From owner-freebsd-hackers@FreeBSD.ORG Sun Jul 27 22:40:41 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 01D7D1065671 for ; Sun, 27 Jul 2008 22:40:41 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: from wr-out-0506.google.com (wr-out-0506.google.com [64.233.184.232]) by mx1.freebsd.org (Postfix) with ESMTP id A47F58FC14 for ; Sun, 27 Jul 2008 22:40:40 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: by wr-out-0506.google.com with SMTP id c8so3325245wra.27 for ; Sun, 27 Jul 2008 15:40:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:in-reply-to:mime-version:content-type:references; bh=VQnr5Qy116Lc1GImy7OPmZooRvDQT4W4gFGudEaQ7mA=; b=IKTRkqT6BE5plP0qSssqicWLZvTLAZO1+vEt1ouit4WvqZmb/PjV/Ri1SnygiY/FXD oag91eNFpXIjAZq15IjybE6B4QvYEBgqoeEuXpVFuyqPjM0fDvQnfOWnVe9iDt7GP6IE aS8R8CAXei7KRLHL2/ou8a26bjPjpw/GAUaxU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version :content-type:references; b=G0GBGZU7zBpQ8U//h6vG/AGWSJtxjbiVuwe22OUMLmeyUYzEYgHmahhhQ1mNOtrkgd DXrZDd+AaVy6V9ep3bEndGe2FZfsOg6xpiNiMvcFjx8c52mrCpAfHLElDF3TujVfbHF5 0s8OvldUcgtJzICR31Mumcc2f0qFp28OI6knY= Received: by 10.90.52.1 with SMTP id z1mr2706535agz.98.1217198439557; Sun, 27 Jul 2008 15:40:39 -0700 (PDT) Received: by 10.150.12.12 with HTTP; Sun, 27 Jul 2008 15:40:39 -0700 (PDT) Message-ID: <5f67a8c40807271540m3e1354d8s4e8d10e7f101afac@mail.gmail.com> Date: Sun, 27 Jul 2008 18:40:39 -0400 From: "Zaphod Beeblebrox" To: freebsd-hackers@freebsd.org In-Reply-To: <20080727214330.GA1694@britannica.bec.de> MIME-Version: 1.0 References: <1216910072.2251.8.camel@jill.exit.com> <200807251802.23984.lists@jnielsen.net> <1217120187.37762.7.camel@jill.exit.com> <5f67a8c40807271423t3dc1e89bn7295b9af9fa0eda5@mail.gmail.com> <20080727214330.GA1694@britannica.bec.de> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Re: Laptop suggestions? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Jul 2008 22:40:41 -0000 On Sun, Jul 27, 2008 at 5:43 PM, Joerg Sonnenberger wrote: > On Sun, Jul 27, 2008 at 05:23:46PM -0400, Zaphod Beeblebrox wrote: > > That said, an OS-level suspend-to-disk would be an awesome summer-of-code > > project. > > I don't think it is feasible as SoC project without previous knowledge > and interaction with at least the ACPI suspend-to-RAM code (or > alternative the low-level boot code) and VM knowledge (both MI and MD). > I believe it can be done in 3 month though. Actually, the point I was tryinng to make is that the os implemented suspend-to-disk doesn't need any knowledge of ACPI or any other dependancies. VM knowledge, yes. Some inventive design for (re) opening file handles and other system resources... but the mess that is ACPI doesn't seem to be needed for this.