On Wed, 2011-03-16 at 13:50 +0100, Ingo Molnar wrote: > * Anton Blanchard <an...@samba.org> wrote: > > > > > Events on POWER7 can roll back if a speculative event doesn't > > eventually complete. Unfortunately in some rare cases they will > > raise a performance monitor exception. We need to catch this to > > ensure we reset the PMC. In all cases the PMC will be 256 or less > > cycles from overflow. > > > > Signed-off-by: Anton Blanchard <an...@samba.org> > > Cc: sta...@kernel.org > > --- > > > > I would prefer not to add the PVR check, but I think we want to limit > > this workaround to POWER7. Would a cpu feature be preferable? > > There was no objection from the PowerPC folks so i'll send this fix > Linuswards, ok?
Ah yes. Ack. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
