Still getting the 'WARNING: at arch/x86/mm/ioremap.c:137 __ioremap+0xb1/0x165()'
error in -rc5. Seen a few threads on this error, but apparently still not
resolved. Anyone need more info?
Phil
ACPI: EC: Look up EC in DSDT
------------[ cut here ]------------
WARNING: at arch/x86/mm/ioremap.c:137 __ioremap+0xb1/0x165()
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.25-rc5 #1
[<c0110dbf>] warn_on_slowpath+0x40/0x4f
[<c01bac1e>] acpi_ut_update_object_reference+0xb0/0x109
[<c01b37a1>] acpi_ns_lookup+0x205/0x2ea
[<c01bb684>] acpi_ut_release_mutex+0x50/0x55
[<c01b4a86>] acpi_ns_get_node+0x79/0x83
[<c0213089>] raw_pci_read+0x3d/0x45
[<c01bb746>] acpi_ut_acquire_mutex+0x2e/0x64
[<c01bb684>] acpi_ut_release_mutex+0x50/0x55
[<c01b569f>] acpi_get_parent+0x63/0x6c
[<c0213089>] raw_pci_read+0x3d/0x45
[<c010c88e>] __ioremap+0xb1/0x165
[<c01b181d>] acpi_ex_system_memory_space_handler+0xdd/0x210
[<c01b1740>] acpi_ex_system_memory_space_handler+0x0/0x210
[<c01aafdc>] acpi_ev_address_space_dispatch+0x127/0x168
[<c01aeb6e>] acpi_ex_access_region+0x1a5/0x1b7
[<c01aec8b>] acpi_ex_field_datum_io+0x10b/0x193
[<c01b3b66>] acpi_ns_search_one_scope+0x12/0x37
[<c01b3c83>] acpi_ns_search_and_enter+0xf8/0x159
[<c01aedab>] acpi_ex_extract_from_field+0x98/0x221
[<c01bb32b>] acpi_ut_allocate_object_desc_dbg+0x29/0x58
[<c01bb36f>] acpi_ut_create_internal_object_dbg+0x15/0x67
[<c01ad7f4>] acpi_ex_read_data_from_field+0x108/0x136
[<c01b249d>] acpi_ex_resolve_node_to_value+0x145/0x1c0
[<c01ae37e>] acpi_ex_resolve_to_value+0x202/0x20c
[<c01b0277>] acpi_ex_resolve_operands+0x1e1/0x4aa
[<c01a89fd>] acpi_ds_exec_end_op+0xa7/0x3ae
[<c01b685e>] acpi_ps_parse_loop+0x546/0x6f8
[<c01b5d37>] acpi_ps_parse_aml+0x5f/0x222
[<c01b6ee7>] acpi_ps_execute_method+0x10a/0x1a7
[<c01b4464>] acpi_ns_evaluate+0x90/0xe4
[<c01b4fbd>] acpi_ns_init_one_device+0x72/0xad
[<c01b5494>] acpi_ns_walk_namespace+0x94/0x114
[<c01b4f18>] acpi_ns_initialize_devices+0x80/0xb3
[<c01b4f4b>] acpi_ns_init_one_device+0x0/0xad
[<c01ba392>] acpi_initialize_objects+0x28/0x3a
[<c03172f9>] acpi_init+0x77/0x21f
[<c030b5fa>] kernel_init+0x97/0x1d1
[<c010e921>] schedule_tail+0xe/0x39
[<c0102772>] ret_from_fork+0x6/0x1c
[<c030b563>] kernel_init+0x0/0x1d1
[<c030b563>] kernel_init+0x0/0x1d1
[<c01033b7>] kernel_thread_helper+0x7/0x10
=======================
---[ end trace ca143223eefdc828 ]---
ACPI: Interpreter enabled
* Phil Oester <[email protected]> wrote:
> Still getting the 'WARNING: at arch/x86/mm/ioremap.c:137
> __ioremap+0xb1/0x165()' error in -rc5. Seen a few threads on this
> error, but apparently still not resolved. Anyone need more info?
the warning is harmless and will be removed in the next x86 update.
(patch is queued up in x86.git already, see below.)
Ingo
-------------->
Subject: x86: ioremap, remove WARN_ON()
From: Ingo Molnar <[email protected]>
Date: Tue Feb 26 09:30:32 CET 2008
Signed-off-by: Ingo Molnar <[email protected]>
---
arch/x86/mm/ioremap.c | 2 --
1 file changed, 2 deletions(-)
Index: linux-x86.q/arch/x86/mm/ioremap.c
===================================================================
--- linux-x86.q.orig/arch/x86/mm/ioremap.c
+++ linux-x86.q/arch/x86/mm/ioremap.c
@@ -134,8 +134,6 @@ static void __iomem *__ioremap(unsigned
return NULL;
}
- WARN_ON_ONCE(page_is_ram(pfn));
-
switch (mode) {
case IOR_MODE_UNCACHED:
default: