FWIW... 

Day before yesterday I built out of my PR440FX machines (dual PPro 200/256) 
from scratch with the 1.6 Beta 1 snapshot on ftp.netbsd.org.  I did a "cd 
/usr; cvs checkout -P syssrc", followed by a "cd syssrc/sys/arch/i386; cvs 
update -r sommerfeld_i386mp_1 -dPA .".  I built a GENERIC.MP kernel, 
installed, and rebooted. 

This gave me: 

smp1# dmesg
NetBSD 1.6_BETA1 (GENERIC.MP) #0: Wed Jun  5 21:36:10 UTC 2002
   root@smp1:/usr/syssrc/sys/arch/i386/compile/GENERIC.MP
total memory = 159 MB
avail memory = 141 MB
using 2068 buffers containing 8272 KB of memory
BIOS32 rev. 0 found at 0xfd9f0
mainbus0 (root)
mainbus0: Intel MP Specification (Version 1.4) (INTEL    PR440FX     )
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel Pentium Pro (686-class), 198.68 MHz
cpu0: features fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features fbff<PGE,MCA,CMOV>
cpu0: I-cache 8 KB 32b/line 4-way, D-cache 8 KB 32b/line 2-way
cpu0: L2 cache 256 KB 32b/line 4-way
cpu0: ITLB 32 4 KB entries 4-way, 2 4 MB entries fully associative
cpu0: DTLB 64 4 KB entries 4-way, 8 4 MB entries 4-way
cpu0: calibrating local timer
cpu0: apic clock running at 66 MHz
cpu0: 16 page colors
cpu1 at mainbus0: apid 12 (application processor)
cpu1: starting
cpu1: Intel Pentium Pro (686-class), 198.67 MHz
cpu1: features fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu1: features fbff<PGE,MCA,CMOV>
cpu1: I-cache 8 KB 32b/line 4-way, D-cache 8 KB 32b/line 2-way
cpu1: L2 cache 256 KB 32b/line 4-way
cpu1: ITLB 32 4 KB entries 4-way, 2 4 MB entries fully associative
cpu1: DTLB 64 4 KB entries 4-way, 8 4 MB entries 4-way
mpbios: bus 0 is type PCI
mpbios: bus 18 is type ISA
ioapic0 at mainbus0 apid 13 (I/O APIC)
ioapic0: pa 0xfec00000, version 11, 24 pins
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82441FX PCI and Memory Controller (PMC) (rev. 0x02)
fxp0 at pci0 dev 6 function 0: Intel i82557 Ethernet, rev 2
fxp0: interrupting at apic 13 int 18 (irq 11)
fxp0: Ethernet address 00:a0:c9:60:34:b3
nsphy0 at fxp0 phy 1: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pcib0 at pci0 dev 7 function 0
pcib0: Intel 82371SB PCI-to-ISA Bridge (PIIX3) (rev. 0x01)
pciide0 at pci0 dev 7 function 1: Intel 82371SB IDE Interface (PIIX3) (rev. 
0x00)
pciide0: device disabled (at device)
ahc1 at pci0 dev 9 function 0
ahc1: interrupting at apic 13 int 17 (irq 11)
ahc1: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
scsibus0 at ahc1: 16 targets, 8 luns per target
fxp1 at pci0 dev 15 function 0: Intel i82557 Ethernet, rev 1
fxp1: interrupting at apic 13 int 17 (irq 11)
fxp1: Ethernet address 00:a0:c9:0c:1c:e4
nsphy1 at fxp1 phy 1: DP83840 10/100 media interface, rev. 0
nsphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
vga1 at pci0 dev 17 function 0: S3 Trio32/64 (rev. 0x00)
wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
lpt0 at isa0 port 0x378-0x37b irq 7
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
isapnp0: read port 0x203
wss1 at isapnp0 port 0x534/4,0x388/4,0x220/16 irq 5 drq 1,0
wss1: CS4236B Audio WSS/SB: CS4236B
audio0 at wss1: full duplex, mmap
opl0 at wss1: model OPL3
midi1 at opl0: WSS Yamaha OPL3
joy0 at isapnp0 port 0x200/8
joy0: CS4236B Audio GAME
joy0: joystick not connected
isapnp0: <CS4236B Audio, CSC0010, , CTRL> port 0x120/8 not configured
isapnp0: <CS4236B Audio, CSC0003, , MPU> port 0x330/2 irq 9 not configured
biomask 0 netmask 0 ttymask 0
ioapic0: enabling
ioapic0: WARNING: sharing interrupt between different IPLs (currently 
broken)
ioapic0: pin 17, ipls 70..80
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus0 target 0 lun 0: <SEAGATE, ST34572WC, 0784> SCSI2 0/direct 
fixed
sd0: 4340 MB, 6300 cyl, 8 head, 176 sec, 512 bytes/sect x 8888924 sectors
sd0: sync (50.0ns offset 8), 16-bit (40.000MB/s) transfers, tagged queueing
cd0 at scsibus0 target 5 lun 0: <IBM, CDRM00203\000\000\000\000\000!K, 8B08> 
SCSI2 5/cdrom removable
cd0: sync (100.0ns offset 15), 8-bit (10.000MB/s) transfers
boot device: sd0
root on sd0a dumps on sd0b
root file system type: ffs
cpu1: CPU 12 running
smp1# 

I've built a couple of ./build.sh and kernel builds with -j 2 or -j 3.  All 
completed fine.  I just finished with a build.sh with nothing else on the 
system: 

smp1# time ./build.sh -j 3 -O /usr/obj -T /usr/tools
<deleted>
16632.4u 5998.7s 4:39:53.19 134.7% 0+0k 24543+751574io 27784pf+199w
smp1# 

So far so good SMP team. 

Ken