Jack not working: Bus error

[Sérgio Siegrist]

I tried ports and packages. I get the same on both. Tried as normal user and superuser. Same results.
Console sample:
(Start)
/usr/local/bin/jackd -r -doss -r48000 -p1024 -n2 -w16
jackd 0.124.1
Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn 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 ..
Bus error
(End)

Can somebody help me? Can I help somebody? Am I missing something?
Thanks!