#X -configure
----------------------------------------------------------------------------

X Window System Version 6.8.1
Release Date: 17 September 2004
X Protocol Version 11, Revision 0, Release 6.8.1
Build Operating System: FreeBSD 5.3-BETA6 i386 [ELF] 
Current Operating System: FreeBSD  5.3-BETA7 FreeBSD 5.3-BETA7
    #1: Fri Oct 15 21:46:01 UTC 2004 root@:/usr/obj/usr/src/sys/GENERIC i386
Build Date: 12 October 2004
    Before reporting problems, check http://wiki.X.Org
    to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Oct 16 21:31:37 2004
(II) Module ABI versions:
    X.Org ANSI C Emulation: 0.2
    X.Org Video Driver: 0.7
    X.Org XInput driver : 0.4
    X.Org Server Extension : 0.2
    X.Org Font Renderer : 0.4
(II) Loader running on freebsd
(II) LoadModule: "bitmap"
(II) Loading /usr/X11R6/lib/modules/fonts/libbitmap.a
(II) Module bitmap: vendor="X.Org Foundation"
    compiled for 6.8.1, module version = 1.0.0
    Module class: X.Org Font Renderer
    ABI class: X.Org Font Renderer, version 0.4
(II) Loading font Bitmap
(II) LoadModule: "pcidata"
(II) Loading /usr/X11R6/lib/modules/libpcidata.a
(II) Module pcidata: vendor="X.Org Foundation"
    compiled for 6.8.1, module version = 1.0.0
    ABI class: X.Org Video Driver, version 0.7
(--) Using syscons driver with X support (version 2.0)
(--) using VT number 9


Fatal server error:
xf86EnableIO: Failed to open /dev/io for extended I/O
======================================================================

#ll /dev/io
----------------------------------------------------------------------
crw-------  1 root  wheel  250,  14 16 ПЛФ 21:08 /dev/io
======================================================================

What does it mean?