From owner-freebsd-hackers Wed Jun 28 12:32:42 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id MAA19086 for hackers-outgoing; Wed, 28 Jun 1995 12:32:42 -0700 Received: from pris.EEAP.CWRU.Edu (pris.EEAP.CWRU.Edu [129.22.56.99]) by freefall.cdrom.com (8.6.10/8.6.6) with SMTP id MAA19078 for ; Wed, 28 Jun 1995 12:32:34 -0700 Received: from marvin.EEAP.CWRU.Edu by pris.EEAP.CWRU.Edu (4.1/CWRU-1.4-snrub client) id AA04863; Wed, 28 Jun 95 15:32:38 EDT (from ljo for freebsd-hackers@freefall.cdrom.com) Message-Id: <9506281932.AA04863@pris.EEAP.CWRU.Edu> Date: Wed, 28 Jun 95 15:32:38 EDT From: L Jonas Olsson Received: by marvin.EEAP.CWRU.Edu (4.1/CWRU-1.4-snrub client) id AA01702; Wed, 28 Jun 95 15:32:30 EDT (from ljo ) To: freebsd-hackers@freefall.cdrom.com Subject: Memory Hole and VM (ISA linear frame buffer) Reply-To: ljo@po.CWRU.Edu Sender: hackers-owner@FreeBSD.org Precedence: bulk If it is simple, I'd like to use an older frame grabber (DT2851) using the "linear frame buffer" option on an Intel Plato motherboard. I'm already using this board with FreeBSD, but currently I only have 12 MB of RAM and the card occupies 512kB at 15.5MB. Now I want to have more memory and I will end with a memory map: 0 - 1 MB low RAM 1 - 15 MB extended RAM 15 - 15.5 MB nothing 15.5 - 16 MB frame buffer 16MB - 24 MB extended RAM Is there any easy way to tell FreeBSD's VM system to not use the 1MB between 15 and 16MB? Jonas