On Mon, 2 Sep 2024 04:39:24 +0800 Kairui Song <ryncsn@xxxxxxxxx> wrote: > > > MGLRU still suffers OOM issue on latest mm tree, so the test is done > > > with another fix merged [1]. > > > > > > Link: https://lore.kernel.org/linux-mm/CAOUHufYi9h0kz5uW3LHHS3ZrVwEq-kKp8S6N-MZUmErNAXoXmw@xxxxxxxxxxxxxx/ [1] > > > > This one is already queued for -stable. > > I didn't see this in -unstable or -stable though, is there any other > repo or branch I missed? Jingxiang is referring to this fix from Yu: > > diff --git a/mm/vmscan.c b/mm/vmscan.c > index cfa839284b92..778bf5b7ef97 100644 > --- a/mm/vmscan.c > +++ b/mm/vmscan.c > @@ -4320,7 +4320,7 @@ static bool sort_folio(struct lruvec *lruvec, > struct folio *folio, struct scan_c > } > > /* ineligible */ > - if (zone > sc->reclaim_idx || skip_cma(folio, sc)) { > + if (!folio_test_lru(folio) || zone > sc->reclaim_idx || > skip_cma(folio, sc)) { > gen = folio_inc_gen(lruvec, folio, false); > list_move_tail(&folio->lru, &lrugen->folios[gen][type][zone]); > return true; I was mistaken. I don't believe we ever received a formal/usable version of the above and the mm-hotfixes-unstable commits Revert "mm: skip CMA pages when they are not available" and revert-mm-skip-cma-pages-when-they-are-not-available-update change this code significantly.
