"Managed Debugging Assistant 'LoaderLock' has detected a problem in - microsoft.public.dotnet.framework.clr

Message from discussion "Managed Debugging Assistant 'LoaderLock' has detected a problem in

Greg Young

View profile

More options 5 Jun 2006, 11:18

Newsgroups: microsoft.public.dotnet.framework.clr

From: "Greg Young" <druckdruckREMOVEgo...@hotmail.com>

Date: Mon, 5 Jun 2006 06:18:54 -0400

Local: Mon 5 Jun 2006 11:18

Subject: Re: "Managed Debugging Assistant 'LoaderLock' has detected a problem in

  Reply to author
  |
  Forward | Print | View thread
  | Show original
  | Report this message | Find messages by this author
  

Problem 1: Are you using any other dlls? Basically it is saying that the
TekSpyHook DLL is accessing another DLL in its DLLMain which is a big no no.
Is this your own DLL or from somewhere else?

Problem 2: You can only access controls on the thread that they were created
on. You should be using Invoke/BeginInvoke in order to marshal operations on
controls back to the main thread. If you do a google on VB.NET control
invoke (or begininvoke) you can find a ton of articles .. here is one from
msdn mag
http://msdn.microsoft.com/msdnmag/issues/04/05/BasicInstincts/default....
Basically in 2.0 its alerting you that you have a threading problem where as
it did not in 1.x.

Cheers,

Greg Young
MVP - C#
http://geekswithblogs.net/gyoung

<mo...@tek.com> wrote in message

news:1149489172.672028.192690@i39g2000cwa.googlegroups.com...

> Hi all,

> I have ported my VB.Net project from VS2003 to VS2005. I am facing two
> issues while running my applications:
> Issue1:
> I am calling some managed dlls (developed in C#) from my Vb .net .
> Whne I
> debug the code,Iam getting the following Error message.

> "Managed Debugging Assistant 'LoaderLock' has detected a problem in
> 'F:\VBSource\bin\Debug\TekRobo.exe'.
> Additional Information: DLL 'F:\VBSource\bin\Debug\Tekspyhook.dll' is
> attempting managed execution inside OS Loader lock. Do not attempt to
> run managed code inside a DllMain or image initialization function
> since
> doing so can cause the application to hang."

> How to resolve the above error?

> i ssue2:

> I am calling mainform instance (static variable) from other VB .net
> modules
> from the same projects.In VS2003 ,I did not face any issues. But in
> VS2005 ,I
> am getting the following exception. P.s I am running the application
> under
> thread.

> "A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Windows.Forms.dll
> Additional information: Cross-thread operation not valid: Control
> 'StressTest' accessed from a thread other than the thread it was
> created on."

> it would be greatful ,if any one help me to resolve the above two
> issues.
> Thanks
> Mohan
> Was this

Reply to author Forward