Zombified

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nick_livings
User offline. Last seen 12 weeks 23 hours ago. Offline
Joined: 2013-11-24
Posts:

Today, Ardour crashed repeatedly and gave me a message that said "zombified". I could do nothing at all except to "just quit" without saving and restart Ardour. But then it would happen again after a while.

I'm sorry I have no other information than this, but I do not know what to provide or even what to look for. It was very, very frustrating. I'm just making this post and shutting down my DAW for the day, hoping to come back later to see if someone could at least tell me what to look for in figuring out why this happens.

VvSurLeRiddim
VvSurLeRiddim's picture
User offline. Last seen 12 weeks 2 days ago. Offline
Joined: 2013-03-12
Posts:

Try to launch ardour from a console/terminal, then when the crash occurs, see if there is any output in the console and if yes paste it here.

veda_sticks
User offline. Last seen 1 hour 25 min ago. Offline
Joined: 2011-03-11
Posts:

This is one for the bug reports where they will get seen. bug reports on here mostly get ignored or missed.

http://ardour.org/debugging_ardour.html

that page describes how to get the required debugging information that you can paste on mantis bugtracker

nick_livings
User offline. Last seen 12 weeks 23 hours ago. Offline
Joined: 2013-11-24
Posts:

Here's the output from a terminal when I started Ardour from the command line. I had Ardour running for a while before it happened again, but at this point, it seems to always happen sooner or later during the work day, and more than once. I have no idea what's relevant and what's not, so here's the whole thing:

(user)@(host) ~ $ ardour3 &
[1] 3886
(user)@(host) ~ $ lilv_world_load_bundle(): error: Error reading file:///home/(user)/.lv2/presets/manifest.ttl
bnd txt domain [gtk2_ardour3] to /usr/share/locale
Ardour3.5.143 (built using 3.5-143-gentoo and GCC version 4.7.3)
ardour: [INFO]: Your system is configured to limit Ardour to only 4096 open files
ardour: [INFO]: Loading system configuration file /etc/ardour3/ardour_system.rc
Loading user configuration file /home/(user)/.config/ardour3/ardour.rc
Using SSE optimized routines
/usr/share/themes/NOX/gtk-2.0/gtkrc:233: Murrine configuration option "gradients" is no longer supported and will be ignored.
ardour: [INFO]: Loading default ui configuration file /etc/ardour3/ardour3_ui_default.conf
Loading ui configuration file /etc/ardour3/ardour3_ui_dark.rc
/usr/share/themes/NOX/gtk-2.0/gtkrc:233: Murrine configuration option "gradients" is no longer supported and will be ignored.
Found nothing along /home/(user)/.config/ardour3/templates:/usr/share/ardour3/templates
Announcement is:
run dialog
unlocking /usr/lib64/ardour3/ardour-3.5.143
VST_PATH not set, defaulting to /home/(user)/vst:/usr/local/lib/vst:/usr/lib/vst
Scanning folders for bundled LV2s: /usr/lib64/ardour3/LV2
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-constants.lv2/math-constants.ttl:19:31: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name
Playlist with ID = 2265651 not found
Playlist with ID = 2265651 not found
Playlist with ID = 2265651 not found
linuxDSP: UI dpi 81
linuxDSP: UI scale 100.0 %
** INFO ** BLACK-EQ: UI Instantiate
linuxDSP: UI dpi 81
linuxDSP: UI scale 100.0 %
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 0
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 0
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1004
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 511
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1022
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1021
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1022
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1021
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1023
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1020
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1021
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1020
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1018
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1016
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1016
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1016
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1014
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1012
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1013
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1010
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1010
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1009
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1006
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1004
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1005
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1002
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1003
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1003
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1000
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 999
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 995
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 994
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 995
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 992
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 992
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 991
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 0
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 0
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 483
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1009
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1009
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1009
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 0
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 0
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 483
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1009
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1009
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1007
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1009
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
PluginWindow deleted for 0x46f44480
PluginWindow deleted for 0x46b870a0
JACK HALTED: zombified
Butler drops pool trash

[1]+ Segmentation fault ardour3

nick_livings
User offline. Last seen 12 weeks 23 hours ago. Offline
Joined: 2013-11-24
Posts:

Also, when starting Ardour immediately after a crash like this, Ardour (I assume - what else could it be?) produces a brief, distorted buzzing through my console while displaying the startup splash screen. This buzzing happens only if I start Ardour immediately following this kind of crash.

nick_livings
User offline. Last seen 12 weeks 23 hours ago. Offline
Joined: 2013-11-24
Posts:

Seems to be happening very frequently now. This is very frustrating. Submitted bug report (http://tracker.ardour.org/view.php?id=5837) but would still like to know what I can to do stop this from happening.

linuxdsp
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Joined: 2009-02-04
Posts:

@nick_livings: I've noticed bursts of noise happening when restarting Ardour after a crash too, I think something is left behind / not flushed properly from JACK when a client (e.g ardour) exits unexpectedly (not nice when monitoring via headphones as I discovered recently..)
There also seems to be something badly wrong with an LV2 plugin (or some associated file) - specifically the:
error: /usr/lib64/lv2/math-functions.lv2/math-functions.ttl:76:30: name ends with `.'
lilv_plugin_get_name(): warning: Plugin has no (mandatory) doap:name

messages and I would be suspicious of the
RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008
messages too - that doesn't look very happy at all.

wimpauwels85
User offline. Last seen 10 weeks 2 days ago. Offline
Joined: 2014-02-04
Posts:

Hello, I am new to the forum, but INDEED THERE IS A VERY SERIOUS BUG IN ARDOUR as a musician every person wants to have a running smooth ardour gui but it hangs from the beginning to the the end and everytime i want to restart a recording only a few seconds can be done but then a sudden freeze of ardour keeps coming up. no matter how i put jack in settings or the most fast computer i can use. It only not hangs when you don't record a line in jack. so it can only be used as a monitoring programme. and then it is still not good programmed because it takes too long (half a minute) to start up even without jack server running. this is also a weird fact because in earlier versions the programme used to be as stable as a house in an stormy weather and not as at this buggy moment that it takes so many weird bugs in it. I am really hoping that the developers give back the previous version which was realiable to everyone and it was no rubbish (excuse me the word but it is the only truth) it can't compete with audacity any longer. and this programma used to be slower than now.

Hoping a very backward solution is possible so that musicians can be doing what they were doing and don't crash anymore in a new version.
only the good thing is: led meter implementation just debug that and throw video support out of it and other rare used plugins so we can continue mixing and line recording metering without rubbish please and do it fast as possible.
thank you very much to solve that. for ubuntu saucy and all others!!
Kind regards
wim pauwels

seablade
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Joined: 2007-01-22
Posts:

@wimpauwels

Well the issue is you seem to be having a problem noone else is, and typically that indicates something in particular with your system. So I would suggest filing a bug report in the bug tracker to start with, but if you can get on IRC it would probably be good as well.

I would also suggest that the point of Ardour has nothing to do with Audacity. They are completely different programs with completely different purposes.

I also would suggest that while you don't use the video support, others, including myself do, and in fact am about to release another video the audio was done in Ardour with it, quite successfully I might add and never had any problem you described.

Seablade

paul
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Bug reports here in the forums will be ignored 99% of the time, as will programming advice on how to manage features. Please see http://ardour.org/how_to_report_a_bug
Domino
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Posts:

RubberBandPitchShifter::runImpl: buffer underrun: required = 1024, available = 1008

I got errors similar to this when I tried to get too low a latency in jack. I adjusted Frames/Period and Periods/Buffer until the errors went away. I think enabling realtime when your system isn't fully set up for it can cause this too.