228668 2021-07-30 16:16:47 -0700 ASSERTION FAILED: m_messagesBeingDispatched.isEmpty() on http/tests/resourceLoadStatistics/ping-to-prevalent-resource.html 2021-10-15 11:15:37 -0700 1 1 1 Unclassified WebKit WebKit2 WebKit Nightly Build iPhone / iPad Unspecified RESOLVED DUPLICATE 228164 InRadar P2 Normal --- 1 ayumi_kojima webkit-unassigned achristensen cdumez katherine_cheney kkinnunen webkit-bot-watchers-bugzilla webkit-bug-importer wilander oldest_to_newest 1780987 0 ayumi_kojima 2021-07-30 16:16:47 -0700 http/tests/resourceLoadStatistics/ping-to-prevalent-resource.html Is flaky crashing on iOS 14 E Simulator Debug. History: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2FresourceLoadStatistics%2Fping-to-prevalent-resource.html Crash log: ASSERTION FAILED: m_messagesBeingDispatched.isEmpty() /Volumes/Data/worker/ios-simulator-14-debug/build/Source/WebKit/Platform/IPC/Connection.cpp(228) : void IPC::Connection::SyncMessageState::dispatchMessagesAndResetDidScheduleDispatchMessagesForConnection(IPC::Connection &) 1 0x10e2e8c39 WTFCrash 2 0x11c1e20bb WTFCrashWithInfo(int, char const*, char const*, int) 3 0x11c25dc8c IPC::Connection::SyncMessageState::dispatchMessagesAndResetDidScheduleDispatchMessagesForConnection(IPC::Connection&) 4 0x11c276871 IPC::Connection::SyncMessageState::processIncomingMessage(IPC::Connection&, std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >&)::$_2::operator()() 5 0x11c27677e WTF::Detail::CallableWrapper<IPC::Connection::SyncMessageState::processIncomingMessage(IPC::Connection&, std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >&)::$_2, void>::call() 6 0x10e316542 WTF::Function<void ()>::operator()() const 7 0x10e39fbf0 WTF::RunLoop::performWork() 8 0x10e3a4621 WTF::RunLoop::performWork(void*) 9 0x1183d4ede __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 10 0x1183d4dd6 __CFRunLoopDoSource0 11 0x1183d429e __CFRunLoopDoSources0 12 0x1183ce9f7 __CFRunLoopRun 13 0x1183ce1a7 CFRunLoopRunSpecific 14 0x117b54204 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] 15 0x10cbe7f0e WTR::TestController::platformRunUntil(bool&, WTF::Seconds) 16 0x10cbab8cf WTR::TestController::runUntil(bool&, WTF::Seconds) 17 0x10cbb1bb5 WTR::TestController::statisticsResetToConsistentState() 18 0x10cc1049e WTR::TestInvocation::didReceiveMessageFromInjectedBundle(OpaqueWKString const*, void const*) 19 0x10cbb3cdb WTR::TestController::didReceiveMessageFromInjectedBundle(OpaqueWKString const*, void const*) 20 0x10cbaf1fc WTR::TestController::didReceiveMessageFromInjectedBundle(OpaqueWKContext const*, OpaqueWKString const*, void const*, void const*) 21 0x11d7313cd WebKit::WebContextInjectedBundleClient::didReceiveMessageFromInjectedBundle(WebKit::WebProcessPool&, WTF::String const&, API::Object*) 22 0x11d8ccb15 WebKit::WebProcessPool::handleMessage(IPC::Connection&, WTF::String const&, WebKit::UserData const&) 23 0x11e71a679 void IPC::callMemberFunctionImpl<WebKit::WebProcessPool, void (WebKit::WebProcessPool::*)(IPC::Connection&, WTF::String const&, WebKit::UserData const&), std::__1::tuple<WTF::String, WebKit::UserData>, 0ul, 1ul>(WebKit::WebProcessPool*, void (WebKit::WebProcessPool::*)(IPC::Connection&, WTF::String const&, WebKit::UserData const&), IPC::Connection&, std::__1::tuple<WTF::String, WebKit::UserData>&&, std::__1::integer_sequence<unsigned long, 0ul, 1ul>) 24 0x11e71a490 void IPC::callMemberFunction<WebKit::WebProcessPool, void (WebKit::WebProcessPool::*)(IPC::Connection&, WTF::String const&, WebKit::UserData const&), std::__1::tuple<WTF::String, WebKit::UserData>, std::__1::integer_sequence<unsigned long, 0ul, 1ul> >(IPC::Connection&, std::__1::tuple<WTF::String, WebKit::UserData>&&, WebKit::WebProcessPool*, void (WebKit::WebProcessPool::*)(IPC::Connection&, WTF::String const&, WebKit::UserData const&)) 25 0x11e719e55 void IPC::handleMessage<Messages::WebProcessPool::HandleMessage, WebKit::WebProcessPool, void (WebKit::WebProcessPool::*)(IPC::Connection&, WTF::String const&, WebKit::UserData const&)>(IPC::Connection&, IPC::Decoder&, WebKit::WebProcessPool*, void (WebKit::WebProcessPool::*)(IPC::Connection&, WTF::String const&, WebKit::UserData const&)) 26 0x11e719be6 WebKit::WebProcessPool::didReceiveMessage(IPC::Connection&, IPC::Decoder&) 27 0x11c76d9d4 IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::Decoder&) 28 0x11d8cc0ae WebKit::WebProcessPool::dispatchMessage(IPC::Connection&, IPC::Decoder&) 29 0x11d8d9773 WebKit::WebProcessProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) 30 0x11c264b34 IPC::Connection::dispatchMessage(IPC::Decoder&) 31 0x11c26531f IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) 1780988 1 webkit-bug-importer 2021-07-30 16:17:07 -0700 <rdar://problem/81347376> 1780998 2 ayumi_kojima 2021-07-30 16:39:47 -0700 I was not able to reproduce the crash on iOS 15 simulator on my local machine using: run-webkit-tests --iterations 500 --exit-after-n-failures 2 --exit-after-n-crashes-or-timeouts 2 --ios-simulator http/tests/resourceLoadStatistics/ping-to-prevalent-resource.html 1804911 3 ayumi_kojima 2021-10-15 11:06:26 -0700 I was not able to reproduce the failure locally on iOS 1 simulator using run-webkit-tests --ios-simulator --debug --force --iterations 500 --exit-after-n-crashes-or-timeouts 1 http/tests/resourceLoadStatistics/ping-to-prevalent-resource.html 1804916 4 ayumi_kojima 2021-10-15 11:15:37 -0700 *** This bug has been marked as a duplicate of bug 228164 ***