The patch titled
fix oom killer kills current every time if there is memory-less-node take2
has been added to the -mm tree. Its filename is
fix-oom-killer-kills-current-every-time-if-there-is.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: fix oom killer kills current every time if there is memory-less-node take2
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
constrained_alloc(), which is called to detect where oom is from, checks
passed zone_list(). If zone_list doesn't include all nodes, it thinks oom
is from mempolicy.
But there is memory-less-node. memory-less-node's zones are never included
in zonelist[].
contstrained_alloc() should get memory_less_node into count. Otherwise, it
always thinks 'oom is from mempolicy'. This means that current process
dies at any time. This patch fix it.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Paul Jackson <pj@xxxxxxx>
Cc: Christoph Lameter <clameter@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/oom_kill.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff -puN mm/oom_kill.c~fix-oom-killer-kills-current-every-time-if-there-is mm/oom_kill.c
--- a/mm/oom_kill.c~fix-oom-killer-kills-current-every-time-if-there-is
+++ a/mm/oom_kill.c
@@ -174,7 +174,12 @@ static inline int constrained_alloc(stru
{
#ifdef CONFIG_NUMA
struct zone **z;
- nodemask_t nodes = node_online_map;
+ nodemask_t nodes;
+ int node;
+ /* node has memory ? */
+ for_each_online_node(node)
+ if (NODE_DATA(node)->node_present_pages)
+ node_set(node, nodes);
for (z = zonelist->zones; *z; z++)
if (cpuset_zone_allowed_softwall(*z, gfp_mask))
_
Patches currently in -mm which might be from kamezawa.hiroyu@xxxxxxxxxxxxxx are
fix-oom-killer-kills-current-every-time-if-there-is.patch
mm-only-sched-add-a-few-scheduler-event-counters.patch
reiser4-hardirq-include-fix.patch
-
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