Messages in this thread | | | Date | Sat, 13 Dec 2014 09:27:51 +0100 | From | Ingo Molnar <> | Subject | Re: frequent lockups in 3.18rc4 |
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* Ingo Molnar <mingo@kernel.org> wrote:
> > * Linus Torvalds <torvalds@linux-foundation.org> wrote: > > > On Fri, Dec 12, 2014 at 10:54 AM, Dave Jones <davej@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?
Thanks,
Ingo
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