Same problem with DragonFlyBSD, which doesn't have KERN_PROC_PROC but
KERN_PROC_ALL and has switched to a flat kinfo_proc structure.

sys/sysctl.h (KERN_PROC_ALL)
http://gitweb.dragonflybsd.org/dragonfly.git/blob/HEAD:/sys/sys/sysctl.h

sys/kinfo.h (struct kinfo_proc)
http://gitweb.dragonflybsd.org/dragonfly.git/blob/HEAD:/sys/sys/kinfo.h

"Change kinfo_proc interface between kernel and userland."
http://gitweb.dragonflybsd.org/dragonfly.git/commit/5dfd06ac148512faf075c4e399e8485fd955578f

Perhaps should the list-system-processes function be enabled only on
targets where it is known to work?
-- 
Jérémie Courrèges-Anglas
GPG Key fingerprint: 61DB D9A0 00A4 67CF 2A90  8961 6191 8FBF 06A1 1494