CI20 machine check

[Martin Husemann <martin%duskware.de@localhost>]

Latest current dies in a machine check on my CI20:

jzrng0 at apbus0 addr 0x100000dc: Ingenic random number generator
usb2 at dwctwo0: USB revision 2.0
starting timer interrupt...
pid 1(system): trap: cpu0, mipsNN machine check in kernel mode
status=0x20200003, cause=0x60, epc=0x8004a4c0, vaddr=0xc0004044
tf=0x80e17d28 ksp=0x80e17dc8 ra=0x8002011c ppl=0
kernel: mipsNN machine check trap
Stopped in pid 1.1 (system) at  netbsd:mips32r2_cpu_switch_resume+0x38: tlbwi
db> bt
0x80e17dc8: mips32r2_cpu_switch_resume+38 (8ff1f460,3fbf9f,3fbfdf,80333340) ra 8
002011c sz 0
0x80e17dc8: cpu_switchto+58 (8ff1f460,3fbf9f,3fbfdf,80333340) ra 0 sz 0
User-level: pid 1.1

db> mach tl
TLB  0 Hi 0xc0214000 Lo0=0x05fed4000 DG attr 3 Lo1=0x05fed5000 DG attr 3 sz=0
TLB  1 Hi 0xc0216000 Lo0=0x05fed2000 DG attr 3 Lo1=0x05fed3000 DG attr 3 sz=0
TLB  2 Hi 0xc0218000 Lo0=0x05fed0000 DG attr 3 Lo1=0x05fed1000 DG attr 3 sz=0
TLB  3 Hi 0xc021a000 Lo0=0x05fece000 DG attr 3 Lo1=0x05fecf000 DG attr 3 sz=0
TLB  4 Hi 0xc021c000 Lo0=0x05fecc000 DG attr 3 Lo1=0x05fecd000 DG attr 3 sz=0
TLB  5 Hi 0xc021e000 Lo0=0x05feca000 DG attr 3 Lo1=0x05fecb000 DG attr 3 sz=0
TLB  6 Hi 0xc0220000 Lo0=0x05fec8000 DG attr 3 Lo1=0x05fec9000 DG attr 3 sz=0
TLB* 7 Hi 0x8000e000 Lo0=0x000000000    attr 0 Lo1=0x000000000    attr 0 sz=0
TLB* 8 Hi 0x80010000 Lo0=0x000000000    attr 0 Lo1=0x000000000    attr 0 sz=0
TLB  9 Hi 0xc0226000 Lo0=0x05fec2000 DG attr 3 Lo1=0x05fec3000 DG attr 3 sz=0
TLB 10 Hi 0xc0228000 Lo0=0x05fec0000 DG attr 3 Lo1=0x05fec1000 DG attr 3 sz=0
TLB 11 Hi 0xd189a000 Lo0=0x00fefe000 DG attr 3 Lo1=0x00feff000 DG attr 3 sz=0
TLB 12 Hi 0xc0002000 Lo0=0x05fffc000 DG attr 3 Lo1=0x05fffd000 DG attr 3 sz=0
TLB 13 Hi 0xc0004000 Lo0=0x05fffa000 DG attr 3 Lo1=0x05fffb000 DG attr 3 sz=0
TLB 14 Hi 0xc0180000 Lo0=0x05fef8000 DG attr 3 Lo1=0x05fef9000 DG attr 3 sz=0
TLB 15 Hi 0xc0182000 Lo0=0x05fef6000 DG attr 3 Lo1=0x05fef7000 DG attr 3 sz=0
TLB 16 Hi 0xc0184000 Lo0=0x05fef4000 DG attr 3 Lo1=0x05fef5000 DG attr 3 sz=0
TLB 17 Hi 0xc0186000 Lo0=0x05fef2000 DG attr 3 Lo1=0x05fef3000 DG attr 3 sz=0
TLB 18 Hi 0xc0188000 Lo0=0x05fef0000 DG attr 3 Lo1=0x05fef1000 DG attr 3 sz=0
TLB 19 Hi 0xc018a000 Lo0=0x05feee000 DG attr 3 Lo1=0x05feef000 DG attr 3 sz=0
TLB 20 Hi 0xc018c000 Lo0=0x05feec000 DG attr 3 Lo1=0x05feed000 DG attr 3 sz=0
TLB 21 Hi 0xc018e000 Lo0=0x05feea000 DG attr 3 Lo1=0x05feeb000 DG attr 3 sz=0
TLB 22 Hi 0xc0200000 Lo0=0x05fee8000 DG attr 3 Lo1=0x05fee9000 DG attr 3 sz=0
TLB 23 Hi 0xc0202000 Lo0=0x05fee6000 DG attr 3 Lo1=0x05fee7000 DG attr 3 sz=0
TLB 24 Hi 0xc0204000 Lo0=0x05fee4000 DG attr 3 Lo1=0x05fee5000 DG attr 3 sz=0
TLB 25 Hi 0xc0206000 Lo0=0x05fee2000 DG attr 3 Lo1=0x05fee3000 DG attr 3 sz=0
TLB 26 Hi 0xc0208000 Lo0=0x05fee0000 DG attr 3 Lo1=0x05fee1000 DG attr 3 sz=0
TLB 27 Hi 0xc020a000 Lo0=0x05fede000 DG attr 3 Lo1=0x05fedf000 DG attr 3 sz=0
TLB 28 Hi 0xc020c000 Lo0=0x05fedc000 DG attr 3 Lo1=0x05fedd000 DG attr 3 sz=0
TLB 29 Hi 0xc020e000 Lo0=0x05feda000 DG attr 3 Lo1=0x05fedb000 DG attr 3 sz=0
TLB 30 Hi 0xc0210000 Lo0=0x05fed8000 DG attr 3 Lo1=0x05fed9000 DG attr 3 sz=0
TLB 31 Hi 0xc0212000 Lo0=0x05fed6000 DG attr 3 Lo1=0x05fed7000 DG attr 3 sz=0

Martin