KernelTraceEventParser.All generates System.InvalidCastException

[markculley]

The exception occurs on the .NET 3.5 runtime but not the .NET 4.0+ runtime, when executing the line "source.Kernel.All += Print;" in the sample code, below. Neither the same code nor my code doing something very similar work.

static void DataProcessing(string dataFileName)
    {
        Out.WriteLine("Opening the output file and printing the results.");
        using (var source = new ETWTraceEventSource(dataFileName))
        {
            if (source.EventsLost != 0)
                Out.WriteLine("WARNING: there were {0} lost events", source.EventsLost);

            // Set up callbacks to 
            source.Clr.All += Print;
            source.Kernel.All += Print;
        ...

Here is the Exception:

System.InvalidCastException occurred
Message=Unable to cast object of type 'System.Action1[Microsoft.Diagnostics.Tracing.TraceEvent]' to type 'System.Action1[Microsoft.Diagnostics.Tracing.Parsers.Kernel.EventTraceHeaderTraceData]'.
Source=Microsoft.Diagnostics.Tracing.TraceEvent
StackTrace:
at Microsoft.Diagnostics.Tracing.Parsers.Kernel.EventTraceHeaderTraceData.set_Target(Delegate value)
at Microsoft.Diagnostics.Tracing.TraceEventParser.Subscribe(SubscriptionRequest cur, TraceEvent template, Object templateState, Boolean mayHaveExistedBefore)
at Microsoft.Diagnostics.Tracing.TraceEventParser.<>c__DisplayClassb.b__a(TraceEvent template)
at Microsoft.Diagnostics.Tracing.Parsers.KernelTraceEventParser.EnumerateTemplates(Func3 eventsToObserve, Action1 callback)
at WindowsEtwDataCollector.EtwDataCollector.RunKernelTrace(ConditionChecker shouldAbort) in C:\dev\vault\Vault\DataCollectors\WindowsEtwDataCollector\EtwDataCollector.cs:line 174
InnerException:

Microsoft.Diagnostics.Tracing.Parsers.Kernel.EventTraceHeaderTraceData
.. is derived from ...
Microsoft.Diagnostics.Tracing.TraceEvent

System.InvalidCastException occurred
Message=Unable to cast object of type 'System.Action1[Microsoft.Diagnostics.Tracing.TraceEvent]' to type 'System.Action1[Microsoft.Diagnostics.Tracing.Parsers.Kernel.EventTraceHeaderTraceData]'.
Source=Microsoft.Diagnostics.Tracing.TraceEvent
StackTrace:
at Microsoft.Diagnostics.Tracing.Parsers.Kernel.EventTraceHeaderTraceData.set_Target(Delegate value)
at Microsoft.Diagnostics.Tracing.TraceEventParser.Subscribe(SubscriptionRequest cur, TraceEvent template, Object templateState, Boolean mayHaveExistedBefore)
at Microsoft.Diagnostics.Tracing.TraceEventParser.<>c__DisplayClassb.b__a(TraceEvent template)
at Microsoft.Diagnostics.Tracing.Parsers.KernelTraceEventParser.EnumerateTemplates(Func3 eventsToObserve, Action1 callback)
at WindowsEtwDataCollector.EtwDataCollector.RunKernelTrace(ConditionChecker shouldAbort) in C:\dev\vault\Vault\DataCollectors\WindowsEtwDataCollector\EtwDataCollector.cs:line 174
InnerException: