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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2006-12-29 16:47:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-30 10:55:55 -0800 |
| commit | 96ac5913f4e45c6a1b98350f2c0a8bb3abe2646a (patch) | |
| tree | eb7f85431598ebf035e8b190d253e1b160694596 /mm | |
| parent | e4e6bdbb426d1ecd9e4587f22115f8d0d426d21f (diff) | |
| download | lwn-96ac5913f4e45c6a1b98350f2c0a8bb3abe2646a.tar.gz lwn-96ac5913f4e45c6a1b98350f2c0a8bb3abe2646a.zip | |
[PATCH] fix oom killer kills current every time if there is memory-less-node take2
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@jp.fujitsu.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/oom_kill.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 64cf3c214634..6969cfb33901 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -174,7 +174,12 @@ static inline int constrained_alloc(struct zonelist *zonelist, gfp_t gfp_mask) { #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)) |