EXCEPTION_DURING_VALUE_LOOKUP InvalidCastException while viewing MSNT_SystemTrace/SystemConfig/ProcessorGroup event

[MagicAndre1981]

When I view the MSNT_SystemTrace/SystemConfig/ProcessorGroup event, I see an InvalidCastException:

<Event MSec= "20559,6537" PID=  "-1" PName=        "" TID=  "-1" EventName="SystemConfig/ProcessorGroup"
  TimeStamp="06.29.18 17:23:22.272978" ID="Illegal" Version="2" Keywords="0x00000000" TimeStampQPC="71.241.516.466" QPCTime="0,100us"
  Level="Always" ProviderName="MSNT_SystemTrace" ProviderGuid="9e814aad-3204-11d2-9a82-006008a86939" ClassicProvider="True" ProcessorNumber="5"
  Opcode="26" TaskGuid="01853a65-418f-4f36-aefc-dc0f1d2fd235" Channel="0" PointerSize="8"
  CPU="5" EventIndex="1329036" TemplateType="DynamicTraceEventData">
  <PrettyPrint>
    <Event MSec= "20559,6537" PID=  "-1" PName=        "" TID=  "-1" EventName="SystemConfig/ProcessorGroup" ProviderName="MSNT_SystemTrace" Affinity="&lt;&lt;&lt;EXCEPTION_DURING_VALUE_LOOKUP InvalidCastException&gt;&gt;&gt;"/>
  </PrettyPrint>
  <Payload Length="12">
       0:   1  0  0  0 ff  0  0  0 |  0  0  0  0               ........ ....
  </Payload>
</Event>

The trace is from an Insider Build:

BuildLab="17692.1000.amd64fre.rs_prerelease.180609-1317" ProductName="Windows 10 Pro"

[brianrob]

@MagicAndre1981 it is possible that this has been resolved in the OS. Does this repro on a shipped build of Windows?

[MagicAndre1981]

@brianrob still happens in 18362.449 (this is most current stable).

Run WPR -start CPU -start Power and WPR -stop C:\cpu_power.etl. Now open the ETL in perfview and here I get the issue while trying to decode the event.

I use Perfview 2.0.46 to load the ETL.

[brianrob]

Thanks for confirming @MagicAndre1981.

[github-actions]

Due to lack of recent activity, this issue has been labeled as 'stale'. It will be closed if no further activity occurs within 30 more days. Any new comment will remove the label.

[MagicAndre1981]

I still see this casting error in the most recent PerfView version on Windows 11 23H2.

[brianrob]

I still see this casting error in the most recent PerfView version on Windows 11 23H2.

Thanks @MagicAndre1981. I have a fix out for this.

[MagicAndre1981]

Thanks @MagicAndre1981. I have a fix out for this.

the Fix works for me.

<Event MSec= "42988.4096" PID= "-1" PName= "" TID= "-1" EventName="SystemConfig/ProcessorGroup" ProviderName="MSNT_SystemTrace" Affinity="[255]"/>

[brianrob]

Thanks @MagicAndre1981. I have a fix out for this.

the Fix works for me.

<Event MSec= "42988.4096" PID= "-1" PName= "" TID= "-1" EventName="SystemConfig/ProcessorGroup" ProviderName="MSNT_SystemTrace" Affinity="[255]"/>

Awesome! Thanks for testing this!