From owner-freebsd-hackers  Sat Apr  1 23:08:41 1995
Return-Path: hackers-owner
Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id XAA24704 for hackers-outgoing; Sat, 1 Apr 1995 23:08:41 -0800
Received: from UUCP-GW.CC.UH.EDU (root@UUCP-GW.CC.UH.EDU [129.7.1.11]) by freefall.cdrom.com (8.6.10/8.6.6) with SMTP id XAA24698 for <hackers@freebsd.org>; Sat, 1 Apr 1995 23:08:37 -0800
Received: from Taronga.COM by UUCP-GW.CC.UH.EDU with UUCP id AA12761
  (5.67a/IDA-1.5); Sun, 2 Apr 1995 01:05:41 -0600
Received: by bonkers.taronga.com (smail2.5p) id AA24891; 2 Apr 95 01:04:54 CST (Sun)
Received: (from peter@localhost) by bonkers.taronga.com (8.6.11/8.6.6) id BAA24888; Sun, 2 Apr 1995 01:04:53 -0600
From: Peter da Silva <peter@bonkers.taronga.com>
Message-Id: <199504020704.BAA24888@bonkers.taronga.com>
Subject: Re: any interest?
To: jkh@violet.berkeley.edu (Jordan K. Hubbard)
Date: Sun, 2 Apr 1995 01:04:53 -0600 (CST)
Cc: hackers@FreeBSD.org
In-Reply-To: <199504020629.WAA24567@violet.berkeley.edu> from "Jordan K. Hubbard" at Apr 1, 95 10:29:57 pm
X-Mailer: ELM [version 2.4 PL23]
Content-Type: text
Content-Length: 283       
Sender: hackers-owner@FreeBSD.org
Precedence: bulk

> The usual way under SunOS is 'mkfile 4m /some/file'. This way
> no disk blocks are allocated until they are actually needed. 

I would worry about running out of disk space and then having
swap failing. Since you *need* to keep that space unused, you
might as well preallocate it.