On Friday, December 28, 2018 4:53 AM, Andi Kleen wrote: > Actually forgot one case. > > In Arch Perfmon v4 the LBR freezing is also controlled through a > GLOBAL_CTRL bit. > I didn't see any code handling that bit? That GLOBAL_STATUS.LBR_FRZ bit hasn't been supported yet. I'll add that, thanks. Best, Wei