Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758617AbZATSkY (ORCPT ); Tue, 20 Jan 2009 13:40:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753227AbZATSkG (ORCPT ); Tue, 20 Jan 2009 13:40:06 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:44695 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752958AbZATSkF (ORCPT ); Tue, 20 Jan 2009 13:40:05 -0500 Date: Tue, 20 Jan 2009 19:39:30 +0100 From: Ingo Molnar To: Steven Rostedt Cc: Kevin Shanahan , Avi Kivity , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List , Kevin Shanahan , Mike Galbraith , Peter Zijlstra , =?iso-8859-1?Q?Fr=E9d=E9ric?= Weisbecker Subject: Re: [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Message-ID: <20090120183930.GA5048@elte.hu> References: <1232410363.4768.21.camel@kulgan.wumi.org.au> <20090120113546.GA26571@elte.hu> <1232455343.4895.4.camel@kulgan.wumi.org.au> <20090120125652.GA1457@elte.hu> <20090120130714.GA11048@elte.hu> <20090120150408.GD21931@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0008] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 693 Lines: 18 * Steven Rostedt wrote: > > hm, that's a significant regression then. The latency tracer used to > > measure the highest-prio task in the system - be that RT or non-rt. > > Well, it is a regression from what was in -rt yes. But not from what > ever was in mainline. indeed, it is not a regression, it is worse: it makes the mainline version utterly useless in 99% of the cases ... This really needs to be fixed. Ingo -- 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/