From owner-freebsd-hackers Tue Jun 20 16: 6:11 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from sr14.nsw-remote.bigpond.net.au (sr14.nsw-remote.bigpond.net.au [24.192.3.29]) by hub.freebsd.org (Postfix) with ESMTP id 36A9A37B5DB for ; Tue, 20 Jun 2000 16:06:04 -0700 (PDT) (envelope-from areilly@nsw.bigpond.net.au) Received: from areilly.bpc-users.org (CPE-144-132-171-71.nsw.bigpond.net.au [144.132.171.71]) by sr14.nsw-remote.bigpond.net.au (Pro-8.9.3/8.9.3) with SMTP id JAA09637 for ; Wed, 21 Jun 2000 09:06:00 +1000 (EST) Received: (qmail 59205 invoked by uid 1000); 20 Jun 2000 23:05:50 -0000 From: "Andrew Reilly" Date: Wed, 21 Jun 2000 09:05:50 +1000 To: Warner Losh Cc: Bjoern Fischer , Mitsuru IWASAKI , acpi-jp@jp.freebsd.org, dcs@newsguy.com, freebsd-current@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG Subject: Re: ACPI project progress report Message-ID: <20000621090550.A51097@gurney.reilly.home> References: <20000619070144.B554@broccoli.no-support.loc> <20000617002156A.iwasaki@jp.FreeBSD.org> <394AAE60.B6F0EE2A@newsguy.com> <394AB05C.569DD4DD@newsguy.com> <20000617135611E.iwasaki@jp.FreeBSD.org> <20000619070144.B554@broccoli.no-support.loc> <200006201847.MAA70919@harmony.village.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <200006201847.MAA70919@harmony.village.org>; from imp@village.org on Tue, Jun 20, 2000 at 12:47:38PM -0600 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Jun 20, 2000 at 12:47:38PM -0600, Warner Losh wrote: > In message <20000619070144.B554@broccoli.no-support.loc> Bjoern Fischer writes: > : Just a moment. You talk about doing a `Save-to-Disk' (incl. system halt), > : turning power off, maybe adding some hardware or moving the machine > : to another location, then switching on again, restoring the system context, > : and the machine will proceed as if nothing had happened, do you? > > The S4 sleep state of ACPI doesn't support changing the hardware > configuration while you are in that state. That would probably explain why W'98 gets confused when you _do_ change the hardware configuration while in suspend state. Pretty silly state to get into, then, if hardware like floppy drives are easy to add or remove, and the box looks as though it's off... Any good theories about how to avoid this problem? Avoid S4 and go all the way to shutdown, with a flag set on the boot disk? -- Andrew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message