Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755494AbYFKSj7 (ORCPT ); Wed, 11 Jun 2008 14:39:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751378AbYFKSjs (ORCPT ); Wed, 11 Jun 2008 14:39:48 -0400 Received: from an-out-0708.google.com ([209.85.132.240]:56586 "EHLO an-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751263AbYFKSjq (ORCPT ); Wed, 11 Jun 2008 14:39:46 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=WRr6RwkhlB8xUXmsPC9qVqMqDCwbVBiVUGsSJ6JrBpzSoirgrN1owMoUKcHXLt7Is+ t2Aif9TlQArQANWBawt1oO4mD6Ov19GhRUSe2WEtGCzQ8jtzEVSTE6QqlSv2cCs8mQqI UL1EkBVjxkFIyXX+24qZ/yAO5H6zmmQMrShKE= Message-ID: Date: Wed, 11 Jun 2008 18:39:45 +0000 From: "Justin Mattock" To: "Alexey Starikovskiy" Subject: Re: ACPI: EC: GPE storm detected, disabling EC GPE Cc: "Pavel Machek" , "Alexey Starikovskiy" , "Andrew Morton" , "Rafael J. Wysocki" , "Linux Kernel Mailing List" , linux-acpi@vger.kernel.org In-Reply-To: <484FA90F.3010005@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080606235526.783acc83.akpm@linux-foundation.org> <484AE148.6000204@suse.de> <20080608142106.GD4739@ucw.cz> <484FA90F.3010005@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2198 Lines: 81 On Wed, Jun 11, 2008 at 10:29 AM, Alexey Starikovskiy wrote: > Pavel Machek wrote: >> >> Hi! >> >> On Sat 2008-06-07 23:28:08, Alexey Starikovskiy wrote: >> >>> >>> Justin Mattock wrote: >>> >>>> >>>> On Sat, Jun 7, 2008 at 6:55 AM, Andrew Morton >> >> >>>> >>>> This issue just recently started, 2.6.25-rc9 and below don't give me >>>> this message. >>>> >>>> >>> >>> Yes, the problem which we are fighting here is that almost all Acer >>> notebooks come with >>> broken EC. It sends interrupts not regarding the fact that we already >>> ACKed it. >>> It comes unnoticed on almost all machines (some notice laggy keyboard, >>> because it's the same controller after all and it's busy with sending ACPI >>> interrupts and then providing same status byte over and over), but on some >>> machines keystrokes become missing, which is not tolerable (#9998). >>> >> >> But the acer workaround breaks other machines, right? >> >> > > As I know, the first workaround broke your machine, > may be you could check if it is broken now? >> >> So what about >> >> a) use dmi blacklist for acers? >> >> > > It is not only Acers. ASUS eeePC is known to be affected, some Apple > notebook too. >> >> or >> >> b) if EC storm is detected print message telling 'please pass >> ec_polled=true if you experience keyboard problems', but do nothing >> else? >> >> > > There are no reports about broken machines for 2.6.26-rc5 beside #10724, > which has same broken controller, sending same amount of stray interrupts. > If there will be report from a good machine affected by this workaround then > I will > certainly go with b) > > Thanks, > Alex. > > > FWIW: just to let you guys know over here with a Macbook Pro ATI chipset, as a small test removing the battery I did not receive this message after 5+ hours of uptime. Normally on a good run with the battery attached I get around an hour or so before this triggers. regards; -- Justin P. Mattock -- 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/