Len Brown wrote:
>>> This gets my laptop flooding logs with:
> 
>>>> ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20090903/evregion-424)
>>>> ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_.GBST] (Node ffff88013f81c5e0), AE_TIME
>>>> ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_.BAT0._BST] (Node ffff88013f81c720), AE_TIME
>>>> ACPI Exception: AE_TIME, Evaluating _BST (20090903/battery-393)
> 
>> Could you do a bisect?
> 
> In particular, please try the 2.6.31 versio of drivers/acpi/ec.c
> 

Hi,

in order to get the 2.6.31 version of ec.c to build I had to apply a 
small patch:

> --- linux-acpi/drivers/acpi/ec.c.orig	2009-09-10 01:13:59.000000000 +0300
> +++ linux-acpi/drivers/acpi/ec.c	2009-09-28 21:09:15.359406828 +0300
> @@ -42,6 +42,7 @@
>  #include <asm/io.h>
>  #include <acpi/acpi_bus.h>
>  #include <acpi/acpi_drivers.h>
> +#include <linux/dmi.h>
>  
>  #define ACPI_EC_CLASS			"embedded_controller"
>  #define ACPI_EC_DEVICE_NAME		"Embedded Controller"
> @@ -1078,7 +1079,6 @@ static struct acpi_driver acpi_ec_driver
>  		.add = acpi_ec_add,
>  		.remove = acpi_ec_remove,
>  		.start = acpi_ec_start,
> -		.stop = acpi_ec_stop,
>  		.suspend = acpi_ec_suspend,
>  		.resume = acpi_ec_resume,
>  		},

After that  it built and the errors are gone.

Now this is a Acer TravelMate 5720G laptop with the latest 1.35 bios.
Distro is Mandriva Linux Cooker, and arch is x86_64

Attached is output of "grep ACPI /var/log/dmesg"
dmesg-acpi-20090903
- all acpi patches as of 2.6.32-rc1

dmesg-acpi-20090903-ec-2.6.31
- all acpi patches as of 2.6.32-rc1
- ec.c from 2.6.31.1


Should I start bisecting, or do you have any other suggestion?

--
Thomas