linux-kernel - Re: Where is RLIMIT_RT

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Message-Id: <1153009392.6374.77.camel@idefix.homelinux.org>
Date:	Sun, 16 Jul 2006 10:23:11 +1000
From:	Jean-Marc Valin <Jean-Marc.Valin@...erbrooke.ca>
To:	Lee Revell <rlrevell@...-job.com>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Esben Nielsen <nielsen.esben@...glemail.com>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: Where is RLIMIT_RT_CPU?

> I don't think it's a problem.  If the admin does not want non-root users
> to be able to lock up the machine, just don't put them in the realtime
> group.

What if the admin *wants* non-root users to have good quality audio, and
just doesn't want them to crash the system (voluntarily and especially
accidentally). Enforcing CPU limits *is* possible and it has already
been done independently by both Ingo and Con. I'm just waiting for the
feature to be available out-of-the box, which is not for today if kernel
space keeps pointing at userspace and vice versa. :-(

	Jean-Marc
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