Re: Regression: 20 ACPI interrupts per second on EEEPC 4G

Alan Jenkins
2009-04-11T09:10:29Z

Alexey Starikovskiy wrote:
> Alan Jenkins wrote:
>> On latest git, powertop shows 20 ACPI interrupts per second.
>> Previously, this was closer to 1 per second. See attached output (a
>> vs b, "a" is from 2.6.29-rc8).
>>
>> This is from a pretty sparse KDE desktop. Normally I run
>> gnome-power-manager, but I killed it to make sure that wasn't causing
>> any problems.
>>

>> gpe18: 60975 enabled
>> gpe_all: 60975
>> sci: 60975
>>
>> which I presume means lots of EC interrupts.
>>
>> [ 0.134068] ACPI: EC: GPE = 0x18, I/O: command/status = 0x66, data
>> = 0x62
>>

> This patch looks to be a suspect:
> 34ff4dbccccce54c83b1234d39b7ad9e548a75dd,
> Please check if reversing it helps

No, I still get 20 ACPI interrupts per second.

I tried without powertop, just in case that was provoking it, but it
still happens:

alan@alan-eeepc:/sys/firmware/acpi/interrupts$ cat sci; sleep 5; cat sci
2583
2680

Thanks
Alan