[NativeAOT] IndexOutOfRangeException when running under perfview

[jkotas]

Stacktrace:

---> System.IndexOutOfRangeException: Index was outside the bounds of the array.
System.Diagnostic.Tracing.EventSource.WriteEventWithRelatedActivityIdCore
System.Diagnostic.Tracing.EventSource.WriteEvent
System.Diagnostic.DiagnosticSourceEventSource.FilterAndTransform
System.Diagnostic.DiagnostisListener.AllListenerObservable.OnNewDiagnosticListener
System.Diagnostic.Listener..ctor
System.Net.DiagnosticHandler..ctor
System.Runtime.CompilerServices.ClassConstructorRunner.EnsureClassConstructorRun

Repro: https://github.com/kshyju/Net7IsolatedHttpApp

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Issue Details

---

---> System.IndexOutOfRangeException: Index was outside the bounds of the array.
System.Diagnostic.Tracing.EventSource.WriteEventWithRelatedActivityIdCore
System.Diagnostic.Tracing.EventSource.WriteEvent
System.Diagnostic.DiagnosticSourceEventSource.FilterAndTransform
System.Diagnostic.DiagnostisListener.AllListenerObservable.OnNewDiagnosticListener
System.Diagnostic.Listener..ctor
System.Net.DiagnosticHandler..ctor
System.Runtime.CompilerServices.ClassConstructorRunner.EnsureClassConstructorRun

Author:	jkotas
Assignees:	-
Labels:	area-System.Diagnostics.Tracing, untriaged
Milestone:	-

[jkotas]

cc @noahfalk @brianrob

[tommcdon]

adding @vitek-karas
@jkotas do you know if this issue reproduces with a .net core trimmed app? I'm curious if this is a trimming safety issue, or if it is NativeAOT specific.

[jkotas]

There are multiple issues actually, some are native AOT specific and some apply to trimmed apps in general.

[eerhardt]

FYI - I've been hacking on DiagnosticSource to make it work with NativeAOT. I've got a change working with PerfView locally - eerhardt@5f27679.

I just need to figure out a way to test it now, so we can ensure it stays fixed.

[tommcdon]

@eerhardt is it OK if I assign this issue to you since you are working on a fix?