From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932936Ab0E0Iw4 (ORCPT ); Thu, 27 May 2010 04:52:56 -0400 Received: from cantor2.suse.de ([195.135.220.15]:41791 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752061Ab0E0Iwy (ORCPT ); Thu, 27 May 2010 04:52:54 -0400 From: Thomas Renninger Organization: SUSE Products GmbH To: linux-pm@lists.linux-foundation.org Subject: Re: [linux-pm] [PATCH 8/8] intel_idle: create a native cpuidle driver for select intel processors Date: Thu, 27 May 2010 10:53:30 +0200 User-Agent: KMail/1.13.3 (Linux/2.6.31.5-0.1-desktop; KDE/4.4.3; x86_64; ; ) Cc: Len Brown , x86@kernel.org, Len Brown , linux-kernel@vger.kernel.org, sfr@canb.auug.org.au References: <1274928151-30919-1-git-send-email-lenb@kernel.org> <198450ec1600d9a7f55270dd4d44d6b55bc5b184.1274926772.git.len.brown@intel.com> In-Reply-To: <198450ec1600d9a7f55270dd4d44d6b55bc5b184.1274926772.git.len.brown@intel.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201005271053.31087.trenn@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 27 May 2010 04:42:31 Len Brown wrote: > From: Len Brown ... > CONFIG_INTEL_IDLE=m is not recommended unless the system > has a method to guarantee intel_idle loads before ACPI's > processor_idle. Then it should better be declared bool instead of tristate until it works. > This driver does not yet know about cpu online/offline > and thus will not yet play well with cpu-hotplug. What means does not play well yet, suspend or manually offlining a core will eventually (for sure?) hang the machine? If this is known broken, should this already be spread through linux-next? Thomas