From owner-freebsd-current Sun May 3 21:08:40 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA10354 for freebsd-current-outgoing; Sun, 3 May 1998 21:08:40 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from goliath.camtech.net.au (goliath.camtech.net.au [203.5.73.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id VAA10349 for ; Sun, 3 May 1998 21:08:38 -0700 (PDT) (envelope-from thyerm@camtech.net.au) Received: from camtech.net.au (dialup-ad-5-14.camtech.net.au [203.28.0.174]) by goliath.camtech.net.au (8.8.5/8.8.2) with ESMTP id NAA10955; Mon, 4 May 1998 13:35:28 +0930 (CST) Message-ID: <354D3EE3.825EF59E@camtech.net.au> Date: Mon, 04 May 1998 13:36:59 +0930 From: Matthew Thyer X-Mailer: Mozilla 4.05 [en] (X11; U; FreeBSD 3.0-CURRENT i386) MIME-Version: 1.0 To: Jonathan Lemon CC: Andreas Braukmann , freebsd-current@FreeBSD.ORG Subject: Re: 'fatal trap 12' on boot (smp and up) References: <19980415202740.43100@paert.tse-online.de> <3536B24B.AF3DBB0D@camtech.net.au> <19980416233701.05315@right.PCS> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Is anyone working on this problem ? I like to be able to boot FreeBSD from Win95 with the icon I have (which runs fbsdboot.exe in DOS mode). However I can't do this if I have options VM86 in the kernel. Jonathan Lemon wrote: > > On Apr 04, 1998 at 11:07:15AM +0930, Matthew Thyer wrote: > > I also get the same crash if *and only if* I boot FreeBSD using > > FBSDBOOT.EXE from DOS (I have multiple OS's on my disk). > > Okay, that makes sense. The startup code tries making some INTn > calls to size memory. If DOS happens to hook the interrupt vector, > then the INTn call will try to jump to what it thinks is a DOS > routine in low memory, which fails. > > Hmm. I'm not sure what the best solution for this is. > > > The answer for me was to re-install my normal bootblock 'BootEasy' > > which had been lost when I recently re-installed Windows 95. > > That works, since it doesn't patch the real-mode interrupt vectors. > > > I found that I could successfully boot my kernel built from CTM > > src-cur 3287 sources (~Mar 22 which *does* include options VM86). > > I put the new changes in on Mar 23rd... > -- > Jonathan -- /=====================================================================\ |Work: Matthew.Thyer@dsto.defence.gov.au | Home: thyerm@camtech.net.au| \=====================================================================/ "If it is true that our Universe has a zero net value for all conserved quantities, then it may simply be a fluctuation of the vacuum of some larger space in which our Universe is imbedded. In answer to the question of why it happened, I offer the modest proposal that our Universe is simply one of those things which happen from time to time." E. P. Tryon from "Nature" Vol.246 Dec.14, 1973 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message