Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753125AbZAMQui (ORCPT ); Tue, 13 Jan 2009 11:50:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753208AbZAMQu0 (ORCPT ); Tue, 13 Jan 2009 11:50:26 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:40350 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752935AbZAMQuZ (ORCPT ); Tue, 13 Jan 2009 11:50:25 -0500 Date: Tue, 13 Jan 2009 08:49:27 -0800 (PST) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Peter Zijlstra cc: Ingo Molnar , "Paul E. McKenney" , Gregory Haskins , Matthew Wilcox , Andi Kleen , Chris Mason , Andrew Morton , Linux Kernel Mailing List , linux-fsdevel , linux-btrfs , Thomas Gleixner , Nick Piggin , Peter Morreale , Sven Dietrich , Dmitry Adamushko Subject: Re: [PATCH -v9][RFC] mutex: implement adaptive spinning In-Reply-To: <1231864854.7141.8.camel@twins> Message-ID: References: <1231774622.4371.96.camel@laptop> <1231859742.442.128.camel@twins> <1231863710.7141.3.camel@twins> <1231864854.7141.8.camel@twins> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 928 Lines: 26 On Tue, 13 Jan 2009, Peter Zijlstra wrote: > > Ok, tested only 1, but that was the one I remember lockups from -- and > that seems to be good with the cmpxchg. > > Do you fancy me sending v10 or will you make that change locally? I'd like to get this in, but I'm not going to apply it in any case without way more testing. It missed the merge window, but I'm potentially willing to let it slip in - but only if there are a fair number of people willing to do numbers and some harsh testing. Preferably people who did see problems earlier, ie at a minimum Chris and Ingo under the loads they used before and saw issues with. So do a v10, and ask people to test. Linus -- 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/