On Tue, Mar 31, 2015 at 02:35:21PM -0700, Andrew Morton wrote:
> On Tue, 31 Mar 2015 01:45:55 + Naoya Horiguchi
> wrote:
>
> > Currently when a process accesses to hugetlb range protected with PROTNONE,
> > unexpected COWs are triggered, which finally put hugetlb subsystem into
> > broken/un
On Tue, 31 Mar 2015 01:45:55 + Naoya Horiguchi
wrote:
> Currently when a process accesses to hugetlb range protected with PROTNONE,
> unexpected COWs are triggered, which finally put hugetlb subsystem into
> broken/uncontrollable state, where for example h->resv_huge_pages is
> subtracted
>
ggestion. It passed my testing.
Thanks,
Naoya Horiguchi
---
From: Naoya Horiguchi
Subject: [PATCH] mm: numa: disable change protection for vma(VM_HUGETLB)
Currently when a process accesses to hugetlb range protected with PROTNONE,
unexpected COWs are triggered, which finally put hugetlb subsystem into
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