ExecutionEngineException with no stack trace during document operations - Need guidance

[hammadkhandev888]

Problem

I'm experiencing frequent System.ExecutionEngineException crashes in my .NET MAUI application when performing Couchbase Lite operations. The exception provides no stack trace or source information, making it extremely difficult to debug.

Environment

• Couchbase Lite .NET Version: 4.0.2 (Enterprise)
• .NET Version: .NET 10.0
• Platform: .NET MAUI (Windows desktop)
• OS: Windows 10/11

Exception Details

System.ExecutionEngineException
HResult=0x80131506
Source=
StackTrace:

Code

public async Task<string> UpdateAssignedSizesAsync(AssignedSize assignedSize)
{
    try
    {
        var assignedSizesCollection = _context.GetCollection("assignedSizes");
        if (!string.IsNullOrEmpty(assignedSize.Id))
        {
            var doc = assignedSizesCollection.GetDocument(assignedSize.Id);
            
            if (doc != null)
            {
                assignedSize.ModifiedDate = DateTime.UtcNow;
                var updatedDoc = DocumentMapper.ToDocument(assignedSize, assignedSize.Id);
                assignedSizesCollection.Save(updatedDoc);
                updatedDoc.Dispose();
                return assignedSize.Id!;
            }
        }
        
        // ... fallback logic
    }
    catch
    {
        return string.Empty;
    }
}

No consistent reproduction pattern

[haleemzahid]

Hi @avsej @chrisdurtschi
We are still facing this issue. Could you please take a look?

[borrrden]

As you said you have no stack trace and no reproduction so unfortunately there's nothing I can say about why this happens. This error is basically equivalent to "the .NET runtime crashed". You should be able to get a minidump the next time it happens though, which would give more insight -> https://learn.microsoft.com/en-us/windows/win32/wer/collecting-user-mode-dumps .

[haleemzahid]

Yeah, It is not easy to recreate the issue. We will send you a mini dump next time if it happens

[hammadkhandev888]

As you said you have no stack trace and no reproduction so unfortunately there's nothing I can say about why this happens. This error is basically equivalent to "the .NET runtime crashed". You should be able to get a minidump the next time it happens though, which would give more insight -> https://learn.microsoft.com/en-us/windows/win32/wer/collecting-user-mode-dumps .

https://drive.google.com/file/d/1aeSH0Z3071sojQyGvr-qJxw5-C6YOEqt/view?usp=sharing

Here is the App.exe.dmp file

[borrrden]

I've had to request access to this file. I'll have a look when I receive it.

[hammadkhandev888]

I've had to request access to this file. I'll have a look when I receive it.

I apologize for the delays. I have given you access to the file. You can access it now

[borrrden]

The "good" news is that the crash happens in our code so I should be able to figure out what is going on better than if it were off somewhere else. Also you mentioned that you are using the Enterprise product so I assume you are either in development, or you have a license for deployment. If it's the latter you should be coordinating with the support team to have this move more quickly.

[borrrden]

Filed CBL-7963 to track

[hammadkhandev888]

Filed CBL-7963 to track

Sounds good, thanks.

[kpenningroth-0504]

Hi @hammadkhandev888 , could you please detail the steps to reproduce this error, if possible?

[hammadkhandev888]

Hi @hammadkhandev888 , could you please detail the steps to reproduce this error, if possible?

https://drive.google.com/file/d/1aeSH0Z3071sojQyGvr-qJxw5-C6YOEqt/view?usp=sharing

Here is the App.exe.dmp file; I hope it will help you.

Actually everywhere it randomly happens whenever i have concurrent calls to DB and quickly

[haleemzahid]

Is there any update on this? We provided the couchbase db logs as well, what else is needed?

[adamcfraser]

Issue is being tracked through official support process and CBL-7963, closing the github issue.