On Sat, Aug 09, 2014 at 04:11:06PM -0700, Hugh Dickins wrote:
> On Fri, 1 Aug 2014, Naoya Horiguchi wrote:
>
> > After fixing locking in follow_page(FOLL_GET) for hugepages, I start to
> > observe the BUG of "get_page() on refcount 0 page" in hugetlb_fault() in
> > the same test.
> >
> > I'm not
On Sat, Aug 09, 2014 at 04:11:06PM -0700, Hugh Dickins wrote:
On Fri, 1 Aug 2014, Naoya Horiguchi wrote:
After fixing locking in follow_page(FOLL_GET) for hugepages, I start to
observe the BUG of get_page() on refcount 0 page in hugetlb_fault() in
the same test.
I'm not exactly sure
On Fri, 1 Aug 2014, Naoya Horiguchi wrote:
> After fixing locking in follow_page(FOLL_GET) for hugepages, I start to
> observe the BUG of "get_page() on refcount 0 page" in hugetlb_fault() in
> the same test.
>
> I'm not exactly sure about how this race is triggered, but hugetlb_fault()
> calls
On Fri, 1 Aug 2014, Naoya Horiguchi wrote:
After fixing locking in follow_page(FOLL_GET) for hugepages, I start to
observe the BUG of get_page() on refcount 0 page in hugetlb_fault() in
the same test.
I'm not exactly sure about how this race is triggered, but hugetlb_fault()
calls
After fixing locking in follow_page(FOLL_GET) for hugepages, I start to
observe the BUG of "get_page() on refcount 0 page" in hugetlb_fault() in
the same test.
I'm not exactly sure about how this race is triggered, but hugetlb_fault()
calls pte_page() and get_page() outside page table lock, so
After fixing locking in follow_page(FOLL_GET) for hugepages, I start to
observe the BUG of get_page() on refcount 0 page in hugetlb_fault() in
the same test.
I'm not exactly sure about how this race is triggered, but hugetlb_fault()
calls pte_page() and get_page() outside page table lock, so it's
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