mips74k and duplicate TLB entries

[Adrian Chadd]

Hi all,

I've started bringing up FreeBSD-HEAD on the AR9344 which is a MIPS
74k core. It panics shortly after boot, in the invalidation code.
We've traced it down thus far to duplicate entries in the TLB.

An example TLB list:

http://pastebin.ca/2423778

Now, I think it's something in MipsDoTLBMiss or
MipsTLBInvalidException in exception.S.

I'm out of my depth here. Could I please get some help in figuring out
what's going on?

Thanks!


-adrian