[64studio-devel] Re: Jack Zombified... 0.9.4 SMP

[Daniel James]

Hi Quentin,

> After I sent the previous mail I installed the SMP kernel, and 
> thereafter Jack ran into the 100% CPU barrier at high speed (With no 
> audio apps running)

This sounds like it could be related to the known dual-core CPU bug in 
Jack, rather than an SMP problem as such. I have 0.9.4 running smoothly 
with Jack here on an SMP Opteron system (two single core CPUs). As I 
recall, you've got a dual-core Athlon 64 CPU, haven't you?

> There is a fix for that in the Jack project.  Will you package that with 
> the 1.0 distro so it can be automatically installed with the SMP kernel?

There is a new release of Jack that came out last Friday, version 
0.102.20. We'll have to check if this version has merged the dual-core 
bugfix, and if so, make sure it is included in 64 Studio 1.0. If not, 
we'll have to include an 'alternative' Jack package for dual-core users, 
based on the 'clockfix' branch in Subversion:

http://subversion.jackaudio.org/jack/branches/clockfix/jack/

Cheers!

Daniel