14 Sep
2012
14 Sep
'12
12:39 p.m.
Hi!
I'm trying to get JACK working on this great tiny box:
pi@raspberrypi ~ $ jackd -dalsa
jackdmp 1.9.9
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2012 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
Cannot lock down 82274202 byte memory area (Cannot allocate memory)
Bus error
As ALSA is OK (i.e. aplay is playing good) and RAM=192M, is there any JACK
parameter I could tune in to reduce the memory size lock?
This pb seems unresolved yet:
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=41&t=5787
Yomguy
14 Sep
14 Sep
2:42 p.m.
On 09/14/2012 05:39 AM, Parisson wrote:
Hi!
I'm trying to get JACK working on this great tiny box:
pi@raspberrypi ~ $ jackd -dalsa
jackdmp 1.9.9
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2012 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
Cannot lock down 82274202 byte memory area (Cannot allocate memory)
Bus error
When you built Jack2... it looks like you enabled performance tracing.
When you do this it has to allocate a Really Big ringbuffer in memory.
To fix it -- disable this at compile time.
As ALSA is OK (i.e. aplay is playing good) and RAM=192M, is there any JACK
parameter I could tune in to reduce the memory size lock?
Yeah, sucking up half your memory will probably always fail. :-)
-gabriel
3:40 p.m.
On 14/09/2012 14:42, Gabriel M. Beddingfield wrote:
Indeed! :)
Thanks
Y
On 09/14/2012 05:39 AM, Parisson wrote:
I'm looking for the right option in the waf/configure scripts, but not finding it..
any idea ?
Hi!
I'm trying to get JACK working on this great tiny box:
pi@raspberrypi ~ $ jackd -dalsa
jackdmp 1.9.9
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2012 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
Cannot lock down 82274202 byte memory area (Cannot allocate memory)
Bus error
When you built Jack2... it looks like you enabled performance tracing. When you
do this it has to allocate a Really Big ringbuffer in memory.
To fix it -- disable this at compile time.
As ALSA is OK (i.e. aplay is playing good) and RAM=192M, is there any JACK
parameter I could tune in to reduce the memory size lock?
Yeah, sucking up half your memory will probably always fail. :-)
4:51 p.m.
On 14/09/2012 15:40, Parisson wrote:
On 14/09/2012 14:42, Gabriel M. Beddingfield wrote:
I've to increase the /dev/shm size so that the lock down seems OK.
$ sudo mount -o remount,size=128M /dev/shm
But a bus error makes it still crash:
pi@raspberrypi ~ $ jackd -v -m -P70 -dalsa -dhw:0 -r44100 -p512 -n2 -P
jackdmp 1.9.9
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2012 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 70
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: playback device hw:0
Jack: capture device hw:0
Jack: apparent rate = 44100
Jack: frames per period = 512
Jack: JackDriver::Open capture_driver_name = hw:0
Jack: JackDriver::Open playback_driver_name = hw:0
Jack: Check protocol client = 8 server = 8
Jack: JackEngine::ClientInternalOpen: name = system
Jack: JackEngine::AllocateRefNum ref = 0
Jack: JackPosixSemaphore::Allocate name = jack_sem.1000_default_system val = 0
Jack: JackEngine::NotifyAddClient: name = system
Bus error
ARG :'(
Y
On 09/14/2012 05:39 AM, Parisson wrote:
Hi!
I'm trying to get JACK working on this great tiny box:
pi@raspberrypi ~ $ jackd -dalsa
jackdmp 1.9.9
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2012 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
Cannot lock down 82274202 byte memory area (Cannot allocate memory)
Bus error
When you built Jack2... it looks like you enabled performance tracing. When you
do this it has to allocate a Really Big ringbuffer in memory.
To fix it -- disable this at compile time. 
4:57 p.m.
I have the same problem and from what I understand, the problem is that the alsa driver
for the rpi lacks functionality ( mmap support) required by jack.
I was thinking about writing a new jackd driver backend using the omxlayer available on
the rpi, and bypassing alsa, but before doing that I would need to know more about the
jackd driver interface and what functions would be required to implement. I am only
interested in audio output, so my aim was to limit the driver to the required output
functions.
Any help, suggestions or guidance would be most welcome.
Thanks
Lars
Skickat från min iPhone
14 sep 2012 kl. 12:39 skrev Parisson <lists(a)parisson.com>om>:
Hi!
I'm trying to get JACK working on this great tiny box:
pi@raspberrypi ~ $ jackd -dalsa
jackdmp 1.9.9
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2012 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
Cannot lock down 82274202 byte memory area (Cannot allocate memory)
Bus error
As ALSA is OK (i.e. aplay is playing good) and RAM=192M, is there any JACK
parameter I could tune in to reduce the memory size lock?
This pb seems unresolved yet:
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=41&t=5787
Yomguy
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16 Sep
16 Sep
9:38 p.m.
Hi Lars,
2012/9/14 Lars-Erik Helander <lehswe(a)gmail.com>
I have the same problem and from what I understand,
the problem is that
the alsa driver for the rpi lacks functionality ( mmap support) required by
jack.
I was thinking about writing a new jackd driver backend using the omxlayer
available on the rpi, and bypassing alsa, but before doing that I would
need to know more about the jackd driver interface and what functions would
be required to implement. I am only interested in audio output, so my aim
was to limit the driver to the required output functions.
Any help, suggestions or guidance would be most welcome.
Don't know if getting Jack running on the PI would actually be usable for
anything, but it'd sure be fun.
I've got one too and to my big surprise I got MusE running on it and
playing through an usb midi interface. For audio support jack would be
needed, so if you get it working, do tell. :)
Regards,
Robert
4247
days inactive
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linux-audio-dev@lists.linuxaudio.org
5 comments
4 participants
participants (4)
-
Gabriel M. Beddingfield -
Lars-Erik Helander -
Parisson -
Robert Jonsson