Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754553Ab0A0LVL (ORCPT ); Wed, 27 Jan 2010 06:21:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754508Ab0A0LVJ (ORCPT ); Wed, 27 Jan 2010 06:21:09 -0500 Received: from e38.co.us.ibm.com ([32.97.110.159]:60821 "EHLO e38.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754357Ab0A0LVI (ORCPT ); Wed, 27 Jan 2010 06:21:08 -0500 Date: Wed, 27 Jan 2010 16:50:55 +0530 From: Ananth N Mavinakayanahalli To: Peter Zijlstra Cc: Linus Torvalds , Stephen Rothwell , Kyle Moffett , Arnaldo Carvalho de Melo , Fr??d??ric Weisbecker , Oleg Nesterov , Steven Rostedt , LKML , Tom Tromey , "Frank Ch. Eigler" , linux-next@vger.kernel.org, "H. Peter Anvin" , utrace-devel@redhat.com, Thomas Gleixner , avi@redhat.com Subject: Re: linux-next: add utrace tree Message-ID: <20100127112055.GA14289@in.ibm.com> Reply-To: ananth@in.ibm.com References: <1264575134.4283.1983.camel@laptop> <1264589716.4283.2006.camel@laptop> <20100127110555.GB1842@in.ibm.com> <1264590511.4283.2009.camel@laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1264590511.4283.2009.camel@laptop> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 801 Lines: 20 On Wed, Jan 27, 2010 at 12:08:31PM +0100, Peter Zijlstra wrote: > On Wed, 2010-01-27 at 16:35 +0530, Ananth N Mavinakayanahalli wrote: > > Probing RIP-relative instructions work just fine; there are fixups that > > take care of it. > > Ah my bad then, it was my understanding you simply bailed on those. > > Just for my information, how large are the replacement sequences? The RIP relative instruction is transformed into indirect addressing mode using a scratch register. For details http://marc.info/?l=linux-kernel&m=126401936114639&w=2. Ananth -- 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/