Laurent Riffard wrote: > Le 16.02.2008 09:25, Andrew Morton a écrit : >> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.25-rc2/2.6.25-rc2-mm1/ > > Got this in dmesg output: > > ------------[ 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 > [<c0118955>] warn_on_slowpath+0x41/0x6d > [<c0131d0a>] ? trace_hardirqs_on+0xb/0xd > [<c01fdd89>] ? acpi_os_release_object+0x8/0xc > [<c02188d4>] ? acpi_ut_delete_object_desc+0x39/0x3e > [<c0217f05>] ? acpi_ut_delete_internal_obj+0x2c1/0x2c9 > [<c0131d0a>] ? trace_hardirqs_on+0xb/0xd > [<c0131cde>] ? trace_hardirqs_on_caller+0xdf/0x100 > [<c0131d0a>] ? trace_hardirqs_on+0xb/0xd > [<c01129c5>] __ioremap+0xc7/0x182 > [<c0112a99>] ioremap_nocache+0xa/0xc > [<c02a6877>] acpi_os_map_memory+0x11/0x1a > [<c020b697>] acpi_ex_system_memory_space_handler+0xd3/0x228 > [<c0203bd8>] ? acpi_ev_address_space_dispatch+0x142/0x1a8 > [<c020b5c4>] ? acpi_ex_system_memory_space_handler+0x0/0x228 > [<c0203bfd>] acpi_ev_address_space_dispatch+0x167/0x1a8 > [<c02083dd>] acpi_ex_access_region+0x1e4/0x270 > [<c02085bc>] acpi_ex_field_datum_io+0x153/0x2a1 > [<c0158ac0>] ? cache_alloc_debugcheck_after+0xe9/0x165 > [<c020879b>] acpi_ex_extract_from_field+0x91/0x224 > [<c0206bcf>] ? acpi_ex_read_data_from_field+0x163/0x1b0 > [<c0206bec>] acpi_ex_read_data_from_field+0x180/0x1b0 > [<c020d256>] acpi_ex_resolve_node_to_value+0x1aa/0x230 > [<c0207a32>] acpi_ex_resolve_to_value+0x270/0x2aa > [<c0209e47>] acpi_ex_resolve_operands+0x24e/0x52f > [<c0200827>] acpi_ds_exec_end_op+0xb7/0x4f4 > [<c0212d51>] acpi_ps_parse_loop+0x5e5/0x79c > [<c02120dc>] acpi_ps_parse_aml+0xb2/0x2dd > [<c021350c>] acpi_ps_execute_method+0x13d/0x20d > [<c020fb72>] acpi_ns_evaluate+0x10e/0x1b0 > [<c02164ca>] acpi_ut_evaluate_object+0x57/0x1a1 > [<c02166ce>] acpi_ut_execute_STA+0x22/0x7b > [<c0218d61>] ? acpi_ut_release_mutex+0x85/0x8f > [<c020f45d>] acpi_ns_get_device_callback+0x5a/0x121 > [<c021173e>] acpi_ns_walk_namespace+0xfa/0x114 > [<c020f381>] acpi_get_devices+0x47/0x5d > [<c020f403>] ? acpi_ns_get_device_callback+0x0/0x121 > [<c021ce4a>] ? ec_parse_device+0x0/0x6e > [<c03a4460>] acpi_ec_ecdt_probe+0xaa/0x10a > [<c03a404b>] acpi_init+0x73/0x21e > [<c023e5bb>] ? class_create+0x4b/0x64 > [<c0390652>] kernel_init+0xa3/0x1f3 > [<c0103a4e>] ? restore_nocheck_notrace+0x0/0xe > [<c03905af>] ? kernel_init+0x0/0x1f3 > [<c03905af>] ? kernel_init+0x0/0x1f3 > [<c01045a7>] kernel_thread_helper+0x7/0x10 > ======================= > ---[ end trace 4eaa2a86a8e2da22 ]--- > > The offending code in arch/x86/mm/ioremap.c is: > 101 static void __iomem *__ioremap(unsigned long phys_addr, unsigned long > size, > 102 enum ioremap_mode mode) > 103 { > ... > 119 /* > 120 * Don't allow anybody to remap normal RAM that we're using.. > 121 */ > 122 for (pfn = phys_addr >> PAGE_SHIFT; pfn < max_pfn_mapped && > 123 (pfn << PAGE_SHIFT) < last_addr; pfn++) { > 124 if (page_is_ram(pfn) && pfn_valid(pfn) && > 125 !PageReserved(pfn_to_page(pfn))) > 126 return NULL; > 127 } > 128 > 129 WARN_ON_ONCE(page_is_ram(pfn)); > 130 > > The WARN_ON was introduced by git-agpgart.patch. > [..]
I'm getting that in mainline now on one of my older laptops also. > laurent > Gabriel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
