Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758363AbYC0KQS (ORCPT ); Thu, 27 Mar 2008 06:16:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754998AbYC0KQF (ORCPT ); Thu, 27 Mar 2008 06:16:05 -0400 Received: from wf-out-1314.google.com ([209.85.200.175]:53300 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756029AbYC0KQE (ORCPT ); Thu, 27 Mar 2008 06:16:04 -0400 Message-ID: <7c86c4470803270316h4588909eoa1f464108cf435f5@mail.gmail.com> Date: Thu, 27 Mar 2008 11:16:03 +0100 From: "stephane eranian" To: "Ingo Molnar" Subject: Re: [patch] x86, ptrace: support pebs in ds.c and disable ptraceand ds support Cc: "Metzger, Markus T" , ak@suse.de, hpa@zytor.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, markus.t.metzger@gmail.com, "Siddha, Suresh B" , roland@redhat.com, akpm@linux-foundation.org, mtk.manpages@gmail.com, "Villacis, Juan" In-Reply-To: <20080327095803.GB15003@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080312125318.A15510@sedona.ch.intel.com> <20080321125338.GB27245@elte.hu> <029E5BE7F699594398CA44E3DDF55444019B5025@swsmsx413.ger.corp.intel.com> <20080327095803.GB15003@elte.hu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1254 Lines: 32 Hello, What is the user-level API of utrace? Does this user interface come in addition to ptrace or as a replacement? What is the impact on existing applications, such as debuggers? On Thu, Mar 27, 2008 at 10:58 AM, Ingo Molnar wrote: > > * Metzger, Markus T wrote: > > > > we could apply this if Roland Acks it - but i guess a precondition > > > for that is to not include more ptrace extensions and to also start > > > working on utrace support for it. Ptrace is something we want to > > > reduce usage of, not extend. > > > > The patch is not adding new features. It is merely re-establishing the > > state before the patch mysteriously disappeared from x86#testing. > > well, Roland is the de-facto ptrace maintainer and he has NAK-ed the > current approach of extending ptrace, so i removed the patch. Is there > anything particularly wrong about doing this based on utrace? The API > will hit upstream in 2.6.26 or 2.6.27. > > 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/