Messages in this thread | | | Date | Thu, 14 Feb 2019 16:25:24 +0900 | From | Minchan Kim <> | Subject | Re: [PATCH] mm: Fix the pgtable leak |
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On Wed, Feb 13, 2019 at 01:24:58PM +0100, Michal Hocko wrote: > On Wed 13-02-19 21:12:00, Minchan Kim wrote: > > 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 <hannes@cmpxchg.org> > > > > Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > > > > Cc: Michal Hocko <mhocko@suse.com> > > > > Cc: Andrew Morton <akpm@linux-foundation.org> > > > > Cc: Hugh Dickins <hughd@google.com> > > > > Cc: Liu Bo <bo.liu@linux.alibaba.com> > > > > Cc: <stable@vger.kernel.org> [4.9] > > > > Signed-off-by: Minchan Kim <minchan@kernel.org> > > > > > > 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. > > See http://lkml.kernel.org/r/20190115174036.GA24149@dhcp22.suse.cz > > But my question was more about "this is a stable only thing"? It was not > obvious from the subject so I wanted to be sure that I am not missing > anything.
Yub, I think only 4.9 stable tree need to be fixed because Hugh's patch was in there since v4.10.
Thanks.
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