From owner-freebsd-current@FreeBSD.ORG Tue Jul 7 10:50:45 2009 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 20F931065670 for ; Tue, 7 Jul 2009 10:50:45 +0000 (UTC) (envelope-from gavin@FreeBSD.org) Received: from mail-gw2.york.ac.uk (mail-gw2.york.ac.uk [144.32.128.247]) by mx1.freebsd.org (Postfix) with ESMTP id 915C78FC0A for ; Tue, 7 Jul 2009 10:50:44 +0000 (UTC) (envelope-from gavin@FreeBSD.org) Received: from mail-gw6.york.ac.uk (mail-gw6.york.ac.uk [144.32.129.26]) by mail-gw2.york.ac.uk (8.13.6/8.13.6) with ESMTP id n67AofrH023722; Tue, 7 Jul 2009 11:50:41 +0100 (BST) Received: from buffy-128.york.ac.uk ([144.32.128.160] helo=buffy.york.ac.uk) by mail-gw6.york.ac.uk with esmtps (TLSv1:AES256-SHA:256) (Exim 4.68) (envelope-from ) id 1MO8G1-0003yN-Mu; Tue, 07 Jul 2009 11:50:41 +0100 Received: from buffy.york.ac.uk (localhost [127.0.0.1]) by buffy.york.ac.uk (8.14.3/8.14.3) with ESMTP id n67AofDN056673; Tue, 7 Jul 2009 11:50:41 +0100 (BST) (envelope-from gavin@FreeBSD.org) Received: (from ga9@localhost) by buffy.york.ac.uk (8.14.3/8.14.3/Submit) id n67Aofnr056672; Tue, 7 Jul 2009 11:50:41 +0100 (BST) (envelope-from gavin@FreeBSD.org) X-Authentication-Warning: buffy.york.ac.uk: ga9 set sender to gavin@FreeBSD.org using -f From: Gavin Atkinson To: Gonzalo Nemmi In-Reply-To: <19e9a5dc0907062254u528c4a8ahea2a605e80b1feea@mail.gmail.com> References: <19e9a5dc0907062254u528c4a8ahea2a605e80b1feea@mail.gmail.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Tue, 07 Jul 2009 11:50:40 +0100 Message-Id: <1246963840.48637.44.camel@buffy.york.ac.uk> Mime-Version: 1.0 X-Mailer: Evolution 2.22.2 FreeBSD GNOME Team Port X-York-MailScanner: Found to be clean X-York-MailScanner-From: gavin@freebsd.org Cc: freebsd-current@FreeBSD.org Subject: Re: Fatal trap 9 on -BETA1 on boot "with ACPI disabled" or "Safe Mode": X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Tue, 07 Jul 2009 10:50:45 -0000 On Tue, 2009-07-07 at 02:54 -0300, Gonzalo Nemmi wrote: > Can reproduce it on -CURRENT-200906 and -BETA1 whenever I try to boot "with > ACPI disabled" or "Safe Mode": > > Fatal trap 9: general protection fault while in kernel mode > cpuid = 0; acpic id = 00 > instruction pointer = 0x70:0xbfe4 > stack pointer = 0x28:0xfa4 > frame pointer = 0x28:0xfd4 > code segment = base 0xc00f0000, limit 0xffff, type 0x1b > = DPL 0, pres 1, def32 0, gran 0 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 0 (swapper) > [thread pid 0 tid 100000 ] > Stopped at 0xbfe4: *** error reading from address bfe4 *** > db> bt > Tracing pid 0 tid 100000 td 0x0da9b50 > uart_z8530_class(780001,0,b0202,ffe,0,...) at 0xbfe4 > db> This may well be a known problem that has affected certain Intel motherboards since around 5.x. Although this problem may well be solvable, perhaps the better approach is to fix whatever is stopping you from booting with ACPI enabled? If for some reason you cannot have ACPI enabled, I guess knowing more output than the above would be useful. For example, when booting verbose and with ACPI disabled, what lines are printed before the above? (to do this, break to the loader prompt, and: setenv hint.acpi.0.disabled=1 setenv hint.apic.0.disabled=1 boot -v it's also worth trying just with the first one to just disable ACPI, then just trying the APIC option, to see which of those two are causing you problems) By the way, is this i386 or amd64? Gavin