I've run into a bit of a problem with my newly acquired HP 9000/360.

Regardless of kernel, boards, board position, expansion RAM in or out etc
I can't get the system to boot.

I would normally suspect memory or something but the PROM tests it out
fine.

I'm netbooting from a pmax box and have extracted kern, base, etc, made
devices etc.

The machine has but 8 megs of RAN so I'm kind of doubting the ability to
boot the .gdb kernel.

Here is what I do have:

>> NetBSD/hp300 Primary Boot, Revision 1.9
>> (scottr@beech, Wed May 13 18:32:48 CDT 1998)
>> HP 9000/360 SPU
>> Enter "reset" to reset system.
Boot: [[[le0a:]netbsd][-s][-a][-d]] :- netbsd-1.3.2
boot: client IP address: 10.0.1.68
boot: client name: hp360
root addr=10.0.1.64 path=/export/diskless/hp360.root
887048le0_poll: rmd status 0x6b00
le0_poll: rmd status 0x6b00
le0_poll: rmd status 0x6b00
le0_poll: rmd status 0x6b00
+41092+134848+[154608le0_poll: rmd status 0x6b00
+142021] total=0xff94f601
Entry point: 0xff803400
[ preserving 296640 bytes of netbsd symbol table ]
Copyright (c) 1996, 1997, 1998
    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 1.3.2 (GENERIC) #0: Fri May 15 12:41:16 CDT 1998
    scottr@beech:/usr/src/sys/arch/hp300/compile/GENERIC
HP 9000/360 (25MHz MC68030 CPU+MMU, 25MHz MC68882 FPU)
cpu: delay divisor 81
real mem  = 8376320
avail mem = 4780032
using 204 buffers containing 835584 bytes of memory
Parity detection enabled
mainbus0 (root)
intio0 at mainbus0
topcat0 at intio0 addr 0x560000: 1280 x 1024 256 color hi-res catseye
display
grf0 at topcat0
ite0 at grf0
dio0 at mainbus0: 98620C, 2 channels, 32 bit DMA
nhpib0 at dio0 scode 7 ipl 3: internal HP-IB
hpibbus0 at nhpib0
ppi0le0 at dio0 scode 21 ipl 5: address 08:00:09:03:e6:f4
le0: 8 receive buffers, 2 transmit buffers
trap: bad kernel read access at 0x71
trap type 8, code = 0x4020755, v = 0x71
kernel program counter = 0xb7e42
kernel: MMU fault trap
pid = 0, pc = 000B7E42, ps = 2500, sfc = 1, dfc = 1
Registers:
             0        1        2        3        4        5        6
7
dreg: 0000001A 00000007 00000000 00000000 0000000C 00000000 000D9000
00000000
areg: 000B7DE2 00C40000 00000000 00A00000 02008800 FF802000 00158F0C
FFEFFFFC

Kernel stack (00158E00):
158E00: 000CCDDC 00158E50 00000080 00000000 00000000 0000000C 00000000
000D9000
158E20: 00000000 00000000 00A00000 02008800 FF802000 00000000 00000000
00158F0C
158E40: 00001904 00000008 04020755 00000071 0000001A 00000007 00000000
00000000
158E60: 0000000C 00000000 000D9000 00000000 000B7DE2 00C40000 00000000
00A00000
158E80: 02008800 FF802000 00158F0C FFEFFFFC 00000000 2500000B 7E42B008
0EEC0755
158EA0: 671E4280 00000071 00000071 00000007 082A0071 000B7E4C 000B7E4A
000B7E48
158EC0: 00000003 0005FF0D 000FF69F 00050071 000246BA 00000005 00000005
80040000
158EE0: 00A00011 00000000 00000074 000B7E3C 00000000 00000005 00000007
0200BE40
158F00: 00158F74 FF950000 FF802000 00158F28 000C9FD4 02008800 00000224
00000001
158F20: 00000002 00158F78 00158F50 00001D40 00000074 00002704 00000242
00000BBF
158F40: 00C40000 20000000 256A0074 000C6E20 00158F7C 000C8A7E 0000000C
FF802000
158F60: FFFFFFFC 0014E000 A0000006 FFEFFFFC 000F83CC 034C0000 005B0000
00158FAC
158F80: 000188B0 000DC0DC 0000000C FF802000 FFFFFFFC FFEFFFFC FF803810
0015D000
158FA0: 00000000 00000000 FFFFFFFC FFFFEF20 A0000006 00000000 FFEFFFFC
FF803810
158FC0: 00000011 00025DE6 0015D000 00001000 00001000 FFEFFFFC FF803810
00158FF4
158FE0: 000C8678 0015D000 00001000 0000000C 00000000 00000000 00000000
00000000
panic: MMU fault
Stopped at      _Debugger+0x6:  unlk    a6
db> trace
_Debugger(2504,158e3c,ccdfa,cc9df,0) + 6
_panic(cc9df,0,0,c,0) + 40
_trap(8,4020755,71) + 236
faultstkadj(2008800,224,1,2,158f78) + 0
_intr_dispatch(74) + 7e
_intrhand(?)
_configure(c,ff802000,fffffffc,14e000,a0000006) + a
_cpu_startup(dc0dc,c,ff802000,fffffffc,ffeffffc) + 29e
vm_fault(0x162000, a0000000, 1, 0) -> 1
  type 8, code [mmu,,ssw]: 401074d
trap type 8, code = 0x401074d, v = 0xa0000000
kernel program counter = 0xc847e
kernel: MMU fault trap
Caught exception in ddb.
_main() + 4a
_main() + 4a
  
I've tried kernels from 1.3, 1.3.1, and 1.3.2; results are the same.

I note that others seem to have encountered 'trap: bad kernel read access
at XX' but this seems to be a nonspecific error.  (At least in the sense
that the problems others reported didn't seem to be related to my
situation.)

Any ideas?

/* 
   Matthew N. Dodd		| A memory retaining a love you had for life	
   winter@jurai.net		| As cruel as it seems nothing ever seems to
   http://www.jurai.net/~winter | go right - FLA M 3.1:53	
*/