Booting a LP64 kernel on a DS5000/200 (in gxemul 0.6.0)

[Matt Thomas <matt%3am-software.com@localhost>]

I would have used 3maxplus but that's currently broken in gxemul 0.6.0 so fell 
back to a 3max (even though that only has a r3000) but overrode the CPU to a 
R4400.  So I think booting a LP64 kernel on my DS5000/240 has a real chance
of success.

GXemul 0.6.0    Copyright (C) 2003-2010  Anders Gavare
Read the source code and/or documentation for other Copyright messages.

Simple setup...
  net:
      simulated network: 10.0.0.0/8 (max outgoing: TCP=100, UDP=100)
      simulated gateway+nameserver: 10.0.0.254 (60:50:40:30:20:10)
      simulated nameserver uses real nameserver 192.168.1.117
  machine:
      memory: 256 MB
      cpu0: R4400 (I+D = 16+16 KB, L2 = 1 MB)
      machine: DECstation 5000/200 (3MAX, KN02) (25.00 MHz)
      bootstring(+bootarg): boot 5/rz0/netbsd -a
      diskimage: /u2/netbsd-nb5-mips64/evbmips-el-n32.fs
          SCSI DISK id 0, read/write, 569 MB (1167040 sectors)
      loading 
/u2/netbsd-nb5-mips64/pmax64/obj/sys/arch/pmax/compile/GENERIC64/netbsd
      cpu0: starting at 0xffffffff80030000 (gp=0xffffffff80366380)

NOTE: This is a LEGACY emulation mode.

-------------------------------------------------------------------------------

cpu0: trying to write an invalid pagemask 0x1fffe000 to COP0_PAGEMASK
mcclock loop count 1270 too low for r4000
segment  0 start 00000000 size 10000000
phys segment: 0x10000000 @ 0
adding 0x441000 @ 0x3bf000 to freelist 1
adding 0xf800000 @ 0x800000 to freelist 0
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
  2006, 2007, 2008, 2009
  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 5.0_STABLE (GENERIC64) #58: Tue Dec 28 15:46:42 PST 2010
      
matt%nixon.home@localhost:/u2/netbsd-nb5-mips64/pmax64/obj/sys/arch/pmax/compile/GENERIC64
DECstation 5000/200 (3MAX)
total memory = 256 MB
avail memory = 243 MB
mainbus0 (root)
cpu0 at mainbus0: MIPS R4400 CPU (0x440) Rev. 4.0 with MIPS R4010 FPC Rev. 0.0
cpu0: 48 TLB entries, 1TB (40-bit) VAs, 64GB (36-bit) PAs, 256MB max page size
cpu0: 16KB/16B direct-mapped L1 instruction cache
cpu0: 16KB/16B direct-mapped write-back L1 data cache
cpu0: 1024KB/64B direct-mapped write-back L2 unified cache
tc0 at mainbus0: 25 MHz clock
ibus0 at tc0 slot 7 offset 0x0
mcclock0 at ibus0 addr 0x1fe80000: mc146818 or compatible
dz0 at ibus0 addr 0x1fe00000: DC-7085, 4 lines
lkkbd0 at dz0 line 0
?????????????????wskbd0 at lkkbd0 mux 1
vsms0 at dz0 line 1
wsmouse0 at vsms0 mux 0
le0 at tc0 slot 6 offset 0x0: address 10:20:30:00:00:10
le0: 32 receive buffers, 8 transmit buffers
asc0 at tc0 slot 5 offset 0x0: NCR53C94, 25MHz, SCSI ID 7
scsibus0 at asc0: 8 targets, 8 luns per target
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus0 target 0 lun 0: <DEC, RZ58     (C) DEC, 2000> disk fixed
sd0: 569 MB, 569 cyl, 16 head, 128 sec, 512 bytes/sect x 1167041 sectors
sd0: async, 8-bit transfers
Kernelized RAIDframe activated
sd0: no disk label
boot device: sd0
root on sd0a dumps on sd0b
vfs_mountroot: can't open root device
cannot mount root, error = 6
root device (default sd0a): sd0c
dump device (default sd0b): 
file system (default generic): 
root on sd0c dumps on sd0b
root file system type: ffs
WARNING: clock gained 132 days
WARNING: CHECK AND RESET THE DATE!
warning: no /dev/console
init path (default /sbin/init): 
init: trying /sbin/init
pid 1(init): ABI set to N32 (e_flags=0x20000027)
Created mfs /dev (1019904 byte, 1920 inodes)
/etc/rc.conf is not configured.  Multiuser boot aborted.
Enter pathname of shell or RETURN for /bin/sh: 
sh: can't access tty; job control turned off
Terminal type is vt100.                                                 
We recommend creating a non-root account and using su(1) for root access.