From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philip Langdale Subject: Re: =?UTF-8?Q?acpi=5Fidle=3A=20Very=20idle=20Core=20i=37=20machine=20neve?= =?UTF-8?Q?r=20enters=20C=33?= Date: Fri, 30 Apr 2010 14:35:02 -0400 Message-ID: References: <20100126084740.GA5265@jgarrett.org> <87y6jkee1b.fsf@basil.nowhere.org> <20100205160900.GA2736@jgarrett.org> <20100426194002.586fbaa5@fido5> <20100427124703.GA16706@jgarrett.org> <20100430174447.GA14889@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: Received: from usul.saidi.cx ([204.11.33.34]:47248 "EHLO usul.overt.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753890Ab0D3SgR (ORCPT ); Fri, 30 Apr 2010 14:36:17 -0400 In-Reply-To: <20100430174447.GA14889@srcf.ucam.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: Len Brown , Jeff Garrett , Andi Kleen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org On Fri, 30 Apr 2010 18:44:47 +0100, Matthew Garrett wrote: > On Fri, Apr 30, 2010 at 12:25:44PM -0400, Len Brown wrote: > >> I am hopeful that the "right thin to do" is to not look at bm-status >> and that perhaps there is a bug where we are looking at it >> "by mistake". > > https://patchwork.kernel.org/patch/58962/ - it seems to be a win. Indeed. This patch does solve the C6 problem. I'm not in a position to speak about whether there's any undesirable I/O latency, but it passes the basic sanity check. I have filed https://bugzilla.kernel.org/show_bug.cgi?id=15886 with my acpi dump - assuming that's still useful. --phil