4 Nov
2005
4 Nov
'05
11:01 a.m.
Am Donnerstag, 3. November 2005 23:49 schrieb Jonathan Woithe:
I'm a bit puzzled by this statement. lsm requires you get the patch, apply
it to your kernel, configure and compile your kernel, install and boot the
new kernel and then you can start configuring userspace to take advantage
of it.
In contrast, using the rtlimits approach can be as simple as grabbing
set_rtlimits and compiling it (assuming one has a kernel >= 2.6.13
installed of course). Configuring userspace is via a single simple text
file (documented in the source distribution). Using it then boils down to
doing things like
set_rtlimits -r /usr/local/bin/jackd ...
set_rtlimits -r /usr/local/bin/ardour
yes jonathan, in my opinion its easier to set up set_rtlimits than lsm
but i thought, set_rtlimits gives me the same right as a normal user as when i
am root. right?
But on my system, when i started jackd as normal user as you wrote above.
in the config file i only changed the username into soundroom
------------------------
soundroom@funnjoy:~/src$ set_rtlimits -r /usr/local/bin/jackd -R -dalsa
jackd 0.100.0
[..] JACK compiled with System V SHM support.
cannot lock down memory for jackd (Cannot allocate memory)
loading driver ..
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
control device hw:0
ALSA: Cannot open PCM device alsa_pcm for capture. Falling back to
playback-only mode
configuring for 48000Hz, period = 1024 frames, buffer = 2 periods
nperiods = 2 for playback
JACK: unable to mlock() port buffers: Cannot allocate memory
jack main caught signal 2
no message buffer overruns
------------------------
and when i'm root evrything went better, i see my two capture devs, have no
problems with memory and whatever.
-------------------------
root@funnjoy:/home/soundroom/src# jackd -R -dalsa
jackd 0.100.0
[..]JACK compiled with System V SHM support.
loading driver ..
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 48000Hz, period = 1024 frames, buffer = 2 periods
nperiods = 2 for capture
nperiods = 2 for playback
jack main caught signal 2
no message buffer overruns
------------------------------------------
can someone out there tell me this hint, please