[ardour-users] problem with ladspa plugins

Sampo Savolainen v2 at iki.fi
Thu Jul 20 13:38:32 PDT 2006

On Thu, 2006-07-20 at 12:03 +0200, antonio castellano wrote:
> hit all,
> i was running ardour 0.99.3, sync with jack and hydrogen,  after
> copying  a session in another dir, (because i  need one to use for the
> live sessions,  and one  to work on) both the new session and the source
> doesn't have any ladspa plugin, and of course any automation, i solved
> it some time ago adding again the ladspa plugins, but this time i have
> saved the session fr a mistake and now i'm unable to recover the old
> session, even if i still have a backup session.ardour.

Which plugins were they which disappeared and also, was the session
created in a previous version of ardour?

> even some crashes with ardour 0.99.3 and some crossfades (manually
> edited) or medium automation (where fast is around 0,5sec and less, and
> slow is more then 1-2 second... and only on certain plugins like the
> reverse delay)

Crash reports are always appreciated! Can you duplicate these crashes?

If yes, could you either send us a detailed duplication report (starting
from creating a test session to duplicate the issue), or build a debug
version of ardour and get us a backtrace of the crash?

To get a backtrace, you need to run ardour in gdb:

user at host:~$ gdb /usr/bin/ardour
GNU gdb 6.4.90-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
welcome to change it and/or distribute copies of it under certain
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
This GDB was configured as "i486-linux-gnu"...Using host libthread_db
library "/lib/tls/i686/cmov/libthread_db.so.1".

(gdb) run [parameters for ardour]

.. Then duplicate the issue. As the crash happens you should see
something like this:

Segmentation fault

At the prompt, you should give the command "thread apply all bt" and
send us all output from that command.

Sampo Savolainen <v2 at iki.fi>

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