> > Reported-by: Andrey Vagin <avagin@xxxxxxxxxx> > > Cc: Nick Piggin <npiggin@xxxxxxxxx> > > Cc: Minchan Kim <minchan.kim@xxxxxxxxx> > > Cc: Johannes Weiner <hannes@xxxxxxxxxxx> > > Cc: Rik van Riel <riel@xxxxxxxxxx> > > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > > Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> > > IIUC, I saw the pehnomenon which you pointed out, as > - all zone->all_unreclaimable = yes > - zone_reclaimable() returns true > - no pgscan proceeds. > > on a swapless system. So, I'd like to vote for this patch. > > But hmm...what happens all of pages are isolated or locked and now under freeing ? > I think we should have alternative safe-guard logic for avoiding to call > oom-killer. Hmm. Yes, this patch has small risk. but 1) this logic didn't work about two years (see changelog) 2) memcg haven't use this logic and I haven't get any bug report from memcg developers. therefore I decided to take most simple way. Of cource, I'll make another protection if I'll get any regression report. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>