From owner-freebsd-questions Fri May 3 11:32:29 2002 Delivered-To: freebsd-questions@freebsd.org Received: from ns.bsag.ch (ns.bsag.ch [62.2.201.74]) by hub.freebsd.org (Postfix) with ESMTP id 0331F37B400 for ; Fri, 3 May 2002 11:32:23 -0700 (PDT) Received: from gw.bsag.ch (root@localhost) by ns.bsag.ch with ESMTP id g43IYrx10920 for ; Fri, 3 May 2002 20:34:53 +0200 (CEST) Received: from ns.bsag.ch (bs13.bsag.ch [192.168.1.13]) by gw.bsag.ch with ESMTP id g43IYqU10911 for ; Fri, 3 May 2002 20:34:52 +0200 (CEST) Received: (from hpr@localhost) by ns.bsag.ch (8.11.3/8.11.3/SuSE Linux 8.11.1-0.5) id g43IWLk20776 for freebsd-questions@FreeBSD.ORG; Fri, 3 May 2002 20:32:21 +0200 Date: Fri, 3 May 2002 20:32:21 +0200 From: Hanspeter Roth To: freebsd-questions@FreeBSD.ORG Subject: Re: cat /dev/mem kills system under stable Message-ID: <20020503203221.A20524@bsag.ch> Reply-To: freebsd-questions@FreeBSD.ORG Mail-Followup-To: freebsd-questions@FreeBSD.ORG References: <20020502144558.26448.qmail@twinlark.arctic.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.16i In-Reply-To: <20020502144558.26448.qmail@twinlark.arctic.org>; from atk2@arctic.org on Thu, May 02, 2002 at 02:45:58PM -0000 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On May 02 at 14:45, atk2@arctic.org spoke: > Accessing /dev/mem via a read operation (aka cat /dev/mem or dd if=/dev/mem) > hangs 4.5-stable. No panic ... Do you want to cat the _whole_ /dev/mem? Maybe you read some registers of I/O-devices. Does it also hang with `dd if=/dev/mem count=10'? -Hanspeter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message