Hi, 

With Tapsa, a finnish kernel hacker, we are testing some kernels that he is 
building and uploading here for the Musix GNU/Linux distribution:

http://linux.ilmainen.net/musix/temp/

We have problems using these kernels from a non-root user: JACK has no 
realtime capabilities. From a root user, all went ok. But, of course, we need 
to use JACK as non-root user.

"# modprobe realcap
FATAL: Error inserting realcap 
(/lib/modules/2.6.20-rc2-rt3/kernel/security/realcap.ko): Invalid argument"

¿?

"There don't even seem to be any capability module existing any more 
(only following beginning with "cap"):
# modprobe cap
capi     capidrv  capifs   capmode
"

 modprobe capability
FATAL: Module capability not found.
modprobe realtime
FATAL: Module realtime not foun


 ps -C jackd -cmL
  PID   LWP CLS PRI TTY          TIME CMD
 8768     - -     - ?        00:00:00 jackd
    -  8768 TS   19 -        00:00:00 -
    -  8769 TS   24 -        00:00:00 -
    -  8770 TS   24 -        00:00:00 -
    -  8771 TS   24 -        00:00:00 -
    -  8772 TS   24 -        00:00:00 -


As root user:

ps -C jackd -cmL
  PID   LWP CLS PRI TTY          TIME CMD
 8736     - -     - ?        00:00:00 jackd
    -  8736 TS   19 -        00:00:00 -
    -  8737 TS   24 -        00:00:00 -
    -  8738 TS   24 -        00:00:00 -
    -  8739 FF   90 -        00:00:00 -
    -  8740 FF   80 -        00:00:00 -

It can get realtime capabilities (root allways can if the kernel is realtime 
enabled), and it goes ok.

What could be the problem with realtime issue and normal users? The realtime 
module is "obsolete" ok, but it used to work very good. 


It would be useful to build the kernel along with the obsolete realtime-lsm 
module? Or you dont recommend it?

-- 
Marcos Guglielmetti  
* Director del desarrollo de Musix GNU+Linux, 100% Software Libre
* CD Donwload: (http://www.musix.org.ar/en/)
* Videos, programas y otras cosas en: ftp://musix.ourproject.org/pub/musix/
* Reporte de errores a: 
https://www.musix.org.ar/wiki/index.php?title=Problemas-Bugs
*IRC: #musix channel on freenode
* Torrent Download:
https://e.ututo.org.ar/utiles/torrent/MusixGNU-Linux0.59.iso.torrent

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