> > That looks to be a bug - sorry about that.
>  Appreciate it if you
> > can log a bug against kernel/dtrace for this.
> 
> 6962465 dcpc resets counter that has not overflowed
> to initial value
> _______________________________________________
> perf-discuss mailing list
> perf-discuss@opensolaris.org
> 

Besides the bug "6962465 dcpc resets counter that has not overflowed to 
initial value", I also find another bug. 

The new found bug is the kcpc reading the overflow bitmap from hw msr
before stopping all the pic counters. From the debug logs, I found some 
pics overflowed but hw didn't set the related bits in overflow bitmap.

I just completed a patch to fix above 2 bugs (leave "TODO" functions in the 
drivers of opteron, p123 and p4).

Who will have interests to review this patch?

Thanks
Jin Yao
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