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Asked: 2026-05-11T06:38:33+00:00

I have an application that is locking on the GUI thread, and I’ve used

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I have an application that is locking on the GUI thread, and I’ve used WinDbg, along with the ‘!clrstack’ command to get this stack trace, but I can’t figure out where the issue is. All of these methods look like framework methods, and none are mine. Any help would be much appreciated. I apologize for the long lines

OS Thread Id: 0x724 (0) ESP       EIP      0012ec88 7c90e4f4 [HelperMethodFrame_1OBJ: 0012ec88] System.Threading.WaitHandle.WaitOneNative(Microsoft.Win32.SafeHandles.SafeWaitHandle, UInt32, Boolean, Boolean) 0012ed34 792b687f System.Threading.WaitHandle.WaitOne(Int64, Boolean) 0012ed50 792b6835 System.Threading.WaitHandle.WaitOne(Int32, Boolean) 0012ed64 7b6f192f System.Windows.Forms.Control.WaitForWaitHandle(System.Threading.WaitHandle) 0012ed78 7ba2d0bb System.Windows.Forms.Control.MarshaledInvoke(System.Windows.Forms.Control, System.Delegate, System.Object[], Boolean) 0012ee18 7b6f328c System.Windows.Forms.Control.Invoke(System.Delegate, System.Object[]) 0012ee4c 7b920717 System.Windows.Forms.WindowsFormsSynchronizationContext.Send(System.Threading.SendOrPostCallback, System.Object) 0012ee64 7a924102 Microsoft.Win32.SystemEvents+SystemEventInvokeInfo.Invoke(Boolean, System.Object[]) 0012ee98 7a922833 Microsoft.Win32.SystemEvents.RaiseEvent(Boolean, System.Object, System.Object[]) 0012eee4 7a923d2f Microsoft.Win32.SystemEvents.OnUserPreferenceChanged(Int32, IntPtr, IntPtr) 0012ef04 7aa8f184 Microsoft.Win32.SystemEvents.WindowProc(IntPtr, Int32, IntPtr, IntPtr) 0012ef08 003620a4 [InlinedCallFrame: 0012ef08]  0012f0cc 7b1d8cce System.Windows.Forms.Application+ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32, Int32, Int32) 0012f168 7b1d8937 System.Windows.Forms.Application+ThreadContext.RunMessageLoopInner(Int32, System.Windows.Forms.ApplicationContext) 0012f1bc 7b1d8781 System.Windows.Forms.Application+ThreadContext.RunMessageLoop(Int32, System.Windows.Forms.ApplicationContext) 0012f1ec 7b195911 System.Windows.Forms.Application.Run(System.Windows.Forms.Form) 0012f200 00eb0ebb WinForms1.Program.Main() 0012f69c 79e71b4c [GCFrame: 0012f69c]
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1 Answer

  1. It looks like this code isn’t the true cause of the problem. See if one of these pages helps:

    Update: Fixed url to first page.

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