Windows 7: Session "Circular Kernel Context Logger" failed to start error

Hi,

I notice that sometimes (seemingly randomly), if I log out of my user account and log back in event viewer will log the following:

Session "Circular Kernel Context Logger" failed to start with the following error: 0xC0000035

- <Event xmlns="Error">
- <System>
<Provider Name="Microsoft-Windows-Kernel-EventTracing" Guid="{B675EC37-BDB6-4648-BC92-F3FDC74D3CA2}" />

<EventID>2</EventID>

<Version>0</Version>

<Level>2</Level>

<Task>2</Task>

<Opcode>12</Opcode>

<Keywords>0x8000000000000010</Keywords>

<TimeCreated SystemTime="2011-12-18T15:10:35.831996000Z" />

<EventRecordID>104</EventRecordID>

<Correlation />

<Execution ProcessID="4" ThreadID="48" />

<Channel>Microsoft-Windows-Kernel-EventTracing/Admin</Channel>

<Computer>frozenreads-PC</Computer>

<Security UserID="S-1-5-18" />

</System>


- <EventData>
<Data Name="SessionName">Circular Kernel Context Logger</Data>

<Data Name="FileName" />

<Data Name="ErrorCode">3221225525</Data>

<Data Name="LoggingMode">268436608</Data>

</EventData>


</Event>



It logs roughly 20 errors all ways exactly the same as above. I notice that a lot of people have posted on various forums about this but I have never seen a final answer as to what is causing this. It does not appear to be a major issue, I am just curious as to what causing this error. Any thoughts? It only ever appears when I log out (does not occur on shut down/restart) and back in and then only sometimes.