Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753964AbZCRApX (ORCPT ); Tue, 17 Mar 2009 20:45:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752710AbZCRApK (ORCPT ); Tue, 17 Mar 2009 20:45:10 -0400 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:45189 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752594AbZCRApI (ORCPT ); Tue, 17 Mar 2009 20:45:08 -0400 Date: Wed, 18 Mar 2009 09:45:02 +0900 From: Yasunori Goto To: Paul Gortmaker Subject: Re: [Patch] Fix the possibility of insane return value of hpet_calibrate() against SMI. Cc: Clemens Ladisch , Linux Kernel ML , robert.picco@hp.com, venkatesh.pallipadi@intel.com, vojtech@suse.cz, mingo@redhat.com In-Reply-To: <49BFA1D7.8020302@windriver.com> References: <20090317185152.47CD.E1E9C6FF@jp.fujitsu.com> <49BFA1D7.8020302@windriver.com> X-Mailer-Plugin: BkASPil for Becky!2 Ver.2.068 Message-Id: <20090318094346.7BA9.E1E9C6FF@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50.01 [ja] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 907 Lines: 30 > >>> Each calibration of this has 1 milli second. > >>> Do you think 5 msec is too long? > >>> > >> This shouldn't matter when booting. Anyway, I think it's possible to > >> increase TICK_CALIBRATE without losing too much accuracy. > >> > > > > Hmm. If the person who is trying to reduce boot time for fastboot dislikes this impact, > > then I'll try Vojtech-san's way. > > > > That probably makes sense -- if it is extremely rare, and if you get two > values that are the same (within some small delta) then you probably > are 99.99% confident that you have the right data. Ok. I'll make it. Thanks for your comment. -- Yasunori Goto -- 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/