Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Return-Path: Received: from hplms2.hpl.hp.com (root@hplms2.hpl.hp.com [15.0.152.33]) by napali.hpl.hp.com (8.12.1/8.12.1/Debian -5) with ESMTP id g2FDWhf7007188 for ; Fri, 15 Mar 2002 05:32:43 -0800 Received: from deimos.hpl.hp.com (deimos.hpl.hp.com [15.0.48.190]) by hplms2.hpl.hp.com (8.10.2/8.10.2 HPL-PA Hub) with ESMTP id g2FDWf209373 for ; Fri, 15 Mar 2002 05:32:42 -0800 (PST) Received: from vger.kernel.org (vger.kernel.org [12.107.208.194]) by deimos.hpl.hp.com (8.9.3 (PHNE_24419)/HPL-PA Relay) with ESMTP id FAA15002 for ; Fri, 15 Mar 2002 05:32:41 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 15 Mar 2002 08:29:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 15 Mar 2002 08:29:02 -0500 Received: from www.deepbluesolutions.co.uk ([212.18.232.186]:64268 "EHLO caramon.arm.linux.org.uk") by vger.kernel.org with ESMTP id ; Fri, 15 Mar 2002 08:28:44 -0500 Received: from [3ffe:8260:2002:1:201:2ff:fe14:8fad] (helo=flint.arm.linux.org.uk) by caramon.arm.linux.org.uk with esmtp (Exim 3.16 #1) id 16lrl8-0008OG-00; Fri, 15 Mar 2002 13:28:38 +0000 Received: from rmk by flint.arm.linux.org.uk with local (Exim 3.16 #1) id 16lrl7-0006vK-00; Fri, 15 Mar 2002 13:28:37 +0000 Message-ID: <20020315132837.D24984@flint.arm.linux.org.uk> User-Agent: Mutt/1.2.5i Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org From: Russell King Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, Linus Torvalds , Marcelo Tosatti , davej@suse.de Subject: [PATCH] 2.4 and 2.5: fix /proc/kcore Date: Fri, 15 Mar 2002 13:28:37 +0000 As mentioned on May 11 on LKML, here is a patch to fix /proc/kcore for architectures which do not have RAM located at physical address 0. I did say I'd send this on Monday, however I only got feedback from the ia64 people, and /proc/kcore is already broken on their machines anyway. (They need to fix it up; they place modules below PAGE_OFFSET, which breaks our generated ELF core header). So I've decided to send it a few days early. Please apply. --- orig/fs/proc/kcore.c Fri Mar 15 10:14:44 2002 +++ linux/fs/proc/kcore.c Fri Mar 15 11:18:21 2002 @@ -381,8 +381,13 @@ return tsz; } #endif - /* fill the remainder of the buffer from kernel VM space */ - start = (unsigned long)__va(*fpos - elf_buflen); + + /* + * Fill the remainder of the buffer from kernel VM space. + * We said in the ELF header that the data which starts + * at 'elf_buflen' is virtual address PAGE_OFFSET. --rmk + */ + start = PAGE_OFFSET + (*fpos - elf_buflen); if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen) tsz = buflen; -- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html - 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/