i bought two 128Meg dimms for this AXi, which had two 64M dimms before.
since, it has produced the following during kernel/release builds, at
which point it locks up hard.  memory tests pass, but i suppose that
doesnt mean much.

anyone decode this or point me toward a doc so i (try to) can figure
out what this means on my own?

RED State Exception

TL=0000.0000.0000.0005 TT=0000.0000.0000.0030
   TPC=0000.0000.0100.8cd4 TnPC=0000.0000.0100.8cd8 TSTATE=0000.0000.5800.0505
TL=0000.0000.0000.0004 TT=0000.0000.0000.0030
   TPC=0000.0000.0100.8cd4 TnPC=0000.0000.0100.8cd8 TSTATE=0000.0000.5800.0505
TL=0000.0000.0000.0003 TT=0000.0000.0000.0030
   TPC=0000.0000.0100.8cd4 TnPC=0000.0000.0100.8cd8 TSTATE=0000.0000.5800.0505
TL=0000.0000.0000.0002 TT=0000.0000.0000.0030
   TPC=0000.0000.0100.924c TnPC=0000.0000.0100.9250 TSTATE=0000.0000.8200.1505
TL=0000.0000.0000.0001 TT=0000.0000.0000.0063
   TPC=0000.0000.0100.9310 TnPC=0000.0000.0100.9314 TSTATE=0000.0000.8200.0604

SPARCengine(tm)Ultra(tm) AXi (UltraSPARC-IIi 440MHz), No Keyboard
OpenBoot 3.10.8 SME, 256 MB memory installed, Serial #12986113.
Ethernet address 8:0:20:c6:27:1, Host ID: 80c62701.

Probing Memory Group #0 128 + 128 : 256 Megabytes
Probing Memory Group #1   0 +   0 :   0 Megabytes
Probing Memory Group #2   0 +   0 :   0 Megabytes
Probing Memory Group #3   0 +   0 :   0 Megabytes

Boot device: disk0  File and args: 
NetBSD IEEE 1275 Bootblock
..>> NetBSD/sparc64 OpenFirmware Boot, Revision 1.5
>> (root@, Mon Oct  1 23:35:26 UTC 2001)
devopen: getdisklabel sez no disk label
loadfile: reading header
elf64_exec: Booting /pci@1f,0/pci@1/scsi@1/disk@0,0:a/netbsd
3232848@0x1000000+128392@0x1800000+4065912@0x181f588 
symbols @ 0xfeeae300 74+216648+111157 start=0x1000000
chain: calling OF_chain(800000, ee20, 1000000, fffa5a80, 18)
[ using 328656 bytes of netbsd ELF symbol table ]
Setting DTLB entry 00000000 01000000 data e0000000 27800074
Setting DTLB entry 00000000 01800000 data e0000000 27400076
Setting ITLB entry 00000000 01000000 data e0000000 27800074
Setting CPUINFO mappings...
Setting TSB pointer 00000000 01890000
consinit()
setting up stdin
chosen = f002d8b0, stdin @ 0x1813ba8
stdin instance = fff93818
stdin node = f00691b4
setting up stdout
stdout instance = fff93ed8
stdout package = f00691b4
buffer @ 0x1c09d90
console is /pci@1f,0/pci@1,1/ebus@1/se@14,400000:a
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 1.5Y (maple) #0: Tue Oct  9 02:25:25 UTC 2001
    root@maple:/home/src/sys/arch/sparc64/compile/maple
total memory = 256 MB
avail memory = 228 MB
using 1651 buffers containing 13208 KB of memory
bootpath: /pci@1f,0/pci@1,0/scsi@1,0/disk@0,0
mainbus0 (root): SUNW,UltraSPARC-IIi-Engine
cpu0 at mainbus0: SUNW,UltraSPARC-IIi @ 440.127 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 0xfffc0000
SUNW,sabre: impl 0, version 0: ign 7c0 bus range 0 to 128; 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 3803f8-3803ff ipl 41: ns16550a, working fifo
kbd0 at com0
com1 at ebus0 addr 3602f8-3602ff ipl 42: ns16550a, working fifo
ms0 at com1
lpt0 at ebus0 addr 340278-340287, 30015c-30015d, 700000-70000f ipl 34
fdthree at ebus0 addr 3203f0-3203f7, 706000-70600f, 720000-720003 ipl 39 not configured
clock0 at ebus0 addr 0-1fff: mk48t59: hostid 80c62701
flashprom at ebus0 addr 0-fffff not configured
beeper at ebus0 addr 722000-722003 not configured
SUNW,rasctrl at ebus0 addr 600000-600003 ipl 40 ipl 37 not configured
hme0 at pci1 dev 1 function 1: Sun Happy Meal Ethernet, rev. 1
hme0: interrupting at ivec 3021
hme0: Ethernet address 08:00:20:c6:27:01
nsphy0 at hme0 phy 1: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
ppb1 at pci0 dev 1 function 0: Sun Microsystems Simba PCI bridge (rev. 0x13)
pci2 at ppb1 bus 128
pci2: i/o space, memory space enabled
siop0 at pci2 dev 1 function 0: Symbios Logic 53c875 (ultra-wide scsi)
siop0: using on-board RAM
siop0: interrupting at ivec 20
scsibus0 at siop0: 16 targets, 8 luns per target
siop1 at pci2 dev 1 function 1: Symbios Logic 53c875 (ultra-wide scsi)
siop1: using on-board RAM
intr_establish: intr reused 7e0
siop1: interrupting at ivec 20
scsibus1 at siop1: 16 targets, 8 luns per target
Sun Microsystems PCIO Ebus2 (miscellaneous bridge, revision 0x01) at pci2 dev 2 function 0 not configured
hme1 at pci2 dev 2 function 1: Sun Happy Meal Ethernet, rev. 1
hme1: interrupting at ivec 3001
hme1: Ethernet address 08:00:20:c6:27:01
nsphy1 at hme1 phy 1: DP83840 10/100 media interface, rev. 1
nsphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pcons0 at mainbus0
No counter-timer -- using %tick at 440MHz as system clock.
Using %tick -- intr in 4401270 cycles...done.
scsibus0: waiting 2 seconds for devices to settle...
siop0: alloc newcdb at PHY addr 0xc0034000
sd0 at scsibus0 target 0 lun 0: <IBM, DGHS09Y, 03E0> SCSI3 0/direct fixed
sd0: 8748 MB, 8152 cyl, 10 head, 219 sec, 512 bytes/sect x 17916240 sectors
sd0: sync (50.0ns offset 16), 8-bit (20.000MB/s) transfers, tagged queueing
sd1 at scsibus0 target 1 lun 0: <IBM, DGHS09Y, 03E0> SCSI3 0/direct fixed
sd1: 8748 MB, 8152 cyl, 10 head, 219 sec, 512 bytes/sect x 17916240 sectors
sd1: sync (50.0ns offset 16), 8-bit (20.000MB/s) transfers, tagged queueing
scsibus1: waiting 2 seconds for devices to settle...
siop1: alloc newcdb at PHY addr 0xc0036000
root device: sd0
dump device (default sd0b): 
file system (default generic): 
root on sd0a dumps on sd0b
mountroot: trying cd9660...
mountroot: trying ffs...
WARNING: clock gained 5 days -- CHECK AND RESET THE DATE!
root file system type: ffs
init: copying out path `/sbin/init' 11