On Thu, Dec 03, 2015 at 01:22:19PM -0800, Andi Kleen wrote: > From: Andi Kleen <[email protected]> > > The recent change 75f80859b1 (... Robustify PEBS buffer drain) > causes lots of warnings on different CPUs before Skylake > when running PEBS intensive workloads. > > They can have a zero status field in the PEBS record when > PEBS is racing with clearing of GLOBAl_STATUS.
Ah, so _that_ is the explanation! Please put that in a comment near that code. This has long puzzled me. Thanks for digging into that. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
