Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752360AbYCENm1 (ORCPT ); Wed, 5 Mar 2008 08:42:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750965AbYCENmR (ORCPT ); Wed, 5 Mar 2008 08:42:17 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:40837 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750951AbYCENmQ (ORCPT ); Wed, 5 Mar 2008 08:42:16 -0500 Date: Wed, 5 Mar 2008 14:41:50 +0100 From: Ingo Molnar To: Jan Beulich , Roland McGrath Cc: tglx@linutronix.de, hpa@zytor.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86: fix typo(?) in step.c Message-ID: <20080305134150.GA16477@elte.hu> References: <47CE69B0.76E4.0078.0@novell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47CE69B0.76E4.0078.0@novell.com> User-Agent: Mutt/1.5.17 (2007-11-01) 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: 0.0017] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 682 Lines: 19 * Jan Beulich wrote: > TIF_DEBUGCTLMSR has no meaning in the actual MSR... thanks, applied. The effect of this bug is that block-stepping is not disabled ... [~TIF_DEBUGCTLMSR masks out bit 25, while in the MSR we want to mask out bit 1] Roland - i guess this means block-stepping (a new ptrace feature in .25) is not particularly well-tested. Do you have any standalone testcases that could be run? 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/