Date: Mon, 17 Mar 2003 06:47:28 +0200 (EET) From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: Mike Silbersack <silby@silby.com> Cc: src-committers@freebsd.org, cvs-src@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/vm ... SIGDANGER Message-ID: <20030317064452.L38829@gothmog> In-Reply-To: <20030314160313.O4480@odysseus.silby.com> References: <8023.1047662161@critter.freebsd.dk> <p05200f2bba97e5a92150@[128.113.24.47]> <20030314140414.V4480@odysseus.silby.com> <p05200f2cba97ef395f0e@[128.113.24.47]> <20030314152510.A4480@odysseus.silby.com> <p05200f2eba97fc3b6b96@[128.113.24.47]> <20030314160313.O4480@odysseus.silby.com>
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On 2003-03-14 16:07, Mike Silbersack wrote: >On Fri, 14 Mar 2003, Garance A Drosihn wrote: >> Almost all of the suggestions that have come forward are good >> ideas to do *in addition* to SIGDANGER, but SIGDANGER provides >> a program with a way to SPECIFICALLY address this very SPECIFIC >> issue, without having to care what UID it got, or what nice > > The problem with SIGDANGER is that only two programs will use it: > > 1. lpd at RPI. > > 2. The forkbomb someone will post to bugtraq the day after we add the > feature. > > I fully agree that there needs to be a way to prioritize processes. > However, adding an extra signal is just not the way to do it. If we want > a manual system like that, let's just add a "don't kill" bit to the proc > structure which can be set through nice or some other utility by the > system administrator. If we do it this way, then we might also make it generic enough and write pctl(1) as a userland tool that sets 'process properties'. Then add to each process a list or bitmap of property bits that would control the kernel's behavior for that particular process :) :) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-src" in the body of the message
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