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

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]> 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
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