Reporting Services R2 log entries have stopped generating on report execution.

Hi -

I have a new instance of a reporting server and the log files have quit generating on report execution. 

When the services restart this is the log file:

rshost!rshost!8e8!01/22/2014-17:08:33:: i INFO: CLR runtime is initialized.
rshost!rshost!8e8!01/22/2014-17:08:33:: i INFO: Derived memory configuration based on physical memory as 3931704 KB
rshost!rshost!8e8!01/22/2014-17:08:33:: w WARN: Failed to initialize performance counters: ffffffff. Possible setup issue.
rshost!rshost!8e8!01/22/2014-17:08:33:: e ERROR: Failed to start service, error=1063.

We have logging turned on on the server.  Report Server Mode is Native.  Dont see anything in the application log about failed service.

Any ideas?