[linux-audio-user] Low latency with 2.6.16.16 vanilla

[Jack O'Quin]

On 5/24/06, Lee Revell <rlrevell at joe-job.com> wrote:
> On Wed, 2006-05-24 at 19:08 +0100, Rui Nuno Capela wrote:
> > Jack O'Quin wrote:
> > >
> > > The required components are now available, and are being provided
> > > by a few leading-edge distributions.  Had you installed Ubuntu Dapper
> > > Drake (which is not yet officially released), you would not have seen
> > > any problem.  They chose to include the PAM patches and authorize
> > > all users to start realtime threads be default.  That is a reasonable
> > > choice for them (given their goals), but would not be appropriate for
> > > most other distributions.
> > >
> >
> > OpenSUSE 10.1, which has been officially released a couple of weeks ago,
> > also is PAM ready. However, it's not OOTB. You'll have to add the
> > relevant entries to /etc/security/limits.conf, like for example these
> > ones where realtime capabilities are given only to users who belong to
> > the "audio" group:
> >
> > @audio          -       rtprio          90
> > @audio          -       nice            -10
> > @audio          -       memlock         4000000
>
> Ubuntu does not have these lines OOTB, you also have to add them.
>
> No distro with a "secure by default" policy could enable this out of the
> box as it allows non-root users to lock up the machine.

Dapper came up "insecure by default" for me.  Knowing about this stuff,
I added something similar, restricting access to group "audio".  I figured
they had done it intentionally (so things would "just work").

Maybe they consider it a bug and have "fixed" it?
-- 
 joq