From owner-freebsd-hackers Wed Sep 2 16:21:07 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA25318 for freebsd-hackers-outgoing; Wed, 2 Sep 1998 16:21:07 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from singapore.eecs.umich.edu (singapore.eecs.umich.edu [141.213.8.39]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA25310 for ; Wed, 2 Sep 1998 16:21:05 -0700 (PDT) (envelope-from weeteck@eecs.umich.edu) Received: (from weeteck@localhost) by singapore.eecs.umich.edu (8.8.8/8.8.7) id TAA01630 for freebsd-hackers@FreeBSD.ORG; Wed, 2 Sep 1998 19:20:00 -0400 (EDT) From: Wee Teck Ng Message-Id: <199809022320.TAA01630@singapore.eecs.umich.edu> Subject: switching to real-address mode To: freebsd-hackers@FreeBSD.ORG Date: Wed, 2 Sep 1998 19:20:00 -0400 (EDT) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG i'm trying to switch to real-address mode from protected mode in the kernel (freebsd 2.2.7), but without success. i had followed the instructions in the intel manual (p8-14 of system prog guide), but my code always hung after clearing PE flag in CR0. i would appreciate comments from anyone who have done this before. thanks wee teck To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message