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Shutemov" , Andrew Morton , Hugh Dickins , Liu Bo , stable@vger.kernel.org Subject: Re: [PATCH] mm: Fix the pgtable leak Message-ID: <20190213121200.GA52615@google.com> References: <20190213112900.33963-1-minchan@kernel.org> <20190213120330.GD4525@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190213120330.GD4525@dhcp22.suse.cz> User-Agent: Mutt/1.10.1+60 (6df12dc1) (2018-08-07) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Feb 13, 2019 at 01:03:30PM +0100, Michal Hocko wrote: > On Wed 13-02-19 20:29:00, Minchan Kim wrote: > > [1] was backported to v4.9 stable tree but it introduces pgtable > > memory leak because with fault retrial, preallocated pagetable > > could be leaked in second iteration. > > To fix the problem, this patch backport [2]. > > > > [1] 5cf3e5ff95876, mm, memcg: fix reclaim deadlock with writeback > > [2] b0b9b3df27d10, mm: stop leaking PageTables > > > > Fixes: 5cf3e5ff95876 ("mm, memcg: fix reclaim deadlock with writeback") > > Cc: Johannes Weiner > > Cc: Kirill A. Shutemov > > Cc: Michal Hocko > > Cc: Andrew Morton > > Cc: Hugh Dickins > > Cc: Liu Bo > > Cc: [4.9] > > Signed-off-by: Minchan Kim > > Thanks for catching this dependency. Do I assume it correctly that this > is stable-4.9 only? I have no idea how I could find it automatically that a stable patch of linus tree is spread out with several stable trees(Hope Greg has an answer). I just checked 4.4 longterm kernel and couldn't find it in there. Thanks.