Re: 2.6.11-rc3-mm2

[Ingo Molnar]

* Matt Mackall <mpm@xxxxxxxxxxx> wrote:

> > > Yes. There's also the whole soft limit thing.
> > 
> > i'm curious, how does this 'per-app' rlimit thing work? If a user has
> > jackd installed and runs it from X unprivileged, how does it get the
> > elevated rlimit?
> 
> It needs a setuid launcher. It would be nice to be able to elevate the
> rlimits of running processes but the API doesn't exist yet.

With a setuid launcher you need _zero_ kernel help to get SCHED_FIFO: if
you have a launcher then already today it can just give SCHED_FIFO to
jackd and be done with it!

	Ingo
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