C# System.ComponentModel.Win32Exception (0x80004005): Not enough storage is available to process this command

问题

After running my application (.Net 4.5, 64-bit, WPF) a long time (one to two weeks) I encounter the following app crash:

Faulting application name: XY.exe, Version: 2.12.2.2, Time: 0x5bade142
Faulting module name: KERNELBASE.dll, Version: 6.1.7601.24150, Time: 0x5b0cbc65
Exception code: 0xe0434352
Fault offset: 0x000000000001a06d
Faulting process id: 0x8694
Faulting application start time: 0x01d457228a130410
Faulting application path: C:\Testsysteme\YY.exe
Faulting module path: C:\Windows\system32\KERNELBASE.dll
Report Id: dbfc630b-c61f-11e8-bc27-1866da0d15ef

Application: XY.exe
Frameworkversion: v4.0.30319
Description: The process was terminated due to an unhandled exception
Exception information: System.ComponentModel.Win32Exception
at MS.Win32.UnsafeNativeMethods.RegisterClassEx(WNDCLASSEX_D)
at MS.Win32.HwndWrapper..ctor(Int32, Int32, Int32, Int32, Int32, Int32, Int32, System.String, IntPtr, MS.Win32.HwndWrapperHook[])
at System.Windows.Interop.HwndSource.Initialize(System.Windows.Interop.HwndSourceParameters)
at System.Windows.Interop.HwndSource..ctor(System.Windows.Interop.HwndSourceParameters)
at System.Windows.Controls.Primitives.Popup+PopupSecurityHelper.BuildWindow(Int32, Int32, System.Windows.Media.Visual, Boolean, System.Windows.Interop.HwndSourceHook, System.Windows.AutoResizedEventHandler)
at System.Windows.Controls.Primitives.Popup.BuildWindow(System.Windows.Media.Visual)
at System.Windows.Controls.Primitives.Popup.CreateWindow(Boolean)
at System.Windows.Controls.Primitives.Popup.OnIsOpenChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
at System.Windows.Data.BindingOperations.SetBinding(System.Windows.DependencyObject, System.Windows.DependencyProperty, System.Windows.Data.BindingBase)
at System.Windows.Controls.Primitives.Popup.CreateRootPopup(System.Windows.Controls.Primitives.Popup, System.Windows.UIElement)
at System.Windows.Controls.ToolTip.OnIsOpenChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
at System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty, System.Object)
at System.Windows.Controls.PopupControlService.RaiseToolTipOpeningEvent()
at System.Windows.Threading.DispatcherTimer.FireTick(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
at System.Windows.Application.RunDispatcher(System.Object)
at System.Windows.Application.RunInternal(System.Windows.Window)
at XY.App.Main()

Logging of the unhandled exception additionally showed:

System.ComponentModel.Win32Exception (0x80004005): Not enough storage is available to process this command

I already found a link with a basic description of the problem connect.microsoft.com on web.archive.org and I downloaded an ran the AtomMonitor from JordiCorbilla/atom-table-monitor (GitHub). Indeed I found an increasing number of RWM Atoms created by my application over time (approx 4000 after some days). This fits to the exception message. All strings look like the following:

C1FE = HwndWrapper[XY.exe;;b68ce81a-d29f-414b-b63a-3b6979e33dd3]  --RWM

From the exception message I see that a 'Popup' is causing a RegisterClassEx from within the OnIsOpenChanged method.

However, opening and closing several popups in my application and monitoring the count of RWM atoms in parallel, I can't see any increase, that's why I can't find the exact source of the problem. Just after some time, when looking at the statistics again I can see that the count increased.

So my questions are:

Can a Popup be responsible for raising the count of RWM atoms? If yes, is this a bug? Why does it create a new Window and registers these atoms?
Do I use the Popup in a wrong way? Do I have to close/dispose/release something?
Is the Popup the problem at all?
What is the 'normal' number of RWM atoms an application creates or should not exceed, because as far as I know they can't be deleted anymore.

回答1:

After some research, I found the following: It was not related to popups or any "real" windows. Besides that, closing a popup releases the entry from the atom table.

The cause is: We create WriteableBitmaps on different tasks for image processing. Always when a new thread is used for this task (creating a WPF control), a Dispatcher gets created which in turn creates a HwndWrapper.

These resources are not released, if the dispatcher is not shutdown manually. Now we use the workaround from the following links:

GitHub: Win32Exception is thrown when WPF runs out of internal resources

SO: Why does LongRunning task (TPL) with JpegBitmapDecoder run out of resources?

Microsoft Connect: System.ComponentModel.Win32Exception (0x80004005): Not enough storage is available to process this command

SO: Resource leak when creating freezable objects in a background thread

来源：https://stackoverflow.com/questions/52969380/c-sharp-system-componentmodel-win32exception-0x80004005-not-enough-storage-is

标签

wpf

winapi

win32exception