Messages in this thread | | | Subject | Re: [PATCHv3] mm: Account pud page tables | From | Rik van Riel <> | Date | Tue, 03 Oct 2017 15:59:27 -0400 |
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On Mon, 2017-10-02 at 11:04 +0300, Kirill A. Shutemov wrote: > On machine with 5-level paging support a process can allocate > significant amount of memory and stay unnoticed by oom-killer and > memory cgroup. The trick is to allocate a lot of PUD page tables. > We don't account PUD page tables, only PMD and PTE. > > We already addressed the same issue for PMD page tables, see > dc6c9a35b66b ("mm: account pmd page tables to the process"). > Introduction 5-level paging bring the same issue for PUD page tables. > > The patch expands accounting to PUD level. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > Cc: Michal Hocko <mhocko@suse.com> > Cc: Vlastimil Babka <vbabka@suse.cz> >
Acked-by: Rik van Riel <riel@redhat.com>
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