Re: [Jack-Devel] superweird jack error

The stick has 1 gbyte or ram. Top tells me:
KiB Mem:    863396 total,   208044 used,   655352 free,    15204 buffers
KiB Swap:        0 total,        0 used,        0 free,   121640 cached
 
But why in the world would jackd want to lock down 2048917504 byte (about 2 gbyte) of ram?
 
Btw., the --no-mlock option doesn't seem to exist in jackd2.
 
 
-----Ursprüngliche Nachricht-----
 Von: "Florian Paul Schmidt" [[hidden]]
 Gesendet: Do. 14.03.2013 20:46
 An: [hidden]
 Betreff: Re: [Jack-Devel] superweird jack error

Just a shot in the dark: How much       memory do you have in that system? Also try to tell jack not to       mlock memory.
 
 Flo
 
 On 03/14/2013 08:21 PM, [hidden] wrote:Hi list,
 
I've gotten a little further           in my quest to get SuperCollider to run on a Cortex A9 guiless           Ubuntu stick. That means I've only had one system freeze today           trying ot start jackd2.
 
When I start it like this:
 
$ jackd -S -d alsa -d hw:H2           -r 44100 -n 3 -p 512
 
and with rtprio 70 and           memlock unlimited
 
jackd seems to start up           correctly:
 
jackdmp 1.9.10
 Copyright 2001-2005 Paul Davis and others.
 Copyright 2004-2013 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
 JACK server starting in realtime mode with priority 10
 creating alsa driver ...           hw:H2|hw:H2|512|3|44100|0|0|nomon|swmeter|-|32bit
 configuring for 44100Hz, period = 512 frames (11.6 ms), buffer           = 3 periods
 ALSA: final selected sample format for capture: 16bit           little-endian
 ALSA: use 3 periods for capture
 ALSA: final selected sample format for playback: 16bit           little-endian
 ALSA: use 3 periods for playback
 
Now, trying to connect           scsynth (from a self compiled SuperCollider 3.6.2) to jackd I           get this completely new and weird error:
 
Cannot lock down 68157440           byte memory area (Cannot allocate memory)
 Cannot lock down 2048917504 byte memory area (Cannot allocate           memory)
 Cannot lock down 25165824 byte memory area (Cannot allocate           memory)
 JackDriver: client name is ''
 You cannot set callbacks on an active client
 SC_AudioDriver: sample rate = 2890137600.000000, driver's           block size = 33554432
 SuperCollider 3 server ready.
 ERROR: server failed to start
 
I get a very similar error           (exact same memory numbers) when I try to connect the           jack_simple_client.
 
I've googled the error and           the only results that have come up had to do with 32bit vs           64bit and someone trying to run a Windows app via Wine.
 
Anyone have an idea what's           going on?
 
Thanks,
Axel
 

 
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-- Florian Paul Schmidthttp://fps.io-----Ursprüngliche Nachricht Ende-----


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