[UE] Bug: v8::Isolate::New crashes Unreal Editor the second time I run the Editor

[cf]

前置阅读 | Pre-reading

• 文档/Doc
• Issues
• FAQ

Puer的版本 | Puer Version

1.0.5

UE的版本 | UE Version

5.4.4

发生在哪个平台 | Platform

Editor(mac)

错误信息 | Error Message

Caught signal

v8::internal::GetPlatformPageAllocator() Address = 0x4ddc7c5b8 (filename not found) [in UnrealEditor-JsEnv-0052.dylib]
v8::internal::IsolateAllocator::IsolateAllocator() Address = 0x4dd95e7a4 (filename not found) [in UnrealEditor-JsEnv-0052.dylib]
v8::internal::Isolate::New() Address = 0x4dd81cad4 (filename not found) [in UnrealEditor-JsEnv-0052.dylib]
v8::Isolate::New(v8::Isolate::CreateParams const&) Address = 0x4dd6c84e4 (filename not found) [in UnrealEditor-JsEnv-0052.dylib]
puerts::FJsEnvImpl::FJsEnvImpl(std::__1::shared_ptr<puerts::IJSModuleLoader>, std::__1::shared_ptr<puerts::ILogger>, int, std::__1::function<void (FString const&)>, FString, void*, void*) Address = 0x4de25a2a0 (filename not found) [in UnrealEditor-JsEnv-0052.dylib]
std::__1::__unique_if<puerts::FJsEnvImpl>::__unique_single std::__1::make_unique[abi:ne180100]<puerts::FJsEnvImpl, std::__1::shared_ptr<puerts::IJSModuleLoader>, std::__1::shared_ptr<puerts::ILogger>&, int&, std::__1::function<void (FString const&)>&, FString const&, void*&, void*&>(std::__1::shared_ptr<puerts::IJSModuleLoader>&&, std::__1::shared_ptr<puerts::ILogger>&, int&, std::__1::function<void (FString const&)>&, FString const&, void*&, void*&) Address = 0x4de1d5c08 [/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__memory/unique_ptr.h, line 597] [in UnrealEditor-JsEnv-0052.dylib]
puerts::FJsEnv::FJsEnv(std::__1::shared_ptr<puerts::IJSModuleLoader>, std::__1::shared_ptr<puerts::ILogger>, int, std::__1::function<void (FString const&)>, FString, void*, void*) Address = 0x4de1d5dc8 [/Users/carter/Documents/Unreal Projects/LyraStarterGame3/Plugins/Puerts/Source/JsEnv/Private/JsEnv.cpp, line 22] [in UnrealEditor-JsEnv-0052.dylib]
SharedPointerInternals::TIntrusiveReferenceController<puerts::FJsEnv, (ESPMode)1>::TIntrusiveReferenceController<std::__1::unique_ptr<puerts::DefaultJSModuleLoader, std::__1::default_delete<puerts::DefaultJSModuleLoader>>, std::__1::shared_ptr<puerts::FDefaultLogger>, int>(std::__1::unique_ptr<puerts::DefaultJSModuleLoader, std::__1::default_delete<puerts::DefaultJSModuleLoader>>&&, std::__1::shared_ptr<puerts::FDefaultLogger>&&, int&&) Address = 0x4a9299e2c [/Users/Shared/Epic Games/UE_5.4/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h, line 414] [in UnrealEditor-LyraGame-4663.dylib]
UMSCLevelCore::InitJS() Address = 0x4a9296cc4 [/Users/carter/Documents/Unreal Projects/LyraStarterGame3/Source/LyraGame/MSC/MSCLevelCore.cpp, line 91] [in UnrealEditor-LyraGame-4663.dylib]
UMSCLevelCore::ServerSetupMSCScript_Implementation() Address = 0x4a9298620 [/Users/carter/Documents/Unreal Projects/LyraStarterGame3/Source/LyraGame/MSC/MSCLevelCore.cpp, line 284] [in UnrealEditor-LyraGame-4663.dylib]
UFunction::Invoke(UObject*, FFrame&, void*) Address = 0x106ff241c (filename not found) [in UnrealEditor-CoreUObject.dylib]
UObject::ProcessEvent(UFunction*, void*) Address = 0x10739e5fc (filename not found) [in UnrealEditor-CoreUObject.dylib]
TBaseUObjectMethodDelegateInstance<false, UMSCLevelCore, void (ULyraExperienceDefinition const*), FDefaultDelegateUserPolicy>::ExecuteIfSafe(ULyraExperienceDefinition const*) const Address = 0x4a929c394 [/Users/Shared/Epic Games/UE_5.4/Engine/Source/Runtime/Core/Public/Delegates/DelegateInstancesImpl.h, line 654] [in UnrealEditor-LyraGame-4663.dylib]
void TMulticastDelegateBase<FDefaultDelegateUserPolicy>::Broadcast<IBaseDelegateInstance<void (ULyraExperienceDefinition const*), FDefaultDelegateUserPolicy>, ULyraExperienceDefinition const*>(ULyraExperienceDefinition const*) const Address = 0x4a920e250 [/Users/Shared/Epic Games/UE_5.4/Engine/Source/Runtime/Core/Public/Delegates/MulticastDelegateBase.h, line 254] [in UnrealEditor-LyraGame-4663.dylib]
ULyraExperienceManagerComponent::OnExperienceFullLoadCompleted() Address = 0x4a920ada8 [/Users/carter/Documents/Unreal Projects/LyraStarterGame3/Source/LyraGame/GameModes/LyraExperienceManagerComponent.cpp, line 348] [in UnrealEditor-LyraGame-4663.dylib]
TBaseUObjectMethodDelegateInstance<false, ULyraExperienceManagerComponent, void (UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy>::ExecuteIfSafe(UE::GameFeatures::FResult const&) const Address = 0x4a920dc98 [/Users/Shared/Epic Games/UE_5.4/Engine/Source/Runtime/Core/Public/Delegates/DelegateInstancesImpl.h, line 654] [in UnrealEditor-LyraGame-4663.dylib]
UGameFeaturesSubsystem::ChangeGameFeatureTargetStateComplete(UGameFeaturePluginStateMachine*, UE::GameFeatures::FResult const&, TDelegate<void (UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy>) Address = 0x3ff6503cc (filename not found) [in UnrealEditor-GameFeatures.dylib]
TBaseUObjectMethodDelegateInstance<false, UGameFeaturesSubsystem, void (UGameFeaturePluginStateMachine*, UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy, TDelegate<void (UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy>>::ExecuteIfSafe(UGameFeaturePluginStateMachine*, UE::GameFeatures::FResult const&) const Address = 0x3ff6b5a2c (filename not found) [in UnrealEditor-GameFeatures.dylib]
void TMulticastDelegateBase<FDefaultDelegateUserPolicy>::Broadcast<IBaseDelegateInstance<void (UGameFeaturePluginStateMachine*, UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy>, UGameFeaturePluginStateMachine*, UE::GameFeatures::FResult const&>(UGameFeaturePluginStateMachine*, UE::GameFeatures::FResult const&) const Address = 0x3ff667b80 (filename not found) [in UnrealEditor-GameFeatures.dylib]
UGameFeaturePluginStateMachine::UpdateStateMachine()::$_51::operator()(UE::GameFeatures::FResult const&, unsigned char, unsigned char) const Address = 0x3ff63a860 (filename not found) [in UnrealEditor-GameFeatures.dylib]
UGameFeaturePluginStateMachine::UpdateStateMachine() Address = 0x3ff638ca4 (filename not found) [in UnrealEditor-GameFeatures.dylib]
UGameFeaturePluginStateMachine::SetDestination(FGameFeaturePluginStateRange, TDelegate<void (UGameFeaturePluginStateMachine*, UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy>, FDelegateHandle*) Address = 0x3ff639988 (filename not found) [in UnrealEditor-GameFeatures.dylib]
UGameFeaturesSubsystem::ChangeGameFeatureDestination(UGameFeaturePluginStateMachine*, FGameFeatureProtocolOptions const&, FGameFeaturePluginStateRange const&, TDelegate<void (UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy>) Address = 0x3ff6480cc (filename not found) [in UnrealEditor-GameFeatures.dylib]
UGameFeaturesSubsystem::ChangeGameFeatureTargetState(FString const&, FGameFeatureProtocolOptions const&, EGameFeatureTargetState, TDelegate<void (UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy> const&) Address = 0x3ff6493bc (filename not found) [in UnrealEditor-GameFeatures.dylib]
UGameFeaturesSubsystem::LoadAndActivateGameFeaturePlugin(FString const&, TDelegate<void (UE::GameFeatures::FResult const&), FDefaultDelegateUserPolicy> const&) Address = 0x3ff63f768 (filename not found) [in UnrealEditor-GameFeatures.dylib]
ULyraExperienceManagerComponent::OnExperienceLoadComplete() Address = 0x4a920a584 [/Users/carter/Documents/Unreal Projects/LyraStarterGame3/Source/LyraGame/GameModes/LyraExperienceManagerComponent.cpp, line 269] [in UnrealEditor-LyraGame-4663.dylib]
TBaseUObjectMethodDelegateInstance<false, ULyraExperienceManagerComponent, void (), FDefaultDelegateUserPolicy>::ExecuteIfSafe() const Address = 0x4a920d3a0 [/Users/Shared/Epic Games/UE_5.4/Engine/Source/Runtime/Core/Public/Delegates/DelegateInstancesImpl.h, line 654] [in UnrealEditor-LyraGame-4663.dylib]
FStreamableDelegateDelayHelper::Tick(float) Address = 0x11c8d73e8 (filename not found) [in UnrealEditor-Engine.dylib]
FTickableGameObject::TickObjects(UWorld*, int, bool, float) Address = 0x11ca10738 (filename not found) [in UnrealEditor-Engine.dylib]
UEditorEngine::Tick(float, bool) Address = 0x1149cfbe4 (filename not found) [in UnrealEditor-UnrealEd.dylib]
UUnrealEdEngine::Tick(float, bool) Address = 0x115800f60 (filename not found) [in UnrealEditor-UnrealEd.dylib]
ULyraEditorEngine::Tick(float, bool) Address = 0x3867abd50 (filename not found) [in UnrealEditor-LyraEditor-5465.dylib]
FEngineLoop::Tick() Address = 0x104b8636c (filename not found) [in UnrealEditor]
GuardedMain(char16_t const*) Address = 0x104b933c4 (filename not found) [in UnrealEditor]
-[UEAppDelegate runGameThread:] Address = 0x104bad364 (filename not found) [in UnrealEditor]
-[FCocoaGameThread main] Address = 0x108c009c4 (filename not found) [in UnrealEditor-Core.dylib]
Unknown() Address = 0x1932c9f80 (filename not found) [in Foundation]
Unknown() Address = 0x1920bef94 (filename not found) [in libsystem_pthread.dylib]
Unknown() Address = 0x1920b9d34 (filename not found) [in libsystem_pthread.dylib]

问题重现 | Bug reproduce

问题好奇怪，我第一次按start在编辑器没有问题，但如果我stop，HotReload/Compile，下次启动JsEnv就抱着个错误。

Startup Code:

void UMSCLevelCore::InitJS()
{
	if (isScriptLoaded)
	{
		UE_LOG(LogLyraExperience, Log, TEXT("Script already loaded"));
		return;
	}
	isScriptLoaded = true;
	UE_LOG(LogLyraExperience, Log, TEXT("Loading Script..."));

	// JsEnv = MakeShared<puerts::FJsEnv>(TEXT("JavaScript"));
	JsEnv = MakeShared<puerts::FJsEnv>(std::make_unique<puerts::DefaultJSModuleLoader>(TEXT("JavaScript")), std::make_shared<puerts::FDefaultLogger>(), 8089);

	TArray<TPair<FString, UObject *>> Arguments;
	Arguments.Add(TPair<FString, UObject *>(TEXT("LevelCore"), this));
	JsEnv->Start("QuickStart", Arguments);
	isRunning = true;
}

TearDown Code:

void UMSCLevelCore::MSCTearDown()
{
	UE_LOG(LogLyraExperience, Log, TEXT("UMSCLevelCore::MSCTearDown"));
	if (isRunning)
	{
		isRunning = false;
		UE_LOG(LogLyraExperience, Log, TEXT("UMSCLevelCore::MSCTearDown real"));
		UGameplayMessageSubsystem &MessageSubsystem = UGameplayMessageSubsystem::Get(this);

		for (FGameplayMessageListenerHandle &Handle : ListenerHandles)
		{
			MessageSubsystem.UnregisterListener(Handle);
		}
		ListenerHandles.Empty();

		// GameMode->OnGameModePlayerInitialized.Remove(&ThisClass::OnPlayerConnected);
		FGameModeEvents::GameModeLogoutEvent.RemoveAll(this);

		if (isScriptLoaded)
		{
			JsEnv.Reset();
			isScriptLoaded = false;
		}
	}
}
void UMSCLevelCore::EndPlay(const EEndPlayReason::Type EndPlayReason)
{
	Super::EndPlay(EndPlayReason);
	UE_LOG(LogLyraExperience, Log, TEXT("EndPlay"));

	// isRunning

	MSCTearDown();
}

[chexiongsheng]

v8用了静态变量。应该是ue的c++ HotReload没有把静态变量的状态也迁移过去导致的。
puerts是通过反射去修改bCanHotReload变量禁用HotReload：https://github.com/Tencent/puerts/blob/master/unreal/Puerts/Source/JsEnv/JsEnv.Build.cs#L97
这之前ue各版本都工作的好好的，可能是5.4.4失效了，你可以看看ubt代码，看看要怎么修改。