8 Oct
2019
8 Oct
'19
5:05 p.m.
Hello,
I've been having this issue with zita-a2j launching into 100% CPU usage
fairly frequently when I am running Carla, one VST (Audeze Reveal Plugin),
and using Ubuntu Studio 19.04.
Has anyone else seen this kind of behavior before and knows what might be
happening?
--
Scott
http://www.scottcazan.com
Twitter: @scazan <https://twitter.com/scazan>
Instagram: @scazan <https://www.instagram.com/scazan/>
8 Oct
8 Oct
9 p.m.
On Tue, 8 Oct 2019, Scott Cazan wrote:
I've been having this issue with zita-a2j
launching into 100% CPU usage fairly
frequently when I am running Carla, one VST (Audeze Reveal Plugin), and using
Ubuntu Studio 19.04.
Has anyone else seen this kind of behavior before and knows what might be
happening?
I certainly wish I knew what was happening. But yes I have seen similar
things normally if the USB device zita-ajbridge happens to be using at the
time, is unplugged. Restarting Jack always fixes it for me.
If you are using ubuntustudio-controls to run jack, I would suggest filing
a bug against that package as development is ongoing. Controls does send a
SIGKILL to the PID of the zita-ajbridge if it detects the removal of a USB
device but that does not always seem to be effective. If there is a better
way to terminate zita-ajbridge I too would like to know.
So of course sitting here and maddly plugging and unplugging a USB device
does not trigger this behaviour while I watch :P This may be because I am
using a newer version of ubuntustudio-controls than you are.
zita-ajbridge does not seem to detect a vanished device itself. I would
guess alsa does not have a callback for that.
--
Len Ovens
www.ovenwerks.net
10:06 p.m.
On Tue, 8 Oct 2019, Len Ovens wrote:
On Tue, 8 Oct 2019, Scott Cazan wrote:
Also noted while playing around, it does not seem to matter if the device
is removed or not, sending either SIGKILL or SIGTERM does not fully get
rid of zita-ajbridge:
$ ps x |grep zita
27584 pts/5 Z+ 0:00 [zita-j2a] <defunct>
27585 pts/5 Z+ 0:00 [zita-a2j] <defunct>
one was killed with SIGTERM and the other with SIGKILL
Both of these vanish on stopping jackd or starting another zita-ajbridge.
--
Len Ovens
www.ovenwerks.net
I've been having this issue with zita-a2j
launching into 100% CPU usage
If you are using ubuntustudio-controls to run jack, I would suggest filing
a bug against that package as development is ongoing. Controls does send a
SIGKILL to the PID of the zita-ajbridge if it detects the removal of a USB
device but that does not always seem to be effective. If there is a better
way to terminate zita-ajbridge I too would like to know.
2199
days inactive
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days old
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2 comments
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participants (2)
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Len Ovens -
Scott Cazan