From owner-freebsd-hackers  Wed Dec 18 01:37:30 1996
Return-Path: <owner-hackers>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.4/8.8.4) id BAA26144
          for hackers-outgoing; Wed, 18 Dec 1996 01:37:30 -0800 (PST)
Received: from rah.star-gate.com ([204.188.121.18])
          by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id BAA26127;
          Wed, 18 Dec 1996 01:37:25 -0800 (PST)
Received: from rah.star-gate.com (localhost.star-gate.com [127.0.0.1]) by rah.star-gate.com (8.7.6/8.7.3) with ESMTP id BAA03625; Wed, 18 Dec 1996 01:37:12 -0800 (PST)
Message-Id: <199612180937.BAA03625@rah.star-gate.com>
X-Mailer: exmh version 1.6.9 8/22/96
To: hackers@freebsd.org
cc: multimedia@freebsd.org
Subject: mmap problems?
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Wed, 18 Dec 1996 01:37:12 -0800
From: Amancio Hasty <hasty@rah.star-gate.com>
Sender: owner-hackers@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk



I have an old program "tv" which used to work okay. 

  frame_size = 38896;
        if ((video = open("/dev/meteor0", O_RDONLY)) < 0) {
                fprintf(stderr, "open failed: %s\n", strerror(errno));
                exit(1);
        }

After running the program several times, tv exits with a a memory access
violation. It  looks like the system is not
giving me access to the last page of the frame buffer. Any hints?


	Tnks
	Amancio