Hi,
I'm trying to boot a -current (as of today) kernel on a U5, but if fails:
Rebooting with command: boot disk:d netbsd                            
Boot device: /pci@1f,0/pci@1,1/ide@3/disk@0,0:d  File and args: netbsd
NetBSD IEEE 1275 Bootblock
..>> NetBSD/sparc64 OpenFirmware Boot, Revision 
>> (martin@setting-sun.duskware.de, Thu Jun 28 20:24:14 CEST 2001)
devopen: getdisklabel sez no disk label
devopen: search_label sez no disk label
loadfile: reading header
elf64_exec: Booting /pci@1f,0/pci@1,1/ide@3/disk@0,0:d/netbsd
2479329@0x1000000+118184@0x1800000+380688@0x181cda8 
symbols @ 0xfff12300 74+196824+102957 start=0x1000000
chain: calling OF_chain(800000, ee30, 1000000, fffa9a80, 18)
[ using 300632 bytes of netbsd ELF symbol table ]
Fast Data Access MMU Miss

An older (a month ago) 1.5X kernel works:
Rebooting with command: boot disk:d netbsd.old                        
Boot device: /pci@1f,0/pci@1,1/ide@3/disk@0,0:d  File and args: netbsd.old
NetBSD IEEE 1275 Bootblock
..>> NetBSD/sparc64 OpenFirmware Boot, Revision 
>> (martin@setting-sun.duskware.de, Thu Jun 28 20:24:14 CEST 2001)
devopen: getdisklabel sez no disk label
devopen: search_label sez no disk label
loadfile: reading header
elf64_exec: Booting /pci@1f,0/pci@1,1/ide@3/disk@0,0:d/netbsd.old
2469085@0x1000000+117736@0x1800000+373384@0x181cbe8 
symbols @ 0xfff12300 74+195504+102157 start=0x1000000
chain: calling OF_chain(800000, ee30, 1000000, fffa9a80, 18)
[ using 298512 bytes of netbsd ELF symbol table ]
Setting DTLB entry 00000000 01000000 data e0000000 17c00074
Setting DTLB entry 00000000 01800000 data e0000000 17800076
Setting ITLB entry 00000000 01000000 data e0000000 17c00074
Setting CPUINFO mappings...
Setting TSB pointer 00000000 0188a000
consinit()
setting up stdin
stdin instance = fff93a68
setting up stdout
stdout instance = fff9bd40
stdout package = f006159c
console is unknown
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001
    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 1.5X (JAVA) #0: Wed Aug  8 17:22:04 MEST 2001
    bouyer@java:/home/cvs.netbsd.org/src/sys/arch/sparc64/compile/JAVA
total memory = 128 MB
avail memory = 110 MB
using 832 buffers containing 6656 KB of memory
bootpath: /pci@1f,0/pci@1,1/ide@3,0/disk@0,0:d
mainbus0 (root): SUNW,Ultra-5_10
cpu0 at mainbus0: SUNW,UltraSPARC-IIi @ 400 MHz, version 0 FPU
cpu0: physical 4K instruction (32 b/l), 4K data (32 b/l), 2048K external (64 b/l) 
psycho0 at mainbus0 addr 0xfffc4000
SUNW,sabre: impl 0, version 0: ign 7c0 bus range 0 to 2; PCI bus 0
intr_establish: intr reused 7c0
DVMA map: c0000000 to e0000000
pci0 at psycho0
pci0: i/o space, memory space enabled
ppb0 at pci0 dev 1 function 1: Sun Microsystems Simba PCI bridge (rev. 0x13)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
ebus0 at pci1 dev 1 function 0
ebus0: Sun Microsystems PCIO Ebus2, revision 0x01
auxio0 at ebus0 addr 726000-726003, 728000-728003, 72a000-72a003, 72c000-72c003, 72f000-72f003
power at ebus0 addr 724000-724003 ipl 37 not configured
SUNW,pll at ebus0 addr 504000-504002 not configured
se at ebus0 addr 400000-40007f ipl 43 not configured
com0 at ebus0 addr 3083f8-3083ff ipl 41: ns16550a, working fifo
kbd0 at com0
com1 at ebus0 addr 3062f8-3062ff ipl 42: ns16550a, working fifo
ms0 at com1
lpt0 at ebus0 addr 3043bc-3043cb, 30015c-30015d, 700000-70000f ipl 34
fdthree at ebus0 addr 3023f0-3023f7, 706000-70600f, 720000-720003 ipl 39 not configured
clock0 at ebus0 addr 0-1fff: mk48t59: hostid 80fe1d6a
flashprom at ebus0 addr 0-fffff not configured
SUNW,CS4231 at ebus0 addr 200000-2000ff, 702000-70200f, 704000-70400f, 722000-722003 ipl 35 ipl 36 not configured
hme0 at pci1 dev 1 function 1: address 08:00:20:fe:1d:6a
nsphy0 at hme0 phy 1: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
OF_mapintr failed
hme0: using ivec 3021 for interrupt
ATI Technologies Mach64 B (VGA display, revision 0x5c) at pci1 dev 2 function 0 not configured
pciide0 at pci1 dev 3 function 0: CMD Technology PCI0646 (rev. 0x03)
pciide0: bus-master DMA support present
pciide0: primary channel configured to native-PCI mode
OF_mapintr failed
pciide0: using ivec 1820 for native-PCI interrupt
wd0 at pciide0 channel 0 drive 0: <ST320420A>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 19458 MB, 39535 cyl, 16 head, 63 sec, 512 bytes/sect x 39851760 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
wd1 at pciide0 channel 0 drive 1: <ST320414A>
wd1: drive supports 16-sector PIO transfers, LBA addressing
wd1: 19458 MB, 39535 cyl, 16 head, 63 sec, 512 bytes/sect x 39851760 sectors
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(pciide0:0:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
wd1(pciide0:0:1): using PIO mode 4, DMA mode 2 (using DMA data transfers)
pciide0: secondary channel configured to native-PCI mode
atapibus0 at pciide0 channel 1: 2 targets
cd0 at atapibus0 drive 0: <CRD-8483B, 2001/02/16, 1.01> type 5 cdrom removable
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
ppb1 at pci0 dev 1 function 0: Sun Microsystems Simba PCI bridge (rev. 0x13)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
tl0 at pci2 dev 3 function 0
tl0: Compaq Netelligent 10/100 TX
tl0: Ethernet address 00:80:5f:19:69:d0
OF_mapintr failed
tl0: interrupting at ivec 18
nsphy1 at tl0 phy 1: DP83840 10/100 media interface, rev. 1
nsphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
tlphy0 at tl0 phy 31: ThunderLAN 10BASE-T media interface, rev. 5
tlphy0: no media present
pcons0 at mainbus0
No counter-timer -- using %tick at 400MHz as system clock.
Using %tick -- intr in 4000000 cycles...done.
IPsec: Initialized Security Association Processing.
root on wd0d dumps on wd0b

Same config file.

Do I need to do something special, like update the toolchain ?

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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