del_page_from_lru_list alreay called mem_cgroup_del_lru. So we need to call it again. It makes wrong stat of memcg and even happen VM_BUG_ON hit. Cc: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Signed-off-by: Minchan Kim <minchan.kim@xxxxxxxxx> --- mm/compaction.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/mm/compaction.c b/mm/compaction.c index 50b0a90..b0fbfdf 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -302,7 +302,6 @@ static unsigned long isolate_migratepages(struct zone *zone, /* Successfully isolated */ del_page_from_lru_list(zone, page, page_lru(page)); list_add(&page->lru, migratelist); - mem_cgroup_del_lru(page); cc->nr_migratepages++; nr_isolated++; -- 1.7.0.4 -- 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 policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>