Details
P3: Somewhat important Description
When visiting accounts.google.com with --enable-experimental-web-platform-features, QtWebEngine crashes with:
[42982:42982:0302/125308.774871:FATAL:scoped_refptr.h(235)] Check failed: ptr_. #0 0x7fba0813c9a5 base::debug::CollectStackTrace() #1 0x7fba07f65a89 base::debug::StackTrace::StackTrace() #2 0x7fba07f65a40 base::debug::StackTrace::StackTrace() #3 0x7fba07f42914 logging::LogMessage::~LogMessage() #4 0x7fba07f4307e logging::LogMessage::~LogMessage() #5 0x7fba07f4a9a3 logging::CheckError::~CheckError() #6 0x7fba0706e688 scoped_refptr<>::operator->() #7 0x7fba09f2c554 device::BluetoothAdapterFactory::GetAdapter() #8 0x7fba0e67571d BluetoothAdapterFactoryWrapper::AcquireAdapter() #9 0x7fba0e613841 content::WebBluetoothServiceImpl::GetAvailability() #10 0x7fba03e84169 blink::mojom::WebBluetoothServiceStubDispatch::AcceptWithResponder() #11 0x7fba0e64a92c blink::mojom::WebBluetoothServiceStub<>::AcceptWithResponder() #12 0x7fba08f15edc mojo::InterfaceEndpointClient::HandleValidatedMessage() #13 0x7fba08f13e31 mojo::InterfaceEndpointClient::HandleIncomingMessageThunk::Accept() #14 0x7fba08f255ed mojo::MessageDispatcher::Accept() #15 0x7fba08f151e7 mojo::InterfaceEndpointClient::HandleIncomingMessage() #16 0x7fba08f2ab27 mojo::internal::MultiplexRouter::ProcessIncomingMessage() #17 0x7fba08f292e0 mojo::internal::MultiplexRouter::Accept() #18 0x7fba08f255ed mojo::MessageDispatcher::Accept() #19 0x7fba08f0ba0f mojo::Connector::DispatchMessage() #20 0x7fba08f0be45 mojo::Connector::ReadAllAvailableMessages() #21 0x7fba08f0af26 mojo::Connector::OnHandleReadyInternal() #22 0x7fba08f0adaa mojo::Connector::OnWatcherHandleReady() #23 0x7fba08f0ef15 base::internal::FunctorTraits<>::Invoke<>() #24 0x7fba08f0ea58 base::internal::InvokeHelper<>::MakeItSo<>() #25 0x7fba08f0e490 _ZN4base8internal7InvokerINS0_9BindStateIMN4mojo9ConnectorEFvjEJNS0_17UnretainedWrapperIS4_EEEEEFvjEE7RunImplIRKS6_RKSt5tupleIJS8_EEJLm0EEEEvOT_OT0_St16integer_sequenceImJXspT1_EEEOj #26 0x7fba08f0dce5 base::internal::Invoker<>::Run() #27 0x7fba03ef1194 _ZNKR4base17RepeatingCallbackIFvjEE3RunEj #28 0x7fba03ef0a60 mojo::SimpleWatcher::DiscardReadyState() #29 0x7fba03ef40d1 base::internal::FunctorTraits<>::Invoke<>() #30 0x7fba03ef3678 base::internal::InvokeHelper<>::MakeItSo<>() #31 0x7fba03ef2a6f _ZN4base8internal7InvokerINS0_9BindStateIPFvRKNS_17RepeatingCallbackIFvjEEEjRKN4mojo18HandleSignalsStateEEJS5_EEEFvjSB_EE7RunImplIRKSD_RKSt5tupleIJS5_EEJLm0EEEEvOT_OT0_St16integer_sequenceImJXspT1_EEEOjSB_ #32 0x7fba03ef1e2e base::internal::Invoker<>::Run() #33 0x7fba08f726a6 _ZNKR4base17RepeatingCallbackIFvjRKN4mojo18HandleSignalsStateEEE3RunEjS4_ #34 0x7fba08f7174c mojo::SimpleWatcher::OnHandleReady() #35 0x7fba08f73364 base::internal::FunctorTraits<>::Invoke<>() #36 0x7fba08f73070 base::internal::InvokeHelper<>::MakeItSo<>() #37 0x7fba08f72be4 _ZN4base8internal7InvokerINS0_9BindStateIMN4mojo13SimpleWatcherEFvijRKNS3_18HandleSignalsStateEEJNS_7WeakPtrIS4_EEijS5_EEEFvvEE7RunImplIS9_St5tupleIJSB_ijS5_EEJLm0ELm1ELm2ELm3EEEEvOT_OT0_St16integer_sequenceImJXspT1_EEE #38 0x7fba08f7280c base::internal::Invoker<>::RunOnce() #39 0x7fba018468ea _ZNO4base12OnceCallbackIFvvEE3RunEv #40 0x7fba0805e88b base::TaskAnnotator::RunTask() #41 0x7fba080a8fec base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl() #42 0x7fba080a880e base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork() #43 0x7fba017ed5ba QtWebEngineCore::MessagePumpForUIQt::handleScheduledWork() #44 0x7fba017ed2db _ZZN15QtWebEngineCore18MessagePumpForUIQtC4EvENKUlvE_clEv #45 0x7fba017eedfa _ZSt13__invoke_implIvRZN15QtWebEngineCore18MessagePumpForUIQtC4EvEUlvE_JEET_St14__invoke_otherOT0_DpOT1_ #46 0x7fba017ee7c5 _ZSt10__invoke_rIvRZN15QtWebEngineCore18MessagePumpForUIQtC4EvEUlvE_JEENSt9enable_ifIXsrSt6__and_IJSt7is_voidIT_ESt14__is_invocableIT0_JDpT1_EEEE5valueES7_E4typeEOSA_DpOSB_ #47 0x7fba017edf3c _ZNSt17_Function_handlerIFvvEZN15QtWebEngineCore18MessagePumpForUIQtC4EvEUlvE_E9_M_invokeERKSt9_Any_data #48 0x7fba01bd468c std::function<>::operator()() #49 0x7fba0fc2105c QWebEngineMessagePumpScheduler::timerEvent() #50 0x7fb9f6d06588 QObject::event() #51 0x7fb9f85d38eb QApplicationPrivate::notify_helper() #52 0x7fb9f85d0c29 QApplication::notify() #53 0x7fb9f6cbec9f QCoreApplication::notifyInternal2() #54 0x7fb9f6cbf6f6 QCoreApplication::sendEvent() #55 0x7fb9f6cc045d QCoreApplicationPrivate::sendPostedEvents() #56 0x7fb9f6cbfd98 QCoreApplication::sendPostedEvents() #57 0x7fb9f6d5796c postEventSourceDispatch() #58 0x7fb9f12b8b84 g_main_context_dispatch #59 0x7fb9f130cc21 (/usr/lib/libglib-2.0.so.0.6600.7+0xa7c20) #60 0x7fb9f12b73b1 g_main_context_iteration #61 0x7fb9f6d580c7 QEventDispatcherGlib::processEvents() #62 0x7fb9ed89fbe8 QXcbGlibEventDispatcher::processEvents() #63 0x7fb9f6cbb361 QEventLoop::processEvents() #64 0x7fb9f6cbb6c3 QEventLoop::exec() #65 0x7fb9f6cbf538 QCoreApplication::exec() #66 0x7fb9f7c82814 QGuiApplication::exec() #67 0x7fb9f85d05f5 QApplication::exec() #68 0x557d9b374cad main #69 0x7fb9f610cb25 __libc_start_main #70 0x557d9b362c6e _start Task trace: #0 0x7fba08f714f7 mojo::SimpleWatcher::ArmOrNotify() #1 0x7fba08f71d3e mojo::SimpleWatcher::Context::Notify()
With a release build, it segfaults instead, but I don't have a release build with debug symbols ready at the moment.