Messages in this thread | | | Date | Tue, 14 Oct 2014 16:54:35 +0200 | From | Peter Zijlstra <> | Subject | Re: [BUG] mm, thp: khugepaged can't allocate on requested node when confined to a cpuset |
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On Tue, Oct 14, 2014 at 02:48:28PM +0300, Kirill A. Shutemov wrote:
> Why whould you want to pin khugpeaged? Is there a valid use-case? > Looks like userspace shoots to its leg.
Its just bad design to put so much work in another context. But the use-case is isolating other cpus.
> Is there a reason why we should respect cpuset limitation for kernel > threads?
Yes, because we want to allow isolating CPUs from 'random' activity.
> Should we bypass cpuset for PF_KTHREAD completely?
No. That'll break stuff.
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