The patch titled
init_reap_node() initialization fix
has been added to the -mm tree. Its filename is
init_reap_node-initialization-fix.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: init_reap_node() initialization fix
From: Daniel Yeisley <dan.yeisley@xxxxxxxxxx>
It looks like there is a bug in init_reap_node() in slab.c that can cause
multiple oops's on certain ES7000 configurations. The variable reap_node
is defined per cpu, but only initialized on a single CPU. This causes an
oops in next_reap_node() when __get_cpu_var(reap_node) returns the wrong
value. Fix is below.
Signed-off-by: Dan Yeisley <dan.yeisley@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: Christoph Lameter <clameter@xxxxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/slab.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/slab.c~init_reap_node-initialization-fix mm/slab.c
--- a/mm/slab.c~init_reap_node-initialization-fix
+++ a/mm/slab.c
@@ -883,7 +883,7 @@ static void init_reap_node(int cpu)
if (node == MAX_NUMNODES)
node = first_node(node_online_map);
- __get_cpu_var(reap_node) = node;
+ per_cpu(reap_node, cpu) = node;
}
static void next_reap_node(void)
_
Patches currently in -mm which might be from dan.yeisley@xxxxxxxxxx are
init_reap_node-initialization-fix.patch
-
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