Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755260AbYBRFGY (ORCPT ); Mon, 18 Feb 2008 00:06:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751574AbYBRFGQ (ORCPT ); Mon, 18 Feb 2008 00:06:16 -0500 Received: from mga03.intel.com ([143.182.124.21]:32673 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751305AbYBRFGP convert rfc822-to-8bit (ORCPT ); Mon, 18 Feb 2008 00:06:15 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.25,369,1199692800"; d="scan'208";a="380324303" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 8BIT Subject: RE: 2.6.25-rc2-mm1: WARNING at arch/x86/mm/ioremap.c:129 Date: Sun, 17 Feb 2008 23:58:03 -0500 Message-ID: In-Reply-To: <47B75B10.3070700@linux.intel.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: 2.6.25-rc2-mm1: WARNING at arch/x86/mm/ioremap.c:129 Thread-Index: Achw5ngO8VXljkTSRDOQojDEIPoVXgBBD06Q References: <20080216002522.9c4bd0fb.akpm@linux-foundation.org> <47B7553D.5040601@free.fr> <47B75B10.3070700@linux.intel.com> From: "Brown, Len" To: "Arjan van de Ven" , "Laurent Riffard" Cc: "Andrew Morton" , , "Stuart Bennett" X-OriginalArrivalTime: 18 Feb 2008 04:58:06.0816 (UTC) FILETIME=[D9AA4600:01C871EA] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2650 Lines: 59 >> evxfevnt-0091 [00] enable : Transition to >ACPI mode successful >> khelper used greatest stack depth: 3144 bytes left >> net_namespace: 304 bytes >> NET: Registered protocol family 16 >> ACPI: bus type pci registered >> khelper used greatest stack depth: 3032 bytes left >> PCI: PCI BIOS revision 2.10 entry at 0xf1180, last bus=1 >> PCI: Using configuration type 1 >> Setting up standard PCI resources >> evgpeblk-0956 [00] ev_create_gpe_block : GPE 00 to 0F >[_GPE] 2 regs on int 0x9 >> evgpeblk-1052 [00] ev_initialize_gpe_bloc: Found 4 Wake, >Enabled 0 Runtime GPEs in this block >> ACPI: EC: Look up EC in DSDT >> ------------[ cut here ]------------ >> WARNING: at arch/x86/mm/ioremap.c:129 __ioremap+0xc7/0x182() >> Modules linked in: >> Pid: 1, comm: swapper Not tainted 2.6.25-rc2-mm1 #40 >> [] warn_on_slowpath+0x41/0x6d >> [] ? trace_hardirqs_on+0xb/0xd >> [] ? acpi_os_release_object+0x8/0xc >> [] ? acpi_ut_delete_object_desc+0x39/0x3e >> [] ? acpi_ut_delete_internal_obj+0x2c1/0x2c9 >> [] ? trace_hardirqs_on+0xb/0xd >> [] ? trace_hardirqs_on_caller+0xdf/0x100 >> [] ? trace_hardirqs_on+0xb/0xd >> [] __ioremap+0xc7/0x182 >> [] ioremap_nocache+0xa/0xc >> [] acpi_os_map_memory+0x11/0x1a >> [] acpi_ex_system_memory_space_handler+0xd3/0x228 >> [] ? acpi_ev_address_space_dispatch+0x142/0x1a8 >> [] ? acpi_ex_system_memory_space_handler+0x0/0x228 >> [] acpi_ev_address_space_dispatch+0x167/0x1a8 >> [] acpi_ex_access_region+0x1e4/0x270 >> [] acpi_ex_field_datum_io+0x153/0x2a1 >> [] ? cache_alloc_debugcheck_after+0xe9/0x165 >> [] acpi_ex_extract_from_field+0x91/0x224 >> [] ? acpi_ex_read_data_from_field+0x163/0x1b0 >> [] acpi_ex_read_data_from_field+0x180/0x1b0 >> [] acpi_ex_resolve_node_to_value+0x1aa/0x230 >> [] acpi_ex_resolve_to_value+0x270/0x2aa >> [] acpi_ex_resolve_operands+0x24e/0x52f > >Len: This WARN_ON says that ACPI is trying to call ioremap() >on memory that the e820_table >lists as "kernel owned". Do you know why ACPI would do this? >Would ACPI get upset if >the kernel would tell it to take a hike? Depends on the BIOS -- as it is the BIOS AML that is making this request. -Len -- 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/