From owner-freebsd-current@FreeBSD.ORG Wed Aug 20 10:09:34 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3753D16A4BF for ; Wed, 20 Aug 2003 10:09:34 -0700 (PDT) Received: from rootlabs.com (root.org [67.118.192.226]) by mx1.FreeBSD.org (Postfix) with SMTP id DA22643FBD for ; Wed, 20 Aug 2003 10:09:33 -0700 (PDT) (envelope-from nate@rootlabs.com) Received: (qmail 20584 invoked by uid 1000); 20 Aug 2003 17:09:34 -0000 Date: Wed, 20 Aug 2003 10:09:34 -0700 (PDT) From: Nate Lawson To: Bosko Milekic Message-ID: <20030820100550.X20538@root.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: current@freebsd.org Subject: Re: 5.1, Data Corruption, Intel, Oh my! [patch] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Aug 2003 17:09:34 -0000 I haven't had time to test your patch unfortunately but just wanted to let you know of a corner case to be aware of. To suspend, ACPI maps in and identity page table (phys == virt) and switches to real mode. I'm not sure if your patches change the ability to access the first 1M or change the way such a mapping would be done, but it would be useful if you thought about this. The code is in /sys/i386/acpica/acpi_wakeup.c: acpi_sleep_machdep(). Thanks, -Nate