From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262411AbVAKD0O (ORCPT ); Mon, 10 Jan 2005 22:26:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262585AbVAKDZ3 (ORCPT ); Mon, 10 Jan 2005 22:25:29 -0500 Received: from gprs215-170.eurotel.cz ([160.218.215.170]:3201 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S262543AbVAKDVg (ORCPT ); Mon, 10 Jan 2005 22:21:36 -0500 Date: Tue, 11 Jan 2005 04:21:21 +0100 From: Pavel Machek To: Bernard Blackham Cc: Shaw , linux-kernel@vger.kernel.org Subject: Re: Screwy clock after apm suspend Message-ID: <20050111032121.GD4092@elf.ucw.cz> References: <7bb8b8de05010710085ea81da9@mail.gmail.com> <20050109224711.GF1353@elf.ucw.cz> <200501092328.54092.shawv@comcast.net> <20050110074422.GA17710@mussel> <20050110105759.GM1353@elf.ucw.cz> <20050110174804.GC4641@blackham.com.au> <20050111001426.GF1444@elf.ucw.cz> <20050111011611.GE4641@blackham.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050111011611.GE4641@blackham.com.au> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > If I do cli(); sleep(5 hours); sti();, system should survive that. If > > you do cli(); sleep(5 hours); sti() but fail to compensate for lost > > ticks, all sorts of funny things might happen if you are comunicating > > with someone who did not sleep. > > Then shouldn't it be fixed to compensate? > > By including suspend time in jiffies, there becomes absolutely no > way for a kernel or userspace thread to measure actual usable system > time. At least if suspend time is not counted, they can use jiffies > or xtime depending on what they want to do. Making them one and the > same gives them no choice. I do not think anyone should know about "actual usable system time". If you do cli(); sleep(5hours); sti(), you include that in jiffies, too. I do not see why swsusp should be handled differently. Pavel -- People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!