Eeeeep!
Unplug the CPU keyboard when running a serial console on your
model 380.  Below is what happened when my HIL keyboard was
accidentally touched while the serial console was being used:

Is this the "MMU bug" that has been mentioned to me that occurs
with the '040 chip?

Regards...

trap: bad kernel read access at 0x4
trap type 8, code = 0x505, v = 0x4
kernel program counter = 0xc8754
kernel: MMU fault trap
pid = 7605, pc = 000C8754, ps = 2100, sfc = 1, dfc = 1
Registers:
             0        1        2        3        4        5        6        7
dreg: 00000018 FFFFFF76 000000B9 0000000B 00001A34 00001A34 000E53D0 00000017
areg: 00000000 00109DC4 00109DC4 000369D0 001C1BF6 001C1BF6 00620FB0 FFEE2868

Kernel stack (00620ECC):
620ECC: 000DF5D8 00620F1C 00000080 000000B9 0000000B 00001A34 00001A34 000E53D0
620EEC: 00000017 00109DC4 000369D0 001C1BF6 001C1BF6 00000000 00000000 00620FB0
620F0C: 00001904 00000008 00000505 00000004 00000018 FFFFFF76 000000B9 0000000B
620F2C: 00001A34 00001A34 000E53D0 00000017 00000000 00109DC4 00109DC4 000369D0
620F4C: 001C1BF6 001C1BF6 00620FB0 FFEE2868 00000000 2100000C 87547008 00620FAC
620F6C: 05050005 00050005 00000004 00620F9C 00000076 00000001 00000000 00000100
620F8C: 00002104 0010A094 0008577A 005D0AFC 00000076 0000000B 00109DC4 000369D0
620FAC: 001C1BF6 00620FCC 000D7CA2 FFFFFFB9 00000076 00000017 00158DD6 0013809C
620FCC: 00620FE0 000D7C50 00109DC4 000000B9 00000076 FFEE7E0E 00001D8C 000000BC
620FEC: 00000012 FFEE65F4 FFEE4BC0 00040415 20BC0064 
panic: MMU fault
Stopped in cc1 at       _Debugger+0x6:  unlk    a6
db> cont
syncing disks... trap: bad kernel read access at 0x4
trap type 8, code = 0x505, v = 0x4
kernel program counter = 0xc8754
kernel: MMU fault trap
trap during panic!
pid = 7605, pc = 000C8754, ps = 2100, sfc = 1, dfc = 1
Registers:
             0        1        2        3        4        5        6        7
dreg: 00000018 FFFFFF76 000000B9 0000000B 000DF1AB 00000001 FFFFFF7F 00000505
areg: 00000000 00109DC4 00109DC4 005D0AFC 000F9C40 006068C0 00620E38 FFEE2868

Kernel stack (00620D54):
620D54: 000DF5D8 00620DA4 00000080 000000B9 0000000B 000DF1AB 00000001 FFFFFF7F
620D74: 00000505 00109DC4 005D0AFC 000F9C40 006068C0 00000000 00000000 00620E38
620D94: 00001904 00000008 00000505 00000004 00000018 FFFFFF76 000000B9 0000000B
620DB4: 000DF1AB 00000001 FFFFFF7F 00000505 00000000 00109DC4 00109DC4 005D0AFC
620DD4: 000F9C40 006068C0 00620E38 FFEE2868 00000000 2100000C 87547008 00620E34
620DF4: 05050005 00050005 00000004 00620E24 00000076 00029534 005D0AFC 000F9C40
620E14: 006068C0 01C17600 00620E48 00620E50 00000076 0000000B 00109DC4 005D0AFC
620E34: 000F9C40 00620E54 000D7CA2 FFFFFFB9 00000076 00620ED8 00000100 00029534
620E54: 00620E68 000D7C50 00109DC4 000000B9 00000076 00620EA0 00001D8C 00002104
620E74: 0016E117 00A00000 00040669 20000000 25640064 0004069A 00040658 00620ED8
620E94: 00000100 000DF1AB 00029534 00620EAC 000DB42E 00000100 00620ECC 00029146
620EB4: 00000100 00000000 00002104 00620F1C 00000008 00029534 00620F08 000DF5F8
620ED4: 000DF1AB 000000B9 0000000B 00001A34 00001A34 000E53D0 00000017 00109DC4
620EF4: 000369D0 001C1BF6 001C1BF6 00000000 00000000 00620FB0 00001904 00000008
620F14: 00000505 00000004 00000018 FFFFFF76 000000B9 0000000B 00001A34 00001A34
620F34: 000E53D0 00000017 00000000 00109DC4 00109DC4 000369D0 001C1BF6 001C1BF6
panic: MMU fault
Stopped in cc1 at       _Debugger+0x6:  unlk    a6
db> c

dumping to dev 4,9 offset 1286166
dump 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 succeeded
rebooting...

-skots
--
Scott G. Akmentins-Taylor     InterNet: staylor@mrynet.com
MRY Systems			        staylor@mrynet.lv
    (Skots Gregorijs Akmentins-Teilors -- just call me "Skots")
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