Re: [Jack-Devel] Too many servers already active

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DateFri, 17 May 2013 12:37:37 +0200
From Jan Middelkoop <[hidden] at radiocapelle dot nl>
ToPaul Davis <[hidden] at linuxaudiosystems dot com>
CcJACK <[hidden] at lists dot jackaudio dot org>
In-Reply-ToPaul Davis Re: [Jack-Devel] Too many servers already active
Hi,

Very useful answer.  Thanks. :-)

Kindest regards,
Jan Middelkoop


On 05/17/2013 12:29 PM, Paul Davis wrote:
> There is a shared memory area used to register each jack server. if 
> you kill the servers, it will not be cleaned up correctly. To clean it 
> you'll need to use a clean method of shutting jackd down or use system 
> tools such as shmctl.
>
>
> On Fri, May 17, 2013 at 6:26 AM, Jan Middelkoop <[hidden] 
> <mailto:[hidden]>> wrote:
>
>     Hi,
>
>     At the radio station where I volunteer, we're using 100% open
>     source software.  We have a playout system for audio files, where
>     users log in one at a time and as part of their session jackd is
>     started, along with the newly created audio player 4deckradio.
>      When they log out, all their running programs (including jackd)
>     are killed.
>
>     Every now and then, after maybe 15, 20 new logins, jackd refuses
>     to start for all users.  The error message is that there are "too
>     many servers already active".  However, there are no jackd
>     processes still running when I do a "ps aux | grep jack".
>
>     A complete restart of the machine remedies the problem,
>     temporarily at least.
>
>     My hunch is that jackd isn't able to clean up properly sometimes
>     (perhaps because it is killed before it has the chance?) causing
>     future servers to not start.  I'm at a loss however to figure out
>     -what- exactly it doesn't clean up, if that is the case.
>
>     Could someone shed some light on what is preventing jackd from
>     starting up?  If I know what is preventing jackd from starting, I
>     could remedy it with a small workaround/hack maybe.
>
>     Kindest regards,
>     Jan Middelkoop
>
>     Program director at Radio Capelle, the Netherlands
>     
>     Jack-Devel mailing list
>     [hidden] <mailto:[hidden]>
>     http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
>
>
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