Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756247Ab1CWNku (ORCPT ); Wed, 23 Mar 2011 09:40:50 -0400 Received: from mail-gy0-f174.google.com ([209.85.160.174]:63316 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755154Ab1CWNks (ORCPT ); Wed, 23 Mar 2011 09:40:48 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:content-transfer-encoding :in-reply-to:user-agent; b=V7ofFmjbsGadonI6ukvVgRCO3cd+LHJmX9WoO1/nb9x39Qps2mvJR8mfme+PPxcSbJ BmQT9dB9j+6XmExHr9uZuozI619Bnof8i59zC/Jv7sM+XebJw81JTY7vM28w30HPvXin IOs3orWYRGpa4x7kzLMNHHnB+LMdFoEpKu4IE= Date: Wed, 23 Mar 2011 10:40:37 -0300 From: "Luis Claudio R. Goncalves" To: KAMEZAWA Hiroyuki Cc: KOSAKI Motohiro , linux-kernel@vger.kernel.org, Andrew Morton , David Rientjes , Linus Torvalds , Rik van Riel , Oleg Nesterov , linux-mm , Andrey Vagin , Hugh Dickins Subject: Re: [PATCH 2/5] Revert "oom: give the dying task a higher priority" Message-ID: <20110323134037.GP5212@uudg.org> References: <20110315153801.3526.A69D9226@jp.fujitsu.com> <20110322194721.B05E.A69D9226@jp.fujitsu.com> <20110322200657.B064.A69D9226@jp.fujitsu.com> <20110323164229.6b647004.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20110323164229.6b647004.kamezawa.hiroyu@jp.fujitsu.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1583 Lines: 38 On Wed, Mar 23, 2011 at 04:42:29PM +0900, KAMEZAWA Hiroyuki wrote: | On Tue, 22 Mar 2011 20:06:48 +0900 (JST) | KOSAKI Motohiro wrote: | | > This reverts commit 93b43fa55088fe977503a156d1097cc2055449a2. | > | > The commit dramatically improve oom killer logic when fork-bomb | > occur. But, I've found it has nasty corner case. Now cpu cgroup | > has strange default RT runtime. It's 0! That said, if a process | > under cpu cgroup promote RT scheduling class, the process never | > run at all. | > | > Eventually, kernel may hang up when oom kill occur. | > | > The author need to resubmit it as adding knob and disabled | > by default if he really need this feature. | > | > Cc: Luis Claudio R. Goncalves | > Signed-off-by: KOSAKI Motohiro | | Acked-by: KAMEZAWA Hiroyuki The original patch was written to fix an issue observed in 2.6.24.7-rt. As the logic sounded useful, I ported it to upstream. Anyway,I am trying a few ideas to rework that patch. In the meantime, I'm pretty fine with reverting the commit. Acked-by: Luis Claudio R. Gon?alves -- [ Luis Claudio R. Goncalves Bass - Gospel - RT ] [ Fingerprint: 4FDD B8C4 3C59 34BD 8BE9 2696 7203 D980 A448 C8F8 ] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/