summaryrefslogtreecommitdiff
path: root/mm/page_alloc.c
diff options
context:
space:
mode:
authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-09-21 17:01:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-22 07:17:27 -0700
commitc6a7f5728a1db45d30df55a01adc130b4ab0327c (patch)
tree36649bc6ebb959841a5097c699968722cfd99c4d /mm/page_alloc.c
parent71de1ccbe1fb40203edd3beb473f8580d917d2ca (diff)
downloadconfigs-c6a7f5728a1db45d30df55a01adc130b4ab0327c.tar.gz
mm: oom analysis: Show kernel stack usage in /proc/meminfo and OOM log output
The amount of memory allocated to kernel stacks can become significant and cause OOM conditions. However, we do not display the amount of memory consumed by stacks. Add code to display the amount of memory used for stacks in /proc/meminfo. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> 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>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 494c09196c3..4e050f325eb 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2177,6 +2177,7 @@ void show_free_areas(void)
" mapped:%lukB"
" slab_reclaimable:%lukB"
" slab_unreclaimable:%lukB"
+ " kernel_stack:%lukB"
" pagetables:%lukB"
" unstable:%lukB"
" bounce:%lukB"
@@ -2201,6 +2202,8 @@ void show_free_areas(void)
K(zone_page_state(zone, NR_FILE_MAPPED)),
K(zone_page_state(zone, NR_SLAB_RECLAIMABLE)),
K(zone_page_state(zone, NR_SLAB_UNRECLAIMABLE)),
+ zone_page_state(zone, NR_KERNEL_STACK) *
+ THREAD_SIZE / 1024,
K(zone_page_state(zone, NR_PAGETABLE)),
K(zone_page_state(zone, NR_UNSTABLE_NFS)),
K(zone_page_state(zone, NR_BOUNCE)),