoSizingInAllFrames() 1 0x1de739c69 WTFCrash 2 0x207a2f97b WTFCrashWithInfo(int, char const*, char const*, int) 3 0x20c13fad1 WebCore::Page::recomputeTextAutoSizingInAllFrames() 4 0x1c1dbfb71 WebKit::WebPage::textAutoSizingAdjustmentTimerFired() 5 0x1c1e03b89 decltype(*(static_cast<WebKit::WebPage*&>(fp0)).*fp()) std::__1::__invoke<void (WebKit::WebPage::*&)(), WebKit::WebPage*&, void>(void (WebKit::WebPage::*&)(), WebKit::WebPage*&) 6 0x1c1e03b0d 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<>&&) 7 0x1c1e06250 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()<>() 8 0x1c1e061e9 WTF::Detail::CallableWrapper<std::__1::__bind<void (WebKit::WebPage::*&)(), WebKit::WebPage*>, void>::call() 9 0x1bf584442 WTF::Function<void ()>::operator()() const 10 0x1bfb45a59 WebCore::Timer::fired() 11 0x20c395a36 WebCore::ThreadTimers::sharedTimerFiredInternal() 12 0x20c3a32c1 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const 13 0x20c3a3259 WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call() 14 0x207a4ff52 WTF::Function<void ()>::operator()() const 15 0x20c32e591 WebCore::MainThreadSharedTimer::fired() 16 0x20c4294a6 WebCore::timerFired(__CFRunLoopTimer*, void*) 17 0x1a86480fa __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ 18 0x1a8647bc8 __CFRunLoopDoTimer 19 0x1a8647189 __CFRunLoopDoTimers 20 0x1a864176d __CFRunLoopRun 21 0x1a8640a90 CFRunLoopRunSpecific 22 0x1a8f90e31 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] 23 0x1a8f9104f -[NSRunLoop(NSRunLoop) run] 24 0x1a9a9efeb _xpc_objc_main 25 0x1a9aa0fd4 xpc_main 26 0x1c03271c2 WebKit::XPCServiceMain(int, char const**) 27 0x1c24c4c0b WKXPCServiceMain 28 0x104cccdb2 main 29 0x1a8209f21 30 0x10f47e51e DIFF URL: https://build.webkit.org/#/builders/265/builds/1966/steps/18/logs/stdio
<rdar://problem/98215116>
I was able to bisect this issue to a regression range of 249233@main(Timeout) - 249228@main(Passing). There were no builds available to test on between these commits. However, 249232@main seems like the most likely candidate to have caused a regression. This was bisected by running 2 iterations with command: run-api-tests --ios-simulator --debug TestWebKitAPI.WebKit.TextSize
249232@main did not cause the regression Adding Simon and Alan since they were involved with the introduction of that assert several years ago.
In that range I would guess http://commits.webkit.org/249229@main is the cause
https://github.com/WebKit/WebKit/compare/c4ea4e1c130b9cea574c39e2a742dc7bf00e0b2b...f206ea6899e79d191dc9ef80c7029f7e2f6ca20e
The constant timeout is also happening on iOS16 iPad Debug. However, the diff is slightly different now. DIFF: ASSERTION FAILED: settings().textAutosizingEnabled() && settings().textAutosizingUsesIdempotentMode() page/Page.cpp(3736) : void WebCore::Page::recomputeTextAutoSizingInAllFrames() 1 0x10b05e8dc WTFCrash 2 0x146f0ac10 WebCore::JSDOMGlobalObject* JSC::jsCast<WebCore::JSDOMGlobalObject*, JSC::JSGlobalObject>(JSC::JSGlobalObject*) 3 0x14a9ad120 WebCore::Page::recomputeTextAutoSizingInAllFrames() 4 0x133344e6c WebKit::webpage::textAutoSizingAdjustmentTimerFired() 5 0x133383a3c decltype(*(static_cast<WebKit::WebPage*&>(fp0)).*fp()) std::__1::__invoke<void (WebKit::webpage::*&)(), WebKit::WebPage*&, void>(void (WebKit::webpage::*&)(), WebKit::WebPage*&) 6 0x1333839c4 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<>&&) 7 0x133385c3c 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()<>() 8 0x133385bb8 WTF::detail::CallableWrapper<std::__1::__bind<void (WebKit::webpage::*&)(), WebKit::WebPage*>, void>::call() 9 0x130f33dbc WTF::Function<void ()>::operator()() const 10 0x131212b28 WebCore::Timer::fired() 11 0x14abd053c WebCore::ThreadTimers::sharedTimerFiredInternal() 12 0x14abd8e6c WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const 13 0x14abd8df0 WTF::detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call() 14 0x1490711ac WTF::Function<void ()>::operator()() const 15 0x14ab79044 WebCore::MainThreadSharedTimer::fired() 16 0x14ac52228 WebCore::timerFired(__CFRunLoopTimer*, void*) 17 0x101c2d720 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ 18 0x101c2d3dc __CFRunLoopDoTimer 19 0x101c2cac8 __CFRunLoopDoTimers 20 0x101c2728c __CFRunLoopRun 21 0x101c2675c CFRunLoopRunSpecific 22 0x1040d000c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] 23 0x1040d01e0 -[NSRunLoop(NSRunLoop) run] 24 0x102cdb528 _xpc_objc_main 25 0x102cdd704 xpc_main 26 0x1319bcd90 WebKit::XPCServiceMain(int, char const**) 27 0x133b11094 WKXPCServiceMain 28 0x100723d04 main 29 0x100a91fa0 (null) 30 0x1008b908c (null) 31 0xa451000000000000 (null) Build URL: https://build.webkit.org/#/builders/666/builds/3/steps/18/logs/stdio