Le Fri, 16 Feb 2007 00:58:29 +0100, Johan Ekenberg <[EMAIL PROTECTED]> a écrit :
> Hi! > > Using 2.6.19-rt15, realtime-lsm and jack 0.102.20, I did a lot of audio > programming a few months back. Now I'm trying to continue where I left off, > but jackd refuses to run with -R. > "required capabilities not available"? > realtime-lsm is loaded, it's the same kernel and jackd as before. I'm in the > audio-group as always. > > When running as root, it also stops after "waiting for signals": > === > [EMAIL PROTECTED]:/home/johan# jackd -v -R -d alsa > < the same as above until: > > running with uid=0 and euid=0, will not try to use capabilites > < again as above until: > > 8107 waiting for signals > ==> <again the ~5 second delay> > jackd watchdog: timeout - killing jackd > Aborted > === > > Yes, audio using ALSA still works normally. The hardware has not changed. The > system is configured according to > http://proaudio.tuxfamily.org/wiki/index.php?title=Realtime_%28RT%29_Kernel > > I never actively tried to use PAM/RLIMITS, but I see > that /etc/security/limits.conf has: # REALTIME support for audio group users > @audio - rtprio 100 > @audio - nice -10 > @audio - memlock 250000 > > Could this be causing a conflict with realtime-lsm? I tried rmmod realtime > and jackd -R but no improvement. > > /Johan Ekenberg - Sweden Hej Johan ! With 2.6.19 kernel, the realtime-lsm name is realcap. So you have to change it in /etc/modules.autoload.d/kernel-2.6: realcap gid=18 If you are using older kernel too, you can have 2 lines, one for realtime, the other for realcap. It will work, you will only get an error message for the non existing one with the kernel you are booting. I have not changed anything in /etc/modules.d/realtime. It is still options realtime gid=18 and it seem to work. It look like I can remove that line anyway as I am using /etc/modules.autoload.d/kernel-2.6 for that. PAM-rlimits and realcap (or realtime) will not conflict because PAM-rlimits will take control over the realcap module. So it make no sens to use both and is better to configure and use only one of them. Ciao, Dominique
