Re: [proaudio] Jack real-time for users stopped working

["Kjetil S. Matheussen" <k.s.matheussen@xxxxxxxxxx>]

On Mon, 30 Jun 2008, Jouni Rinne wrote:

> Kjetil S. Matheussen kirjoitti:
> >  On Sun, 29 Jun 2008, Mark Knecht wrote:
> >
> > >  Hi,
> > >    It's been a long time since I've had a problem with this. I always
> > >  use Jack with real-time turned on, even for just listening to music,
> > >  but I haven't even listened to music on this machine in awhile so I
> > >  have no idea when this broke. Real-time is working for root, but not
> > >  for users.
> > >
> >
> >  I don't know what might be the problem with pam, but using the old
> >  realtime-lsm module still works just fine. I never stopped
> >  using that one:
> >
> >  emerge realtime-lsm
> >  echo "/sbin/modprobe realtime mlock=1 any=1" >>/etc/conf.d/local.start
>
> AFAIK realtime-lsm doesn't work on 2.6.24 kernel or newer. From the 
> realtime-lsm ebuild:
>
>  * Since version 2.6.24 of the Linux kernel, security capabilities can't be
>  * made into a module, and external security modules can't be compiled any
>  * longer.
>  * Please refer to the Realtime Guide to set up a PAM-based realtime group.
>  * http://www.gentoo.org/proj/en/desktop/sound/realtime.xml

Oh, I didn't know. Too bad, I've tried setting up pam a couple
of times, and allways had some trouble making me resort to realtime-lsm.
PAM is probably a security risk since it's so complicated to set up.