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    SubjectRe: [PATCH mmotm] vmscan move pgdeactivate modification to shrink_active_list fix
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    Hi Hugh

    2009/8/29 Hugh Dickins <hugh.dickins@tiscali.co.uk>:
    > mmotm 2009-08-27-16-51 lets the OOM killer loose on my loads even
    > quicker than last time: one bug fixed but another bug introduced.
    > vmscan-move-pgdeactivate-modification-to-shrink_active_list.patch
    > forgot to add NR_LRU_BASE to lru index to make zone_page_state index.
    >
    > Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>

    Can I use your test case?
    Currently LRU_BASE is 0. it mean

    LRU_BASE == NR_INACTIVE_ANON == 0
    LRU_ACTIVE == NR_ACTIVE_ANON == 1

    Therefore, I doubt there are another issue in current mmotm.
    Can I join your strange oom fixing works?


    > ---
    >
    >  mm/vmscan.c |    6 ++++--
    >  1 file changed, 4 insertions(+), 2 deletions(-)
    >
    > --- mmotm/mm/vmscan.c   2009-08-28 10:07:57.000000000 +0100
    > +++ linux/mm/vmscan.c   2009-08-28 18:30:33.000000000 +0100
    > @@ -1381,8 +1381,10 @@ static void shrink_active_list(unsigned
    >        reclaim_stat->recent_rotated[file] += nr_rotated;
    >        __count_vm_events(PGDEACTIVATE, nr_deactivated);
    >        __mod_zone_page_state(zone, NR_ISOLATED_ANON + file, -nr_taken);
    > -       __mod_zone_page_state(zone, LRU_ACTIVE + file * LRU_FILE, nr_rotated);
    > -       __mod_zone_page_state(zone, LRU_BASE + file * LRU_FILE, nr_deactivated);
    > +       __mod_zone_page_state(zone, NR_ACTIVE_ANON + file * LRU_FILE,
    > +                                                       nr_rotated);
    > +       __mod_zone_page_state(zone, NR_INACTIVE_ANON + file * LRU_FILE,
    > +                                                       nr_deactivated);
    >        spin_unlock_irq(&zone->lru_lock);
    >  }
    >
    >
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