Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267552AbUIWX6t (ORCPT ); Thu, 23 Sep 2004 19:58:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267551AbUIWX6m (ORCPT ); Thu, 23 Sep 2004 19:58:42 -0400 Received: from kweetal.tue.nl ([131.155.3.6]:50182 "EHLO kweetal.tue.nl") by vger.kernel.org with ESMTP id S267552AbUIWXpZ (ORCPT ); Thu, 23 Sep 2004 19:45:25 -0400 Date: Fri, 24 Sep 2004 01:45:20 +0200 From: Andries Brouwer To: Thomas Habets Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] oom_pardon, aka don't kill my xlock Message-ID: <20040923234520.GA7303@pclin040.win.tue.nl> References: <200409230123.30858.thomas@habets.pp.se> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200409230123.30858.thomas@habets.pp.se> User-Agent: Mutt/1.4.1i X-Spam-DCC: : Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1654 Lines: 28 On Thu, Sep 23, 2004 at 01:23:08AM +0200, Thomas Habets wrote: > How about a sysctl that does "for the love of kbaek, don't ever kill these > processes when OOM. If nothing else can be killed, I'd rather you panic"? An aircraft company discovered that it was cheaper to fly its planes with less fuel on board. The planes would be lighter and use less fuel and money was saved. On rare occasions however the amount of fuel was insufficient, and the plane would crash. This problem was solved by the engineers of the company by the development of a special OOF (out-of-fuel) mechanism. In emergency cases a passenger was selected and thrown out of the plane. (When necessary, the procedure was repeated.) A large body of theory was developed and many publications were devoted to the problem of properly selecting the victim to be ejected. Should the victim be chosen at random? Or should one choose the heaviest person? Or the oldest? Should passengers pay in order not to be ejected, so that the victim would be the poorest on board? And if for example the heaviest person was chosen, should there be a special exception in case that was the pilot? Should first class passengers be exempted? Now that the OOF mechanism existed, it would be activated every now and then, and eject passengers even when there was no fuel shortage. The engineers are still studying precisely how this malfunction is caused. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/