1978nv@gmail.com wrote:

> TLB out of universe: ksp 0xc6681fc0 epc 0x801b93e4 vaddr 0xc0001000
 :
> I guess, the stack access has caused the issue.

What does "trace" command show?

FYI, I saw the similar errors on kernel stack overflow
caused by unhandled (or too high rate) interrupts:
http://mail-index.netbsd.org/port-cobalt/2006/04/23/0000.html
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Izumi Tsutsui