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
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, Xishi Qiu <qiuxishi@huawei.com>
Subject: [PATCH] mm: add show num_poisoned_pages when oom
Date: Mon, 9 Dec 2013 17:52:30 +0800 [thread overview]
Message-ID: <52A592DE.7010302@huawei.com> (raw)
Show num_poisoned_pages when oom, it is helpful to find the reason.
Signed-off-by: Xishi Qiu <qiuxishi@huawei.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 poisoned\n", atomic_long_read(&num_poisoned_pages));
+#endif
}
--
1.7.1
--
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next reply other threads:[~2013-12-09 9:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-09 9:52 Xishi Qiu [this message]
2013-12-09 15:50 ` Michal Hocko
2013-12-09 19:50 ` David Rientjes
2013-12-09 21:49 ` Naoya Horiguchi
2013-12-09 22:05 ` David Rientjes
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