From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933507AbeAJOFy (ORCPT + 1 other); Wed, 10 Jan 2018 09:05:54 -0500 Received: from mail-qt0-f179.google.com ([209.85.216.179]:43345 "EHLO mail-qt0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933797AbeAJOFu (ORCPT ); Wed, 10 Jan 2018 09:05:50 -0500 X-Google-Smtp-Source: ACJfBosVsDMDsMQ+llP/Y3X9tspp75n1WSBTAUOTQ6r+wtq4vWEQkMAKoHdUMQaFoPMRF12mmhX2DA== Date: Wed, 10 Jan 2018 06:05:47 -0800 From: Tejun Heo To: Petr Mladek Cc: Steven Rostedt , Sergey Senozhatsky , akpm@linux-foundation.org, linux-mm@kvack.org, Cong Wang , Dave Hansen , Johannes Weiner , Mel Gorman , Michal Hocko , Vlastimil Babka , Peter Zijlstra , Linus Torvalds , Jan Kara , Mathieu Desnoyers , Tetsuo Handa , rostedt@home.goodmis.org, Byungchul Park , Sergey Senozhatsky , Pavel Machek , linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 0/2] printk: Console owner and waiter logic cleanup Message-ID: <20180110140547.GZ3668920@devbig577.frc2.facebook.com> References: <20180110132418.7080-1-pmladek@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180110132418.7080-1-pmladek@suse.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 Return-Path: On Wed, Jan 10, 2018 at 02:24:16PM +0100, Petr Mladek wrote: > This is the last version of Steven's console owner/waiter logic. > Plus my proposal to hide it into 3 helper functions. It is supposed > to keep the code maintenable. > > The handshake really works. It happens about 10-times even during > boot of a simple system in qemu with a fast console here. It is > definitely able to avoid some softlockups. Let's see if it is > enough in practice. > > From my point of view, it is ready to go into linux-next so that > it can get some more test coverage. > > Steven's patch is the v4, see > https://lkml.kernel.org/r/20171108102723.602216b1@gandalf.local.home At least for now, Nacked-by: Tejun Heo Maybe this can be a part of solution but it's really worrying how the whole discussion around this subject is proceeding. You guys are trying to railroad actual problems. Please address actual technical problems. Thanks. -- tejun From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f197.google.com (mail-qt0-f197.google.com [209.85.216.197]) by kanga.kvack.org (Postfix) with ESMTP id 5F7346B0033 for ; Wed, 10 Jan 2018 09:05:51 -0500 (EST) Received: by mail-qt0-f197.google.com with SMTP id e2so13907564qti.3 for ; Wed, 10 Jan 2018 06:05:51 -0800 (PST) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id y24sor11609756qty.124.2018.01.10.06.05.50 for (Google Transport Security); Wed, 10 Jan 2018 06:05:50 -0800 (PST) Date: Wed, 10 Jan 2018 06:05:47 -0800 From: Tejun Heo Subject: Re: [PATCH v5 0/2] printk: Console owner and waiter logic cleanup Message-ID: <20180110140547.GZ3668920@devbig577.frc2.facebook.com> References: <20180110132418.7080-1-pmladek@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180110132418.7080-1-pmladek@suse.com> Sender: owner-linux-mm@kvack.org List-ID: To: Petr Mladek Cc: Steven Rostedt , Sergey Senozhatsky , akpm@linux-foundation.org, linux-mm@kvack.org, Cong Wang , Dave Hansen , Johannes Weiner , Mel Gorman , Michal Hocko , Vlastimil Babka , Peter Zijlstra , Linus Torvalds , Jan Kara , Mathieu Desnoyers , Tetsuo Handa , rostedt@home.goodmis.org, Byungchul Park , Sergey Senozhatsky , Pavel Machek , linux-kernel@vger.kernel.org On Wed, Jan 10, 2018 at 02:24:16PM +0100, Petr Mladek wrote: > This is the last version of Steven's console owner/waiter logic. > Plus my proposal to hide it into 3 helper functions. It is supposed > to keep the code maintenable. > > The handshake really works. It happens about 10-times even during > boot of a simple system in qemu with a fast console here. It is > definitely able to avoid some softlockups. Let's see if it is > enough in practice. > > From my point of view, it is ready to go into linux-next so that > it can get some more test coverage. > > Steven's patch is the v4, see > https://lkml.kernel.org/r/20171108102723.602216b1@gandalf.local.home At least for now, Nacked-by: Tejun Heo Maybe this can be a part of solution but it's really worrying how the whole discussion around this subject is proceeding. You guys are trying to railroad actual problems. Please address actual technical problems. Thanks. -- tejun -- 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