Rui Nuno Capela wrote: >Better yet, it would be nicer if you can rebuild qjackctl from source with >full debug information (./configure --enable-debug) and repeat the gdb >session and post the bt output to me. > Hi Rui: I built from the source tarball and removed the Planet C version (via synaptic). However, when I attempt using gdb, here's what happens: [dlphilp@localhost dlphilp]$ gdb /usr/local/bin/qjackctl GNU gdb Red Hat Linux (5.3post-0.20021129.18rh) Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"... (gdb) r Starting program: /usr/local/bin/qjackctl [New Thread 16384 (LWP 7839)] Warning: no locale found: /usr/local/share/locale/qjackctl_en_US.UTF-8.qm [New Thread 32769 (LWP 7840)] Can't attach LWP 7840: Operation not permitted (gdb) I'm not very familiar with gdb + threaded apps, so any pointers will be appreciated. :) Best, dp