[Ardour-Users] JACK1 update in svn, significant freewheeling (ardour export) change

[Kevin Cosgrove]

On 26 January 2010 at 14:31, Paul Davis <paul at linuxaudiosystems.com> wrote:

> JACK SVN (rev 3877) contains a very significant change in the way that
> freewheeling is handled. When JACK freewheels, it runs everything as
> fast as possible, without any I/O through the backend (e.g. audio
> interface, netjack). Ardour uses this mode to provide
> faster-than-realtime export. There was a significant conceptual error
> - if the client that put JACK into freewheeling mode exits the graph
> abnormally (e.g. via crashing) then the JACK server never leaves
> freewheeling mode.
> 
> This commit is an initial attempt to fix the problem. I have tested it
> using a specially written misbehaving client, and it appears robust.
> However, it could use some more testing before a new release of JACK1
> occurs.

I wonder if this would be related to a problem I had with ardour 0.9X 
hanging the machine at the end of an export.  Ardour 2 never had such
problems.  I think I was running jack versions 0.102.X to maybe as 
high as 0.116.1.  But, I'm not super sure anymore on which version(s) 
of jack might have been installed when I saw these symptoms.  There 
is a filed bug report for this.

Again, I have no problems at all now.  But, maybe your find and my 
symptoms will help someone close a bug, which always feels good when 
I get to do that.

Cheerio....


 
--
Kevin