From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751826Ab2LORn5 (ORCPT ); Sat, 15 Dec 2012 12:43:57 -0500 Received: from mail-ob0-f174.google.com ([209.85.214.174]:50884 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750795Ab2LORn4 convert rfc822-to-8bit (ORCPT ); Sat, 15 Dec 2012 12:43:56 -0500 Date: Sat, 15 Dec 2012 11:43:52 -0600 From: Rob Landley Subject: Panic at shutdown in x86-64 3.7 kernel under qemu 1.3.0? To: linux-kernel@vger.kernel.org, qemu-devel@nongnu.org X-Mailer: Balsa 2.4.11 Message-Id: <1355593432.24099.7@driftwood> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; DelSp=Yes; Format=Flowed Content-Disposition: inline Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Reasonably vanilla versions of both just did this. No idea why. Just did it the once, haven't gotten it to reproduce... Rob Restarting system. reboot: machine restart general protection fault: fff2 [#1] CPU 0 Pid: 8542, comm: oneit Not tainted 3.7.0 #1 Bochs Bochs RIP: 0010:[] [] lapic_shutdown+0x29/0x2b RSP: 0018:ffff88000fb57e28 EFLAGS: 00000202 RAX: ffffffff8130e2d0 RBX: 0000000000000202 RCX: 0000000000000000 RDX: ffffffff81322a40 RSI: 00000000000000ff RDI: 00000000000000f0 RBP: 0000000028121969 R08: ffff88000fb57fd8 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff81015721 R12: 00000000fee1dead R13: 0000000000000000 R14: 0000000000000004 R15: 0000000000425e02 FS: 0000000000000000(0000) GS:ffffffff81304000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000440f11 CR3: 000000000fb53000 CR4: 00000000000006b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000 Process oneit (pid: 8542, threadinfo ffff88000fb56000, task ffff88000e848f90) Stack: 0000000001234567 ffffffff810136cb 0000000028121969 ffffffff810136a8 0000000001234567 ffffffff8102b451 0000000000000011 0000000000040001 0000000000000023 0000000000000000 0000000000000006 00000001802a0027 Call Trace: [] ? native_machine_shutdown+0x9/0x1e [] ? native_machine_restart+0x20/0x29 [] ? sys_reboot+0x11f/0x14a [] ? __kill_pgrp_info+0x37/0x5f [] ? do_exit+0x61f/0x623 [] ? schedule_tail+0x20/0x46 [] ? ret_from_fork+0xf/0xb0 [] ? system_call_fastpath+0x16/0x1b Code: c8 c3 48 8b 05 8a cc 31 00 53 f6 c4 02 75 12 83 3d c9 da 38 00 00 74 13 83 3d d8 ea 38 00 00 75 0a 9c 5b fa e8 3a ff ff ff 53 9d <5b> c3 48 83 ec 08 eb 02 f3 90 48 8b 05 eb db 31 00 bf 00 03 00 RIP [] lapic_shutdown+0x29/0x2b RSP ---[ end trace 0c69c9c16377bd9d ]