Slackware64 14.0, real time kernel, no real time as user.
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jackd has to run with realtime privileges. One way to do this on Slackware
would be to use set_rlimits. Since 12.2 there's another way - if you have
a filesystem that supports posix capabilities (reiserfs does not), you can
grant jackd the rights to run in realtime mode, even when started as a
normal user, with the following command:
I got this message for the following reasons when using set_rlimits:
- user was not in group "audio" (or whatever group was set in set_rlimits.conf)
- i missspelled the ablolute path to the program in set_rlimits.conf
- i didn't start the programm with "set_rlimits pgName"
WARNING: Your system has a limit for maximum amount of locked memory!
This might cause Ardour to run out of memory before your system runs
out of memory. You can view the memory limit with 'ulimit -l', and it
is normally controlled by /etc/security/limits.conf
You tried /sbin/initscript to set ulimit? Iirc, settings done via ulimit relate to the shell ulimit is run in: you have to do the change as root, but you will (hopefully) run ardour as user, so ardour won't be affectet by the new setting. Therefore this setting should be done in /sbin/initscript.
Edit: When you use set_rlimits you have to use /etc/set_rlimits.conf instead of /etc/security/limits.conf