From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753003AbaAQR3m (ORCPT ); Fri, 17 Jan 2014 12:29:42 -0500 Received: from avon.wwwdotorg.org ([70.85.31.133]:45840 "EHLO avon.wwwdotorg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752365AbaAQR3j (ORCPT ); Fri, 17 Jan 2014 12:29:39 -0500 Message-ID: <52D9687F.6070506@wwwdotorg.org> Date: Fri, 17 Jan 2014 10:29:35 -0700 From: Stephen Warren User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, peterz@infradead.org, tglx@linutronix.de, raistlin@linux.it, juri.lelli@gmail.com, linux-tip-commits@vger.kernel.org Subject: Re: [tip:sched/core] sched: Add new scheduler syscalls to support an extended scheduling parameters ABI References: <1383831828-15501-3-git-send-email-juri.lelli@gmail.com> In-Reply-To: X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/13/2014 08:53 AM, tip-bot for Dario Faggioli wrote: > Commit-ID: d50dde5a10f305253cbc3855307f608f8a3c5f73 > Gitweb: http://git.kernel.org/tip/d50dde5a10f305253cbc3855307f608f8a3c5f73 > Author: Dario Faggioli > AuthorDate: Thu, 7 Nov 2013 14:43:36 +0100 > Committer: Ingo Molnar > CommitDate: Mon, 13 Jan 2014 13:41:04 +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). I'm seeing a regression in next-20140116 on my system, and "git bisect" points at this patch. I noticed the fix patch "sched: Fix up scheduler syscall LTP fails", but applying that doesn't solve the problem. The symptoms are that when the system boots, I see the login prompt over the serial port OK, but after I've entered my user/password, the login process simply hangs. CTRL-C drops me back to the login prompt. Do you have any hints how I should debug this?