Subject: + slab-fix-init_lock_keys.patch added to -mm tree
To: cl@xxxxxxxxx,penberg@xxxxxxxxxx,penguin-kernel@xxxxxxxxxxxxxxxxxxx,stable@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 01 Jul 2013 13:09:10 -0700
The patch titled
Subject: slab: fix init_lock_keys
has been added to the -mm tree. Its filename is
slab-fix-init_lock_keys.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ slab-fix-init_lock_keys.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ slab-fix-init_lock_keys.patch
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The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Christoph Lameter <cl@xxxxxxxxx>
Subject: slab: fix init_lock_keys
init_lock_keys() goes too far in initializing values in kmalloc_caches
because it assumed that the size of the kmalloc array goes up to
MAX_ORDER. However, the size of the kmalloc array for SLAB may be
restricted due to increased page sizes or CONFIG_FORCE_MAX_ZONEORDER.
Tetsuo said:
: It hangs (with CPU#0 spinning) immediately after printing
:
: Decompressing Linux... Parsing ELF... done.
: Booting the kernel.
:
: lines.
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
Reported-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> [3.10.x]
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/slab.c~slab-fix-init_lock_keys mm/slab.c
--- a/mm/slab.c~slab-fix-init_lock_keys
+++ a/mm/slab.c
@@ -565,7 +565,7 @@ static void init_node_lock_keys(int q)
if (slab_state < UP)
return;
- for (i = 1; i < PAGE_SHIFT + MAX_ORDER; i++) {
+ for (i = 1; i <= KMALLOC_SHIFT_HIGH; i++) {
struct kmem_cache_node *n;
struct kmem_cache *cache = kmalloc_caches[i];
_
Patches currently in -mm which might be from cl@xxxxxxxxx are
linux-next.patch
slab-fix-init_lock_keys.patch
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