On 12/13/2014 03:27 AM, Ingo Molnar wrote: > > * Ingo Molnar <mi...@kernel.org> wrote: > >> >> * Linus Torvalds <torva...@linux-foundation.org> wrote: >> >>> On Fri, Dec 12, 2014 at 10:54 AM, Dave Jones <da...@redhat.com> wrote: >>> >>>> >>>> Something that's still making me wonder if it's some kind of >>>> hardware problem is the non-deterministic nature of this bug. >>> >>> I'd expect it to be a race condition, though. Which can easily >>> cause these kinds of issues, and the timing will be pretty >>> random even if the load is very regular. >>> >>> And we know that the scheduler has an integer overflow under >>> Sasha's loads, although I didn't hear anything from Ingo and >>> friends about it. Ingo/Peter, you were cc'd on that report, >>> where at least one of the multiplcations in wake_affine() ended >>> up overflowing.. >> >> Just to make sure, is there any other wake_affine report other >> than the one in this thread? (I tried a wake_affine full text >> search on my inbox and didn't find anything that appeared >> relevant.) > > Found the report from Sasha: > > sched: odd values for effective load calculations > > right?
Yup, that's the one. Thanks, Sasha -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
