From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761213AbYALGbQ (ORCPT ); Sat, 12 Jan 2008 01:31:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755840AbYALGbA (ORCPT ); Sat, 12 Jan 2008 01:31:00 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:55542 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751278AbYALGa7 (ORCPT ); Sat, 12 Jan 2008 01:30:59 -0500 Date: Sat, 12 Jan 2008 07:30:37 +0100 From: Ingo Molnar To: Arjan van de Ven Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, tglx@tglx.de, hpa@zytor.com Subject: Re: [patch 0/8] Series to improve the x86 backtracing code Message-ID: <20080112063036.GA32675@elte.hu> References: <20080111212623.518e1527@laptopd505.fenrus.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080111212623.518e1527@laptopd505.fenrus.org> 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: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Arjan van de Ven wrote: > this patch series improves the x86 backtracing code in the following ways: > 1) Fix a bad bug in x86 (32 bit) FRAME_POINTER backtracing (2.6.24 material) > 2) Add the capability to mark a backtrace entry as reliable / unreliable > 3) Change the x86 (32 bit) FRAME_POINTER backtracing to use the normal backtrace but use the frames > as guidance to the reliability of the backtrace entries > 4) Patch to capture the EBP register earlier in the backtrace callchain to get a better FRAME_POINTER > based backtrace > 5) Split the x86 (64 bit) backtrace code up similar to the 32 bit code by turning a macro into a function > 6) Enable FRAME_POINTER backtracing on 64 bit similar to the 32 bit patch in number 3 > 7) Add a simple self-test module for backtraces (will move to tests/ later when that gets merged) > 8) Add the feature to x86 64bit to print a set of bytes prior to the current EIP in the Code: line > (already present in 32 bit) thanks, i've applied your new series to x86.git. (Note that i had to move around some of the changes to make the series bisectable.) Ingo