From 4a0aa73f1d613bf19bc8610bf090c941ef49d720 Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Date: Mon, 21 Sep 2009 17:01:30 -0700 Subject: [PATCH] mm: oom analysis: add per-zone statistics to show_free_areas() show_free_areas() displays only a limited amount of zone counters. This patch includes additional counters in the display to allow easier debugging. This may be especially useful if an OOM is due to running out of DMA memory. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Acked-by: Wu Fengguang <fengguang.wu@intel.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- mm/page_alloc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bdf12f36bae0..8fbf5a4f5cf7 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2170,6 +2170,16 @@ void show_free_areas(void) " inactive_file:%lukB" " unevictable:%lukB" " present:%lukB" + " mlocked:%lukB" + " dirty:%lukB" + " writeback:%lukB" + " mapped:%lukB" + " slab_reclaimable:%lukB" + " slab_unreclaimable:%lukB" + " pagetables:%lukB" + " unstable:%lukB" + " bounce:%lukB" + " writeback_tmp:%lukB" " pages_scanned:%lu" " all_unreclaimable? %s" "\n", @@ -2184,6 +2194,16 @@ void show_free_areas(void) K(zone_page_state(zone, NR_INACTIVE_FILE)), K(zone_page_state(zone, NR_UNEVICTABLE)), K(zone->present_pages), + K(zone_page_state(zone, NR_MLOCK)), + K(zone_page_state(zone, NR_FILE_DIRTY)), + K(zone_page_state(zone, NR_WRITEBACK)), + K(zone_page_state(zone, NR_FILE_MAPPED)), + K(zone_page_state(zone, NR_SLAB_RECLAIMABLE)), + K(zone_page_state(zone, NR_SLAB_UNRECLAIMABLE)), + K(zone_page_state(zone, NR_PAGETABLE)), + K(zone_page_state(zone, NR_UNSTABLE_NFS)), + K(zone_page_state(zone, NR_BOUNCE)), + K(zone_page_state(zone, NR_WRITEBACK_TEMP)), zone->pages_scanned, (zone_is_all_unreclaimable(zone) ? "yes" : "no") ); -- GitLab