hey all first off i when i tried to start ardour it gave me an error message saying it couldn't start jack because of several possible reasons  it also said some thing about memory allocation in the message does any one know what this problem is and how to solve it? 

Secondly i inputted the below command into terminal  for my ederol u a 25 and avid m box mini sound cards and got the below results: 

ed command inputted for ederol and avid sound cards: 


jackd -d alsa -d hw:UA25 -n 3 -p 128 -r 48000 

u a 25 output results: 


sound-warrior@the-megga-machine:~$ jackd -d alsa -d hw:UA25 -n 3 -p 128 -r 4800
jackdmp 1.9.8
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
Cannot create thread 1 Operation not permitted
Cannot create thread 1 Operation not permitted
Cannot create thread 1 Operation not permitted
JACK server starting in realtime mode with priority 10
Cannot lock down 82241434 byte memory area (Cannot allocate memory)
audio_reservation_init
Acquire audio card Audio1
creating alsa driver ... hw:UA25|hw:UA25|128|3|4800|0|0|nomon|swmeter|-|32bit
configuring for 4800Hz, period = 128 frames (26.7 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 24bit little-endian
ALSA: use 3 periods for capture
ALSA: final selected sample format for playback: 24bit little-endian
ALSA: use 3 periods for playback
Cannot use real-time scheduling (RR/10)(1: Operation not permitted)
AcquireSelfRealTime error


avid m box mini output results: 



sound-warrior@the-megga-machine:~$ jackd -d alsa -d hw: Avid Mbox Mini -n 3 -p 128 -r 4800
jackdmp 1.9.8
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
Cannot create thread 1 Operation not permitted
Cannot create thread 1 Operation not permitted
Cannot create thread 1 Operation not permitted
JACK server starting in realtime mode with priority 10
Cannot lock down 82241434 byte memory area (Cannot allocate memory)
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:|hw:|128|3|4800|0|0|nomon|swmeter|-|32bit


ATTENTION: The playback device "hw:" is already in use. Please stop the application using it and run JACK again
Cannot initialize driver
JackServer::Open() failed with -1
Failed to open server
sound-warrior@the-megga-machine:~$ 
 

does any one know what these errors given by terminal mean? and how to solve the problem? 

Your help with these problems would be most welcome kind regards trahern.