From owner-freebsd-multimedia Fri Mar 21 13:45:24 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id NAA15261 for multimedia-outgoing; Fri, 21 Mar 1997 13:45:24 -0800 (PST) Received: from Ilsa.StevesCafe.com (sc-gw.StevesCafe.com [205.168.119.191]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id NAA15232 for ; Fri, 21 Mar 1997 13:44:53 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by Ilsa.StevesCafe.com (8.7.5/8.6.12) with SMTP id OAA25231; Fri, 21 Mar 1997 14:43:38 -0700 (MST) Message-Id: <199703212143.OAA25231@Ilsa.StevesCafe.com> X-Authentication-Warning: Ilsa.StevesCafe.com: Host localhost [127.0.0.1] didn't use HELO protocol X-Mailer: exmh version 1.6.5 12/11/95 From: Steve Passe To: Amancio Hasty cc: "Louis A. Mamakos" , Steve Passe , Michael Petry , multimedia@freebsd.org Subject: Re: Continquous Memory vs Virtual Memory In-reply-to: Your message of "Fri, 21 Mar 1997 13:37:26 PST." <199703212137.NAA01992@rah.star-gate.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 21 Mar 1997 14:43:38 -0700 Sender: owner-multimedia@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi, > The current "risc" programs in the bt848 driver makes it difficult for > people to screw up their systems . Granted , the PCI to PCI scheme > still leaves a nice way for someone to pass an illegal address; are there security issues here, ie could some clever programmer write to the kernel/other program space by cleverly building a RISC program with the address of memory other than the expected target video card? -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD