From owner-freebsd-hackers@FreeBSD.ORG Thu Apr 10 15:26:33 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 46D7B37B401 for ; Thu, 10 Apr 2003 15:26:33 -0700 (PDT) Received: from falcon.midgard.homeip.net (h76n3fls20o913.telia.com [213.67.148.76]) by mx1.FreeBSD.org (Postfix) with SMTP id 039A343FA3 for ; Thu, 10 Apr 2003 15:26:31 -0700 (PDT) (envelope-from ertr1013@student.uu.se) Received: (qmail 66180 invoked by uid 1001); 10 Apr 2003 22:26:28 -0000 Date: Fri, 11 Apr 2003 00:26:27 +0200 From: Erik Trulsson To: John Baldwin Message-ID: <20030410222627.GA65278@falcon.midgard.homeip.net> Mail-Followup-To: John Baldwin , Michael Elbel , freebsd-hackers@freebsd.org, Julian Stacey References: <20030410193810.GA52024@falcon.midgard.homeip.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.4i cc: Michael Elbel cc: Julian Stacey cc: freebsd-hackers@freebsd.org Subject: Re: Anyone seen 4.8-RELEASE running on a real 386 (not 486 586 etc) ? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Apr 2003 22:26:33 -0000 On Thu, Apr 10, 2003 at 04:34:58PM -0400, John Baldwin wrote: > > On 10-Apr-2003 Erik Trulsson wrote: > > On Thu, Apr 10, 2003 at 08:43:04PM +0200, Julian Stacey wrote: > >> freebsd-hackers@, > >> Anyone seen 4.8-RELEASE running on a real 386 processor (not a 486, 586 etc) ? > >> > >> I have a 386 that runs 4.7, dmesg below, both GENERIC & my own kernel; > >> But it wont boot 4.8 { either generic or my own config } compiled on my > >> other 4.8 box. I tried making with & without /etc/make.conf > >> CFLAGS = -m386 -march=i386 -msoft-float -mcpu=i386 -O -pipe > >> COPTFLAGS= -m386 -march=i386 -msoft-float -mcpu=i386 -O -pipe > >> I tried the /kernel copied from a 4.8 cdrom to hard disk (no cdrom > >> drive on the box). I tried 4.8 boot floppies (to prove its not > >> something wrong in hard disc /boot) Every 4.8 kernel crashes during boot -s. > >> > >> This 386 box is no bigger than a book, so worth persevering :-) > >> "SX 33" is written on chip, though dmesg reports "DX". > >> > >> I recall 386 support was dropped in 5.0, but presume not dropped in 4.8, > >> ( I don't see any signs in /usr/share/mk comparing 4.7 & 4.8 ) > >> The 4.8 cdrom /[A-Z]* files say i386 is still supported. > >> > >> I removed the only card in the box (a 3com ISA ethernet jumperless) - > >> it still wouldnt boot, so put ethernet card back in, as not the problem. > >> > >> I compiled a kernel with ddb, Results copied by hand as no serial for > >> remote gdb.t present > >> > >> Ideas or solutions anyone ? > >> > >> 4.8 ddb: > >> Fatal trap 1: priveleged instruction fault while in kernel mode > >> instruction pointer = 0x8:0xc02695a0 > >> stack pointewr = 0x10:0xc0379fcc > >> frame pointer = 0x10:0xc0379fcc > >> code segment = base 0x0, limit 0xfffff, type 0x1b > >> = DPL 0, pres 1, def 32 1, gran 1 > >> processor eflags = interrupt enabled, resume, IOPL = 0 > >> current process = Idle > >> interrupt mask = net tty bio cam > >> kernel: type 1 trap, code=0 > >> stopped at 0xc02695a0: invlpg 0(%ecx) > > > > Try the following patch. > > Makes my 386sx/33 work fine at least. > > (Without it I get the same panic as you do.) > > Oh my, I hope that isn't it. If so it's my fault. :( > > Hmm, can you try this patch instead? > > http://www.FreeBSD.org/~jhb/patches/4x_386.patch That patch does not work for me. The patch I posted earlier does work for me. (Reverting identcpu.c to 1.80.2.13 also works but that seems a bit ... excessive IMO.) -- Erik Trulsson ertr1013@student.uu.se