From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935526AbYBWK0D (ORCPT ); Sat, 23 Feb 2008 05:26:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753460AbYBWKZw (ORCPT ); Sat, 23 Feb 2008 05:25:52 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:58734 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753864AbYBWKZv (ORCPT ); Sat, 23 Feb 2008 05:25:51 -0500 Date: Sat, 23 Feb 2008 11:25:39 +0100 From: Ingo Molnar To: Arjan van de Ven Cc: Vegard Nossum , Linux Kernel Mailing List Subject: Re: [PATCH] x86: don't save unreliable stack trace entries Message-ID: <20080223102539.GK23833@elte.hu> References: <47BF17F5.4040605@gmail.com> <20080222104828.3006cd1d@laptopd505.fenrus.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080222104828.3006cd1d@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: > > b/arch/x86/kernel/stacktrace.c index 02f0f61..c28c342 100644 > > --- a/arch/x86/kernel/stacktrace.c > > +++ b/arch/x86/kernel/stacktrace.c > > @@ -25,6 +25,8 @@ static int save_stack_stack(void *data, char *name) > > static void save_stack_address(void *data, unsigned long addr, int > > reliable) { > > struct stack_trace *trace = data; > > + if (!reliable) > > + return; > > if (trace->skip > 0) { > > trace->skip--; > > return; > > @@ -37,6 +39,8 @@ static void > > save_stack_address_nosched(void *data, unsigned long addr, int > > reliable) { > > struct stack_trace *trace = (struct stack_trace *)data; > > + if (!reliable) > > + return; > > if (in_sched_functions(addr)) > > return; > > if (trace->skip > 0) { > > > I was about to make a patch for this second chunk myself and submit > it, so for the second chunk a strong: > Acked-by: Arjan van de Ven how about the first chunk? Ingo