On Tue, Feb 17, 2015 at 04:02:49PM -0800, Andrew Morton wrote:
> On Tue, 17 Feb 2015 15:57:44 -0800 Andrew Morton
> wrote:
>
> > So if I'm understanding this correctly, hugepages never have PG_lru set
> > and so you are overloading that bit on hugepages to indicate that the
> > page is present o
On Tue, Feb 17, 2015 at 03:57:44PM -0800, Andrew Morton wrote:
> On Tue, 17 Feb 2015 09:32:08 + Naoya Horiguchi
> wrote:
>
> > Currently we are not safe from concurrent calls of isolate_huge_page(),
> > which can make the victim hugepage in invalid state and results in BUG_ON().
> >
> > The
On Tue, 17 Feb 2015 15:57:44 -0800 Andrew Morton
wrote:
> So if I'm understanding this correctly, hugepages never have PG_lru set
> and so you are overloading that bit on hugepages to indicate that the
> page is present on hstate->hugepage_activelist?
And maybe we don't need to overload PG_lru
On Tue, 17 Feb 2015 09:32:08 + Naoya Horiguchi
wrote:
> Currently we are not safe from concurrent calls of isolate_huge_page(),
> which can make the victim hugepage in invalid state and results in BUG_ON().
>
> The root problem of this is that we don't have any information on struct page
>
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