From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Wu Fengguang <fengguang.wu@intel.com>,
Nick Piggin <npiggin@suse.de>,
LKML <linux-kernel@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: [PATCH 4/4] hwpoison: avoid "still referenced by -1 users" warning
Date: Sat, 30 Jan 2010 17:25:13 +0800 [thread overview]
Message-ID: <20100130093704.146687888@intel.com> (raw)
In-Reply-To: 20100130092509.793222613@intel.com
[-- Attachment #1: hwpoison-no-warn-unknown.patch --]
[-- Type: text/plain, Size: 1383 bytes --]
Get rid of the amusing last line, emitted for slab/reserved kernel pages:
[ 328.396842] MCE 0x1ff00: Unknown page state
[ 328.399058] MCE 0x1ff00: dirty unknown page state page recovery: Failed
[ 328.402465] MCE 0x1ff00: unknown page state page still referenced by -1 users
CC: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
mm/memory-failure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-mm.orig/mm/memory-failure.c 2010-01-22 11:20:28.000000000 +0800
+++ linux-mm/mm/memory-failure.c 2010-01-30 17:23:40.000000000 +0800
@@ -803,7 +803,7 @@ static int page_action(struct page_state
count = page_count(p) - 1;
if (ps->action == me_swapcache_dirty && result == DELAYED)
count--;
- if (count != 0) {
+ if (count > 0) {
printk(KERN_ERR
"MCE %#lx: %s page still referenced by %d users\n",
pfn, ps->msg, count);
--
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prev parent reply other threads:[~2010-09-13 12:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20100130092509.793222613@intel.com>
2010-01-30 9:25 ` [PATCH 1/4] hwpoison: prevent /dev/kmem from accessing hwpoison pages Wu Fengguang
2010-01-30 9:25 ` Wu Fengguang [this message]
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