From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758955AbaDJTEt (ORCPT ); Thu, 10 Apr 2014 15:04:49 -0400 Received: from g4t3425.houston.hp.com ([15.201.208.53]:6007 "EHLO g4t3425.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753435AbaDJTEq (ORCPT ); Thu, 10 Apr 2014 15:04:46 -0400 Message-ID: <1397156681.2053.4.camel@j-VirtualBox> Subject: Re: 3.14.0+/x86: lockdep and mutexes not getting along From: Jason Low To: Peter Zijlstra Cc: "Kirill A. Shutemov" , "Michael L. Semon" , Ingo Molnar , linux-kernel@vger.kernel.org Date: Thu, 10 Apr 2014 12:04:41 -0700 In-Reply-To: <20140410172851.GF26782@laptop.programming.kicks-ass.net> References: <20140409121940.GA12890@node.dhcp.inet.fi> <1397108579.2586.15.camel@j-VirtualBox> <20140410091824.GL10526@twins.programming.kicks-ass.net> <1397150084.3032.4.camel@j-VirtualBox> <20140410172851.GF26782@laptop.programming.kicks-ass.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2014-04-10 at 19:28 +0200, Peter Zijlstra wrote: > On Thu, Apr 10, 2014 at 10:14:44AM -0700, Jason Low wrote: > > So one thing I noticed that is different in the current code is that in > > debug_mutex_unlock(), there is is a possibility that it does not unlock > > the mutex (when !debug_locks). May be interesting to try out this > > patch too: > > Yeah; look at a few mails down :-) I spotted it too when I woke up. Ah, I've received those mails in my inbox just now. :)