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From: Xishi Qiu <qiuxishi@huawei.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>, Mel Gorman <mgorman@suse.de>,
	rientjes@google.com, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	linux-mm@kvack.org, Xishi Qiu <qiuxishi@huawei.com>
Subject: [PATCH V2] mm: add show num_poisoned_pages when oom
Date: Tue, 10 Dec 2013 09:38:52 +0800	[thread overview]
Message-ID: <52A670AC.6090504@huawei.com> (raw)

Show num_poisoned_pages when oom, it is a little helpful to find the reason.
Also it will be emitted anytime show_mem() is called.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Suggested-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
---
 lib/show_mem.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/lib/show_mem.c b/lib/show_mem.c
index 5847a49..1cbdcd8 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -46,4 +46,7 @@ void show_mem(unsigned int filter)
 	printk("%lu pages in pagetable cache\n",
 		quicklist_total_size());
 #endif
+#ifdef CONFIG_MEMORY_FAILURE
+	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
+#endif
 }
-- 
1.7.1


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WARNING: multiple messages have this Message-ID (diff)
From: Xishi Qiu <qiuxishi@huawei.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>, Mel Gorman <mgorman@suse.de>,
	<rientjes@google.com>,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: LKML <linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
	Xishi Qiu <qiuxishi@huawei.com>
Subject: [PATCH V2] mm: add show num_poisoned_pages when oom
Date: Tue, 10 Dec 2013 09:38:52 +0800	[thread overview]
Message-ID: <52A670AC.6090504@huawei.com> (raw)

Show num_poisoned_pages when oom, it is a little helpful to find the reason.
Also it will be emitted anytime show_mem() is called.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Suggested-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
---
 lib/show_mem.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/lib/show_mem.c b/lib/show_mem.c
index 5847a49..1cbdcd8 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -46,4 +46,7 @@ void show_mem(unsigned int filter)
 	printk("%lu pages in pagetable cache\n",
 		quicklist_total_size());
 #endif
+#ifdef CONFIG_MEMORY_FAILURE
+	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
+#endif
 }
-- 
1.7.1



             reply	other threads:[~2013-12-10  1:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-10  1:38 Xishi Qiu [this message]
2013-12-10  1:38 ` [PATCH V2] mm: add show num_poisoned_pages when oom Xishi Qiu
2013-12-10  1:53 ` Wanpeng Li
2013-12-10 19:56 ` KOSAKI Motohiro
2013-12-10 19:56   ` KOSAKI Motohiro

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