Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756015AbZDQVBZ (ORCPT ); Fri, 17 Apr 2009 17:01:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754244AbZDQVBQ (ORCPT ); Fri, 17 Apr 2009 17:01:16 -0400 Received: from mu-out-0910.google.com ([209.85.134.185]:52718 "EHLO mu-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752982AbZDQVBO (ORCPT ); Fri, 17 Apr 2009 17:01:14 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=CspbC23pQQDKphU4BecA72zDXZACzySl3vwXaR/6vqqGncyIWSFw+C+uHU/m29dWbg m7+PPvz5JbnTHcGa2vWOiuCD05QKdQGyUHA007Zs7uDkzxp+Eewn7Tg2bQRrv4/FfNue sfkwUSiKsWI3k9hIFiApntE6u+SsRdugV2GD8= Message-ID: <49E8EC71.2010104@gmail.com> Date: Sat, 18 Apr 2009 00:54:09 +0400 From: Alexey Starikovskiy User-Agent: Thunderbird 2.0.0.21 (X11/20090319) MIME-Version: 1.0 To: Alan Jenkins CC: Matthew Garrett , linux-acpi@vger.kernel.org, Linux Kernel Mailing List , Kernel Testers List Subject: Re: [BISECTED] 20 ACPI interrupts per second on EEEPC 4G References: <49DF6835.9040501@tuffmail.co.uk> <49DFE345.3010109@gmail.com> <49E05F83.2090500@tuffmail.co.uk> <49E20EBA.2090708@tuffmail.co.uk> In-Reply-To: <49E20EBA.2090708@tuffmail.co.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1960 Lines: 68 Alan Jenkins wrote: > Alan Jenkins wrote: > >> 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 >> > > I did wonder whether this was due to thermal polling. So look what I > found with bisection :-). > Great! > > b1569e99c795bf83b4ddf41c4f1c42761ab7f75e is first bad commit > commit b1569e99c795bf83b4ddf41c4f1c42761ab7f75e > Author: Matthew Garrett > Date: Wed Dec 3 17:55:32 2008 +0000 > > ACPI: move thermal trip handling to generic thermal layer > > The ACPI code currently carries its own thermal trip handling, > meaning that > any other thermal implementation will need to reimplement it. Move > the code > to the generic thermal layer. > > > Regards > Alan > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/