I know I'm doing something wrong, but I don't know what.  I'm running
NetBSD 1.4A (May 1) on an AMD K6/233 machine with ncr0 and pciide (VIA
chipset).  The only disk is on pciide, the ncr0 has a tape drive on it.
(dmesg below)

When I try -current (as of last night), I get as far as
	"de0: enabling Full Duplex 100baseTX port"
and it hangs.  I compiled DEBUG and it prints
	"copying out path `/sbin/init' 11"
then nothing.

When I boot the May 1st kernel again, it works fine.

Anyone have any ideas before I start going deeper into this?

dmesg:

NetBSD 1.4A (BACKUP) #0: Sat May  1 15:01:33 EDT 1999
    briggs@backup:/usr/src/sys/arch/i386/compile/BACKUP
cpu0: family 5 model 6 step 2
cpu0: AMD K6 (586-class)
real mem  = 133824512
avail mem = 121720832
using 1659 buffers containing 6795264 bytes of memory
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o enabled, memory enabled
pchb0 at pci0 dev 0 function 0
pchb0: VIA Technologies VT82C597 (Apollo VP3) Host-PCI Bridge (rev. 0x01)
ppb0 at pci0 dev 1 function 0: VIA Technologies VT82C597 (Apollo VP3) PCI-AGP (rev. 0x00)
pci1 at ppb0 bus 1
pci1: i/o enabled, memory enabled
pcib0 at pci0 dev 7 function 0
pcib0: VIA Technologies VT82C586 (Apollo VP) PCI-ISA Bridge (rev. 0x41)
pciide0 at pci0 dev 7 function 1: VIA Technologies VT82C586A IDE Controller
pciide0: bus-master DMA support present
pciide0: primary channel configured to compatibility mode
wd0 at pciide0 channel 0 drive 0: <IBM-DHEA-36481>
wd0: drive supports 16-sector pio transfers, lba addressing
wd0: 6197MB, 12592 cyl, 16 head, 63 sec, 512 bytes/sect x 12692736 sectors
wd0: 32-bits data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2
pciide0: primary channel interrupting at irq 14
pciide0: secondary channel configured to compatibility mode
pciide0: disabling secondary channel (no drives)
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (using DMA data transfers)
uhci0 at pci0 dev 7 function 2: VIA Technologies VT83C572 USB Controller (rev. 0x02)
uhci0: interrupting at irq 11
uhci0: USB version 1.0
usb0 at uhci0
uhub0 at usb0
uhub0: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
VIA Technologies VT82C586 (Apollo VP) Power Management Controller (miscellaneous bridge, revision 0x10) at pci0 dev 7 function 3 not configured
ncr0 at pci0 dev 17 function 0: ncr 53c810a fast10 scsi
ncr0: interrupting at irq 10
ncr0: minsync=25, maxsync=206, maxoffs=8, 16 dwords burst, normal dma fifo
ncr0: single-ended, open drain IRQ driver
ncr0: restart (scsi reset).
scsibus0 at ncr0: 8 targets, 8 luns per target
st0 at scsibus0 targ 2 lun 0: <EXABYTE, EXB-8505, 0051> SCSI2 1/sequential removable
st0: st0(ncr0:2:0): 5.0 MB/s (200 ns, offset 8)
drive empty
vga1 at pci0 dev 18 function 0: Trident Microsystems TGUI 9660 (rev. 0xd3)
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
de0 at pci0 dev 19 function 0
de0: interrupting at irq 9
de0: 21140A [10-100Mb/s] pass 2.2
de0: address 00:40:05:30:c8:52
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
lpt0 at isa0 port 0x378-0x37b irq 7
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard
opmsprobe: command error
pcppi0 at isa0 port 0x61
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
isapnp0: no ISA Plug 'n Play devices found
apm0 at mainbus0: Power Management spec V1.1 (slowidle)
apm0: A/C state: on
apm0: battery charge state: no battery
biomask 4c00 netmask 4e00 ttymask 4e82
wscons: wskbd0 glued to wsdisplay0 (console)
boot device: wd0
root on wd0a dumps on wd0b
de0: enabling Full Duplex 100baseTX port
de0: abnormal interrupt: transmit underflow (raising TX threshold to 96|256)
de0: abnormal interrupt: transmit underflow (raising TX threshold to 128|512)
de0: abnormal interrupt: transmit underflow (raising TX threshold to 160|1024)