On Mon, 19 Jul 2021 17:53:12 +0800 Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> wrote: > > > On 7/19/21 5:28 AM, Kirill A. Shutemov wrote: > > On Sun, Jul 18, 2021 at 12:30:27PM +0800, Qi Zheng wrote: > >> The commit 63f3655f9501(mm, memcg: fix reclaim deadlock with writeback) > >> fix a deadlock bug by pre-allocating the pte page table outside of the > >> page lock, the commit f9ce0be71d1f(mm: Cleanup faultaround and > >> finish_fault() codepaths) rework the relevant code but ignore this race, > >> fix it. > >> > >> Fixes: f9ce0be71d1f(mm: Cleanup faultaround and finish_fault() codepaths) > >> Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> > > > > Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > > > > and add stable@, please. > > > > OK, I will add these in the patch v2, thanks. Please send this as a separate standalone patch, not as a part of the main series. Also, please include in the changelog a description of the user-visible impact of the bug which is being fixed.