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

[Lee Revell]

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.

Lee