При старте пересборки ядра вылазит ошибка
[root@artss /usr/src/sys/i386/conf]# config ARTSS
config: ARTSS:1: only one machine directive is allowed

вот мой конфиг

[root@artss /usr/src/sys/i386/conf]# cat artss        
machine         i386                                  
cpu             I686_CPU                              
ident           art                                  
maxusers        1024                                  

options         SCHED_4BSD              # 4BSD scheduler
options         INET                    # InterNETworking
options         FFS                     # Berkeley Fast Filesystem
options         SOFTUPDATES             # Enable FFS soft updates support
options         UFS_DIRHASH             # Improve performance on big directories
options         PROCFS                  # Process filesystem (requires PSEUDOFS)
options         PSEUDOFS                # Pseudo-filesystem framework          
options         COMPAT_43               # Compatible with BSD 4.3 [KEEP THIS!]  
options         COMPAT_FREEBSD4         # Compatible with FreeBSD4              
options         COMPAT_FREEBSD5         # Compatible with FreeBSD5              
options         SCSI_DELAY=15000        # Delay (in ms) before probing SCSI    
options         KTRACE                  # ktrace(1) support                    
options         SYSVSHM                 # SYSV-style shared memory              
options         SYSVMSG                 # SYSV-style message queues            
options         SYSVSEM                 # SYSV-style semaphores                
options         _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev          
options         AHC_REG_PRETTY_PRINT    # Print register bitfields in debug      
                                        # output.  Adds ~128k to driver.        
options         AHD_REG_PRETTY_PRINT    # Print register bitfields in debug      
                                        # output.  Adds ~215k to driver.        
options         ADAPTIVE_GIANT          # Giant mutex is adaptive.              

options         SMP

#####################################################################################

# Change the size of the kernel virtual address space.  Due to
# constraints in loader(8) on i386, this must be a multiple of 4.
# 256 = 1 GB of kernel address space.  Increasing this also causes
# a reduction of the address space in user processes.  512 splits
# the 4GB cpu address space in half (2GB user, 2GB kernel).  For PAE
# kernels, the value will need to be double non-PAE.  A value of 1024
# for PAE kernels is necessary to split the address space in half.  
# This will likely need to be increased to handle memory sizes >4GB.
# PAE kernels default to a value of 512.                            
#                                                                    

#options                PAE                     # Physical Address Extensions Kernel

#options                KVA_PAGES=260

#####################################################################################

device          apic                    # I/O APIC

device          isa
device          eisa
device          pci

# ATA and ATAPI devices
device          ata    
device          atadisk         # ATA disk drives
device          ataraid         # ATA RAID drives
device          atapicd         # ATAPI CDROM drives
device          atapifd         # ATAPI floppy drives
device          atapist         # ATAPI tape drives
options         ATA_STATIC_ID   # Static device numbering

device          scbus
device          mpt
device          da

device          ciss            # Compaq Smart RAID 5*
device          twa             # 3ware 9000 series PATA/SATA RAID
device          atkbdc          # AT keyboard controller
device          atkbd           # AT keyboard

device          splash          # Splash screen and screen saver support
device          vga
device          sc

device          npx

device          pmtimer

device          miibus          # MII bus support
device          bce             # Broadcom BCM5706/BCM5708 Gigabit Ethernet
device          bge             # Broadcom BCM570xx Gigabit Ethernet
device          fxp             # Intel EtherExpress PRO/100B (82557, 82558)
device          em              # Intel PRO/1000 adapter Gigabit Ethernet Card

device          loop            # Network loopback
device          ether           # Ethernet support
device          pty             # Pseudo-ttys (telnet etc)
device          bpf             # Berkeley packet filter
device          random
device          mem

options         IPFIREWALL
options         IPFIREWALL_VERBOSE
options         IPFIREWALL_FORWARD
options         IPFIREWALL_DEFAULT_TO_ACCEPT

device          pf              # PF
device          pflog           # PF Log
device          pfsync          # PF Sync

options         ALTQ            # to avoid annoying error messages
options         ALTQ_CBQ
options         ALTQ_RED
options         ALTQ_RIO
options         ALTQ_HFSC
options         ALTQ_PRIQ

options         IPSS

и нигде дальше по тексту не повторяется директива machine  

система FreeBSD 6.3-RELEASE-p5 #0

в гугле только ссылку на ман по config