2.6.25-rc3: WARNING: at arch/x86/mm/ioremap.c:137

From: Phil Oester
Date: Sun Feb 24 2008 - 21:09:33 EST


Got the below on -rc3. Tried applying the "more info" patch from Arjan
(http://marc.info/?l=linux-kernel&m=120336371506283&w=2), but that just
made the warning go away.

Phil



ACPI: EC: Look up EC in DSDT
------------[ cut here ]------------
WARNING: at arch/x86/mm/ioremap.c:137 __ioremap+0xb1/0x16b()
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.25-rc3 #7
[<c01112d3>] warn_on_slowpath+0x40/0x4f
[<c01bb692>] acpi_ut_update_object_reference+0xb0/0x109
[<c01b4215>] acpi_ns_lookup+0x205/0x2ea
[<c01bc0f8>] acpi_ut_release_mutex+0x50/0x55
[<c01b54fa>] acpi_ns_get_node+0x79/0x83
[<c0213a91>] raw_pci_read+0x3d/0x45
[<c01bc1ba>] acpi_ut_acquire_mutex+0x2e/0x64
[<c01bc0f8>] acpi_ut_release_mutex+0x50/0x55
[<c01b6113>] acpi_get_parent+0x63/0x6c
[<c0213a91>] raw_pci_read+0x3d/0x45
[<c010cdde>] __ioremap+0xb1/0x16b
[<c01b2291>] acpi_ex_system_memory_space_handler+0xdd/0x210
[<c01b21b4>] acpi_ex_system_memory_space_handler+0x0/0x210
[<c01aba50>] acpi_ev_address_space_dispatch+0x127/0x168
[<c01af5e2>] acpi_ex_access_region+0x1a5/0x1b7
[<c01af6ff>] acpi_ex_field_datum_io+0x10b/0x193
[<c01b45da>] acpi_ns_search_one_scope+0x12/0x37
[<c01b46f7>] acpi_ns_search_and_enter+0xf8/0x159
[<c01af81f>] acpi_ex_extract_from_field+0x98/0x221
[<c01bbd9f>] acpi_ut_allocate_object_desc_dbg+0x29/0x58
[<c01bbde3>] acpi_ut_create_internal_object_dbg+0x15/0x67
[<c01ae268>] acpi_ex_read_data_from_field+0x108/0x136
[<c01b2f11>] acpi_ex_resolve_node_to_value+0x145/0x1c0
[<c01aedf2>] acpi_ex_resolve_to_value+0x202/0x20c
[<c01b0ceb>] acpi_ex_resolve_operands+0x1e1/0x4aa
[<c01a9471>] acpi_ds_exec_end_op+0xa7/0x3ae
[<c01b72d2>] acpi_ps_parse_loop+0x546/0x6f8
[<c01b67ab>] acpi_ps_parse_aml+0x5f/0x222
[<c01b795b>] acpi_ps_execute_method+0x10a/0x1a7
[<c01b4ed8>] acpi_ns_evaluate+0x90/0xe4
[<c01b5a31>] acpi_ns_init_one_device+0x72/0xad
[<c01b5f08>] acpi_ns_walk_namespace+0x94/0x114
[<c01b598c>] acpi_ns_initialize_devices+0x80/0xb3
[<c01b59bf>] acpi_ns_init_one_device+0x0/0xad
[<c01bae06>] acpi_initialize_objects+0x28/0x3a
[<c03182ba>] acpi_init+0x77/0x21f
[<c030c5fd>] kernel_init+0x97/0x1d1
[<c010ee27>] schedule_tail+0xe/0x39
[<c01027b2>] ret_from_fork+0x6/0x1c
[<c030c566>] kernel_init+0x0/0x1d1
[<c030c566>] kernel_init+0x0/0x1d1
[<c01033f7>] kernel_thread_helper+0x7/0x10
=======================
---[ end trace ca143223eefdc828 ]---

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