Xref: utzoo comp.unix.internals:2107 comp.unix.wizards:24186
Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!slxsys!ibmpcug!robobar!stl!neil@pio.gid.co.uk
From: neil@pio.gid.co.uk (Neil Todd)
Newsgroups: comp.unix.internals,comp.unix.wizards
Subject: Re: Help with 4.3 mod to kill uninteruptable procs.
Message-ID: <4066@stl.stc.co.uk>
Date: 19 Feb 91 17:14:28 GMT
References: <1991Feb19.001941.29928@lynx.CS.ORST.EDU>
Sender: news@stl.stc.co.uk
Reply-To: "Neil Todd" <neil@pio.gid.co.uk>
Organization: GID Ltd, Upper Basildon, READING, Berks, UK
Lines: 18

In the referenced article gatesl@mist.cs.orst.edu (Lee Gates) writes:
| 
| 	As a class project, I am working on a modification to the 
| BSD 4.3 source code to allow one to kill uninteruptable processes.

(rest deleted)

A while back (~4-5 yrs) Chris Torek (I think) produced a nice little
patch to the 4.3 kernel to kill groups of run away (and rapidly
spawning) processes - this was the 'zonk' system call. You could probably
gain an insight into your problem by looking at this. The catch is that
I don't have access to the machine that I installed the patch on.

Zonk was very useful, especially on Student/teaching machines - one could
guarantee that some bright spark would experiement with self spawining
processes, zonk would kill all jobs owned by a particular UID stone dead.

Neil