This is a note to let you know that I've just added the patch titled
memcg: don't initialize kmem-cache destroying work for root caches
to the 3.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
memcg-don-t-initialize-kmem-cache-destroying-work-for-root-caches.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From f101a9464bfbda42730b54a66f926d75ed2cd31e Mon Sep 17 00:00:00 2001
From: Andrey Vagin <ava...@openvz.org>
Date: Wed, 12 Jun 2013 14:04:42 -0700
Subject: memcg: don't initialize kmem-cache destroying work for root caches
From: Andrey Vagin <ava...@openvz.org>
commit f101a9464bfbda42730b54a66f926d75ed2cd31e upstream.
struct memcg_cache_params has a union. Different parts of this union
are used for root and non-root caches. A part with destroying work is
used only for non-root caches.
BUG: unable to handle kernel paging request at 0000000fffffffe0
IP: kmem_cache_alloc+0x41/0x1f0
Modules linked in: netlink_diag af_packet_diag udp_diag tcp_diag inet_diag
unix_diag ip6table_filter ip6_tables i2c_piix4 virtio_net virtio_balloon
microcode i2c_core pcspkr floppy
CPU: 0 PID: 1929 Comm: lt-vzctl Tainted: G D 3.10.0-rc1+ #2
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
RIP: kmem_cache_alloc+0x41/0x1f0
Call Trace:
getname_flags.part.34+0x30/0x140
getname+0x38/0x60
do_sys_open+0xc5/0x1e0
SyS_open+0x22/0x30
system_call_fastpath+0x16/0x1b
Code: f4 53 48 83 ec 18 8b 05 8e 53 b7 00 4c 8b 4d 08 21 f0 a8 10 74 0d 4c 89
4d c0 e8 1b 76 4a 00 4c 8b 4d c0 e9 92 00 00 00 4d 89 f5 <4d> 8b 45 00 65 4c 03
04 25 48 cd 00 00 49 8b 50 08 4d 8b 38 49
RIP [<ffffffff8116b641>] kmem_cache_alloc+0x41/0x1f0
Signed-off-by: Andrey Vagin <ava...@openvz.org>
Cc: Konstantin Khlebnikov <khlebni...@openvz.org>
Cc: Glauber Costa <glom...@parallels.com>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Balbir Singh <bsinghar...@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hir...@jp.fujitsu.com>
Reviewed-by: Michal Hocko <mho...@suse.cz>
Cc: Li Zefan <lize...@huawei.com>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
mm/memcontrol.c | 2 --
1 file changed, 2 deletions(-)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3033,8 +3033,6 @@ int memcg_update_cache_size(struct kmem_
return -ENOMEM;
}
- INIT_WORK(&s->memcg_params->destroy,
- kmem_cache_destroy_work_func);
s->memcg_params->is_root_cache = true;
/*
Patches currently in stable-queue which might be from ava...@openvz.org are
queue-3.9/memcg-don-t-initialize-kmem-cache-destroying-work-for-root-caches.patch
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