0x88980406 SyncFlush() ...Is there a workaround?
crash, wpf, wpf-4.0
Solution
In my case it turned out the application in question was already pressing up on memory limits of its specced hardware. Any time I added code that used a decent amount of memory this would crop up.
I ended up using a `MemoryFailPoint` mechanism when I implemented a feature that placed processing an image buffer on another thread.
https://learn.microsoft.com/en-us/dotnet/api/system.runtime.memoryfailpoint
First implementation did the trick but after many tries QA caused a OOM bomb. So I implemented a `MemoryFailPoint()` with `GC.Collect()` loop (hackish I know...but sometimes...get er done).
The main things I learned were:
- This is a really bad bug in WPF.
- You only have to worry about it if you have truly consumed an inordinate amount of memory.
Problem
I get this exception in my application. I have found links discussing it on the web but nothing indicating how to track it down and/or workaround it. Please do not reply with links from the internet. Please reply with strategies of tracking the source. Please reply with workarounds if you found them. ``` Source: PresentationCore Message: Exception from HRESULT: 0x88980406 Stack Trace: at System.Windows.Media.Composition.DUCE.Channel.SyncFlush() at System.Windows.Interop.HwndTarget.UpdateWindowSettings(Boolean enableRenderTarget, Nullable`1 channelSet) at System.Windows.Interop.HwndTarget.UpdateWindowPos(IntPtr lParam) at System.Windows.Interop.HwndTarget.HandleMessage(WindowMessage msg, IntPtr wparam, IntPtr lparam) at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler) ```