From owner-freebsd-stable@FreeBSD.ORG Thu Jan 31 14:53:32 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D5F7B16A418; Thu, 31 Jan 2008 14:53:32 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from angel.ticketswitch.com (angel.ticketswitch.com [IPv6:2002:57e0:1d4e::1]) by mx1.freebsd.org (Postfix) with ESMTP id 8C2C713C4F8; Thu, 31 Jan 2008 14:53:32 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from [10.50.50.2] (helo=smaug.rattatosk) by angel.ticketswitch.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.68 (FreeBSD)) (envelope-from ) id 1JKanD-000DpR-FD; Thu, 31 Jan 2008 14:53:31 +0000 Received: from dilbert.rattatosk ([10.50.50.6] helo=dilbert.ticketswitch.com) by smaug.rattatosk with esmtp (Exim 4.68 (FreeBSD)) (envelope-from ) id 1JKanD-000CMV-DK; Thu, 31 Jan 2008 14:53:31 +0000 Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.68 (FreeBSD)) (envelope-from ) id 1JKanD-00017x-AQ; Thu, 31 Jan 2008 14:53:31 +0000 To: jhb@freebsd.org In-Reply-To: <200801281625.37804.jhb@freebsd.org> Message-Id: From: Pete French Date: Thu, 31 Jan 2008 14:53:31 +0000 Cc: freebsd-stable@freebsd.org Subject: Re: panic: vm_fault: fault on nofualt entry, addr: 81423000 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Jan 2008 14:53:32 -0000 > I think the problem is that the header for the FACP table crossed a page > boundary so we had to map 2 pages to map the header, but the code assumes > only 1 page is needed so when the second page was mapped, it overlapped with > the page holding the XSDT. Here's a fix: Excellent, that fixes it on my machine! Preseumbaly this fix will also work on 6.3 which has the same problem. is it also likely to be required on amd64 - I notice there is a separate separate madt.c file for 64 it. If you want to close the PR's then they are kern/119716 and kern/117918 Now that it's booting with ACPI I can see that the box has some other issues, but will look into those when I get back to wrok (am currfenttly off sick - testing has to be done by emailing a colleague with prceise instructions, not the easiest way to debug a kernel) cheers, -pete.