Messages in this thread | | | Date | Fri, 15 Jan 2021 14:27:53 +0100 | From | Oscar Salvador <> | Subject | Re: [PATCH v6 5/5] mm: hugetlb: remove VM_BUG_ON_PAGE from page_huge_active |
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On Fri, Jan 15, 2021 at 08:49:42PM +0800, Muchun Song wrote: > The page_huge_active() can be called from scan_movable_pages() which > do not hold a reference count to the HugeTLB page. So when we call > page_huge_active() from scan_movable_pages(), the HugeTLB page can > be freed parallel. Then we will trigger a BUG_ON which is in the > page_huge_active() when CONFIG_DEBUG_VM is enabled. Just remove the > VM_BUG_ON_PAGE. > > Fixes: 7e1f049efb86 ("mm: hugetlb: cleanup using paeg_huge_active()") > Signed-off-by: Muchun Song <songmuchun@bytedance.com> > Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> > Acked-by: Michal Hocko <mhocko@suse.com> > Cc: stable@vger.kernel.org
Reviewed-by: Oscar Salvador <osalvador@suse.de>
-- Oscar Salvador SUSE L3
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