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TechTip: ContextSwitchDeadlock in Visual Studio 2005
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IdeaBlade View Drop Down
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Joined: 30-May-2007
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    Posted: 09-Jul-2007 at 12:23pm
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View%20all%20Tech%20Tips ContextSwitchDeadlock in Visual Studio 2005

Anyone who has been debugging within Visual Studio for any length of time has probably encountered the following message.

 

This is invariably very frustrating because it usually happens when you are deep in a debug trace and in order to continue debugging you need to restart the entire debug session. This is not always a simple process. More annoying is the fact that the error message is anything but helpful in determining what it is that you actually did wrong.

In fact, you didn’t do anything wrong. Visual Studio was just trying to help.

The following link describes the problem in some detail.

 
http://msdn2.microsoft.com/en-us/library/ms172233.aspx

There are several approaches that we have found to work around the problem. One simple but fairly severe approach is to execute a .reg file with the following contents.

 
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework]
"MDA"="0"

Another alternative is to go the menu in Visual Studio and uncheck the ContextSwitchDeadlock item.

Hopefully this will make debugging a slightly less painful experience.

 
Debug -> Exceptions -> Managed Debug Assistants
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