From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263011AbVHESo6 (ORCPT ); Fri, 5 Aug 2005 14:44:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263075AbVHESow (ORCPT ); Fri, 5 Aug 2005 14:44:52 -0400 Received: from silver.veritas.com ([143.127.12.111]:44327 "EHLO silver.veritas.com") by vger.kernel.org with ESMTP id S263093AbVHESoj (ORCPT ); Fri, 5 Aug 2005 14:44:39 -0400 Date: Fri, 5 Aug 2005 19:46:24 +0100 (BST) From: Hugh Dickins X-X-Sender: hugh@goblin.wat.veritas.com To: Dominik Karall cc: Ingo Molnar , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [patch] preempt-trace.patch (mono preempt-trace) In-Reply-To: <200508051958.12853.dominik.karall@gmx.net> Message-ID: References: <20050607042931.23f8f8e0.akpm@osdl.org> <200508051626.56910.dominik.karall@gmx.net> <20050805152245.GA12650@elte.hu> <200508051958.12853.dominik.karall@gmx.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-OriginalArrivalTime: 05 Aug 2005 18:44:37.0091 (UTC) FILETIME=[BAD77B30:01C599ED] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 5 Aug 2005, Dominik Karall wrote: > On Friday 05 August 2005 17:22, Ingo Molnar wrote: > > > > please enable CONFIG_FRAME_POINTERS! > > I'm sorry, but I think I can't enable CONFIG_FRAME_POINTERS. > Depends on: DEBUG_KERNEL && (X86 && !X86_64 || CRIS || M68K || M68KNOMMU || > FRV || UML) > > Seems to be disabled for x86_64. It is disabled for x86_64, but not for any very good reason (beyond reducing the test matrix). I work with CONFIG_FRAME_POINTERS on x86_64 with no trouble, just add in the patch below, make oldconfig, choose frame pointers and rebuild). But I can't guarantee it'll actually reveal the info Ingo and all are longing to see. Hugh --- 2.6.13-rc5/lib/Kconfig.debug 2005-06-17 20:48:29.000000000 +0100 +++ linux/lib/Kconfig.debug 2005-07-29 18:40:28.000000000 +0100 @@ -151,7 +151,7 @@ config DEBUG_FS config FRAME_POINTER bool "Compile the kernel with frame pointers" - depends on DEBUG_KERNEL && ((X86 && !X86_64) || CRIS || M68K || M68KNOMMU || FRV || UML) + depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML) default y if DEBUG_INFO && UML help If you say Y here the resulting kernel image will be slightly larger