Exception of unknown cause link check -> change number of threads

[SileC]

I was just checking some links. and I got an unhanded exception.

[VOD Check113.txt](https://github.com/Isayso/PlaylistEditorTV/files/5891170/VOD.Check113.txt)

Details in error;
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.Threading.SemaphoreFullException: Adding the specified count to the semaphore would cause it to exceed its maximum count.
at System.Threading.SemaphoreSlim.Release(Int32 releaseCount)
at PlaylistEditor.Form1.<>c__DisplayClass74_1.b__0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at PlaylistEditor.Form1.d__74.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at PlaylistEditor.Form1.<Button_check_Click>d__49.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c.b__6_0(Object state)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4300.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll

PlaylistEditorIPTV
Assembly Version: 1.6.2.0
Win32 Version: 1.6.2.0
CodeBase: file:///C:/Users/vasil/Downloads/PlaylistEditorIPTV.exe

System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4270.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

System
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4300.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll

System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4084.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

System.Data
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4270.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll

System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4300.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll

System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4084.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll

System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4190.0 built by: NET48REL1LAST_B
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

System.Numerics
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4084.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

[Isayso]

Can you describe what you have done? Or give me the file to reproduce the error?
Thanks

[SileC]

File was uploaded. Link is under the picture in my first post. It happened couple of times around line 940

[Isayso]

Thanks, all links get an error, but no exception as you described. So I cannot reproduce your error.
How many threads you use and what timeout do you use?

[SileC]

I just changed the timeout to 13 sec.

[Isayso]

ok, please change the thread number to 20

No link ist working here, thats okay?

[SileC]

Yes, I know they don't work. Tried again o same laptop with 13 sec an 3 threads, same error (every time). Changed to 20 threads, all ok. Went down to 4 threads and no more error, tried it at least 4 times (open close program and file). Tried on a desktop with 13sec and 3 threads and no error. I don't know what is different in the laptop but max 4 threads fixed the error.

[Isayso]

I don't get an error. No idea where to look at. I made the number of threads changeable, because I guessed that one can get problems depending on the network hardware. Maybe that can be the cause?

[SileC]

I don't understand either. Anyhow, glad to know thread adjustment fixes the error.