我是 Autofac 用户，现在面临一个非常头痛的问题。电子邮件 Alex 和 Travis 向我提出了这个问题，并得到了他们的回复，在这里，感谢他们的帮助。为了彻底检查这个问题，我接受了 Travis 的建议，并在此处发布了详细信息。
我的电子邮件：
我们在 mvc3 项目中使用 Autofac 2.6.3.862。
现在我们来到IIS死锁问题很严重，服务器经常死机，我们使用了Microsoft Debug Diagnostics Tool进行了分析（导致附上分析报告），初步怀疑是LifetimeScope中的一个锁
我已经阅读了您的文章，但是对于一些技术细节对我来说是模糊的。我们的大多数 Register() 组件都是 SingleInstance，所以当 Resolve() 时我不使用子生命周期范围，例如 using (var scope = Container.BeginLifetimeScope())
，不知道这是否是死锁的原因。
调试诊断分析报告
The following threads in
w3wp.exe__hg__PID__3904__Date__03_07_2013__Time_11_01_07AM__974__Manual Dump.dmp are waiting to enter a .NET Lock which thread 39 is currently holding
( 26 34 42 43 44 45 46 47 48 )
16.67% of threads blocked
======================================================================================
Detected possible blocking or leaked critical section at 0x0e758a00 owned by thread 26 in w3wp.exe__hg__PID__3904__Date__03_07_2013__Time_11_01_07AM__974__Manual Dump.dmp
Impact of this lock
1.85% of threads blocked
(Threads 39)
The following functions are trying to enter this critical section
clr!UnsafeEEEnterCriticalSection+1c
The following module(s) are involved with this critical section
C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
======================================================================================
Thread 26 - System ID 7628
Entry point 0x00000000
Create time 2013/3/7 10:44:15
Time spent in user mode 0 Days 00:00:00.218
Time spent in kernel mode 0 Days 00:00:00.343
This thread is waiting to enter a .NET Lock which thread 39 is currently holding
.NET Call Stack
Function
System.Threading.Monitor.ReliableEnter(System.Object, Boolean ByRef)
System.Threading.Monitor.Enter(System.Object, Boolean ByRef)
Autofac.Core.Lifetime.LifetimeScope.ResolveComponent(Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Container.ResolveComponent(Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.ResolutionExtensions.TryResolveService(Autofac.IComponentContext, Autofac.Core.Service, System.Collections.Generic.IEnumerable`1, System.Object ByRef)
Autofac.ResolutionExtensions.ResolveService(Autofac.IComponentContext, Autofac.Core.Service, System.Collections.Generic.IEnumerable`1)
Autofac.ResolutionExtensions.Resolve[[System.__Canon, mscorlib]](Autofac.IComponentContext, System.Collections.Generic.IEnumerable`1)
Autofac.ResolutionExtensions.Resolve[[System.__Canon, mscorlib]](Autofac.IComponentContext)
Tunynet.DIContainer.Resolve[[System.__Canon, mscorlib]]()
Spacebuilder.Common.ProfileRepository..cctor()
Spacebuilder.Common.ProfileRepository..ctor()
Spacebuilder.Common.UserProfileService..ctor()
Spacebuilder.Common.User.get_Profile()
ASP._Page_Themes_Channel_Default_Views_FindUser__QuickSearch_cshtml.Execute()
System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
Tunynet.UI.ThemedWebViewPage.ExecutePageHierarchy()
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(System.Web.WebPages.WebPageContext, System.IO.TextWriter, System.Web.WebPages.WebPageRenderingBase)
Tunynet.UI.ThemedRazorView.RenderView(System.Web.Mvc.ViewContext, System.IO.TextWriter, System.Object)
System.Web.Mvc.BuildManagerCompiledView.Render(System.Web.Mvc.ViewContext, System.IO.TextWriter)
System.Web.Mvc.ViewResultBase.ExecuteResult(System.Web.Mvc.ControllerContext)
System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(System.Web.Mvc.ControllerContext, System.Web.Mvc.ActionResult)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c.b__19()
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(System.Web.Mvc.IResultFilter, System.Web.Mvc.ResultExecutingContext, System.Func`1)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.b__1b()
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(System.Web.Mvc.IResultFilter, System.Web.Mvc.ResultExecutingContext, System.Func`1)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.b__1b()
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(System.Web.Mvc.IResultFilter, System.Web.Mvc.ResultExecutingContext, System.Func`1)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.b__1b()
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(System.Web.Mvc.IResultFilter, System.Web.Mvc.ResultExecutingContext, System.Func`1)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.b__1b()
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(System.Web.Mvc.ControllerContext, System.Collections.Generic.IList`1, System.Web.Mvc.ActionResult)
System.Web.Mvc.ControllerActionInvoker.InvokeAction(System.Web.Mvc.ControllerContext, System.String)
System.Web.Mvc.Controller.ExecuteCore()
System.Web.Mvc.ControllerBase.Execute(System.Web.Routing.RequestContext)
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(System.Web.Routing.RequestContext)
System.Web.Mvc.MvcHandler+<>c__DisplayClass6+<>c__DisplayClassb.b__5()
System.Web.Mvc.Async.AsyncResultWrapper+<>c__DisplayClass1.b__0()
System.Web.Mvc.Async.AsyncResultWrapper+<>c__DisplayClass8`1[[System.Web.Mvc.Async.AsyncVoid, System.Web.Mvc]].b__7(System.IAsyncResult)
System.Web.Mvc.Async.AsyncResultWrapper+WrappedAsyncResult`1[[System.Web.Mvc.Async.AsyncVoid, System.Web.Mvc]].End()
System.Web.Mvc.MvcHandler+<>c__DisplayClasse.b__d()
System.Web.Mvc.SecurityUtil.b__0(System.Action)
System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(System.Action)
System.Web.Mvc.MvcHandler.EndProcessRequest(System.IAsyncResult)
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(System.IAsyncResult)
System.Web.HttpApplication+CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
System.Web.HttpApplication.ExecuteStep(IExecutionStep, Boolean ByRef)
System.Web.HttpApplication+PipelineStepManager.ResumeSteps(System.Exception)
System.Web.HttpApplication.BeginProcessRequestNotification(System.Web.HttpContext, System.AsyncCallback)
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(System.Web.Hosting.IIS7WorkerRequest, System.Web.HttpContext)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, IntPtr, IntPtr, Int32)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, IntPtr, IntPtr, Int32)
DomainNeutralILStubClass.IL_STUB_PInvoke(IntPtr, System.Web.RequestNotificationStatus ByRef)
System.Web.Hosting.UnsafeIISMethods.MgdIndicateCompletion(IntPtr, System.Web.RequestNotificationStatus ByRef)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, IntPtr, IntPtr, Int32)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, IntPtr, IntPtr, Int32)
Full Call Stack
Function Source
ntdll!KiFastSystemCallRet
ntdll!NtWaitForMultipleObjects+c
KERNELBASE!WaitForMultipleObjectsEx+100
kernel32!WaitForMultipleObjectsExImplementation+e0
clr!WaitForMultipleObjectsEx_SO_TOLERANT+56
clr!Thread::DoAppropriateAptStateWait+4d
clr!Thread::DoAppropriateWaitWorker+17d
clr!Thread::DoAppropriateWait+60
clr!CLREvent::WaitEx+106
clr!CLREvent::Wait+19
clr!AwareLock::EnterEpilogHelper+a8
clr!AwareLock::EnterEpilog+42
clr!AwareLock::Enter+5f
clr!AwareLock::Contention+228
clr!JITutil_MonReliableContention+e8
System.Threading.Monitor.Enter(System.Object, Boolean ByRef)
clr!CallDescrWorker+33
clr!CallDescrWorkerWithHandler+8e
clr!DispatchCallBody+20
clr!DispatchCallDebuggerWrapper+75
clr!DispatchCallNoEH+53
clr!MethodTable::RunClassInitEx+f1
clr!MethodTable::DoRunClassInitThrowing+53e
clr!MethodDesc::DoPrestub+f1
clr!PreStubWorker+12c
0x00f80842
clr!MethodTable::GetRestoredSlot+2a
clr!MethodDesc::GetMethodEntryPoint+4e
clr!MethodDesc::DoPrestub+51d
clr!PreStubWorker+15d
0x00f80842
System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
System.Collections.Generic.Stack`1[[System.__Canon, mscorlib]].Push(System.__Canon)
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(System.Web.WebPages.WebPageContext, System.IO.TextWriter, System.Web.WebPages.WebPageRenderingBase)
System.RuntimeType+ActivatorCacheEntry..ctor(System.Type, System.RuntimeMethodHandleInternal, Boolean)
System.Web.Mvc.BuildManagerCompiledView.Render(System.Web.Mvc.ViewContext, System.IO.TextWriter)
System.Web.Mvc.ViewResultBase.ExecuteResult(System.Web.Mvc.ControllerContext)
System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(System.Web.Mvc.ControllerContext, System.Web.Mvc.ActionResult)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19()
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(System.Web.Mvc.IResultFilter, System.Web.Mvc.ResultExecutingContext, System.Func`1<System.Web.Mvc.ResultExecutedContext>)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.<InvokeActionResultWithFilters>b__1b()
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.<InvokeActionResultWithFilters>b__1b()
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.<InvokeActionResultWithFilters>b__1b()
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass1c+<>c__DisplayClass1e.<InvokeActionResultWithFilters>b__1b()
System.Web.Mvc.ControllerActionInvoker.InvokeAction(System.Web.Mvc.ControllerContext, System.String)
System.Web.Mvc.Controller.ExecuteCore()
System.Web.Mvc.ControllerBase.Execute(System.Web.Routing.RequestContext)
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(System.Web.Routing.RequestContext)
System.Web.Mvc.MvcHandler+<>c__DisplayClass6+<>c__DisplayClassb.<BeginProcessRequest>b__5()
System.Web.Mvc.Async.AsyncResultWrapper+<>c__DisplayClass1.<MakeVoidDelegate>b__0()
System.Web.Mvc.MvcHandler+<>c__DisplayClasse.<EndProcessRequest>b__d()
System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(System.Action)
System.Web.Mvc.MvcHandler.EndProcessRequest(System.IAsyncResult)
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(System.IAsyncResult)
System.Web.HttpApplication+CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
System.Web.HttpApplication.ExecuteStep(IExecutionStep, Boolean ByRef)
System.Web.HttpApplication+PipelineStepManager.ResumeSteps(System.Exception)
System.Web.HttpApplication.BeginProcessRequestNotification(System.Web.HttpContext, System.AsyncCallback)
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(System.Web.Hosting.IIS7WorkerRequest, System.Web.HttpContext)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, IntPtr, IntPtr, Int32)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, IntPtr, IntPtr, Int32)
webengine4!W3_MGD_HANDLER::ProcessNotification+5b
webengine4!W3_MGD_HANDLER::DoWork+250
webengine4!RequestDoWork+2da
webengine4!CMgdEngHttpModule::OnExecuteRequestHandler+1a
iiscore!NOTIFICATION_CONTEXT::RequestDoWork+128
iiscore!NOTIFICATION_CONTEXT::CallModulesInternal+305
iiscore!NOTIFICATION_CONTEXT::CallModules+28
iiscore!W3_CONTEXT::DoStateRequestExecuteHandler+36
iiscore!W3_CONTEXT::DoWork+d7
iiscore!W3_MAIN_CONTEXT::ContinueNotificationLoop+1f
iiscore!W3_MAIN_CONTEXT::ProcessIndicateCompletion+1f
iiscore!W3_CONTEXT::IndicateCompletion+75
webengine4!W3_MGD_HANDLER::IndicateCompletion+3d
webengine4!MgdIndicateCompletion+24
DomainNeutralILStubClass.IL_STUB_PInvoke(IntPtr, System.Web.RequestNotificationStatus ByRef)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, IntPtr, IntPtr, Int32)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, IntPtr, IntPtr, Int32)
clr!UM2MThunk_WrapperHelper+10
clr!UM2MThunk_Wrapper+8c
clr!Thread::DoADCallBack+f0
clr!UM2MDoADCallBack+c0
0x00f98c20
webengine4!W3_MGD_HANDLER::ProcessNotification+5b
webengine4!ProcessNotificationCallback+36
clr!UnManagedPerAppDomainTPCount::DispatchWorkItem+195
clr!ThreadpoolMgr::NewWorkerThreadStart+20b
clr!ThreadpoolMgr::WorkerThreadStart+3d1
clr!Thread::intermediateThreadProc+4b
kernel32!BaseThreadInitThunk+e
ntdll!__RtlUserThreadStart+70
ntdll!_RtlUserThreadStart+1b
=========================================================================
Thread 39 - System ID 4176
Entry point 0x00000000
Create time 2013/3/7 10:44:21
Time spent in user mode 0 Days 00:00:00.140
Time spent in kernel mode 0 Days 00:00:00.109
This thread is not fully resolved and may or may not be a problem. Further analysis of these threads may be required.
.NET Call Stack
Function
Spacebuilder.Common.ProfileRepository..ctor()
Spacebuilder.Common.UserProfileService..ctor()
Spacebuilder.Common.UserSearcher..ctor(System.String, System.String, Boolean, Int32)
Spacebuilder.Environments.Starter.b__54(Autofac.IComponentContext)
Autofac.RegistrationExtensions+<>c__DisplayClass10`1[[System.__Canon, mscorlib]].b__f(Autofac.IComponentContext, System.Collections.Generic.IEnumerable`1)
Autofac.Builder.RegistrationBuilder+<>c__DisplayClass1`1[[System.__Canon, mscorlib]].b__0(Autofac.IComponentContext, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Activators.Delegate.DelegateActivator.ActivateInstance(Autofac.IComponentContext, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Resolving.InstanceLookup.Activate(System.Collections.Generic.IEnumerable`1)
Autofac.Core.Resolving.InstanceLookup.b__0()
Autofac.Core.Lifetime.LifetimeScope.GetOrCreateAndShare(System.Guid, System.Func`1)
Autofac.Core.Resolving.InstanceLookup.Execute()
Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(Autofac.Core.ISharingLifetimeScope, Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Resolving.InstanceLookup.ResolveComponent(Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.Features.Collections.CollectionRegistrationSource+<>c__DisplayClass4+<>c__DisplayClass6.b__1(Autofac.Core.IComponentRegistration)
System.Linq.Enumerable+WhereSelectArrayIterator`2[[System.__Canon, mscorlib],[System.__Canon, mscorlib]].MoveNext()
System.Linq.Buffer`1[[System.__Canon, mscorlib]]..ctor(System.Collections.Generic.IEnumerable`1)
System.Linq.Enumerable.ToArray[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable`1)
Autofac.Features.Collections.CollectionRegistrationSource+<>c__DisplayClass4.b__0(Autofac.IComponentContext, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Activators.Delegate.DelegateActivator.ActivateInstance(Autofac.IComponentContext, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Resolving.InstanceLookup.Activate(System.Collections.Generic.IEnumerable`1)
Autofac.Core.Resolving.InstanceLookup.Execute()
Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(Autofac.Core.ISharingLifetimeScope, Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Resolving.ResolveOperation.Execute(Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Lifetime.LifetimeScope.ResolveComponent(Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.Core.Container.ResolveComponent(Autofac.Core.IComponentRegistration, System.Collections.Generic.IEnumerable`1)
Autofac.ResolutionExtensions.TryResolveService(Autofac.IComponentContext, Autofac.Core.Service, System.Collections.Generic.IEnumerable`1, System.Object ByRef)
Autofac.ResolutionExtensions.ResolveService(Autofac.IComponentContext, Autofac.Core.Service, System.Collections.Generic.IEnumerable`1)
Autofac.ResolutionExtensions.Resolve[[System.__Canon, mscorlib]](Autofac.IComponentContext, System.Collections.Generic.IEnumerable`1)
Autofac.ResolutionExtensions.Resolve[[System.__Canon, mscorlib]](Autofac.IComponentContext)
Tunynet.DIContainer.Resolve[[System.__Canon, mscorlib]]()
Spacebuilder.Search.SearcherFactory.GetSearcher(System.String)
Spacebuilder.Common.FindUserController._InterestedWithAll(Int32, Int32, System.String)
DynamicClass.lambda_method(System.Runtime.CompilerServices.Closure, System.Web.Mvc.ControllerBase, System.Object[])
System.Web.Mvc.ActionMethodDispatcher.Execute(System.Web.Mvc.ControllerBase, System.Object[])
System.Web.Mvc.ReflectedActionDescriptor.Execute(System.Web.Mvc.ControllerContext, System.Collections.Generic.IDictionary`2)
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(System.Web.Mvc.ControllerContext, System.Web.Mvc.ActionDescriptor, System.Collections.Generic.IDictionary`2)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass15.b__12()
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(System.Web.Mvc.IActionFilter, System.Web.Mvc.ActionExecutingContext, System.Func`1)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass15+<>c__DisplayClass17.b__14()
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(System.Web.Mvc.IActionFilter, System.Web.Mvc.ActionExecutingContext, System.Func`1)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass15+<>c__DisplayClass17.b__14()
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(System.Web.Mvc.IActionFilter, System.Web.Mvc.ActionExecutingContext, System.Func`1)
System.Web.Mvc.ControllerActionInvoker+<>c__DisplayClass15+<>c__DisplayClass17.b__14()
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(System.Web.Mvc.ControllerContext, System.Collections.Generic.IList`1, System.Web.Mvc.ActionDescriptor, System.Collections.Generic.IDictionary`2)
System.Web.Mvc.ControllerActionInvoker.InvokeAction(System.Web.Mvc.ControllerContext, System.String)
System.Web.Mvc.Controller.ExecuteCore()
System.Web.Mvc.ControllerBase.Execute(System.Web.Routing.RequestContext)
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(System.Web.Routing.RequestContext)
System.Web.Mvc.MvcHandler+<>c__DisplayClass6+<>c__DisplayClassb.b__5()
System.Web.Mvc.Async.AsyncResultWrapper+<>c__DisplayClass1.b__0()
System.Web.Mvc.Async.AsyncResultWrapper+<>c__DisplayClass8`1[[System.Web.Mvc.Async.AsyncVoid, System.Web.Mvc]].b__7(System.IAsyncResult)
System.Web.Mvc.Async.AsyncResultWrapper+WrappedAsyncResult`1[[System.Web.Mvc.Async.AsyncVoid, System.Web.Mvc]].End()
System.Web.Mvc.MvcHandler+<>c__DisplayClasse.b__d()
System.Web.Mvc.SecurityUtil.b__0(System.Action)
System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(System.Action)
System.Web.Mvc.MvcHandler.EndProcessRequest(System.IAsyncResult)
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(System.IAsyncResult)
System.Web.HttpApplication+CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
System.Web.HttpApplication.ExecuteStep(IExecutionStep, Boolean ByRef)
System.Web.HttpApplication+PipelineStepManager.ResumeSteps(System.Exception)
System.Web.HttpApplication.BeginProcessRequestNotification(System.Web.HttpContext, System.AsyncCallback)
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(System.Web.Hosting.IIS7WorkerRequest, System.Web.HttpContext)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, IntPtr, IntPtr, Int32)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, IntPtr, IntPtr, Int32)
DomainNeutralILStubClass.IL_STUB_PInvoke(IntPtr, System.Web.RequestNotificationStatus ByRef)
System.Web.Hosting.UnsafeIISMethods.MgdIndicateCompletion(IntPtr, System.Web.RequestNotificationStatus ByRef)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, IntPtr, IntPtr, Int32)
System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, IntPtr, IntPtr, Int32)
Full Call Stack
Function Source
ntdll!KiFastSystemCallRet
ntdll!NtWaitForSingleObject+c
ntdll!RtlpWaitOnCriticalSection+13e
ntdll!RtlEnterCriticalSection+150
clr!UnsafeEEEnterCriticalSection+1c
clr!CrstBase::Enter+1ad
clr!ListLockEntry::FinishDeadlockAwareEnter+25
clr!ListLockEntry::LockHolder::DeadlockAwareAcquire+28
clr!MethodTable::DoRunClassInitThrowing+4c2
clr!MethodDesc::DoPrestub+f1
clr!PreStubWorker+12c
0x00f80842
clr!PreStubWorker+165
System.Linq.Enumerable+WhereSelectArrayIterator`2[[System.__Canon, mscorlib],[System.__Canon, mscorlib]].MoveNext()
System.Linq.Buffer`1[[System.__Canon, mscorlib]]..ctor(System.Collections.Generic.IEnumerable`1<System.__Canon>)
System.Linq.Enumerable.ToArray[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable`1<System.__Canon>)
System.Collections.Generic.Stack`1[[System.__Canon, mscorlib]].Push(System.__Canon)
clr!JIT_Stelem_Ref+25
System.Collections.Generic.Stack`1[[System.__Canon, mscorlib]].Push(System.__Canon)
亚历克斯 回复：
这听起来确实很棘手。DIContainer 类在做什么，是否有任何组件注册为 InstancePerHttpRequest 或 InstancePerLifetimeScope？后台似乎也有一些 Quartz 作业，它们是如何与容器交互的？
特拉维斯 回复：
快速查看堆栈跟踪表明您可能在 Spacebuilder.Environments.Starter、Spacebuilder.Common.UserSearcher.ctor、Spacebuilder.UserProfileService.ctor 或 Spacebuilder.Common.ProfileRepository 中发生了一些长时间运行的操作或锁定。我看到有趣的是，在 RESOLVE 操作期间，当任何组件得到 RESOLVED 时，都会有一个内部 REGISTER 正在进行。没有看到代码，我无法告诉你那里发生了什么，但那个线程 - #39 - 那是我要看的东西。
看起来……正在调用控制器操作 有某种 lambda 在闭包上运行（DynamicClass.lambda_method） - 管道中自定义的东西。SearcherFactory.GetSearcher 手动尝试解决 smoething。在 GetSearcher 的解析过程中，有些东西要求收集 - 比如服务的 IEnumerable。构造函数参数？这就是它变得奇怪的地方：在解决该 IEnumerable 时，正在创建一个新的生命周期范围，并且似乎正在其中注册一些东西？LifetimeScope.ResolveComponent 调用确实会执行锁定以确保解决方案是线程安全的。您遇到死锁的事实意味着两个不同的线程正在尝试同时解决相同的生命周期范围（容器？），在 MVC 中，是要避免的事情 - 例如，如果您只在 HttpRequest 生命周期范围之外解析，您可能不会遇到这种情况，因为您一次只能在一个线程上使用它。或者，您可能会在应用程序中传递生命周期范围以进行服务定位，这也可能是一个危险信号。
有一个关于并发的 wiki 页面也可以给你一些指示：https ://code.google.com/p/autofac/wiki/Concurrency
如果这不能让你朝着你需要的方向前进，我建议你在讨论论坛上发帖，因为，我真的不能及时提供个人帮助。这会引起其他人的注意，并可能更快地为您提供帮助。您需要包括： 问题描述（就像这封电子邮件中的内容），但更详细地说明您期望发生的事情（例如，您正在访问执行 blah blah blah 的控制器操作）。阻塞线程的堆栈跟踪。事情被阻止的代码：您最初的 ContainerBuilder 注册，以显示事情是如何被注册的。那些构造函数和正在挂起的东西中有什么。该信息将帮助人们更快地根除问题。那'
我的补充问题详细信息：
服务器经常不规律的挂起，浏览器会突然停止响应，我们使用iisreset命令重启服务器。我不确定当时是否调用了控制器或触发了某些 Quartz 任务。
在 Application_Start() 中，我们使用 ContainerBuilder.Register() 在同一根生命周期范围内注册许多组件。并且这些组件可以相互调用。
他们大多数注册为 SingleInstance，例如：
containerBuilder.Register(c => new DefaultCacheService(new MemcachedCache())).As<ICacheService>().SingleInstance();
containerBuilder.Register(c => new QuartzTaskScheduler()).As<ITaskScheduler>().SingleInstance();
containerBuilder.Register(c => new UserService()).As<IUserService>().SingleInstance();
containerBuilder.Register(c => new UserSearcher("~/App_Data/IndexFiles/User")).As<ISearcher>().SingleInstance();
containerBuilder.Register(c => new TagSearcher("~/App_Data/IndexFiles/Tag")).As<ISearcher>().SingleInstance();
只有少数注册为InstancePerHttpRequest，这些组件的初始化与每个请求相关。如：
containerBuilder.Register(c => new FormsAuthenticationService()).As<IAuthenticationService>().InstancePerHttpRequest();
我们提供了一个类（DIContainer），其中包含一些用于组件解析的简单静态方法。在解析组件时调用静态方法，例如在某些 Controller、Service、Repository(DAO) 或 Quartz 任务中。
IContainer container = containerBuilder.Build();
DIContainer.RegisterContainer(container);
DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
public class DIContainer
{
private static IContainer _container;
public static void RegisterContainer(IContainer container)
{
_container = container;
}
public static TService Resolve<TService>()
{
return _container.Resolve<TService>();
}
......
}
我们使用Lucene.Net做全文搜索服务，每个ISearcher对应一个搜索类型和一个索引目录。需要时在 SearcherFactory.GetSearcher() 中解析 ISearcher。
public static ISearcher GetSearcher(string IndexPath)
{
return DIContainer.Resolve<IEnumerable<ISearcher>>().Where(s => s.IndexPath.Equals(IndexPath, StringComparison.InvariantCultureIgnoreCase)).FirstOrDefault();
}
就是这样，但我仍然无法弄清楚根本原因。希望得到您的帮助。