RFC: Performance Monitor Counters device

Segher Boessenkool segher at koffie.nl
Fri Sep 13 07:45:22 EST 2002

Benjamin Herrenschmidt wrote:
> Hrm... you should check the various CPU erratas, I think
> the perf. counter exception suffers from the same bugs
> the thermal exceptions has regarding clashing with DEC
> and thus losing exception context information on some
> G4s. If this is the case, that would basically prevent
> using it.

Ooh, that sounds bad!  Thanks for the hint.


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