From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751762Ab3LJBvQ (ORCPT ); Mon, 9 Dec 2013 20:51:16 -0500 Received: from szxga01-in.huawei.com ([119.145.14.64]:40804 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751489Ab3LJBvP (ORCPT ); Mon, 9 Dec 2013 20:51:15 -0500 Message-ID: <52A670AC.6090504@huawei.com> Date: Tue, 10 Dec 2013 09:38:52 +0800 From: Xishi Qiu User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Andrew Morton , KOSAKI Motohiro , Michal Hocko , Mel Gorman , , Naoya Horiguchi CC: LKML , , Xishi Qiu Subject: [PATCH V2] mm: add show num_poisoned_pages when oom Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.135.74.196] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Suggested-by: Naoya Horiguchi Acked-by: Michal Hocko Acked-by: David Rientjes --- 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