Reproducible panic in NetBSD-6

[John Klos <john%ziaspace.com@localhost>]

Hi,

On an Amiga 1200 running NetBSD-6 from 26-March-2012 and kernel from 
4-April-2012, I'm seeing this when trying to compile m4 from pkgsrc:


uvm_fault(0x2fc478, 0x0, 0x1) -> 0xe
  type 8, code [mmu,,ssw]: 1050200
trap type 8, code = 1050200, v = 0
pid = 13549, lid = 1, pc = 0019B794, ps = 2600, sfc = 1, dfc = 1
Registers:
             0        1        2        3        4        5        6        7
dreg: 00000000 00000001 00000000 01792000 00000000 009B53BC 001347E6 009B5098
areg: 00000000 00AC0000 0CA84040 00C828A0 00304600 001153AA 0CA87DF8 1DFFE0CC

Kernel stack (0CA87C6C):
A87C6C: 002124D0 0CA87DA0 00000080 002CC33C 00000008 01050200 00000000 00000008
A87C8C: 0CA87D10 00212B8C 00000008 01050200 00000000 0CA87DA0 00000000 00000000
A87CAC: 00000008 009B53BC 001347E6 009B5098 00C828A0 0CA87DA0 00AC0000 0BC24000
A87CCC: 00000000 00000000 00000001 11C30348 000000FC 00000001 00000000 00000000
A87CEC: 00000000 00000001 00000000 00000000 00000008 00000000 00000000 00000000
A87D0C: 00000000 0CA87D88 00212ED2 00000008 01050200 00000000 0CA87DA0 00C828A0
A87D2C: 00000000 00000000 00000000 01792000 00000000 0CA84040 00C828A0 00304600
A87D4C: 001153AA 00000000 00000000 00000001 00000000 00000000 00000000 00000000
A87D6C: 00000000 00000000 00000008 00000000 00000000 00000000 00000000 0CA87DF8
A87D8C: 00002060 0CA87DA0 00000008 01050200 00000000 00000000 00000001 00000000
A87DAC: 01792000 00000000 009B53BC 001347E6 009B5098 00000000 00AC0000 0CA84040
A87DCC: 00C828A0 00304600 001153AA 0CA87DF8 1DFFE0CC 00000000 26000019 B7944008
A87DEC: 00000000 01050200 0CA84040 0CA87E40 00002830 00C828A0 00126A98 00C82320
A87E0C: 00C828A0 00000000 00000000 0179BE00 009B50A4 00C82320 00115240 00C828A0
A87E2C: 009B6FB0 00000000 00000480 A56A167B 6A87D0EE 0CA87E5C 00123F9A 00C82320
A87E4C: 0179BE34 0179BE28 00C82320 00115240 0CA87EA4 001031B4 00000000 00000000
panic: MMU fault
Stopped in pid 13549.1 (conftest) at    netbsd:cpu_Debugger+0x6:        unlk    
a6
db> bt
cpu_Debugger(8,2fc478,c828a0,ca87c7c,1d84fa) + 6

Ideas?

John