NetBSD/hpcmips RAMDISK kernel booting on IBM WorkPad Z50

pmap_steal_memory: seg 0: 0xc4d 0xc4d 0x1000 0x1000
pmap_steal_memory: seg 0: 0xc8d 0xc8d 0x1000 0x1000
pmap_steal_memory: seg 0: 0xc8f 0xc8f 0x1000 0x1000
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 6.1.5 (RAMDISK)
IBM WorkPad z50 2601 1AU (NEC VR4121 rev0.0 131.072MHz)
total memory = 49152 KB
total memory banks = 3
memory bank 0 = 0x00000000 12596KB(0x00c4d000)
memory bank 1 = 0x00c4d000 3788KB(0x003b3000)
memory bank 2 = 0x02000000 32768KB(0x02000000)
avail memory = 35532 KB
timecounter: Timecounters tick every 10.000 msec
mainbus0 (root)
cpu0 at mainbus0: NEC VR4100 CPU (0xc60) Rev. 6.0 with software emulated floating point
cpu0: 32 TLB entries, 256KB max page size
cpu0: 16KB/16B direct-mapped L1 instruction cache
cpu0: 8KB/16B direct-mapped write-back L1 data cache
vr4102ip0 at mainbus0
vrbcu0 at vr4102ip0 addr 0x0b000000-001f
vrbcu0: CPU 131.072MHz, bus 32.768MHz, ram 32.768MHz
vrcmu0 at vr4102ip0 addr 0x0b000060-007f
vrgiu0 at vr4102ip0 addr 0x0b000100-011f
                                             3         2         1
                                            10987654321098765432109876543210
WIN setting:                                iiiiiiiiiiiiiiiiLiiiEohiioiiiEEE
I/O setting:                                iiiiiiiiiiiiiiiiiiiiioiiioiiiiii
       data:......||.......|.|||||||||||||||................|||.|.......|||.
button0 at vrgiu0 port=1 id=12 active=low sense=edge
button2 at vrgiu0 port=2 id=16 active=low sense=edge
pwctl3 at vrgiu0 port=49 id=6 on=1
mq200: probe: vendor id=0000 product id=0000
ite8181_probe: vendor id=1283 product id=8181
vrdmaau0 at vr4102ip0 addr 0x0b000020-0037
vrdcu0 at vr4102ip0 addr 0x0b000040-004b
com0 at vr4102ip0 addr 0x0c000000-0007: ns16550a, working fifo
com0: pwctl 0
vrrtc0 at vr4102ip0 addr 0x0b0000c0-00df
vrkiu0 at vr4102ip0 addr 0x0b000180-019f
hpckbd0 at vrkiu0
wskbd0 at hpckbd0: console keyboard
vrpmu0 at vr4102ip0 addr 0x0b0000a0-00bf
vrdsu0 at vr4102ip0 addr 0x0b0000e0-00e7
vrled0 at vr4102ip0 addr 0x0b000240-024f
vrpiu0 at vr4102ip0 addr 0x0b000120-013f, 0x0b0002a0-02bf
wsmouse0 at vrpiu0 mux 0
vrpiu0: WARNING: powerhook_establish is deprecated
vrdsiu_mouse0 at vr4102ip0 addr 0x0b0001a0-01bf
wsmouse1 at vrdsiu_mouse0 mux 0
mq200: probe: vendor id=0000 product id=0000
ite8181_probe: vendor id=1283 product id=8181
ite8181video0 at vr4102ip0 addr 0x0a000000-7fffff: ITE8181 Rev.04, console
ite8181video0: framebuffer address: 0xaa000000
ite8181video0: ite8181 lcd control is DISABLED.
ite8181video0: WARNING: powerhook_establish is deprecated
ite8181_init_brightness
ite8181_init_contrast
hpcfb0 at ite8181video0: 640x480 pixels, 65536 colors, 80x48 chars
wsdisplay0 at hpcfb0 kbdmux 1: console (std, vt100 emulation), using wskbd0
wsmux1: connecting to wsdisplay0
vraiu0 at vr4102ip0 addr 0x0b000160-017f
audio0 at vraiu0: half duplex, playback, capture
vrisab0 at vrgiu0: ISA port 0x15000000-0x18000000 mem 0x10000000-0x14000000
isa0 at vrisab0
pcic0 at isa0 port 0x3e0-0x3e1 iomem 0x70000-0x73fff irq 589827
pcic0: controller 0 (Intel 82365SL Revision 1) has sockets A and B
pcic0: controller 1 (Intel 82365SL Revision 1) has sockets A and B
pcmcia0 at pcic0 controller 0 socket 0
pcmcia1 at pcic0 controller 0 socket 1
pcmcia at pcic0 controller 1 socket 0 not configured
pcmcia at pcic0 controller 1 socket 1 not configured
btnmgr0 at mainbus0
wskbd1 at btnmgr0 mux 1
wskbd1: connecting to wsdisplay0
hpcapm0 at mainbus0: pseudo power management module
apmdev0 at hpcapm0: Power Management spec V1.2
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
timecounter: Timecounter "vrrtc" frequency 32768 Hz quality 100
ISA IRQ 3 -> vrgiu0 port 9, level high through
pcic0: using irq 589827 for socket events
pcic0: WARNING: powerhook_establish is deprecated
pcic0: WARNING: powerhook_establish is deprecated
vrpiu:AD: 931, 102, 930
giu data: ......||.......|.||||||||||||||||.|.|||||.|||||||||.|.......|||.
wdc1 at pcmcia1 function 0: <SAMSUNG, Rev 1.18.6, >
pcic0: port 0x15000400-0x1500040f
wdc1: i/o mapped mode
ISA IRQ 3 -> vrgiu0 port 9, level high through
pcmcia1: card irq 3
atabus0 at wdc1 channel 0
wd0 at atabus0 drive 0
wd0: <SAMSUNG CF/ATA>
wd0: drive supports 4-sector PIO transfers, LBA addressing
wd0: 63488 KB, 248 cyl, 16 head, 32 sec, 512 bytes/sect x 126976 sectors
boot device: wd0
ISA IRQ 3 -> vrgiu0 port 9, level high through
pcmcia1: card irq 3
wd0: no disk label
md0: internal 4352 KB image area
root on md0a dumps on md0b
cannot mount root, error = 79
root device (default md0a):
dump device (default md0b):
file system (default generic):
root on md0a dumps on md0b
root file system type: ffs
WARNING: clock gained 189 days
init path (default /sbin/init):
init: trying /sbin/init