From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262574AbUHJJWi (ORCPT ); Tue, 10 Aug 2004 05:22:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263117AbUHJJWi (ORCPT ); Tue, 10 Aug 2004 05:22:38 -0400 Received: from mx1.elte.hu ([157.181.1.137]:47570 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S262574AbUHJJWa (ORCPT ); Tue, 10 Aug 2004 05:22:30 -0400 Date: Tue, 10 Aug 2004 11:22:49 +0200 From: Ingo Molnar To: Lee Revell Cc: Florian Schmidt , linux-kernel , Felipe Alfaro Solana Subject: Re: [patch] voluntary-preempt-2.6.8-rc3-O4 Message-ID: <20040810092249.GA29875@elte.hu> References: <1090832436.6936.105.camel@mindpipe> <20040726124059.GA14005@elte.hu> <20040726204720.GA26561@elte.hu> <20040729222657.GA10449@elte.hu> <20040801193043.GA20277@elte.hu> <20040809104649.GA13299@elte.hu> <20040809130558.GA17725@elte.hu> <20040809190201.64dab6ea@mango.fruits.de> <1092103522.761.2.camel@mindpipe> <20040810085849.GC26081@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040810085849.GC26081@elte.hu> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > another idea: you are running this on a C3, using CONFIG_MCYRIXIII, > correct? That is one of the rare configs that triggers X86_USE_3DNOW > and MMX ops. If 3dnow is in any way handicapped in that CPU then that > could cause trouble. Could you compile for e.g. CONFIG_M586TSC? [that > option should be fully compatible with a C3.] - this will exclude the > MMX page clearing ops. another (more remote) possibility is that the timestamp counter gets somehow messed up during MMX ops. Does the ALSA detector use the timestamp counter, or does it only use jiffies? (if it only used jiffies that would give us some robustness since it's an independent time-source.) I suspect 'music indeed skips' isnt a good enough test for this case, given that jackd starts up ... Ingo