Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756055AbaGVRGU (ORCPT ); Tue, 22 Jul 2014 13:06:20 -0400 Received: from terminus.zytor.com ([198.137.202.10]:57582 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752620AbaGVRGT (ORCPT ); Tue, 22 Jul 2014 13:06:19 -0400 Message-ID: <53CE99C9.30506@zytor.com> Date: Tue, 22 Jul 2014 10:05:13 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Peter Zijlstra , Bruno Wolff III CC: Dietmar Eggemann , Josh Boyer , "mingo@redhat.com" , "linux-kernel@vger.kernel.org" , Thomas Gleixner Subject: Re: Scheduler regression from caffcdd8d27ba78730d5540396ce72ad022aff2c References: <20140718141648.GE20603@laptop.programming.kicks-ass.net> <20140718145040.GG12054@laptop.lan> <20140718161602.GH12054@laptop.lan> <20140721163528.GA10433@wolff.to> <20140721165212.GO3935@laptop> <20140722094740.GJ12054@laptop.lan> <20140722103857.GK12054@laptop.lan> <20140722121001.GA30631@wolff.to> <20140722130343.GD3935@laptop> <20140722132603.GL12054@laptop.lan> <20140722133514.GM12054@laptop.lan> In-Reply-To: <20140722133514.GM12054@laptop.lan> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/22/2014 06:35 AM, Peter Zijlstra wrote: > On Tue, Jul 22, 2014 at 03:26:03PM +0200, Peter Zijlstra wrote: >> On Tue, Jul 22, 2014 at 03:03:43PM +0200, Peter Zijlstra wrote: >>> Oh, of course we do SMP detection and setup after the cache setup... >>> lovely. >>> >>> /me goes bang head against wall >> >> hpa, could we move the legacy cpuid1/cpuid4 topology detection muck up, >> preferably right after detect_extended_topology()? >> >> I need c->phys_proc_id in init_intel_cacheinfo() for machines with >> cpuid_level < 4. > > Something like so.. anything obviously broken? > Nothing *obvious*. I should stare a pass at the code. -hpa -- 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/