On Sun, Apr 24, 2011 at 9:25 AM, Minchan Kim <minchan.kim@xxxxxxxxx> wrote: > In putback_lru_page, unevictable page can be changed into evictable > 's one while we move it among lru. So we have checked it again and > rescued it. But we don't check PageActive, again. It could add > active page into inactive list so we can see the BUG in isolate_lru_pages. > (But I didn't see any report because I think it's very subtle) > > It could happen in race that zap_pte_range's mark_page_accessed and > putback_lru_page. It's subtle but could be possible. Please Ignore this. I was confused. The race never happens. -- Kind regards, Minchan Kim -- 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>