I had another go at using sooperlooper today, and it turns out that my
workaround just delays the problem.  Starting up sooperlooper from the
command line with no arguments works fine, but as soon as I start slgui
on a separate command line, the engine segfaults and slgui tries to
spawn its own engine and fails.  It's starting to look like something of
an OSC problem.

The behaviour is similar to that described at an old thread here:
http://ccrma-mail.stanford.edu/pipermail/planetccrma/2005-October/010554.html

The solution there was to install liblo 0.16.4 from an RPM.  I have
liblo 0.23-2.1build1 installed from universe.

[EMAIL PROTECTED]:~# dpkg --list | grep liblo
ii  liblo0                                        0.23-2.1build1                
             Lightweight OSC library
ii  liblo0-dev                                    0.23-2.1build1                
             Lightweight OSC library -- development files
[EMAIL PROTECTED]:~# dpkg --list | grep soop
ii  sooperlooper                                  1.0.8c-2ubuntu1               
             Looping Sampler

[EMAIL PROTECTED]:~# jackd -dalsa -d hw:1 -r 44100 -p 1024 -n 4 &
[1] 8447
[EMAIL PROTECTED]:~# jackd 0.102.20
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

JACK compiled with System V SHM support.
loading driver ..
apparent rate = 44100
creating alsa driver ... hw:1|hw:1|1024|4|44100|0|0|nomon|swmeter|-|32bit
control device hw:1
configuring for 44100Hz, period = 1024 frames, buffer = 4 periods
ALSA: final selected sample format for capture: 24bit little-endian
ALSA: use 4 periods for capture
ALSA: final selected sample format for playback: 24bit little-endian
ALSA: use 4 periods for playback

[EMAIL PROTECTED]:~# 
[EMAIL PROTECTED]:~# sooperlooper
SooperLooper 1.0.8c
Copyright 2005 Jesse Chappell
OSC server URI (network) is: osc.udp://cheese:9951/

Up to this point jackd and the sooperlooper engine have started
successfully.  Upon running slgui, the engine segfaults.

-- 
Sooperlooper segfaults when launched from slgui
https://bugs.launchpad.net/bugs/115152
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