From owner-freebsd-hackers Mon Apr 3 8:11:58 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.49]) by hub.freebsd.org (Postfix) with ESMTP id 373F237C26E for ; Mon, 3 Apr 2000 08:11:50 -0700 (PDT) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.9.3/8.9.3) with ESMTP id JAA88209; Mon, 3 Apr 2000 09:11:48 -0600 (MDT) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id JAA61348; Mon, 3 Apr 2000 09:11:10 -0600 (MDT) Message-Id: <200004031511.JAA61348@harmony.village.org> To: Nikolai Saoukh Subject: Re: Reserving Resources Cc: freebsd-hackers@FreeBSD.ORG In-reply-to: Your message of "Mon, 03 Apr 2000 19:07:41 +0400." <20000403190741.A55382@Draculina.otdel-1.org> References: <20000403190741.A55382@Draculina.otdel-1.org> <20000403104318.A53697@Draculina.otdel-1.org> <200004022029.OAA54341@harmony.village.org> <20000403104318.A53697@Draculina.otdel-1.org> <200004031430.IAA60992@harmony.village.org> Date: Mon, 03 Apr 2000 09:11:10 -0600 From: Warner Losh Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <20000403190741.A55382@Draculina.otdel-1.org> Nikolai Saoukh writes: : On Mon, Apr 03, 2000 at 08:30:08AM -0600, Warner Losh wrote: : : > : I do not like the idea of resource consumation. Is there a : > : description of the problems which might arose without it? : > : > Machine deadlock, undetected irq conflict causing misbehavior, probing : > hardware for device foo and locking the machine because device bar is : > really there. : : Disaster can happens with legacy hardware. ;-( : What is wrong with PNP? You can't always disable PNP devices. More accurately, the devices reported by PNPBIOS are defined to be hard wired and always active. You cannot turn them off or relocate their resources. They likely should be probed first rather than last like they are now, with changes made to those drivers taht don't yet support PNP. However, since the isa bus isn't guaranteed to exist until later in the boot process, this may have some problems. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message