From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932267AbXCGGXa (ORCPT ); Wed, 7 Mar 2007 01:23:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932317AbXCGGXa (ORCPT ); Wed, 7 Mar 2007 01:23:30 -0500 Received: from e2.ny.us.ibm.com ([32.97.182.142]:40406 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932267AbXCGGX3 (ORCPT ); Wed, 7 Mar 2007 01:23:29 -0500 Date: Wed, 7 Mar 2007 11:53:20 +0530 From: Vivek Goyal To: "Rafael J. Wysocki" Cc: linux kernel mailing list , Pavel Machek , Andi Kleen Subject: Re: BUG() during suspend to disk (2.6.21-rc2, x86_64) Message-ID: <20070307062320.GB5469@in.ibm.com> Reply-To: vgoyal@in.ibm.com References: <20070306103247.GA11002@in.ibm.com> <200703062156.46905.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200703062156.46905.rjw@sisk.pl> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 06, 2007 at 09:56:46PM +0100, Rafael J. Wysocki wrote: > Hi, > > On Tuesday, 6 March 2007 11:32, Vivek Goyal wrote: > > Hi, > > > > I see following BUG() on serial console while hibernating on a x86_64 > > machine. I am using 2.6.21-rc2 kernel. > > I see it too. > > > BUG: at arch/x86_64/kernel/acpi/sleep.c:70 init_low_mapping() > > > > Call Trace: > > [] acpi_save_state_mem+0x70/0xd6 > > [] acpi_pm_enter+0x23/0xc1 > > [] pm_suspend_disk+0x1ac/0x228 > > [] enter_state+0x50/0x1e6 > > [] acpi_system_write_sleep+0x5c/0x79 > > [] vfs_write+0xad/0x136 > > [] sys_write+0x45/0x6e > > [] system_call+0x7e/0x83 > > Hm, it doesn't like the fact that nonboot CPUs are online at that point, but > we don't do anything to disable them. Should we? > > I think the appended patch might work. > Yes. It does work for me. Thanks Vivek