Subject: Re: Swap overcommit (was Re: Replacement for grep(1) (part 2))
To: Matthew Dillon <>
From: Patrick Welche <>
List: tech-userlevel
Date: 07/16/1999 12:27:39
Matthew Dillon wrote:
> :On Tue, 13 Jul 1999 23:18:58 -0400 (EDT) 
> : John Baldwin <> wrote:
> :
> : > What does that have to do with overcommit?  I student administrate a undergrad
> : > CS lab at a university, and when student's programs misbehaved, they generate a
> : > fault and are killed.  The only machines that reboot on us without be
> : > explicitly told to are the NT ones, and yes we run FreeBSD.
> :
> :What does it have to do with overcommit?  Everthing in the world!
> :
> :If you have a lot of users, all of which have buggy programs which eat
> :a lot of memory, per-user swap quotas don't necessarily save your butt.
>     If every single one of your users is trying to crash your machine daily,
>     maybe you should consider throwing them off the system and finding users
>     that are less hostile.
>     This conversation is getting silly.  Do you actually believe that
>     an operating system can magically protect itself 100% from armloads of 
>     hostile users?
>     Give me a break.  You people are crazy.  If you have something worthwhile
>     to say i'll listen, but these "the sky is falling!" arguments are idiotic.
> 						-Matt

students != hostile users

Making mistakes is part of learning.