From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757450AbYAUCog (ORCPT ); Sun, 20 Jan 2008 21:44:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753236AbYAUCo2 (ORCPT ); Sun, 20 Jan 2008 21:44:28 -0500 Received: from smtp-out04.alice-dsl.net ([88.44.63.6]:17371 "EHLO smtp-out04.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753228AbYAUCo1 (ORCPT ); Sun, 20 Jan 2008 21:44:27 -0500 Date: Mon, 21 Jan 2008 03:44:22 +0100 From: Andi Kleen To: venkatesh.pallipadi@intel.com, mingo@elte.hu, tglx@linutronix.de, linux-kernel@vger.kernel.org Subject: bad page table when accessing /dev/mem in dmidecode Message-ID: <20080121024422.GA23494@basil.nowhere.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.13 (2006-08-11) X-OriginalArrivalTime: 21 Jan 2008 02:38:09.0597 (UTC) FILETIME=[A8F756D0:01C85BD6] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When booting git-x86 tip 28a0fcd6b38e247200bd857996375aee91eae8ce on a core2 system the userland running dmidecode at boot hits: config: 64bit make defconfig -Andi Failed services in runlevel 3: acpid dmidecode: Corrupted page table at address 7f74475d2000 PGD 7b583067 PUD 7b599067 PMD 7b598067 PTE ffffffff000f0025 Bad pagetable: 000d [1] SMP CPU 0 Modules linked in: Pid: 2724, comm: dmidecode Not tainted 2.6.24-rc8-g28a0fcd6 #1 RIP: 0033:[<00007f744732423f>] [<00007f744732423f>] RSP: 002b:00007fff4f5f1300 EFLAGS: 00010206 RAX: 0000000000d21010 RBX: 00007f74475d2000 RCX: 0000000000001000 RDX: 0000000000010000 RSI: 00007f74475d2000 RDI: 0000000000d21010 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f74475f1c60 R10: 0000000000000001 R11: 0000000000008000 R12: 0000000000010000 R13: 0000000000000003 R14: 0000000000010000 R15: 00000000004086c4 FS: 00007f74475e26e0(0000) GS:ffffffff80747000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f74475d2000 CR3: 000000007b4a3000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process dmidecode (pid: 2724, threadinfo ffff81007c094000, task ffff81007de917d0) RIP [<00007f744732423f>] RSP <00007fff4f5f1300> ---[ end trace f63babdc9d8f7076 ]---