From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ie0-f180.google.com (mail-ie0-f180.google.com [209.85.223.180]) by kanga.kvack.org (Postfix) with ESMTP id 6A4D86B0055 for ; Mon, 9 Dec 2013 20:47:50 -0500 (EST) Received: by mail-ie0-f180.google.com with SMTP id tp5so7644995ieb.11 for ; Mon, 09 Dec 2013 17:47:50 -0800 (PST) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com. [119.145.14.64]) by mx.google.com with ESMTP id mv8si278506igb.73.2013.12.09.17.47.24 for ; Mon, 09 Dec 2013 17:47:49 -0800 (PST) Message-ID: <52A670AC.6090504@huawei.com> Date: Tue, 10 Dec 2013 09:38:52 +0800 From: Xishi Qiu MIME-Version: 1.0 Subject: [PATCH V2] mm: add show num_poisoned_pages when oom Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton , KOSAKI Motohiro , Michal Hocko , Mel Gorman , rientjes@google.com, Naoya Horiguchi Cc: LKML , linux-mm@kvack.org, Xishi Qiu 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org 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