Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753524Ab1FCJQA (ORCPT ); Fri, 3 Jun 2011 05:16:00 -0400 Received: from casper.infradead.org ([85.118.1.10]:37428 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752744Ab1FCJP7 convert rfc822-to-8bit (ORCPT ); Fri, 3 Jun 2011 05:15:59 -0400 Subject: Re: [tip:sched/locking] sched: Add p->pi_lock to task_rq_lock() From: Peter Zijlstra To: Linus Torvalds Cc: Arne Jansen , mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, efault@gmx.de, npiggin@kernel.dk, akpm@linux-foundation.org, frank.rowand@am.sony.com, tglx@linutronix.de, mingo@elte.hu, linux-tip-commits@vger.kernel.org In-Reply-To: References: <20110405152729.232781355@chello.nl> <4DE64596.5010006@die-jansens.de> <1306946120.2497.606.camel@laptop> <4DE674EB.1000200@die-jansens.de> <1306951751.2497.626.camel@laptop> <1306953870.2497.627.camel@laptop> <4DE6936F.7090700@die-jansens.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Fri, 03 Jun 2011 11:15:35 +0200 Message-ID: <1307092535.2353.2973.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1151 Lines: 29 On Thu, 2011-06-02 at 06:09 +0900, Linus Torvalds wrote: > Boot-time hang - maybe due to the mis-merge that re-introduced the > infinite media change signals for ide-cd? > > I just pushed out a fix, it may not have mirrored out yet. > > I dunno. Worth checking out before spending a lot of time bisecting. Right, so that wasn't it. I haven't done a full bisect yet because I noticed it died on a usb suspend line every single time and that machine only had a single usb device, a memory stick, in it. So I simply pulled the stick and voila it booted. So something is screwy with usb suspend or something. This of course means that I'm now completely unable to reproduce the issue at hand :/ Maybe if I try another box.. Anyway, Arne, how long did you wait before power cycling the box? The NMI watchdog should trigger in about a minute or so if it will trigger at all (its enabled in your config). -- 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/