linuxaudio.org

On 14/09/2012 15:40, Parisson wrote:

quoted text
> On 14/09/2012 14:42, Gabriel M. Beddingfield wrote:

>> 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.

> 

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

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