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

From: Alexey Starikovskiy
Date: Fri Apr 10 2009 - 20:24:57 EST


Hi Alan,

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

Regards,
Alex.

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.

alan@alan-eeepc:/sys/firmware/acpi/interrupts$ grep -v "invalid" *
error: 0
ff_gbl_lock: 0 enabled
ff_pwr_btn: 0 enabled
ff_rt_clk: 0 disabled
gpe03: 0 disabled
gpe04: 0 disabled
gpe05: 0 disabled
gpe09: 0 disabled
gpe0B: 0 disabled
gpe0C: 0 disabled
gpe0D: 0 disabled
gpe0E: 0 disabled
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

Any ideas?

Thanks
Alan

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