From owner-freebsd-hackers@FreeBSD.ORG Fri Oct 3 14:36:49 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 E3AA616A4B3 for ; Fri, 3 Oct 2003 14:36:49 -0700 (PDT) Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 50DA443FE0 for ; Fri, 3 Oct 2003 14:36:48 -0700 (PDT) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de (cicely5.cicely.de [IPv6:3ffe:400:8d0:301:200:92ff:fe9b:20e7]) (authenticated bits=0) h93LaWFs080188 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Fri, 3 Oct 2003 23:36:41 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [IPv6:3ffe:400:8d0:301::12]) by cicely5.cicely.de (8.12.10/8.12.10) with ESMTP id h93LaUWZ018992 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 3 Oct 2003 23:36:30 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.12.10/8.12.10) with ESMTP id h93LaT2u005208; Fri, 3 Oct 2003 23:36:29 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.12.10/8.12.10/Submit) id h93LaTVB005207; Fri, 3 Oct 2003 23:36:29 +0200 (CEST) (envelope-from ticso) Date: Fri, 3 Oct 2003 23:36:29 +0200 From: Bernd Walter To: "Christoph P. Kukulies" Message-ID: <20031003213628.GN886@cicely12.cicely.de> References: <200310031821.h93ILSVI001295@www.kukulies.org> <20031003201507.GK886@cicely12.cicely.de> <20031003212334.GA2076@gilberto.physik.rwth-aachen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031003212334.GA2076@gilberto.physik.rwth-aachen.de> X-Operating-System: FreeBSD cicely12.cicely.de 5.1-CURRENT alpha User-Agent: Mutt/1.5.4i cc: "C. Kukulies" cc: hackers@freebsd.org cc: ticso@cicely.de Subject: Re: total hang when cu -l /dev/cuaa0 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: ticso@cicely.de List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 03 Oct 2003 21:36:50 -0000 On Fri, Oct 03, 2003 at 11:23:34PM +0200, Christoph P. Kukulies wrote: > On Fri, Oct 03, 2003 at 10:15:08PM +0200, Bernd Walter wrote: > > On Fri, Oct 03, 2003 at 08:21:28PM +0200, C. Kukulies wrote: > > > > > > > > > I have disabled the SIO on my ASUS P4SX board because I have a PCI modem > > > card inserted. But the modem card or the sio on it doesn't seem to be detected > > > by the kernel. Instead I see two sios (sio0 and sio1) which are flagged > > > as possibly disabled (?) - why are they seen when I disabled them in the BIOS? > > > > PCI serials shouldn't collide with legacy ones - PCI has different IO > > Space. > > Many boards don't disable interfaces completely - I wouldn't be suprised > > if just the irq was dropped. > > You need a different driver for your PCI one - e.g. puc. > > The modem coild also be something proprietary for which there is no > > driver available. > > > > > When I run getty (or mgetty) on that port or when I do a cu -l /dev/cuaa0 > > > the system freezes. > > > > Why do you expect anything usefull by accessing half working hardware? > > Well, I would expect an I/O error or no such device. Wouldn't that be > at least a minimum one could expect? But a crash or hand? No. > one could expect? But a crash or hand? No. You can't expect anything reliable from a device which is broken. The kernel already warned you that something seems to be questionable. In the same way you can't expect getting an IO error if someone cuts into your computer with a chainsaw - you may get one, but nobody can predict. -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de