From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id E13686B0236 for ; Tue, 8 Jun 2010 07:58:29 -0400 (EDT) Received: from m2.gw.fujitsu.co.jp ([10.0.50.72]) by fgwmail6.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o58BwRWY019281 for (envelope-from kosaki.motohiro@jp.fujitsu.com); Tue, 8 Jun 2010 20:58:27 +0900 Received: from smail (m2 [127.0.0.1]) by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 6D23745DE51 for ; Tue, 8 Jun 2010 20:58:27 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (s2.gw.fujitsu.co.jp [10.0.50.92]) by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 483FE45DE4E for ; Tue, 8 Jun 2010 20:58:27 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 337BB1DB803A for ; Tue, 8 Jun 2010 20:58:27 +0900 (JST) Received: from m108.s.css.fujitsu.com (m108.s.css.fujitsu.com [10.249.87.108]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id D7F561DB8038 for ; Tue, 8 Jun 2010 20:58:26 +0900 (JST) From: KOSAKI Motohiro Subject: [PATCH 05/10] oom: enable oom tasklist dump by default In-Reply-To: <20100608204621.767A.A69D9226@jp.fujitsu.com> References: <20100608204621.767A.A69D9226@jp.fujitsu.com> Message-Id: <20100608205749.7689.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Tue, 8 Jun 2010 20:58:26 +0900 (JST) Sender: owner-linux-mm@kvack.org To: "Luis Claudio R. Goncalves" , LKML , linux-mm , Oleg Nesterov , David Rientjes , Andrew Morton , KAMEZAWA Hiroyuki , Nick Piggin , Minchan Kim Cc: kosaki.motohiro@jp.fujitsu.com List-ID: From: David Rientjes The oom killer tasklist dump, enabled with the oom_dump_tasks sysctl, is very helpful information in diagnosing why a user's task has been killed. It emits useful information such as each eligible thread's memory usage that can determine why the system is oom, so it should be enabled by default. Signed-off-by: David Rientjes Signed-off-by: KOSAKI Motohiro --- Documentation/sysctl/vm.txt | 2 +- mm/oom_kill.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 5fdbb61..3936b61 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -511,7 +511,7 @@ information may not be desired. If this is set to non-zero, this information is shown whenever the OOM killer actually kills a memory-hogging task. -The default value is 0. +The default value is 1 (enabled). ============================================================== diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 80492ff..b88172c 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -31,7 +31,7 @@ int sysctl_panic_on_oom; int sysctl_oom_kill_allocating_task; -int sysctl_oom_dump_tasks; +int sysctl_oom_dump_tasks = 1; static DEFINE_SPINLOCK(zone_scan_lock); /* #define DEBUG */ -- 1.6.5.2 -- 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