Hi Mel, FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm head: d28e1f373a79e532eecbe6b17beeb4d2052c1a52 commit: 038b615836d456496d321156271e47881469c8fd [72/246] mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures config: i386-randconfig-k925 (attached as .config) All related error/warning messages: mm/vmscan.c: In function 'should_continue_reclaim': mm/vmscan.c:1787:10: error: 'struct zone' has no member named 'compact_order_failed' mm/vmscan.c:1788:32: error: 'struct zone' has no member named 'compact_defer_shift' vim +1787 mm/vmscan.c 1782 * If compaction is deferred for sc->order then scale the number of 1783 * pages reclaimed based on the number of consecutive allocation 1784 * failures 1785 */ 1786 zone = lruvec_zone(lruvec); > 1787 if (zone->compact_order_failed <= sc->order) 1788 pages_for_compaction <<= zone->compact_defer_shift; 1789 inactive_lru_pages = get_lru_size(lruvec, LRU_INACTIVE_FILE); 1790 if (nr_swap_pages > 0) 1791 inactive_lru_pages += get_lru_size(lruvec, LRU_INACTIVE_ANON); 1792 if (sc->nr_reclaimed < pages_for_compaction && --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation