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Crash when disposing an EventListener during shutdown #103480

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#105842
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Crash when disposing an EventListener during shutdown#103480
#105842
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mdh1418
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area-System.Diagnostics.Tracingin-prThere is an active PR which will close this issue when it is mergedThere is an active PR which will close this issue when it is merged
Milestone
9.0.0

Description

@kevingosse
kevingosse
opened on Jun 14, 2024
Issue body actions

Description

When there are multiple EventListeners in the same application, disposing one of them during application shutdown causes a crash. It affects at least .NET 6/7/8. Reproduced on Windows and Linux.

Reproduction Steps

Minimal repro:

    public class MyEventListener : EventListener
    {
        public MyEventListener()
        {
            EventSourceCreated += (_, e) => EnableEventSource(e.EventSource);
        }

        private void EnableEventSource(EventSource eventSource)
        {
            EnableEvents(eventSource, EventLevel.Informational, EventKeywords.All);
        }
    }

    internal class Program
    {
        static EventListener listener1;
        static EventListener listener2;

        static async Task Main(string[] args)
        {
            listener1 = new MyEventListener();
            listener2 = new MyEventListener();


            AppDomain.CurrentDomain.ProcessExit += (_, _) => listener1.Dispose();
        }
    }

Expected behavior

The app exits normally.

Actual behavior

The app crashes when exiting:

Fatal error. Internal CLR error. (0x80131506)
   at System.Diagnostics.Tracing.EventPipeInternal.Enable(System.String, System.Diagnostics.Tracing.EventPipeSerializationFormat, UInt32, System.Diagnostics.Tracing.EventPipeProviderConfiguration[])
   at System.Diagnostics.Tracing.EventPipeEventDispatcher.CommitDispatchConfiguration()
   at System.Diagnostics.Tracing.EventPipeEventDispatcher.SendCommand(System.Diagnostics.Tracing.EventListener, System.Diagnostics.Tracing.EventCommand, Boolean, System.Diagnostics.Tracing.EventLevel, System.Diagnostics.Tracing.EventKeywords)
   at System.Diagnostics.Tracing.EventListener.DisableEvents(System.Diagnostics.Tracing.EventSource)
   at System.Diagnostics.Tracing.EventListener.CallDisableEventsIfNecessary(System.Diagnostics.Tracing.EventDispatcher, System.Diagnostics.Tracing.EventSource)
   at System.Diagnostics.Tracing.EventListener.RemoveReferencesToListenerInEventSources(System.Diagnostics.Tracing.EventListener)
   at System.Diagnostics.Tracing.EventListener.Dispose()
   at SimpleApp.Program+<>c.<Main>b__2_0(System.Object, System.EventArgs)

Regression?

No response

Known Workarounds

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