From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with ESMTP id C6D3C8D0039 for ; Tue, 8 Mar 2011 03:11:00 -0500 (EST) Received: by bwz17 with SMTP id 17so6068829bwz.14 for ; Tue, 08 Mar 2011 00:10:57 -0800 (PST) Message-ID: <4D75E4E6.9020507@gmail.com> Date: Tue, 08 Mar 2011 11:12:22 +0300 From: Andrew Vagin MIME-Version: 1.0 Subject: Re: [PATCH] mm: check zone->all_unreclaimable in all_unreclaimable() References: <1299325456-2687-1-git-send-email-avagin@openvz.org> <20110305152056.GA1918@barrios-desktop> <4D72580D.4000208@gmail.com> <20110305155316.GB1918@barrios-desktop> <4D7267B6.6020406@gmail.com> <20110305170759.GC1918@barrios-desktop> <20110307135831.9e0d7eaa.akpm@linux-foundation.org> <20110308094438.1ba05ed2.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20110308094438.1ba05ed2.kamezawa.hiroyu@jp.fujitsu.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: KAMEZAWA Hiroyuki Cc: Andrew Morton , Minchan Kim , Andrey Vagin , Mel Gorman , KOSAKI Motohiro , linux-mm@kvack.org, linux-kernel@vger.kernel.org Hi, All > I agree with Minchan and can't think this is a real fix.... > Andrey, I'm now trying your fix and it seems your fix for oom-killer, > 'skip-zombie-process' works enough good for my environ. > > What is your enviroment ? number of cpus ? architecture ? size of memory ? Processort: AMD Phenom(tm) II X6 1055T Processor (six-core) Ram: 8Gb RHEL6, x86_64. This host doesn't have swap. It hangs up fast. Tomorrow I will have to send a processes state, if it will be interesting for you. With my patch the kernel work fine. I added debug and found that it hangs up in the described case. I suppose that my patch may be incorrect, but the problem exists and we should do something. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org