From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754831AbYDXA1S (ORCPT ); Wed, 23 Apr 2008 20:27:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752929AbYDXA1K (ORCPT ); Wed, 23 Apr 2008 20:27:10 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:39221 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752243AbYDXA1J (ORCPT ); Wed, 23 Apr 2008 20:27:09 -0400 Date: Wed, 23 Apr 2008 17:27:10 -0700 (PDT) Message-Id: <20080423.172710.152976766.davem@davemloft.net> To: a.p.zijlstra@chello.nl Cc: mingo@elte.hu, dhaval@linux.vnet.ibm.com, vatsa@in.ibm.com, dmitry.adamushko@gmail.com, linux-kernel@vger.kernel.org, efault@gmx.de Subject: Re: [RFC][PATCH 1/2] sched: higher granularity load on 64bit systems From: David Miller In-Reply-To: <1208988476.2849.8.camel@lappy> References: <1208988476.2849.8.camel@lappy> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Zijlstra Date: Thu, 24 Apr 2008 00:07:56 +0200 > The below is an RFC because for some reason it regresses kbuild by 5% on > my machine (and more on the largesmp that are the reason for it). This causes my 64-cpu Niagara2 box to completely hang when I run "make clean" on a kernel tree after a fresh bootup. Can we just revert all of this broken code until it's sorted out? :-/ We're going on 4 days with unfixed major regressions from the scheduler tree merge, and these regressions make systems unusable. This is blocking my own work, and I'm starting to lose my patience.