It seems to be truss(1) is broken on current :~> truss /bin/echo x x truss: can not get etype: No such process FreeBSD 9.0-BETA1 #0 r224884M i386 from ktrace of turss 3162 truss CALL __sysctl(0xbfbfea00,0x4,0xbfbfe9e0,0xbfbfea10,0,0) 3162 truss SCTL "kern.proc.sv_name.3163" 3162 truss RET __sysctl -1 errno 3 No such process -- Anton Yuzhaninov