[Ardour-Users] 2.8.6 Master out error

John Rigg au at jrigg.co.uk
Fri Feb 5 03:58:26 PST 2010

On Thu, Feb 04, 2010 at 12:18:16AM +0100, Jörn Nettingsmeier wrote:
> i have a feeling that sometimes ardour does not "free" unused jack ports  
> when loading a new session at runtime. it's not 100% reproducible, and i  
> may be mistaken, but i think i sometimes run out of jack ports when i  
> shouldn't be. those alleged "zombie" ports aren't visible in qjackctl,  
> though...
> and i've seen similar connection problems, sometimes with inserts.
> maybe it's related to what you're seeing, maybe not. i'll keep an eye on it.

It's happened a couple more times here but so far I can't trigger it
at will. It happens regardless of whether I've disabled auto connection
to the master bus, contrary to my initial observations.

If I've been working for a long time on one particular session containing
about 16 tracks with a lot of short regions (drum samples), then open a new
session, it sometimes triggers the error. There's a console message from
jackd when it occurs:

unknown source port in attempted connection [ardour:master/out 1]

It's possible that a particular work pattern is triggering it. For the
last couple of days I've been doing a lot of drum sample editing and mixing,
which involves a lot more connecting and disconnecting than I would
normally do.


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