Subject: Re: Swap overcommit (was Re: Replacement for grep(1) (part 2))
To: Matthew Dillon <dillon@apollo.backplane.com>
From: Patrick Welche <prlw1@newn.cam.ac.uk>
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 <jobaldwi@vt.edu> 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.
Patrick