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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 <[email protected]>
Reviewed-by: Christoph Lameter <[email protected]>
Reviewed-by: Minchan Kim <[email protected]>
Reviewed-by: Rik van Riel <[email protected]>
Cc: David Rientjes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
KOSAKI Motohiro 2009-09-21 17:01:32 -07:00 • committed by Linus Torvalds
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",