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mm: oom analysis: Show kernel stack usage in /proc/meminfo and OOM log output

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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>
This commit is contained in:
KOSAKI Motohiro 2009-09-21 17:01:32 -07:00 • committed by Linus Torvalds
parent 71de1ccbe1
commit c6a7f5728a
6 changed files with 22 additions and 1 deletions
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1
mm/vmstat.c
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@ -639,6 +639,7 @@ static const char * const vmstat_text[] = {
"nr_slab_reclaimable",
"nr_slab_unreclaimable",
"nr_page_table_pages",
"nr_kernel_stack",
"nr_unstable",
"nr_bounce",
"nr_vmscan_write",