I've tried to boot kernel w/ matt's patch for X1 and plus.

boot messages(copied by hand):

Rebooting with command: boot disk:h -a
Boot device: /pci@f1,0/ide@d/disk@0,0:h File and args: -a
NetBSD IEEE 1275 Bootblock
..>> NetBSD/sparc64 OpenFireware Boot, Revision 1.3
>> (eeh@nonplus.netbsd.org, Sat Jan 13 09:08:17 PST 2001)
Boot: netbsd -as
devopen: getdisklabel sez no disk label
devopen: search_label sez no disk label
loadfiles: reading header
elf64_exec: Booting /pci@1f,0/ide@d/disk@0,0:h/netbsd
2b03200@0x1000000+05248@0x1400000+431928@0x1417410
symbols @ 0xfdd96300 74+201528+107047 start=0x1000000
chain: calling OF_chain(800000, ed60, 1000000, fff63a80, 18)
[ using 309424 bytes of netbsd ELF symbol table ]
pmap_bootstrap: could not claim physical dseg extention at 27c82000 size 37e000
console is keyboard/display
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001
    The NetBSD Foundations, Inc. All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.   All rights reserved.

NetBSD 1.5V (BLADE100) #36: Mon Jul  2 10:14:35 JST 2001
    ura@unknown:/local/src/NetBSD/current/src/sys/arc/sparc64/compile/BLADE100
total memory = 256MB
avail memory = 228MB
using 1651 buffers containing 13208 KB of memory
bootpath: /pci@1f,0/ide@d,0/disk@0,0:h
mainbus0 (root): SUNW,Sun-Blade-100
cpu0 at mainbus0: SUNW,UltraSPARC-IIe @ 502MHz, version 0 FPU
cpu0: physical 4K instruction (32 b/l), 4K data (32 b/l), 8192K external (64 b/l)
psycho0 at mainbus0: sabre: ign 7c0 ; bus range 0 to 1; simba a, PCI bus 0
DVMA map: c0000000 to ffffe000
pci0 at psycho0
pci0: i/o space, memory space enabled
ebus0 at pci0 dev 12 function 0
ebus0: Sun Microsystems PCI0 Ebus2 (US III), revision 0x01
flashprom at ebus0 addr 0-fffff not configured
clock0 at ebus0 addr 0-1fff: mk48c59: hostid 8300c268
ebus_attach: idprom: incomplete
Sun Microsystems ERI Ethernet (ethernet network, revision 0x01) at pci0 dev 12 function 1 not configured
Sun Microsystems FireWire controller (Firewire serial bus, interface 0x10, revision 0x01) at pci0 dev 12 function 2 not configured
Sun Microsystems USB controller (USB serial bus, interface 0x10, revision 0x01) at pci0 dev 12 function 3 not configured
Acer Labs M1543 PCI-ISA Bridge (ISA bridge) at pci0 dev 7 function 0 not configured
Acer Labs M7101 Power Management Controller (miscellaneous prehistoric) at pci0 dev 3 function 0 not configured
Acer Labs product 0x5451 (audio multimedia, revision 0x01) at pci0 dev 8 function 0 not configured
pciide0 at pci0 dev 13 function 0: Acer Labs M5229 UDMA IDE Controller (rev. 0xc3)
pciide0: bus-master DMA support present
pciide0: primary channel configured to native-PCI mode

psycho_intr_establish: ihandle c ver c ino c
psycho: intr c: 0x0
Hunting for IRQ...
- turning on PCI intr 3; installing handler 0x119d66c arg 0x1bc8000 with ino 12 pil 5
; read intrmap = 00000000000007cc; addr of intrmapptr = 0xe0028c18; writing intrmap = 00000000000007cc
pciide0 : using ipl 12 for native-PCI interrupt
atapibus0 at pciide 0 channel 0: 2 targets
cd0 at atapibus0 drive 1: <LIN486S, , YSU1> type 5 cdrom removable
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
wd0 at pciide0 channel 0 drive 0: <ST315310A>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 14594 MB, 29651 cyl, 16 head, 63 sec, 512 bytes/sect x 29888820 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
pciide0: secondary channel configured to native-PCI mode
pciide0: disabling secondary channel (no drives)
ppb0 at pci0 dev 5 function 0: Digital Equipment DECchip 21152 PCI-PCI Bridge (rev 0x03)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
ATI Technologies product 0x4752 (VGA display, revision 0x65) at pci0 dev 19 function 0 not configured
pcons0 at mainbus0
No counter-timer -- using %tick at 502MHz as system clock.
IPsec: Initialized Security Association Processing.
root device (default wd0h):
dump device (default wd0b):
file system (default generic):
root on wd0h dumps on wd0b
pciide0:0:0: lost interrupt
        type: ata tc_bcount: 512 tc_skip: 0
pciide0:0:0: lost interrupt
        type: ata tc_bcount: 512 tc_skip: 0
kdb berakpoint at 1008418
trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0kdb berakpoint at 1008418
trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0trap type 0x10: pc=f000a4d0kdb berakpoint at 1008418
	(...continue...)


--
ura