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SubjectRe: [mmotm][BUG] free is bigger than presnet Re: mmotm 2009-08-27-16-51 uploaded
On Tue, 1 Sep 2009, KAMEZAWA Hiroyuki wrote:
>
> I'm not digggin so much but /proc/meminfo corrupted.
>
> [kamezawa@bluextal cgroup]$ cat /proc/meminfo
> MemTotal: 24421124 kB
> MemFree: 38314388 kB

If that's without my fix to shrink_active_list(), I'd try again with.
Hugh

[PATCH mmotm] vmscan move pgdeactivate modification to shrink_active_list fix

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>
---

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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