* Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>
> Jens reported early_ioremap messages with old ASUS board...
>
> > [ 1.507461] pci 0000:00:09.0: Firmware left e100 interrupts enabled;
> > disabling
> > [ 1.532778] early_ioremap(3fffd080, 0000005c) [0] => Pid: 1, comm:
> > swapper Not tainted 2.6.31-rc4 #36
> > [ 1.561007] Call Trace:
> > [ 1.568638] [<c136e48b>] ? printk+0x18/0x1d
> > [ 1.581734] [<c15513ff>] __early_ioremap+0x74/0x1e9
> > [ 1.596898] [<c15515aa>] early_ioremap+0x1a/0x1c
> > [ 1.611270] [<c154a187>] __acpi_map_table+0x18/0x1a
> > [ 1.626451] [<c135a7f8>] acpi_os_map_memory+0x1d/0x25
> > [ 1.642129] [<c119459c>] acpi_tb_verify_table+0x20/0x49
> > [ 1.658321] [<c1193e50>] acpi_get_table_with_size+0x53/0xa1
> > [ 1.675553] [<c1193eae>] acpi_get_table+0x10/0x15
> > [ 1.690192] [<c155cc19>] acpi_processor_init+0x23/0xab
> > [ 1.706126] [<c1001043>] do_one_initcall+0x33/0x180
> > [ 1.721279] [<c155cbf6>] ? acpi_processor_init+0x0/0xab
> > [ 1.737479] [<c106893a>] ? register_irq_proc+0xaa/0xc0
> > [ 1.753411] [<c10689b7>] ? init_irq_proc+0x67/0x80
> > [ 1.768316] [<c15405e7>] kernel_init+0x120/0x176
> > [ 1.782678] [<c15404c7>] ? kernel_init+0x0/0x176
> > [ 1.797062] [<c10038b7>] kernel_thread_helper+0x7/0x10
> > [ 1.812984] 00000080 + ffe00000
>
> that is rather later.
> acpi_gbl_permanent_mmap should be set in acpi_early_init()
> if acpi is not disabled
>
> and we have
> > [ 0.000000] ASUS P2B-DS detected: force use of acpi=ht
>
> just don't load acpi_processor_init...
>
> Reported-and-tested-by: Jens Rosenboom <jens@xxxxxxxxxxxxxxx>
> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
>
> ---
> drivers/acpi/processor_core.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> Index: linux-2.6/drivers/acpi/processor_core.c
> ===================================================================
> --- linux-2.6.orig/drivers/acpi/processor_core.c
> +++ linux-2.6/drivers/acpi/processor_core.c
> @@ -1137,6 +1137,9 @@ static int __init acpi_processor_init(vo
> {
> int result = 0;
>
> + if (acpi_disabled)
> + return 0;
> +
> memset(&errata, 0, sizeof(errata));
>
> #ifdef CONFIG_SMP
> @@ -1185,6 +1188,9 @@ out_proc:
>
> static void __exit acpi_processor_exit(void)
> {
> + if (acpi_disabled)
> + return;
> +
> acpi_processor_ppc_exit();
>
Acked-by: Ingo Molnar <mingo@xxxxxxx>
Ingo
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