From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [PATCH RFC - TAKE TWO - 00/12] New version of the BFQ I/O Scheduler Date: Wed, 4 Jun 2014 11:08:56 +0200 Message-ID: <20140604090856.GA1196@amd.pavel.ucw.cz> References: <20140528221929.GG1419@htj.dyndns.org> <1401354343-5527-1-git-send-email-paolo.valente@unimore.it> <20140530160712.GG24871@htj.dyndns.org> <464F6CBE-A63E-46EF-A90D-BF8450430444@unimore.it> <20140530232804.GA5057@htj.dyndns.org> <20140602111432.GA3737@amd.pavel.ucw.cz> <20140602130226.GA14654@amd.pavel.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Paolo Valente Cc: Jens Axboe , containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Fabio Checconi , Arianna Avanzini , Tejun Heo , cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: containers.vger.kernel.org Hi! > Should this attempt be useless as well, I will, if you do not mind, >try by asking you more details about your system and reproducing your >configuration as much as I can. It fails during boot or shortly after that when clicking in gnome2 desktop. I had BFQ as a default scheduler. Now I set CFQ as a default and it boots (as expected). root@duo:~# cat /sys/block/sda/queue/scheduler noop deadline [cfq] bfq root@duo:~# echo bfq > /sys/block/sda/queue/scheduler root@duo:~# dmesg | grep WARN WARNING: CPU: 1 PID: 1 at net/wireless/reg.c:479 regulatory_init+0x88/0xf5() root@duo:~# Hmm, and I seem to have pretty much functional system. I'll try to do some benchmarks now. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751606AbaFDJJB (ORCPT ); Wed, 4 Jun 2014 05:09:01 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:57806 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750997AbaFDJI7 (ORCPT ); Wed, 4 Jun 2014 05:08:59 -0400 Date: Wed, 4 Jun 2014 11:08:56 +0200 From: Pavel Machek To: Paolo Valente Cc: Tejun Heo , Jens Axboe , Li Zefan , Fabio Checconi , Arianna Avanzini , linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, cgroups@vger.kernel.org Subject: Re: [PATCH RFC - TAKE TWO - 00/12] New version of the BFQ I/O Scheduler Message-ID: <20140604090856.GA1196@amd.pavel.ucw.cz> References: <20140528221929.GG1419@htj.dyndns.org> <1401354343-5527-1-git-send-email-paolo.valente@unimore.it> <20140530160712.GG24871@htj.dyndns.org> <464F6CBE-A63E-46EF-A90D-BF8450430444@unimore.it> <20140530232804.GA5057@htj.dyndns.org> <20140602111432.GA3737@amd.pavel.ucw.cz> <20140602130226.GA14654@amd.pavel.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! > Should this attempt be useless as well, I will, if you do not mind, >try by asking you more details about your system and reproducing your >configuration as much as I can. It fails during boot or shortly after that when clicking in gnome2 desktop. I had BFQ as a default scheduler. Now I set CFQ as a default and it boots (as expected). root@duo:~# cat /sys/block/sda/queue/scheduler noop deadline [cfq] bfq root@duo:~# echo bfq > /sys/block/sda/queue/scheduler root@duo:~# dmesg | grep WARN WARNING: CPU: 1 PID: 1 at net/wireless/reg.c:479 regulatory_init+0x88/0xf5() root@duo:~# Hmm, and I seem to have pretty much functional system. I'll try to do some benchmarks now. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html