[PlanetCCRMA] jackstart hanging the system

[Joseph Zitt]

On Fri, 27 Dec 2002 10:31:40 -0800
Joseph Zitt <jzitt at metatronpress.com> wrote:

> On 27 Dec 2002 10:05:08 -0800
> Fernando Pablo Lopez-Lezcano <nando at ccrma.Stanford.EDU> wrote:
> 
> > Sounds fine again. You are getting dropouts but that is to be
> > expected if you run jack without realtime priviledges. Try using
> > "jackstart" instead of "jackd". 
> 
> Hmm, trying that, I get the RT thread error again, followed by the
> same xruns.
> 
> [root at gimel mp3]# jackstart -R -d alsa -d hw -p 864
> jackd 0.41.1
> Copyright 2001-2002 Paul Davis and others.
> jackd 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
> 
> loading driver ..
> creating alsa driver ... hw|864|2|48000|swmon
> starting engine
> cannot lock down memory for RT thread (Cannot allocate memory)
> **** alsa_pcm: xrun of at least 0.077 msecs
> **** alsa_pcm: xrun of at least 0.093 msecs
> **** alsa_pcm: xrun of at least 0.099 msecs
> **** alsa_pcm: xrun of at least 0.092 msecs
> **** alsa_pcm: xrun of at least 0.076 msecs
> **** alsa_pcm: xrun of at least 0.070 msecs
> **** alsa_pcm: xrun of at least 0.111 msecs
> **** alsa_pcm: xrun of at least 0.089 msecs
> **** alsa_pcm: xrun of at least 0.068 msecs

Looking at online docs, I see that I should run jackstart as a user, not
as root. But doing so makes no difference.

> Also: should jackstart eventually return me to a prompt and run in the
> background, or continue to hold onto the xterm session. Either would
> be OK; I'm just unclear as to which behavior to expect.



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