On Thu, May 30, 2013 at 9:36 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> On Thursday, May 30, 2013 04:45:35 PM Rafael J. Wysocki wrote:
>> On Thursday, May 30, 2013 04:34:51 PM Rafael J. Wysocki wrote:
> [...]
>> >
>> > I'll try to dig deeper locally in the meantime.
>>
>> Actually, I think I know what the problem is, but I need some more time to
>> debug it. Fortunately, I'm able to see some symptoms. :-)
>
> OK, one fix is appended, but there still is one more bug I need to investigate.
>
> Please check if this one helps, though.
yes, that fix the problem.
>
> Thanks,
> Rafael
>
>
> ---
> drivers/acpi/acpi_processor.c | 5 +++++
> drivers/acpi/processor_driver.c | 3 ---
> 2 files changed, 5 insertions(+), 3 deletions(-)
>
> Index: linux-pm/drivers/acpi/processor_driver.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/processor_driver.c
> +++ linux-pm/drivers/acpi/processor_driver.c
> @@ -78,9 +78,6 @@ static struct device_driver acpi_process
> .remove = acpi_processor_stop,
> };
>
> -DEFINE_PER_CPU(struct acpi_processor *, processors);
> -EXPORT_PER_CPU_SYMBOL(processors);
> -
> static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
> {
> struct acpi_device *device = data;
> Index: linux-pm/drivers/acpi/acpi_processor.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/acpi_processor.c
> +++ linux-pm/drivers/acpi/acpi_processor.c
> @@ -29,6 +29,9 @@
>
> ACPI_MODULE_NAME("processor");
>
> +DEFINE_PER_CPU(struct acpi_processor *, processors);
> +EXPORT_PER_CPU_SYMBOL(processors);
> +
> /* --------------------------------------------------------------------------
> Errata Handling
> -------------------------------------------------------------------------- */
> @@ -387,6 +390,7 @@ static int __cpuinit acpi_processor_add(
> * checks.
> */
> per_cpu(processor_device_array, pr->id) = device;
> + per_cpu(processors, pr->id) = pr;
>
> dev = get_cpu_device(pr->id);
> result = acpi_bind_one(dev, pr->handle);
> @@ -406,6 +410,7 @@ static int __cpuinit acpi_processor_add(
> err:
> free_cpumask_var(pr->throttling.shared_cpu_map);
> device->driver_data = NULL;
> + per_cpu(processors, pr->id) = NULL;
> err_free_pr:
> kfree(pr);
> return result;
>
do you need to remove
per_cpu(processors, pr->id) = NULL;
from processor_driver.c::acpi_processor_stop ?
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