Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751933AbaAOI1j (ORCPT ); Wed, 15 Jan 2014 03:27:39 -0500 Received: from mail-wg0-f42.google.com ([74.125.82.42]:59040 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751512AbaAOI1g (ORCPT ); Wed, 15 Jan 2014 03:27:36 -0500 Message-ID: <52D64676.4040000@linaro.org> Date: Wed, 15 Jan 2014 09:27:34 +0100 From: Daniel Lezcano User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: raistlin@linux.it, juri.lelli@gmail.com CC: Peter Zijlstra , Ingo Molnar , Linux Kernel Mailing List Subject: [BUG] [ tip/sched/core ] System unresponsive after booting Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I use the tip/sched/core branch. After git pulling yesterday, my host is unresponsive after booting the OS. * It boots normally * It sends info to the console * The graphics does not work * The terminals show the prompt, I can enter the username but after pressing enter, it does not give the password prompt * sysrq works more or less, I can't get the process stack but it receives the command It is like no new process can be created. I have a dual Xeon processor E5325 (2 x 4 cores). After git bisecting, the following patch seems to introduce the bug. commit d50dde5a10f305253cbc3855307f608f8a3c5f73 Author: Dario Faggioli Date: Thu Nov 7 14:43:36 2013 +0100 sched: Add new scheduler syscalls to support an extended scheduling parameters ABI Add the syscalls needed for supporting scheduling algorithms with extended scheduling parameters (e.g., SCHED_DEADLINE). [ ... ] Signed-off-by: Dario Faggioli [ Rewrote to use sched_attr. ] Signed-off-by: Juri Lelli [ Removed sched_setscheduler2() for now. ] Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1383831828-15501-3-git-send-email-juri.lelli@gmail.com Signed-off-by: Ingo Molnar -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- 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/