[ardour-users] Jack uses 100% CPU and can't be killed

Mark Knecht markknecht at gmail.com
Tue Nov 30 08:18:45 PST 2004

On Tue, 30 Nov 2004 10:58:33 +0000, Ben Edwards <funkytwig at gmail.com> wrote:
> When I run jack with qjackctl it coplains about ALSA/midi/patchbay.  I
> went on IRC and as a result tried to start jack anyway.   It then
> consumed 100% cpu.  I couldent run top or ps!  In fact I couldent even
> shut down the PC properly - I had to hold my finger on the power
> button for 10 seconds to do a hard shutdown.
> BYW are the error messages loged to a file - I cant even copy/paste
> them from the message window.
> Regards,
> Ben

   I don't have a clue what's cauing this but I'm sure people are
going to need more info. What distro? What revision of Jack and
qjackctl? What modules are loaded? What sound card? Contents of
modules.conf or modprobe.conf. What kernel? As a user or as root or

   Sorry for your troubles,

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